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jpgraph.php@ 388

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[2]	1	<?php
	2	//=======================================================================
[284]	3	// File: JPGRAPH.PHP
	4	// Description: PHP Graph Plotting library. Base module.
	5	// Created: 2001-01-08
	6	// Ver: $Id: jpgraph.php 1924 2010-01-11 14:03:26Z ljp $
[2]	7	//
[284]	8	// Copyright (c) Asial Corporation. All rights reserved.
[2]	9	//========================================================================
	10
	11	require_once('jpg-config.inc.php');
	12	require_once('jpgraph_gradient.php');
	13	require_once('jpgraph_errhandler.inc.php');
	14	require_once('jpgraph_ttf.inc.php');
	15	require_once('jpgraph_rgb.inc.php');
	16	require_once('jpgraph_text.inc.php');
	17	require_once('jpgraph_legend.inc.php');
[284]	18	require_once('jpgraph_theme.inc.php');
	19	require_once('gd_image.inc.php');
[2]	20
	21	// Version info
[346]	22	define('JPG_VERSION','4.3.4');
[2]	23
	24	// Minimum required PHP version
	25	define('MIN_PHPVERSION','5.1.0');
	26
[284]	27	// Special file name to indicate that we only want to calc
	28	// the image map in the call to Graph::Stroke() used
	29	// internally from the GetHTMLCSIM() method.
	30	define('_CSIM_SPECIALFILE','_csim_special_');
[2]	31
[284]	32	// HTTP GET argument that is used with image map
	33	// to indicate to the script to just generate the image
	34	// and not the full CSIM HTML page.
	35	define('_CSIM_DISPLAY','_jpg_csimd');
[2]	36
[284]	37	// Special filename for Graph::Stroke(). If this filename is given
	38	// then the image will NOT be streamed to browser of file. Instead the
	39	// Stroke call will return the handler for the created GD image.
	40	define('_IMG_HANDLER','__handle');
[2]	41
[284]	42	// Special filename for Graph::Stroke(). If this filename is given
	43	// the image will be stroked to a file with a name based on the script name.
	44	define('_IMG_AUTO','auto');
[2]	45
	46	// Tick density
	47	define("TICKD_DENSE",1);
	48	define("TICKD_NORMAL",2);
	49	define("TICKD_SPARSE",3);
	50	define("TICKD_VERYSPARSE",4);
	51
[284]	52	// Side for ticks and labels.
[2]	53	define("SIDE_LEFT",-1);
	54	define("SIDE_RIGHT",1);
	55	define("SIDE_DOWN",-1);
	56	define("SIDE_BOTTOM",-1);
	57	define("SIDE_UP",1);
	58	define("SIDE_TOP",1);
	59
	60	// Legend type stacked vertical or horizontal
	61	define("LEGEND_VERT",0);
	62	define("LEGEND_HOR",1);
	63
	64	// Mark types for plot marks
	65	define("MARK_SQUARE",1);
	66	define("MARK_UTRIANGLE",2);
	67	define("MARK_DTRIANGLE",3);
	68	define("MARK_DIAMOND",4);
	69	define("MARK_CIRCLE",5);
	70	define("MARK_FILLEDCIRCLE",6);
	71	define("MARK_CROSS",7);
	72	define("MARK_STAR",8);
	73	define("MARK_X",9);
	74	define("MARK_LEFTTRIANGLE",10);
	75	define("MARK_RIGHTTRIANGLE",11);
	76	define("MARK_FLASH",12);
	77	define("MARK_IMG",13);
	78	define("MARK_FLAG1",14);
	79	define("MARK_FLAG2",15);
	80	define("MARK_FLAG3",16);
	81	define("MARK_FLAG4",17);
	82
	83	// Builtin images
	84	define("MARK_IMG_PUSHPIN",50);
	85	define("MARK_IMG_SPUSHPIN",50);
	86	define("MARK_IMG_LPUSHPIN",51);
	87	define("MARK_IMG_DIAMOND",52);
	88	define("MARK_IMG_SQUARE",53);
	89	define("MARK_IMG_STAR",54);
	90	define("MARK_IMG_BALL",55);
	91	define("MARK_IMG_SBALL",55);
	92	define("MARK_IMG_MBALL",56);
	93	define("MARK_IMG_LBALL",57);
	94	define("MARK_IMG_BEVEL",58);
	95
	96	// Inline defines
	97	define("INLINE_YES",1);
	98	define("INLINE_NO",0);
	99
	100	// Format for background images
	101	define("BGIMG_FILLPLOT",1);
	102	define("BGIMG_FILLFRAME",2);
	103	define("BGIMG_COPY",3);
	104	define("BGIMG_CENTER",4);
	105	define("BGIMG_FREE",5);
	106
	107	// Depth of objects
	108	define("DEPTH_BACK",0);
	109	define("DEPTH_FRONT",1);
	110
	111	// Direction
	112	define("VERTICAL",1);
	113	define("HORIZONTAL",0);
	114
	115	// Axis styles for scientific style axis
	116	define('AXSTYLE_SIMPLE',1);
	117	define('AXSTYLE_BOXIN',2);
	118	define('AXSTYLE_BOXOUT',3);
	119	define('AXSTYLE_YBOXIN',4);
	120	define('AXSTYLE_YBOXOUT',5);
	121
	122	// Style for title backgrounds
	123	define('TITLEBKG_STYLE1',1);
	124	define('TITLEBKG_STYLE2',2);
	125	define('TITLEBKG_STYLE3',3);
	126	define('TITLEBKG_FRAME_NONE',0);
	127	define('TITLEBKG_FRAME_FULL',1);
	128	define('TITLEBKG_FRAME_BOTTOM',2);
	129	define('TITLEBKG_FRAME_BEVEL',3);
	130	define('TITLEBKG_FILLSTYLE_HSTRIPED',1);
	131	define('TITLEBKG_FILLSTYLE_VSTRIPED',2);
	132	define('TITLEBKG_FILLSTYLE_SOLID',3);
	133
[284]	134	// Styles for axis labels background
	135	define('LABELBKG_NONE',0);
	136	define('LABELBKG_XAXIS',1);
	137	define('LABELBKG_YAXIS',2);
	138	define('LABELBKG_XAXISFULL',3);
	139	define('LABELBKG_YAXISFULL',4);
	140	define('LABELBKG_XYFULL',5);
	141	define('LABELBKG_XY',6);
	142
	143
[2]	144	// Style for background gradient fills
	145	define('BGRAD_FRAME',1);
	146	define('BGRAD_MARGIN',2);
	147	define('BGRAD_PLOT',3);
	148
	149	// Width of tab titles
	150	define('TABTITLE_WIDTHFIT',0);
	151	define('TABTITLE_WIDTHFULL',-1);
	152
	153	// Defines for 3D skew directions
	154	define('SKEW3D_UP',0);
	155	define('SKEW3D_DOWN',1);
	156	define('SKEW3D_LEFT',2);
	157	define('SKEW3D_RIGHT',3);
	158
	159	// For internal use only
	160	define("_JPG_DEBUG",false);
	161	define("_FORCE_IMGTOFILE",false);
	162	define("_FORCE_IMGDIR",'/tmp/jpgimg/');
	163
	164
[284]	165	//
	166	// Automatic settings of path for cache and font directory
	167	// if they have not been previously specified
	168	//
	169	if(USE_CACHE) {
	170	if (!defined('CACHE_DIR')) {
	171	if ( strstr( PHP_OS, 'WIN') ) {
	172	if( empty($_SERVER['TEMP']) ) {
	173	$t = new ErrMsgText();
	174	$msg = $t->Get(11,$file,$lineno);
	175	die($msg);
	176	}
	177	else {
	178	define('CACHE_DIR', $_SERVER['TEMP'] . '/');
	179	}
	180	} else {
	181	define('CACHE_DIR','/tmp/jpgraph_cache/');
	182	}
	183	}
	184	}
	185	elseif( !defined('CACHE_DIR') ) {
	186	define('CACHE_DIR', '');
	187	}
	188
	189	//
	190	// Setup path for western/latin TTF fonts
	191	//
	192	if (!defined('TTF_DIR')) {
	193	if (strstr( PHP_OS, 'WIN') ) {
	194	$sroot = getenv('SystemRoot');
	195	if( empty($sroot) ) {
	196	$t = new ErrMsgText();
	197	$msg = $t->Get(12,$file,$lineno);
	198	die($msg);
	199	}
	200	else {
	201	define('TTF_DIR', $sroot.'/fonts/');
	202	}
	203	} else {
	204	define('TTF_DIR','/usr/share/fonts/truetype/');
	205	}
	206	}
	207
	208	//
	209	// Setup path for MultiByte TTF fonts (japanese, chinese etc.)
	210	//
	211	if (!defined('MBTTF_DIR')) {
	212	if (strstr( PHP_OS, 'WIN') ) {
	213	$sroot = getenv('SystemRoot');
	214	if( empty($sroot) ) {
	215	$t = new ErrMsgText();
	216	$msg = $t->Get(12,$file,$lineno);
	217	die($msg);
	218	}
	219	else {
	220	define('MBTTF_DIR', $sroot.'/fonts/');
	221	}
	222	} else {
	223	define('MBTTF_DIR','/usr/share/fonts/truetype/');
	224	}
	225	}
	226
	227	//
	228	// Check minimum PHP version
	229	//
	230	function CheckPHPVersion($aMinVersion) {
	231	list($majorC, $minorC, $editC) = preg_split('/[\/.-]/', PHP_VERSION);
	232	list($majorR, $minorR, $editR) = preg_split('/[\/.-]/', $aMinVersion);
	233
[2]	234	if ($majorC < $majorR) return false;
[284]	235
	236	if ($majorC == $majorR) {
	237	if($minorC < $minorR) return false;
	238
	239	if($minorC == $minorR){
	240	if($editC < $editR) return false;
	241	}
	242	}
	243
[2]	244	return true;
	245	}
	246
	247	//
	248	// Make sure PHP version is high enough
	249	//
	250	if( !CheckPHPVersion(MIN_PHPVERSION) ) {
	251	JpGraphError::RaiseL(13,PHP_VERSION,MIN_PHPVERSION);
	252	die();
	253	}
	254
	255	//
	256	// Make GD sanity check
	257	//
	258	if( !function_exists("imagetypes") \|\| !function_exists('imagecreatefromstring') ) {
	259	JpGraphError::RaiseL(25001);
[284]	260	//("This PHP installation is not configured with the GD library. Please recompile PHP with GD support to run JpGraph. (Neither function imagetypes() nor imagecreatefromstring() does exist)");
[2]	261	}
	262
	263	//
	264	// Setup PHP error handler
	265	//
	266	function _phpErrorHandler($errno,$errmsg,$filename, $linenum, $vars) {
	267	// Respect current error level
	268	if( $errno & error_reporting() ) {
[284]	269	JpGraphError::RaiseL(25003,basename($filename),$linenum,$errmsg);
[2]	270	}
	271	}
	272
	273	if( INSTALL_PHP_ERR_HANDLER ) {
	274	set_error_handler("_phpErrorHandler");
	275	}
	276
	277	//
[284]	278	// Check if there were any warnings, perhaps some wrong includes by the user. In this
	279	// case we raise it immediately since otherwise the image will not show and makes
	280	// debugging difficult. This is controlled by the user setting CATCH_PHPERRMSG
[2]	281	//
[284]	282	if( isset($GLOBALS['php_errormsg']) && CATCH_PHPERRMSG && !preg_match('/\|Deprecated\|/i', $GLOBALS['php_errormsg']) ) {
[2]	283	JpGraphError::RaiseL(25004,$GLOBALS['php_errormsg']);
	284	}
	285
	286	// Useful mathematical function
	287	function sign($a) {return $a >= 0 ? 1 : -1;}
	288
[284]	289	//
[2]	290	// Utility function to generate an image name based on the filename we
	291	// are running from and assuming we use auto detection of graphic format
	292	// (top level), i.e it is safe to call this function
	293	// from a script that uses JpGraph
[284]	294	//
[2]	295	function GenImgName() {
	296	// Determine what format we should use when we save the images
	297	$supported = imagetypes();
[284]	298	if( $supported & IMG_PNG ) $img_format="png";
[2]	299	elseif( $supported & IMG_GIF ) $img_format="gif";
	300	elseif( $supported & IMG_JPG ) $img_format="jpeg";
	301	elseif( $supported & IMG_WBMP ) $img_format="wbmp";
	302	elseif( $supported & IMG_XPM ) $img_format="xpm";
	303
	304
[284]	305	if( !isset($_SERVER['PHP_SELF']) ) {
	306	JpGraphError::RaiseL(25005);
	307	//(" Can't access PHP_SELF, PHP global variable. You can't run PHP from command line if you want to use the 'auto' naming of cache or image files.");
	308	}
[2]	309	$fname = basename($_SERVER['PHP_SELF']);
	310	if( !empty($_SERVER['QUERY_STRING']) ) {
[284]	311	$q = @$_SERVER['QUERY_STRING'];
	312	$fname .= '_'.preg_replace("/\W/", "_", $q).'.'.$img_format;
[2]	313	}
	314	else {
[284]	315	$fname = substr($fname,0,strlen($fname)-4).'.'.$img_format;
[2]	316	}
	317	return $fname;
	318	}
	319
	320	//===================================================
	321	// CLASS JpgTimer
	322	// Description: General timing utility class to handle
	323	// time measurement of generating graphs. Multiple
	324	// timers can be started.
	325	//===================================================
	326	class JpgTimer {
[284]	327	private $start, $idx;
	328
	329	function __construct() {
	330	$this->idx=0;
[2]	331	}
	332
	333	// Push a new timer start on stack
	334	function Push() {
[284]	335	list($ms,$s)=explode(" ",microtime());
	336	$this->start[$this->idx++]=floor($ms1000) + 1000$s;
[2]	337	}
	338
	339	// Pop the latest timer start and return the diff with the
	340	// current time
	341	function Pop() {
[284]	342	assert($this->idx>0);
	343	list($ms,$s)=explode(" ",microtime());
	344	$etime=floor($ms1000) + (1000$s);
	345	$this->idx--;
	346	return $etime-$this->start[$this->idx];
[2]	347	}
	348	} // Class
	349
	350	//===================================================
	351	// CLASS DateLocale
	352	// Description: Hold localized text used in dates
	353	//===================================================
	354	class DateLocale {
[284]	355
[2]	356	public $iLocale = 'C'; // environmental locale be used by default
	357	private $iDayAbb = null, $iShortDay = null, $iShortMonth = null, $iMonthName = null;
	358
[284]	359	function __construct() {
	360	settype($this->iDayAbb, 'array');
	361	settype($this->iShortDay, 'array');
	362	settype($this->iShortMonth, 'array');
	363	settype($this->iMonthName, 'array');
	364	$this->Set('C');
[2]	365	}
	366
	367	function Set($aLocale) {
[284]	368	if ( in_array($aLocale, array_keys($this->iDayAbb)) ){
	369	$this->iLocale = $aLocale;
	370	return TRUE; // already cached nothing else to do!
	371	}
[2]	372
[284]	373	$pLocale = setlocale(LC_TIME, 0); // get current locale for LC_TIME
[2]	374
[284]	375	if (is_array($aLocale)) {
	376	foreach ($aLocale as $loc) {
	377	$res = @setlocale(LC_TIME, $loc);
	378	if ( $res ) {
	379	$aLocale = $loc;
	380	break;
	381	}
	382	}
	383	}
	384	else {
	385	$res = @setlocale(LC_TIME, $aLocale);
	386	}
[2]	387
[284]	388	if ( ! $res ) {
	389	JpGraphError::RaiseL(25007,$aLocale);
	390	//("You are trying to use the locale ($aLocale) which your PHP installation does not support. Hint: Use '' to indicate the default locale for this geographic region.");
	391	return FALSE;
	392	}
[2]	393
[284]	394	$this->iLocale = $aLocale;
	395	for( $i = 0, $ofs = 0 - strftime('%w'); $i < 7; $i++, $ofs++ ) {
	396	$day = strftime('%a', strtotime("$ofs day"));
	397	$day[0] = strtoupper($day[0]);
	398	$this->iDayAbb[$aLocale][]= $day[0];
	399	$this->iShortDay[$aLocale][]= $day;
	400	}
[2]	401
[284]	402	for($i=1; $i<=12; ++$i) {
	403	list($short ,$full) = explode('\|', strftime("%b\|%B",strtotime("2001-$i-01")));
	404	$this->iShortMonth[$aLocale][] = ucfirst($short);
	405	$this->iMonthName [$aLocale][] = ucfirst($full);
	406	}
	407
	408	setlocale(LC_TIME, $pLocale);
	409
	410	return TRUE;
[2]	411	}
	412
	413
	414	function GetDayAbb() {
[284]	415	return $this->iDayAbb[$this->iLocale];
[2]	416	}
[284]	417
[2]	418	function GetShortDay() {
[284]	419	return $this->iShortDay[$this->iLocale];
[2]	420	}
	421
	422	function GetShortMonth() {
[284]	423	return $this->iShortMonth[$this->iLocale];
[2]	424	}
[284]	425
[2]	426	function GetShortMonthName($aNbr) {
[284]	427	return $this->iShortMonth[$this->iLocale][$aNbr];
[2]	428	}
	429
	430	function GetLongMonthName($aNbr) {
[284]	431	return $this->iMonthName[$this->iLocale][$aNbr];
[2]	432	}
	433
	434	function GetMonth() {
[284]	435	return $this->iMonthName[$this->iLocale];
[2]	436	}
	437	}
	438
[284]	439	// Global object handlers
[2]	440	$gDateLocale = new DateLocale();
	441	$gJpgDateLocale = new DateLocale();
	442
	443	//=======================================================
	444	// CLASS Footer
	445	// Description: Encapsulates the footer line in the Graph
	446	//=======================================================
	447	class Footer {
	448	public $iLeftMargin = 3, $iRightMargin = 3, $iBottomMargin = 3 ;
	449	public $left,$center,$right;
[284]	450	private $iTimer=null, $itimerpoststring='';
[2]	451
[284]	452	function __construct() {
	453	$this->left = new Text();
	454	$this->left->ParagraphAlign('left');
	455	$this->center = new Text();
	456	$this->center->ParagraphAlign('center');
	457	$this->right = new Text();
	458	$this->right->ParagraphAlign('right');
[2]	459	}
	460
[284]	461	function SetTimer($aTimer,$aTimerPostString='') {
	462	$this->iTimer = $aTimer;
	463	$this->itimerpoststring = $aTimerPostString;
	464	}
	465
[2]	466	function SetMargin($aLeft=3,$aRight=3,$aBottom=3) {
[284]	467	$this->iLeftMargin = $aLeft;
	468	$this->iRightMargin = $aRight;
	469	$this->iBottomMargin = $aBottom;
[2]	470	}
	471
	472	function Stroke($aImg) {
[284]	473	$y = $aImg->height - $this->iBottomMargin;
	474	$x = $this->iLeftMargin;
	475	$this->left->Align('left','bottom');
	476	$this->left->Stroke($aImg,$x,$y);
[2]	477
[284]	478	$x = ($aImg->width - $this->iLeftMargin - $this->iRightMargin)/2;
	479	$this->center->Align('center','bottom');
	480	$this->center->Stroke($aImg,$x,$y);
[2]	481
[284]	482	$x = $aImg->width - $this->iRightMargin;
	483	$this->right->Align('right','bottom');
	484	if( $this->iTimer != null ) {
	485	$this->right->Set( $this->right->t . sprintf('%.3f',$this->iTimer->Pop()/1000.0) . $this->itimerpoststring );
	486	}
	487	$this->right->Stroke($aImg,$x,$y);
[2]	488	}
	489	}
	490
	491
	492	//===================================================
	493	// CLASS Graph
	494	// Description: Main class to handle graphs
	495	//===================================================
	496	class Graph {
[284]	497	public $cache=null; // Cache object (singleton)
	498	public $img=null; // Img object (singleton)
	499	public $plots=array(); // Array of all plot object in the graph (for Y 1 axis)
	500	public $y2plots=array(); // Array of all plot object in the graph (for Y 2 axis)
[2]	501	public $ynplots=array();
[284]	502	public $xscale=null; // X Scale object (could be instance of LinearScale or LogScale
[2]	503	public $yscale=null,$y2scale=null, $ynscale=array();
[284]	504	public $iIcons = array(); // Array of Icons to add to
	505	public $cache_name; // File name to be used for the current graph in the cache directory
	506	public $xgrid=null; // X Grid object (linear or logarithmic)
	507	public $ygrid=null,$y2grid=null; //dito for Y
	508	public $doframe,$frame_color, $frame_weight; // Frame around graph
	509	public $boxed=false, $box_color='black', $box_weight=1; // Box around plot area
	510	public $doshadow=false,$shadow_width=4,$shadow_color='gray@0.5'; // Shadow for graph
	511	public $xaxis=null; // X-axis (instane of Axis class)
	512	public $yaxis=null, $y2axis=null, $ynaxis=array(); // Y axis (instance of Axis class)
	513	public $margin_color; // Margin color of graph
	514	public $plotarea_color=array(255,255,255); // Plot area color
	515	public $title,$subtitle,$subsubtitle; // Title and subtitle(s) text object
	516	public $axtype="linlin"; // Type of axis
	517	public $xtick_factor,$ytick_factor; // Factor to determine the maximum number of ticks depending on the plot width
	518	public $texts=null, $y2texts=null; // Text object to ge shown in the graph
[2]	519	public $lines=null, $y2lines=null;
	520	public $bands=null, $y2bands=null;
[284]	521	public $text_scale_off=0, $text_scale_abscenteroff=-1; // Text scale in fractions and for centering bars
	522	public $background_image='',$background_image_type=-1,$background_image_format="png";
[2]	523	public $background_image_bright=0,$background_image_contr=0,$background_image_sat=0;
	524	public $background_image_xpos=0,$background_image_ypos=0;
	525	public $image_bright=0, $image_contr=0, $image_sat=0;
	526	public $inline;
	527	public $showcsim=0,$csimcolor="red";//debug stuff, draw the csim boundaris on the image if <>0
[284]	528	public $grid_depth=DEPTH_BACK; // Draw grid under all plots as default
[2]	529	public $iAxisStyle = AXSTYLE_SIMPLE;
	530	public $iCSIMdisplay=false,$iHasStroked = false;
	531	public $footer;
	532	public $csimcachename = '', $csimcachetimeout = 0, $iCSIMImgAlt='';
	533	public $iDoClipping = false;
	534	public $y2orderback=true;
	535	public $tabtitle;
	536	public $bkg_gradtype=-1,$bkg_gradstyle=BGRAD_MARGIN;
	537	public $bkg_gradfrom='navy', $bkg_gradto='silver';
[284]	538	public $plot_gradtype=-1,$plot_gradstyle=BGRAD_MARGIN;
	539	public $plot_gradfrom='silver', $plot_gradto='navy';
	540
[2]	541	public $titlebackground = false;
	542	public $titlebackground_color = 'lightblue',
[284]	543	$titlebackground_style = 1,
	544	$titlebackground_framecolor,
	545	$titlebackground_framestyle,
	546	$titlebackground_frameweight,
	547	$titlebackground_bevelheight;
[2]	548	public $titlebkg_fillstyle=TITLEBKG_FILLSTYLE_SOLID;
	549	public $titlebkg_scolor1='black',$titlebkg_scolor2='white';
[284]	550	public $framebevel, $framebeveldepth;
	551	public $framebevelborder, $framebevelbordercolor;
	552	public $framebevelcolor1, $framebevelcolor2;
[2]	553	public $background_image_mix=100;
	554	public $background_cflag = '';
	555	public $background_cflag_type = BGIMG_FILLPLOT;
	556	public $background_cflag_mix = 100;
	557	public $iImgTrans=false,
[284]	558	$iImgTransHorizon = 100,$iImgTransSkewDist=150,
	559	$iImgTransDirection = 1, $iImgTransMinSize = true,
	560	$iImgTransFillColor='white',$iImgTransHighQ=false,
	561	$iImgTransBorder=false,$iImgTransHorizonPos=0.5;
[2]	562	public $legend;
[284]	563	public $graph_theme;
[2]	564	protected $iYAxisDeltaPos=50;
	565	protected $iIconDepth=DEPTH_BACK;
	566	protected $iAxisLblBgType = 0,
[284]	567	$iXAxisLblBgFillColor = 'lightgray', $iXAxisLblBgColor = 'black',
	568	$iYAxisLblBgFillColor = 'lightgray', $iYAxisLblBgColor = 'black';
[2]	569	protected $iTables=NULL;
	570
[284]	571	protected $isRunningClear = false;
	572	protected $inputValues;
	573	protected $isAfterSetScale = false;
[2]	574
[284]	575	// aWIdth Width in pixels of image
	576	// aHeight Height in pixels of image
	577	// aCachedName Name for image file in cache directory
	578	// aTimeOut Timeout in minutes for image in cache
	579	// aInline If true the image is streamed back in the call to Stroke()
	580	// If false the image is just created in the cache
	581	function __construct($aWidth=300,$aHeight=200,$aCachedName='',$aTimeout=0,$aInline=true) {
[2]	582
[284]	583	if( !is_numeric($aWidth) \|\| !is_numeric($aHeight) ) {
	584	JpGraphError::RaiseL(25008);//('Image width/height argument in Graph::Graph() must be numeric');
	585	}
[2]	586
[284]	587	// Initialize frame and margin
	588	$this->InitializeFrameAndMargin();
[2]	589
[284]	590	// Automatically generate the image file name based on the name of the script that
	591	// generates the graph
	592	if( $aCachedName == 'auto' ) {
	593	$aCachedName=GenImgName();
	594	}
[2]	595
[284]	596	// Should the image be streamed back to the browser or only to the cache?
	597	$this->inline=$aInline;
[2]	598
[284]	599	$this->img = new RotImage($aWidth,$aHeight);
	600	$this->cache = new ImgStreamCache();
[2]	601
[284]	602	// Window doesn't like '?' in the file name so replace it with an '_'
	603	$aCachedName = str_replace("?","_",$aCachedName);
	604	$this->SetupCache($aCachedName, $aTimeout);
[2]	605
[284]	606	$this->title = new Text();
	607	$this->title->ParagraphAlign('center');
	608	$this->title->SetFont(FF_DEFAULT,FS_NORMAL); //FF_FONT2, FS_BOLD
	609	$this->title->SetMargin(5);
	610	$this->title->SetAlign('center');
[2]	611
[284]	612	$this->subtitle = new Text();
	613	$this->subtitle->ParagraphAlign('center');
	614	$this->subtitle->SetMargin(3);
	615	$this->subtitle->SetAlign('center');
[2]	616
[284]	617	$this->subsubtitle = new Text();
	618	$this->subsubtitle->ParagraphAlign('center');
	619	$this->subsubtitle->SetMargin(3);
	620	$this->subsubtitle->SetAlign('center');
[2]	621
[284]	622	$this->legend = new Legend();
	623	$this->footer = new Footer();
	624
	625	// If the cached version exist just read it directly from the
	626	// cache, stream it back to browser and exit
	627	if( $aCachedName!='' && READ_CACHE && $aInline ) {
	628	if( $this->cache->GetAndStream($this->img,$aCachedName) ) {
	629	exit();
	630	}
	631	}
	632
	633	$this->SetTickDensity(); // Normal density
	634
	635	$this->tabtitle = new GraphTabTitle();
	636
	637	if (!$this->isRunningClear) {
	638	$this->inputValues = array();
	639	$this->inputValues['aWidth'] = $aWidth;
	640	$this->inputValues['aHeight'] = $aHeight;
	641	$this->inputValues['aCachedName'] = $aCachedName;
	642	$this->inputValues['aTimeout'] = $aTimeout;
	643	$this->inputValues['aInline'] = $aInline;
	644
	645	$theme_class = DEFAULT_THEME_CLASS;
	646	if (class_exists($theme_class)) {
	647	$this->graph_theme = new $theme_class();
	648	}
	649	}
[2]	650	}
[284]	651
	652	function InitializeFrameAndMargin() {
	653	$this->doframe=true;
	654	$this->frame_color='black';
	655	$this->frame_weight=1;
	656
	657	$this->titlebackground_framecolor = 'blue';
	658	$this->titlebackground_framestyle = 2;
	659	$this->titlebackground_frameweight = 1;
	660	$this->titlebackground_bevelheight = 3;
	661	$this->titlebkg_fillstyle=TITLEBKG_FILLSTYLE_SOLID;
	662	$this->titlebkg_scolor1='black';
	663	$this->titlebkg_scolor2='white';
	664	$this->framebevel = false;
	665	$this->framebeveldepth = 2;
	666	$this->framebevelborder = false;
	667	$this->framebevelbordercolor='black';
	668	$this->framebevelcolor1='white@0.4';
	669	$this->framebevelcolor2='black@0.4';
	670
	671	$this->margin_color = array(250,250,250);
	672	}
	673
	674	function SetupCache($aFilename,$aTimeout=60) {
	675	$this->cache_name = $aFilename;
	676	$this->cache->SetTimeOut($aTimeout);
	677	}
	678
[2]	679	// Enable final image perspective transformation
	680	function Set3DPerspective($aDir=1,$aHorizon=100,$aSkewDist=120,$aQuality=false,$aFillColor='#FFFFFF',$aBorder=false,$aMinSize=true,$aHorizonPos=0.5) {
[284]	681	$this->iImgTrans = true;
	682	$this->iImgTransHorizon = $aHorizon;
	683	$this->iImgTransSkewDist= $aSkewDist;
	684	$this->iImgTransDirection = $aDir;
	685	$this->iImgTransMinSize = $aMinSize;
	686	$this->iImgTransFillColor=$aFillColor;
	687	$this->iImgTransHighQ=$aQuality;
	688	$this->iImgTransBorder=$aBorder;
	689	$this->iImgTransHorizonPos=$aHorizonPos;
[2]	690	}
	691
	692	function SetUserFont($aNormal,$aBold='',$aItalic='',$aBoldIt='') {
[284]	693	$this->img->ttf->SetUserFont($aNormal,$aBold,$aItalic,$aBoldIt);
[2]	694	}
	695
	696	function SetUserFont1($aNormal,$aBold='',$aItalic='',$aBoldIt='') {
[284]	697	$this->img->ttf->SetUserFont1($aNormal,$aBold,$aItalic,$aBoldIt);
[2]	698	}
	699
	700	function SetUserFont2($aNormal,$aBold='',$aItalic='',$aBoldIt='') {
[284]	701	$this->img->ttf->SetUserFont2($aNormal,$aBold,$aItalic,$aBoldIt);
[2]	702	}
	703
	704	function SetUserFont3($aNormal,$aBold='',$aItalic='',$aBoldIt='') {
[284]	705	$this->img->ttf->SetUserFont3($aNormal,$aBold,$aItalic,$aBoldIt);
[2]	706	}
	707
	708	// Set Image format and optional quality
	709	function SetImgFormat($aFormat,$aQuality=75) {
[284]	710	$this->img->SetImgFormat($aFormat,$aQuality);
[2]	711	}
	712
	713	// Should the grid be in front or back of the plot?
	714	function SetGridDepth($aDepth) {
[284]	715	$this->grid_depth=$aDepth;
[2]	716	}
	717
	718	function SetIconDepth($aDepth) {
[284]	719	$this->iIconDepth=$aDepth;
[2]	720	}
[284]	721
[2]	722	// Specify graph angle 0-360 degrees.
	723	function SetAngle($aAngle) {
[284]	724	$this->img->SetAngle($aAngle);
[2]	725	}
	726
	727	function SetAlphaBlending($aFlg=true) {
[284]	728	$this->img->SetAlphaBlending($aFlg);
[2]	729	}
	730
	731	// Shortcut to image margin
	732	function SetMargin($lm,$rm,$tm,$bm) {
[284]	733	$this->img->SetMargin($lm,$rm,$tm,$bm);
[2]	734	}
	735
	736	function SetY2OrderBack($aBack=true) {
[284]	737	$this->y2orderback = $aBack;
[2]	738	}
	739
[284]	740	// Rotate the graph 90 degrees and set the margin
[2]	741	// when we have done a 90 degree rotation
	742	function Set90AndMargin($lm=0,$rm=0,$tm=0,$bm=0) {
[284]	743	$adj = ($this->img->height - $this->img->width)/2;
	744	$this->img->SetMargin($tm-$adj,$bm-$adj,$rm+$adj,$lm+$adj);
	745	$this->img->SetCenter(floor($this->img->width/2),floor($this->img->height/2));
	746	$this->SetAngle(90);
	747	if( empty($this->yaxis) \|\| empty($this->xaxis) ) {
	748	JpgraphError::RaiseL(25009);//('You must specify what scale to use with a call to Graph::SetScale()');
	749	}
	750	$this->xaxis->SetLabelAlign('right','center');
	751	$this->yaxis->SetLabelAlign('center','bottom');
	752	}
[267]	753
[2]	754	function SetClipping($aFlg=true) {
[284]	755	$this->iDoClipping = $aFlg ;
[2]	756	}
	757
	758	// Add a plot object to the graph
	759	function Add($aPlot) {
[284]	760	if( $aPlot == null ) {
	761	JpGraphError::RaiseL(25010);//("Graph::Add() You tried to add a null plot to the graph.");
	762	}
	763	if( is_array($aPlot) && count($aPlot) > 0 ) {
	764	$cl = $aPlot[0];
	765	}
	766	else {
	767	$cl = $aPlot;
	768	}
[2]	769
[284]	770	if( $cl instanceof Text ) $this->AddText($aPlot);
	771	elseif( class_exists('PlotLine',false) && ($cl instanceof PlotLine) ) $this->AddLine($aPlot);
	772	elseif( class_exists('PlotBand',false) && ($cl instanceof PlotBand) ) $this->AddBand($aPlot);
	773	elseif( class_exists('IconPlot',false) && ($cl instanceof IconPlot) ) $this->AddIcon($aPlot);
	774	elseif( class_exists('GTextTable',false) && ($cl instanceof GTextTable) ) $this->AddTable($aPlot);
	775	else {
	776	if( is_array($aPlot) ) {
	777	$this->plots = array_merge($this->plots,$aPlot);
	778	}
	779	else {
	780	$this->plots[] = $aPlot;
	781	}
	782	}
	783
	784	if ($this->graph_theme) {
	785	$this->graph_theme->SetupPlot($aPlot);
	786	}
[2]	787	}
	788
	789	function AddTable($aTable) {
[284]	790	if( is_array($aTable) ) {
	791	for($i=0; $i < count($aTable); ++$i ) {
	792	$this->iTables[]=$aTable[$i];
	793	}
	794	}
	795	else {
	796	$this->iTables[] = $aTable ;
	797	}
[2]	798	}
	799
	800	function AddIcon($aIcon) {
[284]	801	if( is_array($aIcon) ) {
	802	for($i=0; $i < count($aIcon); ++$i ) {
	803	$this->iIcons[]=$aIcon[$i];
	804	}
	805	}
	806	else {
	807	$this->iIcons[] = $aIcon ;
	808	}
[2]	809	}
	810
	811	// Add plot to second Y-scale
	812	function AddY2($aPlot) {
[284]	813	if( $aPlot == null ) {
	814	JpGraphError::RaiseL(25011);//("Graph::AddY2() You tried to add a null plot to the graph.");
	815	}
[2]	816
[284]	817	if( is_array($aPlot) && count($aPlot) > 0 ) {
	818	$cl = $aPlot[0];
	819	}
	820	else {
	821	$cl = $aPlot;
	822	}
[2]	823
[284]	824	if( $cl instanceof Text ) {
	825	$this->AddText($aPlot,true);
	826	}
	827	elseif( class_exists('PlotLine',false) && ($cl instanceof PlotLine) ) {
	828	$this->AddLine($aPlot,true);
	829	}
	830	elseif( class_exists('PlotBand',false) && ($cl instanceof PlotBand) ) {
	831	$this->AddBand($aPlot,true);
	832	}
	833	else {
	834	$this->y2plots[] = $aPlot;
	835	}
	836
	837	if ($this->graph_theme) {
	838	$this->graph_theme->SetupPlot($aPlot);
	839	}
[2]	840	}
[284]	841
[2]	842	// Add plot to the extra Y-axises
	843	function AddY($aN,$aPlot) {
	844
[284]	845	if( $aPlot == null ) {
	846	JpGraphError::RaiseL(25012);//("Graph::AddYN() You tried to add a null plot to the graph.");
	847	}
[2]	848
[284]	849	if( is_array($aPlot) && count($aPlot) > 0 ) {
	850	$cl = $aPlot[0];
	851	}
	852	else {
	853	$cl = $aPlot;
	854	}
[2]	855
[284]	856	if( ($cl instanceof Text) \|\|
	857	(class_exists('PlotLine',false) && ($cl instanceof PlotLine)) \|\|
	858	(class_exists('PlotBand',false) && ($cl instanceof PlotBand)) ) {
	859	JpGraph::RaiseL(25013);//('You can only add standard plots to multiple Y-axis');
	860	}
	861	else {
	862	$this->ynplots[$aN][] = $aPlot;
	863	}
	864
	865	if ($this->graph_theme) {
	866	$this->graph_theme->SetupPlot($aPlot);
	867	}
[2]	868	}
	869
	870	// Add text object to the graph
	871	function AddText($aTxt,$aToY2=false) {
[284]	872	if( $aTxt == null ) {
	873	JpGraphError::RaiseL(25014);//("Graph::AddText() You tried to add a null text to the graph.");
	874	}
	875	if( $aToY2 ) {
	876	if( is_array($aTxt) ) {
	877	for($i=0; $i < count($aTxt); ++$i ) {
	878	$this->y2texts[]=$aTxt[$i];
	879	}
	880	}
	881	else {
	882	$this->y2texts[] = $aTxt;
	883	}
	884	}
	885	else {
	886	if( is_array($aTxt) ) {
	887	for($i=0; $i < count($aTxt); ++$i ) {
	888	$this->texts[]=$aTxt[$i];
	889	}
	890	}
	891	else {
	892	$this->texts[] = $aTxt;
	893	}
	894	}
[2]	895	}
[284]	896
[2]	897	// Add a line object (class PlotLine) to the graph
	898	function AddLine($aLine,$aToY2=false) {
[284]	899	if( $aLine == null ) {
	900	JpGraphError::RaiseL(25015);//("Graph::AddLine() You tried to add a null line to the graph.");
	901	}
[2]	902
[284]	903	if( $aToY2 ) {
	904	if( is_array($aLine) ) {
	905	for($i=0; $i < count($aLine); ++$i ) {
	906	//$this->y2lines[]=$aLine[$i];
	907	$this->y2plots[]=$aLine[$i];
	908	}
	909	}
	910	else {
	911	//$this->y2lines[] = $aLine;
	912	$this->y2plots[]=$aLine;
	913	}
	914	}
	915	else {
	916	if( is_array($aLine) ) {
	917	for($i=0; $i<count($aLine); ++$i ) {
	918	//$this->lines[]=$aLine[$i];
	919	$this->plots[]=$aLine[$i];
	920	}
	921	}
	922	else {
	923	//$this->lines[] = $aLine;
	924	$this->plots[] = $aLine;
	925	}
	926	}
[2]	927	}
	928
	929	// Add vertical or horizontal band
	930	function AddBand($aBand,$aToY2=false) {
[284]	931	if( $aBand == null ) {
	932	JpGraphError::RaiseL(25016);//(" Graph::AddBand() You tried to add a null band to the graph.");
	933	}
[2]	934
[284]	935	if( $aToY2 ) {
	936	if( is_array($aBand) ) {
	937	for($i=0; $i < count($aBand); ++$i ) {
	938	$this->y2bands[] = $aBand[$i];
	939	}
	940	}
	941	else {
	942	$this->y2bands[] = $aBand;
	943	}
	944	}
	945	else {
	946	if( is_array($aBand) ) {
	947	for($i=0; $i < count($aBand); ++$i ) {
	948	$this->bands[] = $aBand[$i];
	949	}
	950	}
	951	else {
	952	$this->bands[] = $aBand;
	953	}
	954	}
[2]	955	}
	956
[284]	957	function SetPlotGradient($aFrom='navy',$aTo='silver',$aGradType=2) {
	958	$this->plot_gradtype=$aGradType;
	959	$this->plot_gradfrom = $aFrom;
	960	$this->plot_gradto = $aTo;
	961	}
	962
[2]	963	function SetBackgroundGradient($aFrom='navy',$aTo='silver',$aGradType=2,$aStyle=BGRAD_FRAME) {
[284]	964	$this->bkg_gradtype=$aGradType;
	965	$this->bkg_gradstyle=$aStyle;
	966	$this->bkg_gradfrom = $aFrom;
	967	$this->bkg_gradto = $aTo;
	968	}
	969
[2]	970	// Set a country flag in the background
	971	function SetBackgroundCFlag($aName,$aBgType=BGIMG_FILLPLOT,$aMix=100) {
[284]	972	$this->background_cflag = $aName;
	973	$this->background_cflag_type = $aBgType;
	974	$this->background_cflag_mix = $aMix;
[2]	975	}
	976
	977	// Alias for the above method
	978	function SetBackgroundCountryFlag($aName,$aBgType=BGIMG_FILLPLOT,$aMix=100) {
[284]	979	$this->background_cflag = $aName;
	980	$this->background_cflag_type = $aBgType;
	981	$this->background_cflag_mix = $aMix;
[2]	982	}
	983
	984
	985	// Specify a background image
[284]	986	function SetBackgroundImage($aFileName,$aBgType=BGIMG_FILLPLOT,$aImgFormat='auto') {
[2]	987
[284]	988	// Get extension to determine image type
	989	if( $aImgFormat == 'auto' ) {
	990	$e = explode('.',$aFileName);
	991	if( !$e ) {
	992	JpGraphError::RaiseL(25018,$aFileName);//('Incorrect file name for Graph::SetBackgroundImage() : '.$aFileName.' Must have a valid image extension (jpg,gif,png) when using autodetection of image type');
	993	}
[2]	994
[284]	995	$valid_formats = array('png', 'jpg', 'gif');
	996	$aImgFormat = strtolower($e[count($e)-1]);
	997	if ($aImgFormat == 'jpeg') {
	998	$aImgFormat = 'jpg';
	999	}
	1000	elseif (!in_array($aImgFormat, $valid_formats) ) {
	1001	JpGraphError::RaiseL(25019,$aImgFormat);//('Unknown file extension ($aImgFormat) in Graph::SetBackgroundImage() for filename: '.$aFileName);
	1002	}
	1003	}
[2]	1004
[284]	1005	$this->background_image = $aFileName;
	1006	$this->background_image_type=$aBgType;
	1007	$this->background_image_format=$aImgFormat;
[2]	1008	}
	1009
	1010	function SetBackgroundImageMix($aMix) {
[284]	1011	$this->background_image_mix = $aMix ;
[2]	1012	}
[284]	1013
[2]	1014	// Adjust background image position
	1015	function SetBackgroundImagePos($aXpos,$aYpos) {
[284]	1016	$this->background_image_xpos = $aXpos ;
	1017	$this->background_image_ypos = $aYpos ;
[2]	1018	}
[284]	1019
[2]	1020	// Specify axis style (boxed or single)
	1021	function SetAxisStyle($aStyle) {
	1022	$this->iAxisStyle = $aStyle ;
	1023	}
[284]	1024
[2]	1025	// Set a frame around the plot area
	1026	function SetBox($aDrawPlotFrame=true,$aPlotFrameColor=array(0,0,0),$aPlotFrameWeight=1) {
[284]	1027	$this->boxed = $aDrawPlotFrame;
	1028	$this->box_weight = $aPlotFrameWeight;
	1029	$this->box_color = $aPlotFrameColor;
[2]	1030	}
[284]	1031
[2]	1032	// Specify color for the plotarea (not the margins)
	1033	function SetColor($aColor) {
[284]	1034	$this->plotarea_color=$aColor;
[2]	1035	}
[284]	1036
[2]	1037	// Specify color for the margins (all areas outside the plotarea)
	1038	function SetMarginColor($aColor) {
[284]	1039	$this->margin_color=$aColor;
[2]	1040	}
[284]	1041
[2]	1042	// Set a frame around the entire image
	1043	function SetFrame($aDrawImgFrame=true,$aImgFrameColor=array(0,0,0),$aImgFrameWeight=1) {
[284]	1044	$this->doframe = $aDrawImgFrame;
	1045	$this->frame_color = $aImgFrameColor;
	1046	$this->frame_weight = $aImgFrameWeight;
[2]	1047	}
	1048
	1049	function SetFrameBevel($aDepth=3,$aBorder=false,$aBorderColor='black',$aColor1='white@0.4',$aColor2='darkgray@0.4',$aFlg=true) {
[284]	1050	$this->framebevel = $aFlg ;
	1051	$this->framebeveldepth = $aDepth ;
	1052	$this->framebevelborder = $aBorder ;
	1053	$this->framebevelbordercolor = $aBorderColor ;
	1054	$this->framebevelcolor1 = $aColor1 ;
	1055	$this->framebevelcolor2 = $aColor2 ;
[2]	1056
[284]	1057	$this->doshadow = false ;
[2]	1058	}
	1059
	1060	// Set the shadow around the whole image
[284]	1061	function SetShadow($aShowShadow=true,$aShadowWidth=5,$aShadowColor='darkgray') {
	1062	$this->doshadow = $aShowShadow;
	1063	$this->shadow_color = $aShadowColor;
	1064	$this->shadow_width = $aShadowWidth;
	1065	$this->footer->iBottomMargin += $aShadowWidth;
	1066	$this->footer->iRightMargin += $aShadowWidth;
[2]	1067	}
	1068
	1069	// Specify x,y scale. Note that if you manually specify the scale
	1070	// you must also specify the tick distance with a call to Ticks::Set()
	1071	function SetScale($aAxisType,$aYMin=1,$aYMax=1,$aXMin=1,$aXMax=1) {
[284]	1072	$this->axtype = $aAxisType;
[2]	1073
[284]	1074	if( $aYMax < $aYMin \|\| $aXMax < $aXMin ) {
	1075	JpGraphError::RaiseL(25020);//('Graph::SetScale(): Specified Max value must be larger than the specified Min value.');
	1076	}
[2]	1077
[284]	1078	$yt=substr($aAxisType,-3,3);
	1079	if( $yt == 'lin' ) {
	1080	$this->yscale = new LinearScale($aYMin,$aYMax);
	1081	}
	1082	elseif( $yt == 'int' ) {
	1083	$this->yscale = new LinearScale($aYMin,$aYMax);
	1084	$this->yscale->SetIntScale();
	1085	}
	1086	elseif( $yt == 'log' ) {
	1087	$this->yscale = new LogScale($aYMin,$aYMax);
	1088	}
	1089	else {
	1090	JpGraphError::RaiseL(25021,$aAxisType);//("Unknown scale specification for Y-scale. ($aAxisType)");
	1091	}
[2]	1092
[284]	1093	$xt=substr($aAxisType,0,3);
	1094	if( $xt == 'lin' \|\| $xt == 'tex' ) {
	1095	$this->xscale = new LinearScale($aXMin,$aXMax,'x');
	1096	$this->xscale->textscale = ($xt == 'tex');
	1097	}
	1098	elseif( $xt == 'int' ) {
	1099	$this->xscale = new LinearScale($aXMin,$aXMax,'x');
	1100	$this->xscale->SetIntScale();
	1101	}
	1102	elseif( $xt == 'dat' ) {
	1103	$this->xscale = new DateScale($aXMin,$aXMax,'x');
	1104	}
	1105	elseif( $xt == 'log' ) {
	1106	$this->xscale = new LogScale($aXMin,$aXMax,'x');
	1107	}
	1108	else {
	1109	JpGraphError::RaiseL(25022,$aAxisType);//(" Unknown scale specification for X-scale. ($aAxisType)");
	1110	}
	1111
	1112	$this->xaxis = new Axis($this->img,$this->xscale);
	1113	$this->yaxis = new Axis($this->img,$this->yscale);
	1114	$this->xgrid = new Grid($this->xaxis);
	1115	$this->ygrid = new Grid($this->yaxis);
	1116	$this->ygrid->Show();
	1117
	1118
	1119	if (!$this->isRunningClear) {
	1120	$this->inputValues['aAxisType'] = $aAxisType;
	1121	$this->inputValues['aYMin'] = $aYMin;
	1122	$this->inputValues['aYMax'] = $aYMax;
	1123	$this->inputValues['aXMin'] = $aXMin;
	1124	$this->inputValues['aXMax'] = $aXMax;
	1125
	1126	if ($this->graph_theme) {
	1127	$this->graph_theme->ApplyGraph($this);
	1128	}
	1129	}
	1130
	1131	$this->isAfterSetScale = true;
[2]	1132	}
[284]	1133
[2]	1134	// Specify secondary Y scale
[284]	1135	function SetY2Scale($aAxisType='lin',$aY2Min=1,$aY2Max=1) {
	1136	if( $aAxisType == 'lin' ) {
	1137	$this->y2scale = new LinearScale($aY2Min,$aY2Max);
	1138	}
	1139	elseif( $aAxisType == 'int' ) {
	1140	$this->y2scale = new LinearScale($aY2Min,$aY2Max);
	1141	$this->y2scale->SetIntScale();
	1142	}
	1143	elseif( $aAxisType == 'log' ) {
	1144	$this->y2scale = new LogScale($aY2Min,$aY2Max);
	1145	}
	1146	else {
	1147	JpGraphError::RaiseL(25023,$aAxisType);//("JpGraph: Unsupported Y2 axis type: $aAxisType\nMust be one of (lin,log,int)");
	1148	}
	1149
	1150	$this->y2axis = new Axis($this->img,$this->y2scale);
	1151	$this->y2axis->scale->ticks->SetDirection(SIDE_LEFT);
	1152	$this->y2axis->SetLabelSide(SIDE_RIGHT);
	1153	$this->y2axis->SetPos('max');
	1154	$this->y2axis->SetTitleSide(SIDE_RIGHT);
	1155
	1156	// Deafult position is the max x-value
	1157	$this->y2grid = new Grid($this->y2axis);
	1158
	1159	if ($this->graph_theme) {
	1160	$this->graph_theme->ApplyGraph($this);
	1161	}
[2]	1162	}
	1163
	1164	// Set the delta position (in pixels) between the multiple Y-axis
	1165	function SetYDeltaDist($aDist) {
[284]	1166	$this->iYAxisDeltaPos = $aDist;
[2]	1167	}
	1168
	1169	// Specify secondary Y scale
	1170	function SetYScale($aN,$aAxisType="lin",$aYMin=1,$aYMax=1) {
	1171
[284]	1172	if( $aAxisType == 'lin' ) {
	1173	$this->ynscale[$aN] = new LinearScale($aYMin,$aYMax);
	1174	}
	1175	elseif( $aAxisType == 'int' ) {
	1176	$this->ynscale[$aN] = new LinearScale($aYMin,$aYMax);
	1177	$this->ynscale[$aN]->SetIntScale();
	1178	}
	1179	elseif( $aAxisType == 'log' ) {
	1180	$this->ynscale[$aN] = new LogScale($aYMin,$aYMax);
	1181	}
	1182	else {
	1183	JpGraphError::RaiseL(25024,$aAxisType);//("JpGraph: Unsupported Y axis type: $aAxisType\nMust be one of (lin,log,int)");
	1184	}
	1185
	1186	$this->ynaxis[$aN] = new Axis($this->img,$this->ynscale[$aN]);
	1187	$this->ynaxis[$aN]->scale->ticks->SetDirection(SIDE_LEFT);
	1188	$this->ynaxis[$aN]->SetLabelSide(SIDE_RIGHT);
	1189
	1190	if ($this->graph_theme) {
	1191	$this->graph_theme->ApplyGraph($this);
	1192	}
[2]	1193	}
	1194
	1195	// Specify density of ticks when autoscaling 'normal', 'dense', 'sparse', 'verysparse'
[284]	1196	// The dividing factor have been determined heuristically according to my aesthetic
[2]	1197	// sense (or lack off) y.m.m.v !
	1198	function SetTickDensity($aYDensity=TICKD_NORMAL,$aXDensity=TICKD_NORMAL) {
[284]	1199	$this->xtick_factor=30;
	1200	$this->ytick_factor=25;
	1201	switch( $aYDensity ) {
	1202	case TICKD_DENSE:
	1203	$this->ytick_factor=12;
	1204	break;
	1205	case TICKD_NORMAL:
	1206	$this->ytick_factor=25;
	1207	break;
	1208	case TICKD_SPARSE:
	1209	$this->ytick_factor=40;
	1210	break;
	1211	case TICKD_VERYSPARSE:
	1212	$this->ytick_factor=100;
	1213	break;
	1214	default:
	1215	JpGraphError::RaiseL(25025,$densy);//("JpGraph: Unsupported Tick density: $densy");
	1216	}
	1217	switch( $aXDensity ) {
	1218	case TICKD_DENSE:
	1219	$this->xtick_factor=15;
	1220	break;
	1221	case TICKD_NORMAL:
	1222	$this->xtick_factor=30;
	1223	break;
	1224	case TICKD_SPARSE:
	1225	$this->xtick_factor=45;
	1226	break;
	1227	case TICKD_VERYSPARSE:
	1228	$this->xtick_factor=60;
	1229	break;
	1230	default:
	1231	JpGraphError::RaiseL(25025,$densx);//("JpGraph: Unsupported Tick density: $densx");
	1232	}
[2]	1233	}
	1234
[284]	1235
	1236	// Get a string of all image map areas
[2]	1237	function GetCSIMareas() {
[284]	1238	if( !$this->iHasStroked ) {
	1239	$this->Stroke(_CSIM_SPECIALFILE);
	1240	}
[2]	1241
[284]	1242	$csim = $this->title->GetCSIMAreas();
	1243	$csim .= $this->subtitle->GetCSIMAreas();
	1244	$csim .= $this->subsubtitle->GetCSIMAreas();
	1245	$csim .= $this->legend->GetCSIMAreas();
[2]	1246
[284]	1247	if( $this->y2axis != NULL ) {
	1248	$csim .= $this->y2axis->title->GetCSIMAreas();
	1249	}
[2]	1250
[284]	1251	if( $this->texts != null ) {
	1252	$n = count($this->texts);
	1253	for($i=0; $i < $n; ++$i ) {
	1254	$csim .= $this->texts[$i]->GetCSIMAreas();
	1255	}
	1256	}
[2]	1257
[284]	1258	if( $this->y2texts != null && $this->y2scale != null ) {
	1259	$n = count($this->y2texts);
	1260	for($i=0; $i < $n; ++$i ) {
	1261	$csim .= $this->y2texts[$i]->GetCSIMAreas();
	1262	}
	1263	}
[2]	1264
[284]	1265	if( $this->yaxis != null && $this->xaxis != null ) {
	1266	$csim .= $this->yaxis->title->GetCSIMAreas();
	1267	$csim .= $this->xaxis->title->GetCSIMAreas();
	1268	}
[2]	1269
[284]	1270	$n = count($this->plots);
	1271	for( $i=0; $i < $n; ++$i ) {
	1272	$csim .= $this->plots[$i]->GetCSIMareas();
	1273	}
[2]	1274
[284]	1275	$n = count($this->y2plots);
	1276	for( $i=0; $i < $n; ++$i ) {
	1277	$csim .= $this->y2plots[$i]->GetCSIMareas();
	1278	}
[2]	1279
[284]	1280	$n = count($this->ynaxis);
	1281	for( $i=0; $i < $n; ++$i ) {
	1282	$m = count($this->ynplots[$i]);
	1283	for($j=0; $j < $m; ++$j ) {
	1284	$csim .= $this->ynplots[$i][$j]->GetCSIMareas();
	1285	}
	1286	}
[2]	1287
[284]	1288	if($this->iTables != null) {
	1289	$n = count($this->iTables);
	1290	for ($i = 0; $i < $n; ++$i) {
	1291	$csim .= $this->iTables[$i]->GetCSIMareas();
	1292	}
	1293	}
[2]	1294
[284]	1295	return $csim;
[2]	1296	}
[284]	1297
[2]	1298	// Get a complete <MAP>..</MAP> tag for the final image map
	1299	function GetHTMLImageMap($aMapName) {
[284]	1300	$im = "<map name=\"$aMapName\" id=\"$aMapName\" >\n";
	1301	$im .= $this->GetCSIMareas();
	1302	$im .= "</map>";
	1303	return $im;
[2]	1304	}
	1305
	1306	function CheckCSIMCache($aCacheName,$aTimeOut=60) {
[284]	1307	global $_SERVER;
[2]	1308
[284]	1309	if( $aCacheName=='auto' ) {
	1310	$aCacheName=basename($_SERVER['PHP_SELF']);
	1311	}
[2]	1312
[284]	1313	$urlarg = $this->GetURLArguments();
	1314	$this->csimcachename = CSIMCACHE_DIR.$aCacheName.$urlarg;
	1315	$this->csimcachetimeout = $aTimeOut;
[2]	1316
[284]	1317	// First determine if we need to check for a cached version
	1318	// This differs from the standard cache in the sense that the
	1319	// image and CSIM map HTML file is written relative to the directory
	1320	// the script executes in and not the specified cache directory.
	1321	// The reason for this is that the cache directory is not necessarily
	1322	// accessible from the HTTP server.
	1323	if( $this->csimcachename != '' ) {
	1324	$dir = dirname($this->csimcachename);
	1325	$base = basename($this->csimcachename);
	1326	$base = strtok($base,'.');
	1327	$suffix = strtok('.');
	1328	$basecsim = $dir.'/'.$base.'?'.$urlarg.'_csim_.html';
	1329	$baseimg = $dir.'/'.$base.'?'.$urlarg.'.'.$this->img->img_format;
[2]	1330
[284]	1331	$timedout=false;
	1332	// Does it exist at all ?
	1333
	1334	if( file_exists($basecsim) && file_exists($baseimg) ) {
	1335	// Check that it hasn't timed out
	1336	$diff=time()-filemtime($basecsim);
	1337	if( $this->csimcachetimeout>0 && ($diff > $this->csimcachetimeout*60) ) {
	1338	$timedout=true;
	1339	@unlink($basecsim);
	1340	@unlink($baseimg);
	1341	}
	1342	else {
	1343	if ($fh = @fopen($basecsim, "r")) {
	1344	fpassthru($fh);
	1345	return true;
	1346	}
	1347	else {
	1348	JpGraphError::RaiseL(25027,$basecsim);//(" Can't open cached CSIM \"$basecsim\" for reading.");
	1349	}
	1350	}
	1351	}
	1352	}
	1353	return false;
[2]	1354	}
	1355
	1356	// Build the argument string to be used with the csim images
[284]	1357	static function GetURLArguments($aAddRecursiveBlocker=false) {
[2]	1358
[284]	1359	if( $aAddRecursiveBlocker ) {
	1360	// This is a JPGRAPH internal defined that prevents
	1361	// us from recursively coming here again
	1362	$urlarg = _CSIM_DISPLAY.'=1';
	1363	}
[2]	1364
[284]	1365	// Now reconstruct any user URL argument
	1366	reset($_GET);
	1367	foreach ($_GET as $key => $value) {
	1368	if( is_array($value) ) {
	1369	foreach ( $value as $k => $v ) {
	1370	$urlarg .= '&'.$key.'%5B'.$k.'%5D='.urlencode($v);
	1371	}
	1372	}
	1373	else {
	1374	$urlarg .= '&'.$key.'='.urlencode($value);
	1375	}
	1376	}
[2]	1377
[284]	1378	// It's not ideal to convert POST argument to GET arguments
	1379	// but there is little else we can do. One idea for the
	1380	// future might be recreate the POST header in case.
	1381	reset($_POST);
	1382	foreach ($_POST as $key => $value) {
	1383	if( is_array($value) ) {
	1384	foreach ( $value as $k => $v ) {
	1385	$urlarg .= '&'.$key.'%5B'.$k.'%5D='.urlencode($v);
	1386	}
	1387	}
	1388	else {
	1389	$urlarg .= '&'.$key.'='.urlencode($value);
	1390	}
	1391	}
	1392
	1393	return $urlarg;
[2]	1394	}
	1395
	1396	function SetCSIMImgAlt($aAlt) {
[284]	1397	$this->iCSIMImgAlt = $aAlt;
[2]	1398	}
	1399
	1400	function StrokeCSIM($aScriptName='auto',$aCSIMName='',$aBorder=0) {
[284]	1401	if( $aCSIMName=='' ) {
	1402	// create a random map name
	1403	srand ((double) microtime() * 1000000);
	1404	$r = rand(0,100000);
	1405	$aCSIMName='__mapname'.$r.'__';
	1406	}
[2]	1407
[284]	1408	if( $aScriptName=='auto' ) {
	1409	$aScriptName=basename($_SERVER['PHP_SELF']);
	1410	}
[2]	1411
[284]	1412	$urlarg = $this->GetURLArguments(true);
[2]	1413
[284]	1414	if( empty($_GET[_CSIM_DISPLAY]) ) {
	1415	// First determine if we need to check for a cached version
	1416	// This differs from the standard cache in the sense that the
	1417	// image and CSIM map HTML file is written relative to the directory
	1418	// the script executes in and not the specified cache directory.
	1419	// The reason for this is that the cache directory is not necessarily
	1420	// accessible from the HTTP server.
	1421	if( $this->csimcachename != '' ) {
	1422	$dir = dirname($this->csimcachename);
	1423	$base = basename($this->csimcachename);
	1424	$base = strtok($base,'.');
	1425	$suffix = strtok('.');
	1426	$basecsim = $dir.'/'.$base.'?'.$urlarg.'_csim_.html';
	1427	$baseimg = $base.'?'.$urlarg.'.'.$this->img->img_format;
[2]	1428
[284]	1429	// Check that apache can write to directory specified
[2]	1430
[284]	1431	if( file_exists($dir) && !is_writeable($dir) ) {
	1432	JpgraphError::RaiseL(25028,$dir);//('Apache/PHP does not have permission to write to the CSIM cache directory ('.$dir.'). Check permissions.');
	1433	}
[2]	1434
[284]	1435	// Make sure directory exists
	1436	$this->cache->MakeDirs($dir);
[2]	1437
[284]	1438	// Write the image file
	1439	$this->Stroke(CSIMCACHE_DIR.$baseimg);
[2]	1440
[284]	1441	// Construct wrapper HTML and write to file and send it back to browser
[2]	1442
[284]	1443	// In the src URL we must replace the '?' with its encoding to prevent the arguments
	1444	// to be converted to real arguments.
	1445	$tmp = str_replace('?','%3f',$baseimg);
	1446	$htmlwrap = $this->GetHTMLImageMap($aCSIMName)."\n".
	1447	'<img src="'.CSIMCACHE_HTTP_DIR.$tmp.'" ismap="ismap" usemap="#'.$aCSIMName.' width="'.$this->img->width.'" height="'.$this->img->height."\" alt=\"".$this->iCSIMImgAlt."\" />\n";
[2]	1448
[284]	1449	if($fh = @fopen($basecsim,'w') ) {
	1450	fwrite($fh,$htmlwrap);
	1451	fclose($fh);
	1452	echo $htmlwrap;
	1453	}
	1454	else {
	1455	JpGraphError::RaiseL(25029,$basecsim);//(" Can't write CSIM \"$basecsim\" for writing. Check free space and permissions.");
	1456	}
	1457	}
	1458	else {
	1459
	1460	if( $aScriptName=='' ) {
	1461	JpGraphError::RaiseL(25030);//('Missing script name in call to StrokeCSIM(). You must specify the name of the actual image script as the first parameter to StrokeCSIM().');
	1462	}
	1463	echo $this->GetHTMLImageMap($aCSIMName) . $this->GetCSIMImgHTML($aCSIMName, $aScriptName, $aBorder);
	1464	}
	1465	}
	1466	else {
	1467	$this->Stroke();
	1468	}
[2]	1469	}
	1470
[284]	1471	function StrokeCSIMImage() {
	1472	if( @$_GET[_CSIM_DISPLAY] == 1 ) {
	1473	$this->Stroke();
	1474	}
	1475	}
	1476
	1477	function GetCSIMImgHTML($aCSIMName, $aScriptName='auto', $aBorder=0 ) {
	1478	if( $aScriptName=='auto' ) {
	1479	$aScriptName=basename($_SERVER['PHP_SELF']);
	1480	}
	1481	$urlarg = $this->GetURLArguments(true);
	1482	return "<img src=\"".$aScriptName.'?'.$urlarg."\" ismap=\"ismap\" usemap=\"#".$aCSIMName.'" height="'.$this->img->height."\" alt=\"".$this->iCSIMImgAlt."\" />\n";
	1483	}
	1484
[2]	1485	function GetTextsYMinMax($aY2=false) {
[284]	1486	if( $aY2 ) {
	1487	$txts = $this->y2texts;
	1488	}
	1489	else {
	1490	$txts = $this->texts;
	1491	}
	1492	$n = is_array($txts) ? count($txts) : 0;
	1493	$min=null;
	1494	$max=null;
	1495	for( $i=0; $i < $n; ++$i ) {
	1496	if( $txts[$i]->iScalePosY !== null && $txts[$i]->iScalePosX !== null ) {
	1497	if( $min === null ) {
	1498	$min = $max = $txts[$i]->iScalePosY ;
	1499	}
	1500	else {
	1501	$min = min($min,$txts[$i]->iScalePosY);
	1502	$max = max($max,$txts[$i]->iScalePosY);
	1503	}
	1504	}
	1505	}
	1506	if( $min !== null ) {
	1507	return array($min,$max);
	1508	}
	1509	else {
	1510	return null;
	1511	}
[2]	1512	}
	1513
	1514	function GetTextsXMinMax($aY2=false) {
[284]	1515	if( $aY2 ) {
	1516	$txts = $this->y2texts;
	1517	}
	1518	else {
	1519	$txts = $this->texts;
	1520	}
	1521	$n = is_array($txts) ? count($txts) : 0;
	1522	$min=null;
	1523	$max=null;
	1524	for( $i=0; $i < $n; ++$i ) {
	1525	if( $txts[$i]->iScalePosY !== null && $txts[$i]->iScalePosX !== null ) {
	1526	if( $min === null ) {
	1527	$min = $max = $txts[$i]->iScalePosX ;
	1528	}
	1529	else {
	1530	$min = min($min,$txts[$i]->iScalePosX);
	1531	$max = max($max,$txts[$i]->iScalePosX);
	1532	}
	1533	}
	1534	}
	1535	if( $min !== null ) {
	1536	return array($min,$max);
	1537	}
	1538	else {
	1539	return null;
	1540	}
[2]	1541	}
	1542
	1543	function GetXMinMax() {
	1544
[284]	1545	list($min,$ymin) = $this->plots[0]->Min();
	1546	list($max,$ymax) = $this->plots[0]->Max();
[2]	1547
[284]	1548	$i=0;
	1549	// Some plots, e.g. PlotLine should not affect the scale
	1550	// and will return (null,null). We should ignore those
	1551	// values.
	1552	while( ($min===null \|\| $max === null) && ($i < count($this->plots)-1) ) {
	1553	++$i;
	1554	list($min,$ymin) = $this->plots[$i]->Min();
	1555	list($max,$ymax) = $this->plots[$i]->Max();
	1556	}
	1557
	1558	foreach( $this->plots as $p ) {
	1559	list($xmin,$ymin) = $p->Min();
	1560	list($xmax,$ymax) = $p->Max();
	1561
	1562	if( $xmin !== null && $xmax !== null ) {
	1563	$min = Min($xmin,$min);
	1564	$max = Max($xmax,$max);
	1565	}
	1566	}
	1567
	1568	if( $this->y2axis != null ) {
	1569	foreach( $this->y2plots as $p ) {
	1570	list($xmin,$ymin) = $p->Min();
	1571	list($xmax,$ymax) = $p->Max();
	1572	if( $xmin !== null && $xmax !== null ) {
	1573	$min = Min($xmin, $min);
	1574	$max = Max($xmax, $max);
	1575	}
	1576	}
	1577	}
	1578
	1579	$n = count($this->ynaxis);
	1580	for( $i=0; $i < $n; ++$i ) {
	1581	if( $this->ynaxis[$i] != null) {
	1582	foreach( $this->ynplots[$i] as $p ) {
	1583	list($xmin,$ymin) = $p->Min();
	1584	list($xmax,$ymax) = $p->Max();
	1585	if( $xmin !== null && $xmax !== null ) {
	1586	$min = Min($xmin, $min);
	1587	$max = Max($xmax, $max);
	1588	}
	1589	}
	1590	}
	1591	}
	1592	return array($min,$max);
[2]	1593	}
	1594
	1595	function AdjustMarginsForTitles() {
[284]	1596	$totrequired =
	1597	($this->title->t != ''
	1598	? $this->title->GetTextHeight($this->img) + $this->title->margin + 5 * SUPERSAMPLING_SCALE
	1599	: 0 ) +
	1600	($this->subtitle->t != ''
	1601	? $this->subtitle->GetTextHeight($this->img) + $this->subtitle->margin + 5 * SUPERSAMPLING_SCALE
	1602	: 0 ) +
	1603	($this->subsubtitle->t != ''
	1604	? $this->subsubtitle->GetTextHeight($this->img) + $this->subsubtitle->margin + 5 * SUPERSAMPLING_SCALE
	1605	: 0 ) ;
[2]	1606
[284]	1607	$btotrequired = 0;
	1608	if($this->xaxis != null && !$this->xaxis->hide && !$this->xaxis->hide_labels ) {
	1609	// Minimum bottom margin
	1610	if( $this->xaxis->title->t != '' ) {
	1611	if( $this->img->a == 90 ) {
	1612	$btotrequired = $this->yaxis->title->GetTextHeight($this->img) + 7 ;
	1613	}
	1614	else {
	1615	$btotrequired = $this->xaxis->title->GetTextHeight($this->img) + 7 ;
	1616	}
	1617	}
	1618	else {
	1619	$btotrequired = 0;
	1620	}
[2]	1621
[284]	1622	if( $this->img->a == 90 ) {
	1623	$this->img->SetFont($this->yaxis->font_family,$this->yaxis->font_style,
	1624	$this->yaxis->font_size);
	1625	$lh = $this->img->GetTextHeight('Mg',$this->yaxis->label_angle);
	1626	}
	1627	else {
	1628	$this->img->SetFont($this->xaxis->font_family,$this->xaxis->font_style,
	1629	$this->xaxis->font_size);
	1630	$lh = $this->img->GetTextHeight('Mg',$this->xaxis->label_angle);
	1631	}
	1632
	1633	$btotrequired += $lh + 6;
	1634	}
	1635
	1636	if( $this->img->a == 90 ) {
	1637	// DO Nothing. It gets too messy to do this properly for 90 deg...
	1638	}
	1639	else{
	1640	// need more top margin
	1641	if( $this->img->top_margin < $totrequired ) {
	1642	$this->SetMargin(
	1643	$this->img->raw_left_margin,
	1644	$this->img->raw_right_margin,
	1645	$totrequired / SUPERSAMPLING_SCALE,
	1646	$this->img->raw_bottom_margin
	1647	);
	1648	}
	1649
	1650	// need more bottom margin
	1651	if( $this->img->bottom_margin < $btotrequired ) {
	1652	$this->SetMargin(
	1653	$this->img->raw_left_margin,
	1654	$this->img->raw_right_margin,
	1655	$this->img->raw_top_margin,
	1656	$btotrequired / SUPERSAMPLING_SCALE
	1657	);
	1658	}
	1659	}
[2]	1660	}
	1661
[284]	1662	function StrokeStore($aStrokeFileName) {
	1663	// Get the handler to prevent the library from sending the
	1664	// image to the browser
	1665	$ih = $this->Stroke(_IMG_HANDLER);
[2]	1666
[284]	1667	// Stroke it to a file
	1668	$this->img->Stream($aStrokeFileName);
[2]	1669
[284]	1670	// Send it back to browser
	1671	$this->img->Headers();
	1672	$this->img->Stream();
	1673	}
[2]	1674
[284]	1675	function doAutoscaleXAxis() {
	1676	//Check if we should autoscale x-axis
	1677	if( !$this->xscale->IsSpecified() ) {
	1678	if( substr($this->axtype,0,4) == "text" ) {
	1679	$max=0;
	1680	$n = count($this->plots);
	1681	for($i=0; $i < $n; ++$i ) {
	1682	$p = $this->plots[$i];
	1683	// We need some unfortunate sub class knowledge here in order
	1684	// to increase number of data points in case it is a line plot
	1685	// which has the barcenter set. If not it could mean that the
	1686	// last point of the data is outside the scale since the barcenter
	1687	// settings means that we will shift the entire plot half a tick step
	1688	// to the right in oder to align with the center of the bars.
	1689	if( class_exists('BarPlot',false) ) {
	1690	$cl = strtolower(get_class($p));
	1691	if( (class_exists('BarPlot',false) && ($p instanceof BarPlot)) \|\| empty($p->barcenter) ) {
	1692	$max=max($max,$p->numpoints-1);
	1693	}
	1694	else {
	1695	$max=max($max,$p->numpoints);
	1696	}
	1697	}
	1698	else {
	1699	if( empty($p->barcenter) ) {
	1700	$max=max($max,$p->numpoints-1);
	1701	}
	1702	else {
	1703	$max=max($max,$p->numpoints);
	1704	}
	1705	}
	1706	}
	1707	$min=0;
	1708	if( $this->y2axis != null ) {
	1709	foreach( $this->y2plots as $p ) {
	1710	$max=max($max,$p->numpoints-1);
	1711	}
	1712	}
	1713	$n = count($this->ynaxis);
	1714	for( $i=0; $i < $n; ++$i ) {
	1715	if( $this->ynaxis[$i] != null) {
	1716	foreach( $this->ynplots[$i] as $p ) {
	1717	$max=max($max,$p->numpoints-1);
	1718	}
	1719	}
	1720	}
[2]	1721
[284]	1722	$this->xscale->Update($this->img,$min,$max);
	1723	$this->xscale->ticks->Set($this->xaxis->tick_step,1);
	1724	$this->xscale->ticks->SupressMinorTickMarks();
	1725	}
	1726	else {
	1727	list($min,$max) = $this->GetXMinMax();
[2]	1728
[284]	1729	$lres = $this->GetLinesXMinMax($this->lines);
	1730	if( $lres ) {
	1731	list($linmin,$linmax) = $lres ;
	1732	$min = min($min,$linmin);
	1733	$max = max($max,$linmax);
	1734	}
[2]	1735
[284]	1736	$lres = $this->GetLinesXMinMax($this->y2lines);
	1737	if( $lres ) {
	1738	list($linmin,$linmax) = $lres ;
	1739	$min = min($min,$linmin);
	1740	$max = max($max,$linmax);
	1741	}
[2]	1742
[284]	1743	$tres = $this->GetTextsXMinMax();
	1744	if( $tres ) {
	1745	list($tmin,$tmax) = $tres ;
	1746	$min = min($min,$tmin);
	1747	$max = max($max,$tmax);
	1748	}
[2]	1749
[284]	1750	$tres = $this->GetTextsXMinMax(true);
	1751	if( $tres ) {
	1752	list($tmin,$tmax) = $tres ;
	1753	$min = min($min,$tmin);
	1754	$max = max($max,$tmax);
	1755	}
[2]	1756
[284]	1757	$this->xscale->AutoScale($this->img,$min,$max,round($this->img->plotwidth/$this->xtick_factor));
	1758	}
[2]	1759
[284]	1760	//Adjust position of y-axis and y2-axis to minimum/maximum of x-scale
	1761	if( !is_numeric($this->yaxis->pos) && !is_string($this->yaxis->pos) ) {
	1762	$this->yaxis->SetPos($this->xscale->GetMinVal());
	1763	}
	1764	}
	1765	elseif( $this->xscale->IsSpecified() &&
	1766	( $this->xscale->auto_ticks \|\| !$this->xscale->ticks->IsSpecified()) ) {
	1767	// The tick calculation will use the user suplied min/max values to determine
	1768	// the ticks. If auto_ticks is false the exact user specifed min and max
	1769	// values will be used for the scale.
	1770	// If auto_ticks is true then the scale might be slightly adjusted
	1771	// so that the min and max values falls on an even major step.
	1772	$min = $this->xscale->scale[0];
	1773	$max = $this->xscale->scale[1];
	1774	$this->xscale->AutoScale($this->img,$min,$max,round($this->img->plotwidth/$this->xtick_factor),false);
[2]	1775
[284]	1776	// Now make sure we show enough precision to accurate display the
	1777	// labels. If this is not done then the user might end up with
	1778	// a scale that might actually start with, say 13.5, butdue to rounding
	1779	// the scale label will ony show 14.
	1780	if( abs(floor($min)-$min) > 0 ) {
[2]	1781
[284]	1782	// If the user has set a format then we bail out
	1783	if( $this->xscale->ticks->label_formatstr == '' && $this->xscale->ticks->label_dateformatstr == '' ) {
	1784	$this->xscale->ticks->precision = abs( floor(log10( abs(floor($min)-$min))) )+1;
	1785	}
	1786	}
	1787	}
[2]	1788
[284]	1789	// Position the optional Y2 and Yn axis to the rightmost position of the x-axis
	1790	if( $this->y2axis != null ) {
	1791	if( !is_numeric($this->y2axis->pos) && !is_string($this->y2axis->pos) ) {
	1792	$this->y2axis->SetPos($this->xscale->GetMaxVal());
	1793	}
	1794	$this->y2axis->SetTitleSide(SIDE_RIGHT);
	1795	}
[2]	1796
[284]	1797	$n = count($this->ynaxis);
	1798	$nY2adj = $this->y2axis != null ? $this->iYAxisDeltaPos : 0;
	1799	for( $i=0; $i < $n; ++$i ) {
	1800	if( $this->ynaxis[$i] != null ) {
	1801	if( !is_numeric($this->ynaxis[$i]->pos) && !is_string($this->ynaxis[$i]->pos) ) {
	1802	$this->ynaxis[$i]->SetPos($this->xscale->GetMaxVal());
	1803	$this->ynaxis[$i]->SetPosAbsDelta($i*$this->iYAxisDeltaPos + $nY2adj);
	1804	}
	1805	$this->ynaxis[$i]->SetTitleSide(SIDE_RIGHT);
	1806	}
	1807	}
	1808	}
[2]	1809
	1810
[284]	1811	function doAutoScaleYnAxis() {
[2]	1812
[284]	1813	if( $this->y2scale != null) {
	1814	if( !$this->y2scale->IsSpecified() && count($this->y2plots)>0 ) {
	1815	list($min,$max) = $this->GetPlotsYMinMax($this->y2plots);
[2]	1816
[284]	1817	$lres = $this->GetLinesYMinMax($this->y2lines);
	1818	if( is_array($lres) ) {
	1819	list($linmin,$linmax) = $lres ;
	1820	$min = min($min,$linmin);
	1821	$max = max($max,$linmax);
	1822	}
	1823	$tres = $this->GetTextsYMinMax(true);
	1824	if( is_array($tres) ) {
	1825	list($tmin,$tmax) = $tres ;
	1826	$min = min($min,$tmin);
	1827	$max = max($max,$tmax);
	1828	}
	1829	$this->y2scale->AutoScale($this->img,$min,$max,$this->img->plotheight/$this->ytick_factor);
	1830	}
	1831	elseif( $this->y2scale->IsSpecified() && ( $this->y2scale->auto_ticks \|\| !$this->y2scale->ticks->IsSpecified()) ) {
	1832	// The tick calculation will use the user suplied min/max values to determine
	1833	// the ticks. If auto_ticks is false the exact user specifed min and max
	1834	// values will be used for the scale.
	1835	// If auto_ticks is true then the scale might be slightly adjusted
	1836	// so that the min and max values falls on an even major step.
	1837	$min = $this->y2scale->scale[0];
	1838	$max = $this->y2scale->scale[1];
	1839	$this->y2scale->AutoScale($this->img,$min,$max,
	1840	$this->img->plotheight/$this->ytick_factor,
	1841	$this->y2scale->auto_ticks);
[2]	1842
[284]	1843	// Now make sure we show enough precision to accurate display the
	1844	// labels. If this is not done then the user might end up with
	1845	// a scale that might actually start with, say 13.5, butdue to rounding
	1846	// the scale label will ony show 14.
	1847	if( abs(floor($min)-$min) > 0 ) {
	1848	// If the user has set a format then we bail out
	1849	if( $this->y2scale->ticks->label_formatstr == '' && $this->y2scale->ticks->label_dateformatstr == '' ) {
	1850	$this->y2scale->ticks->precision = abs( floor(log10( abs(floor($min)-$min))) )+1;
	1851	}
	1852	}
[2]	1853
[284]	1854	}
	1855	}
[2]	1856
	1857
[284]	1858	//
	1859	// Autoscale the extra Y-axises
	1860	//
	1861	$n = count($this->ynaxis);
	1862	for( $i=0; $i < $n; ++$i ) {
	1863	if( $this->ynscale[$i] != null) {
	1864	if( !$this->ynscale[$i]->IsSpecified() && count($this->ynplots[$i])>0 ) {
	1865	list($min,$max) = $this->GetPlotsYMinMax($this->ynplots[$i]);
	1866	$this->ynscale[$i]->AutoScale($this->img,$min,$max,$this->img->plotheight/$this->ytick_factor);
	1867	}
	1868	elseif( $this->ynscale[$i]->IsSpecified() && ( $this->ynscale[$i]->auto_ticks \|\| !$this->ynscale[$i]->ticks->IsSpecified()) ) {
	1869	// The tick calculation will use the user suplied min/max values to determine
	1870	// the ticks. If auto_ticks is false the exact user specifed min and max
	1871	// values will be used for the scale.
	1872	// If auto_ticks is true then the scale might be slightly adjusted
	1873	// so that the min and max values falls on an even major step.
	1874	$min = $this->ynscale[$i]->scale[0];
	1875	$max = $this->ynscale[$i]->scale[1];
	1876	$this->ynscale[$i]->AutoScale($this->img,$min,$max,
	1877	$this->img->plotheight/$this->ytick_factor,
	1878	$this->ynscale[$i]->auto_ticks);
[2]	1879
[284]	1880	// Now make sure we show enough precision to accurate display the
	1881	// labels. If this is not done then the user might end up with
	1882	// a scale that might actually start with, say 13.5, butdue to rounding
	1883	// the scale label will ony show 14.
	1884	if( abs(floor($min)-$min) > 0 ) {
	1885	// If the user has set a format then we bail out
	1886	if( $this->ynscale[$i]->ticks->label_formatstr == '' && $this->ynscale[$i]->ticks->label_dateformatstr == '' ) {
	1887	$this->ynscale[$i]->ticks->precision = abs( floor(log10( abs(floor($min)-$min))) )+1;
	1888	}
	1889	}
	1890	}
	1891	}
	1892	}
	1893	}
[2]	1894
[284]	1895	function doAutoScaleYAxis() {
[2]	1896
[284]	1897	//Check if we should autoscale y-axis
	1898	if( !$this->yscale->IsSpecified() && count($this->plots)>0 ) {
	1899	list($min,$max) = $this->GetPlotsYMinMax($this->plots);
	1900	$lres = $this->GetLinesYMinMax($this->lines);
	1901	if( is_array($lres) ) {
	1902	list($linmin,$linmax) = $lres ;
	1903	$min = min($min,$linmin);
	1904	$max = max($max,$linmax);
	1905	}
	1906	$tres = $this->GetTextsYMinMax();
	1907	if( is_array($tres) ) {
	1908	list($tmin,$tmax) = $tres ;
	1909	$min = min($min,$tmin);
	1910	$max = max($max,$tmax);
	1911	}
	1912	$this->yscale->AutoScale($this->img,$min,$max,
	1913	$this->img->plotheight/$this->ytick_factor);
	1914	}
	1915	elseif( $this->yscale->IsSpecified() && ( $this->yscale->auto_ticks \|\| !$this->yscale->ticks->IsSpecified()) ) {
	1916	// The tick calculation will use the user suplied min/max values to determine
	1917	// the ticks. If auto_ticks is false the exact user specifed min and max
	1918	// values will be used for the scale.
	1919	// If auto_ticks is true then the scale might be slightly adjusted
	1920	// so that the min and max values falls on an even major step.
	1921	$min = $this->yscale->scale[0];
	1922	$max = $this->yscale->scale[1];
	1923	$this->yscale->AutoScale($this->img,$min,$max,
	1924	$this->img->plotheight/$this->ytick_factor,
	1925	$this->yscale->auto_ticks);
[2]	1926
[284]	1927	// Now make sure we show enough precision to accurate display the
	1928	// labels. If this is not done then the user might end up with
	1929	// a scale that might actually start with, say 13.5, butdue to rounding
	1930	// the scale label will ony show 14.
	1931	if( abs(floor($min)-$min) > 0 ) {
[2]	1932
[284]	1933	// If the user has set a format then we bail out
	1934	if( $this->yscale->ticks->label_formatstr == '' && $this->yscale->ticks->label_dateformatstr == '' ) {
	1935	$this->yscale->ticks->precision = abs( floor(log10( abs(floor($min)-$min))) )+1;
	1936	}
	1937	}
	1938	}
[2]	1939
[284]	1940	}
[2]	1941
[284]	1942	function InitScaleConstants() {
	1943	// Setup scale constants
	1944	if( $this->yscale ) $this->yscale->InitConstants($this->img);
	1945	if( $this->xscale ) $this->xscale->InitConstants($this->img);
	1946	if( $this->y2scale ) $this->y2scale->InitConstants($this->img);
[2]	1947
[284]	1948	$n=count($this->ynscale);
	1949	for($i=0; $i < $n; ++$i) {
	1950	if( $this->ynscale[$i] ) {
	1951	$this->ynscale[$i]->InitConstants($this->img);
	1952	}
	1953	}
	1954	}
[2]	1955
[284]	1956	function doPrestrokeAdjustments() {
[2]	1957
[284]	1958	// Do any pre-stroke adjustment that is needed by the different plot types
	1959	// (i.e bar plots want's to add an offset to the x-labels etc)
	1960	for($i=0; $i < count($this->plots) ; ++$i ) {
	1961	$this->plots[$i]->PreStrokeAdjust($this);
	1962	$this->plots[$i]->DoLegend($this);
	1963	}
[2]	1964
[284]	1965	// Any plots on the second Y scale?
	1966	if( $this->y2scale != null ) {
	1967	for($i=0; $i<count($this->y2plots) ; ++$i ) {
	1968	$this->y2plots[$i]->PreStrokeAdjust($this);
	1969	$this->y2plots[$i]->DoLegend($this);
	1970	}
	1971	}
[2]	1972
[284]	1973	// Any plots on the extra Y axises?
	1974	$n = count($this->ynaxis);
	1975	for($i=0; $i<$n ; ++$i ) {
	1976	if( $this->ynplots == null \|\| $this->ynplots[$i] == null) {
	1977	JpGraphError::RaiseL(25032,$i);//("No plots for Y-axis nbr:$i");
	1978	}
	1979	$m = count($this->ynplots[$i]);
	1980	for($j=0; $j < $m; ++$j ) {
	1981	$this->ynplots[$i][$j]->PreStrokeAdjust($this);
	1982	$this->ynplots[$i][$j]->DoLegend($this);
	1983	}
	1984	}
	1985	}
[2]	1986
[284]	1987	function StrokeBands($aDepth,$aCSIM) {
	1988	// Stroke bands
	1989	if( $this->bands != null && !$aCSIM) {
	1990	for($i=0; $i < count($this->bands); ++$i) {
	1991	// Stroke all bands that asks to be in the background
	1992	if( $this->bands[$i]->depth == $aDepth ) {
	1993	$this->bands[$i]->Stroke($this->img,$this->xscale,$this->yscale);
	1994	}
	1995	}
	1996	}
[2]	1997
[284]	1998	if( $this->y2bands != null && $this->y2scale != null && !$aCSIM ) {
	1999	for($i=0; $i < count($this->y2bands); ++$i) {
	2000	// Stroke all bands that asks to be in the foreground
	2001	if( $this->y2bands[$i]->depth == $aDepth ) {
	2002	$this->y2bands[$i]->Stroke($this->img,$this->xscale,$this->y2scale);
	2003	}
	2004	}
	2005	}
	2006	}
[2]	2007
	2008
[284]	2009	// Stroke the graph
	2010	// $aStrokeFileName If != "" the image will be written to this file and NOT
	2011	// streamed back to the browser
	2012	function Stroke($aStrokeFileName='') {
	2013	// Fist make a sanity check that user has specified a scale
	2014	if( empty($this->yscale) ) {
	2015	JpGraphError::RaiseL(25031);//('You must specify what scale to use with a call to Graph::SetScale().');
	2016	}
[2]	2017
[284]	2018	// Start by adjusting the margin so that potential titles will fit.
	2019	$this->AdjustMarginsForTitles();
[2]	2020
[284]	2021	// Give the plot a chance to do any scale adjuments the individual plots
	2022	// wants to do. Right now this is only used by the contour plot to set scale
	2023	// limits
	2024	for($i=0; $i < count($this->plots) ; ++$i ) {
	2025	$this->plots[$i]->PreScaleSetup($this);
	2026	}
[2]	2027
[284]	2028	// Init scale constants that are used to calculate the transformation from
	2029	// world to pixel coordinates
	2030	$this->InitScaleConstants();
[2]	2031
[284]	2032	// If the filename is the predefined value = '_csim_special_'
	2033	// we assume that the call to stroke only needs to do enough
	2034	// to correctly generate the CSIM maps.
	2035	// We use this variable to skip things we don't strictly need
	2036	// to do to generate the image map to improve performance
	2037	// a best we can. Therefor you will see a lot of tests !$_csim in the
	2038	// code below.
	2039	$_csim = ($aStrokeFileName===_CSIM_SPECIALFILE);
[2]	2040
[284]	2041	// If we are called the second time (perhaps the user has called GetHTMLImageMap()
	2042	// himself then the legends have alsready been populated once in order to get the
	2043	// CSIM coordinats. Since we do not want the legends to be populated a second time
	2044	// we clear the legends
	2045	$this->legend->Clear();
[2]	2046
[284]	2047	// We need to know if we have stroked the plot in the
	2048	// GetCSIMareas. Otherwise the CSIM hasn't been generated
	2049	// and in the case of GetCSIM called before stroke to generate
	2050	// CSIM without storing an image to disk GetCSIM must call Stroke.
	2051	$this->iHasStroked = true;
[2]	2052
[284]	2053	// Setup pre-stroked adjustments and Legends
	2054	$this->doPrestrokeAdjustments();
[2]	2055
[284]	2056	if ($this->graph_theme) {
	2057	$this->graph_theme->PreStrokeApply($this);
	2058	}
[2]	2059
[284]	2060	// Bail out if any of the Y-axis not been specified and
	2061	// has no plots. (This means it is impossible to do autoscaling and
	2062	// no other scale was given so we can't possible draw anything). If you use manual
	2063	// scaling you also have to supply the tick steps as well.
	2064	if( (!$this->yscale->IsSpecified() && count($this->plots)==0) \|\|
	2065	($this->y2scale!=null && !$this->y2scale->IsSpecified() && count($this->y2plots)==0) ) {
	2066	//$e = "n=".count($this->y2plots)."\n";
	2067	// $e = "Can't draw unspecified Y-scale.<br>\nYou have either:<br>\n";
	2068	// $e .= "1. Specified an Y axis for autoscaling but have not supplied any plots<br>\n";
	2069	// $e .= "2. Specified a scale manually but have forgot to specify the tick steps";
	2070	JpGraphError::RaiseL(25026);
	2071	}
[2]	2072
[284]	2073	// Bail out if no plots and no specified X-scale
	2074	if( (!$this->xscale->IsSpecified() && count($this->plots)==0 && count($this->y2plots)==0) ) {
	2075	JpGraphError::RaiseL(25034);//("<strong>JpGraph: Can't draw unspecified X-scale.</strong><br>No plots.<br>");
	2076	}
[2]	2077
[284]	2078	// Autoscale the normal Y-axis
	2079	$this->doAutoScaleYAxis();
[2]	2080
[284]	2081	// Autoscale all additiopnal y-axis
	2082	$this->doAutoScaleYnAxis();
[2]	2083
[284]	2084	// Autoscale the regular x-axis and position the y-axis properly
	2085	$this->doAutoScaleXAxis();
[2]	2086
[284]	2087	// If we have a negative values and x-axis position is at 0
	2088	// we need to supress the first and possible the last tick since
	2089	// they will be drawn on top of the y-axis (and possible y2 axis)
	2090	// The test below might seem strange the reasone being that if
	2091	// the user hasn't specified a value for position this will not
	2092	// be set until we do the stroke for the axis so as of now it
	2093	// is undefined.
	2094	// For X-text scale we ignore all this since the tick are usually
	2095	// much further in and not close to the Y-axis. Hence the test
	2096	// for 'text'
	2097	if( ($this->yaxis->pos==$this->xscale->GetMinVal() \|\| (is_string($this->yaxis->pos) && $this->yaxis->pos=='min')) &&
	2098	!is_numeric($this->xaxis->pos) && $this->yscale->GetMinVal() < 0 &&
	2099	substr($this->axtype,0,4) != 'text' && $this->xaxis->pos != 'min' ) {
	2100
	2101	//$this->yscale->ticks->SupressZeroLabel(false);
	2102	$this->xscale->ticks->SupressFirst();
	2103	if( $this->y2axis != null ) {
	2104	$this->xscale->ticks->SupressLast();
	2105	}
	2106	}
	2107	elseif( !is_numeric($this->yaxis->pos) && $this->yaxis->pos=='max' ) {
	2108	$this->xscale->ticks->SupressLast();
	2109	}
	2110
	2111	if( !$_csim ) {
	2112	$this->StrokePlotArea();
	2113	if( $this->iIconDepth == DEPTH_BACK ) {
	2114	$this->StrokeIcons();
	2115	}
	2116	}
	2117	$this->StrokeAxis(false);
	2118
	2119	// Stroke colored bands
	2120	$this->StrokeBands(DEPTH_BACK,$_csim);
	2121
	2122	if( $this->grid_depth == DEPTH_BACK && !$_csim) {
	2123	$this->ygrid->Stroke();
	2124	$this->xgrid->Stroke();
	2125	}
	2126
	2127	// Stroke Y2-axis
	2128	if( $this->y2axis != null && !$_csim) {
	2129	$this->y2axis->Stroke($this->xscale);
	2130	$this->y2grid->Stroke();
	2131	}
	2132
	2133	// Stroke yn-axis
	2134	$n = count($this->ynaxis);
	2135	for( $i=0; $i < $n; ++$i ) {
	2136	$this->ynaxis[$i]->Stroke($this->xscale);
	2137	}
	2138
	2139	$oldoff=$this->xscale->off;
	2140	if( substr($this->axtype,0,4) == 'text' ) {
	2141	if( $this->text_scale_abscenteroff > -1 ) {
	2142	// For a text scale the scale factor is the number of pixel per step.
	2143	// Hence we can use the scale factor as a substitute for number of pixels
	2144	// per major scale step and use that in order to adjust the offset so that
	2145	// an object of width "abscenteroff" becomes centered.
	2146	$this->xscale->off += round($this->xscale->scale_factor/2)-round($this->text_scale_abscenteroff/2);
	2147	}
	2148	else {
	2149	$this->xscale->off += ceil($this->xscale->scale_factor$this->text_scale_off$this->xscale->ticks->minor_step);
	2150	}
	2151	}
	2152
	2153	if( $this->iDoClipping ) {
	2154	$oldimage = $this->img->CloneCanvasH();
	2155	}
	2156
	2157	if( ! $this->y2orderback ) {
	2158	// Stroke all plots for Y1 axis
	2159	for($i=0; $i < count($this->plots); ++$i) {
	2160	$this->plots[$i]->Stroke($this->img,$this->xscale,$this->yscale);
	2161	$this->plots[$i]->StrokeMargin($this->img);
	2162	}
	2163	}
	2164
	2165	// Stroke all plots for Y2 axis
	2166	if( $this->y2scale != null ) {
	2167	for($i=0; $i< count($this->y2plots); ++$i ) {
	2168	$this->y2plots[$i]->Stroke($this->img,$this->xscale,$this->y2scale);
	2169	}
	2170	}
	2171
	2172	if( $this->y2orderback ) {
	2173	// Stroke all plots for Y1 axis
	2174	for($i=0; $i < count($this->plots); ++$i) {
	2175	$this->plots[$i]->Stroke($this->img,$this->xscale,$this->yscale);
	2176	$this->plots[$i]->StrokeMargin($this->img);
	2177	}
	2178	}
	2179
	2180	$n = count($this->ynaxis);
	2181	for( $i=0; $i < $n; ++$i ) {
	2182	$m = count($this->ynplots[$i]);
	2183	for( $j=0; $j < $m; ++$j ) {
	2184	$this->ynplots[$i][$j]->Stroke($this->img,$this->xscale,$this->ynscale[$i]);
	2185	$this->ynplots[$i][$j]->StrokeMargin($this->img);
	2186	}
	2187	}
	2188
	2189	if( $this->iIconDepth == DEPTH_FRONT) {
	2190	$this->StrokeIcons();
	2191	}
	2192
	2193	if( $this->iDoClipping ) {
	2194	// Clipping only supports graphs at 0 and 90 degrees
	2195	if( $this->img->a == 0 ) {
	2196	$this->img->CopyCanvasH($oldimage,$this->img->img,
	2197	$this->img->left_margin,$this->img->top_margin,
	2198	$this->img->left_margin,$this->img->top_margin,
	2199	$this->img->plotwidth+1,$this->img->plotheight);
	2200	}
	2201	elseif( $this->img->a == 90 ) {
	2202	$adj = ($this->img->height - $this->img->width)/2;
	2203	$this->img->CopyCanvasH($oldimage,$this->img->img,
	2204	$this->img->bottom_margin-$adj,$this->img->left_margin+$adj,
	2205	$this->img->bottom_margin-$adj,$this->img->left_margin+$adj,
	2206	$this->img->plotheight+1,$this->img->plotwidth);
	2207	}
	2208	else {
	2209	JpGraphError::RaiseL(25035,$this->img->a);//('You have enabled clipping. Cliping is only supported for graphs at 0 or 90 degrees rotation. Please adjust you current angle (='.$this->img->a.' degrees) or disable clipping.');
	2210	}
	2211	$this->img->Destroy();
	2212	$this->img->SetCanvasH($oldimage);
	2213	}
	2214
	2215	$this->xscale->off=$oldoff;
	2216
	2217	if( $this->grid_depth == DEPTH_FRONT && !$_csim ) {
	2218	$this->ygrid->Stroke();
	2219	$this->xgrid->Stroke();
	2220	}
	2221
	2222	// Stroke colored bands
	2223	$this->StrokeBands(DEPTH_FRONT,$_csim);
	2224
	2225	// Finally draw the axis again since some plots may have nagged
	2226	// the axis in the edges.
	2227	if( !$_csim ) {
	2228	$this->StrokeAxis();
	2229	}
	2230
	2231	if( $this->y2scale != null && !$_csim ) {
	2232	$this->y2axis->Stroke($this->xscale,false);
	2233	}
	2234
	2235	if( !$_csim ) {
	2236	$this->StrokePlotBox();
	2237	}
	2238
	2239	// The titles and legends never gets rotated so make sure
	2240	// that the angle is 0 before stroking them
	2241	$aa = $this->img->SetAngle(0);
	2242	$this->StrokeTitles();
	2243	$this->footer->Stroke($this->img);
	2244	$this->legend->Stroke($this->img);
	2245	$this->img->SetAngle($aa);
	2246	$this->StrokeTexts();
	2247	$this->StrokeTables();
	2248
	2249	if( !$_csim ) {
	2250
	2251	$this->img->SetAngle($aa);
	2252
	2253	// Draw an outline around the image map
	2254	if(_JPG_DEBUG) {
	2255	$this->DisplayClientSideaImageMapAreas();
	2256	}
	2257
	2258	// Should we do any final image transformation
	2259	if( $this->iImgTrans ) {
	2260	if( !class_exists('ImgTrans',false) ) {
	2261	require_once('jpgraph_imgtrans.php');
	2262	//JpGraphError::Raise('In order to use image transformation you must include the file jpgraph_imgtrans.php in your script.');
	2263	}
	2264
	2265	$tform = new ImgTrans($this->img->img);
	2266	$this->img->img = $tform->Skew3D($this->iImgTransHorizon,$this->iImgTransSkewDist,
	2267	$this->iImgTransDirection,$this->iImgTransHighQ,
	2268	$this->iImgTransMinSize,$this->iImgTransFillColor,
	2269	$this->iImgTransBorder);
	2270	}
	2271
	2272	// If the filename is given as the special "__handle"
	2273	// then the image handler is returned and the image is NOT
	2274	// streamed back
	2275	if( $aStrokeFileName == _IMG_HANDLER ) {
	2276	return $this->img->img;
	2277	}
	2278	else {
	2279	// Finally stream the generated picture
	2280	$this->cache->PutAndStream($this->img,$this->cache_name,$this->inline,$aStrokeFileName);
	2281	}
	2282	}
[2]	2283	}
	2284
	2285	function SetAxisLabelBackground($aType,$aXFColor='lightgray',$aXColor='black',$aYFColor='lightgray',$aYColor='black') {
[284]	2286	$this->iAxisLblBgType = $aType;
	2287	$this->iXAxisLblBgFillColor = $aXFColor;
	2288	$this->iXAxisLblBgColor = $aXColor;
	2289	$this->iYAxisLblBgFillColor = $aYFColor;
	2290	$this->iYAxisLblBgColor = $aYColor;
[2]	2291	}
	2292
	2293	function StrokeAxisLabelBackground() {
[284]	2294	// Types
	2295	// 0 = No background
	2296	// 1 = Only X-labels, length of axis
	2297	// 2 = Only Y-labels, length of axis
	2298	// 3 = As 1 but extends to width of graph
	2299	// 4 = As 2 but extends to height of graph
	2300	// 5 = Combination of 3 & 4
	2301	// 6 = Combination of 1 & 2
[2]	2302
[284]	2303	$t = $this->iAxisLblBgType ;
	2304	if( $t < 1 ) return;
[2]	2305
[284]	2306	// Stroke optional X-axis label background color
	2307	if( $t == 1 \|\| $t == 3 \|\| $t == 5 \|\| $t == 6 ) {
	2308	$this->img->PushColor($this->iXAxisLblBgFillColor);
	2309	if( $t == 1 \|\| $t == 6 ) {
	2310	$xl = $this->img->left_margin;
	2311	$yu = $this->img->height - $this->img->bottom_margin + 1;
	2312	$xr = $this->img->width - $this->img->right_margin ;
	2313	$yl = $this->img->height-1-$this->frame_weight;
	2314	}
	2315	else { // t==3 \|\| t==5
	2316	$xl = $this->frame_weight;
	2317	$yu = $this->img->height - $this->img->bottom_margin + 1;
	2318	$xr = $this->img->width - 1 - $this->frame_weight;
	2319	$yl = $this->img->height-1-$this->frame_weight;
	2320	}
[2]	2321
[284]	2322	$this->img->FilledRectangle($xl,$yu,$xr,$yl);
	2323	$this->img->PopColor();
[2]	2324
[284]	2325	// Check if we should add the vertical lines at left and right edge
	2326	if( $this->iXAxisLblBgColor !== '' ) {
	2327	// Hardcode to one pixel wide
	2328	$this->img->SetLineWeight(1);
	2329	$this->img->PushColor($this->iXAxisLblBgColor);
	2330	if( $t == 1 \|\| $t == 6 ) {
	2331	$this->img->Line($xl,$yu,$xl,$yl);
	2332	$this->img->Line($xr,$yu,$xr,$yl);
	2333	}
	2334	else {
	2335	$xl = $this->img->width - $this->img->right_margin ;
	2336	$this->img->Line($xl,$yu-1,$xr,$yu-1);
	2337	}
	2338	$this->img->PopColor();
	2339	}
	2340	}
[2]	2341
[284]	2342	if( $t == 2 \|\| $t == 4 \|\| $t == 5 \|\| $t == 6 ) {
	2343	$this->img->PushColor($this->iYAxisLblBgFillColor);
	2344	if( $t == 2 \|\| $t == 6 ) {
	2345	$xl = $this->frame_weight;
	2346	$yu = $this->frame_weight+$this->img->top_margin;
	2347	$xr = $this->img->left_margin - 1;
	2348	$yl = $this->img->height - $this->img->bottom_margin + 1;
	2349	}
	2350	else {
	2351	$xl = $this->frame_weight;
	2352	$yu = $this->frame_weight;
	2353	$xr = $this->img->left_margin - 1;
	2354	$yl = $this->img->height-1-$this->frame_weight;
	2355	}
[2]	2356
[284]	2357	$this->img->FilledRectangle($xl,$yu,$xr,$yl);
	2358	$this->img->PopColor();
	2359
	2360	// Check if we should add the vertical lines at left and right edge
	2361	if( $this->iXAxisLblBgColor !== '' ) {
	2362	$this->img->PushColor($this->iXAxisLblBgColor);
	2363	if( $t == 2 \|\| $t == 6 ) {
	2364	$this->img->Line($xl,$yu-1,$xr,$yu-1);
	2365	$this->img->Line($xl,$yl-1,$xr,$yl-1);
	2366	}
	2367	else {
	2368	$this->img->Line($xr+1,$yu,$xr+1,$this->img->top_margin);
	2369	}
	2370	$this->img->PopColor();
	2371	}
	2372
	2373	}
[2]	2374	}
	2375
	2376	function StrokeAxis($aStrokeLabels=true) {
	2377
[284]	2378	if( $aStrokeLabels ) {
	2379	$this->StrokeAxisLabelBackground();
	2380	}
[2]	2381
[284]	2382	// Stroke axis
	2383	if( $this->iAxisStyle != AXSTYLE_SIMPLE ) {
	2384	switch( $this->iAxisStyle ) {
	2385	case AXSTYLE_BOXIN :
	2386	$toppos = SIDE_DOWN;
	2387	$bottompos = SIDE_UP;
	2388	$leftpos = SIDE_RIGHT;
	2389	$rightpos = SIDE_LEFT;
	2390	break;
	2391	case AXSTYLE_BOXOUT :
	2392	$toppos = SIDE_UP;
	2393	$bottompos = SIDE_DOWN;
	2394	$leftpos = SIDE_LEFT;
	2395	$rightpos = SIDE_RIGHT;
	2396	break;
	2397	case AXSTYLE_YBOXIN:
	2398	$toppos = FALSE;
	2399	$bottompos = SIDE_UP;
	2400	$leftpos = SIDE_RIGHT;
	2401	$rightpos = SIDE_LEFT;
	2402	break;
	2403	case AXSTYLE_YBOXOUT:
	2404	$toppos = FALSE;
	2405	$bottompos = SIDE_DOWN;
	2406	$leftpos = SIDE_LEFT;
	2407	$rightpos = SIDE_RIGHT;
	2408	break;
	2409	default:
	2410	JpGRaphError::RaiseL(25036,$this->iAxisStyle); //('Unknown AxisStyle() : '.$this->iAxisStyle);
	2411	break;
	2412	}
[2]	2413
[284]	2414	// By default we hide the first label so it doesn't cross the
	2415	// Y-axis in case the positon hasn't been set by the user.
	2416	// However, if we use a box we always want the first value
	2417	// displayed so we make sure it will be displayed.
	2418	$this->xscale->ticks->SupressFirst(false);
[2]	2419
[284]	2420	// Now draw the bottom X-axis
	2421	$this->xaxis->SetPos('min');
	2422	$this->xaxis->SetLabelSide(SIDE_DOWN);
	2423	$this->xaxis->scale->ticks->SetSide($bottompos);
	2424	$this->xaxis->Stroke($this->yscale,$aStrokeLabels);
[2]	2425
[284]	2426	if( $toppos !== FALSE ) {
	2427	// We also want a top X-axis
	2428	$this->xaxis = $this->xaxis;
	2429	$this->xaxis->SetPos('max');
	2430	$this->xaxis->SetLabelSide(SIDE_UP);
	2431	// No title for the top X-axis
	2432	if( $aStrokeLabels ) {
	2433	$this->xaxis->title->Set('');
	2434	}
	2435	$this->xaxis->scale->ticks->SetSide($toppos);
	2436	$this->xaxis->Stroke($this->yscale,$aStrokeLabels);
	2437	}
	2438
	2439	// Stroke the left Y-axis
	2440	$this->yaxis->SetPos('min');
	2441	$this->yaxis->SetLabelSide(SIDE_LEFT);
	2442	$this->yaxis->scale->ticks->SetSide($leftpos);
	2443	$this->yaxis->Stroke($this->xscale,$aStrokeLabels);
	2444
	2445	// Stroke the right Y-axis
	2446	$this->yaxis->SetPos('max');
	2447	// No title for the right side
	2448	if( $aStrokeLabels ) {
	2449	$this->yaxis->title->Set('');
	2450	}
	2451	$this->yaxis->SetLabelSide(SIDE_RIGHT);
	2452	$this->yaxis->scale->ticks->SetSide($rightpos);
	2453	$this->yaxis->Stroke($this->xscale,$aStrokeLabels);
	2454	}
	2455	else {
	2456	$this->xaxis->Stroke($this->yscale,$aStrokeLabels);
	2457	$this->yaxis->Stroke($this->xscale,$aStrokeLabels);
	2458	}
[2]	2459	}
	2460
	2461
	2462	// Private helper function for backgound image
	2463	static function LoadBkgImage($aImgFormat='',$aFile='',$aImgStr='') {
[284]	2464	if( $aImgStr != '' ) {
	2465	return Image::CreateFromString($aImgStr);
	2466	}
[2]	2467
[284]	2468	// Remove case sensitivity and setup appropriate function to create image
	2469	// Get file extension. This should be the LAST '.' separated part of the filename
	2470	$e = explode('.',$aFile);
	2471	$ext = strtolower($e[count($e)-1]);
	2472	if ($ext == "jpeg") {
	2473	$ext = "jpg";
	2474	}
[2]	2475
[284]	2476	if( trim($ext) == '' ) {
	2477	$ext = 'png'; // Assume PNG if no extension specified
	2478	}
[2]	2479
[284]	2480	if( $aImgFormat == '' ) {
	2481	$imgtag = $ext;
	2482	}
	2483	else {
	2484	$imgtag = $aImgFormat;
	2485	}
[2]	2486
[284]	2487	$supported = imagetypes();
	2488	if( ( $ext == 'jpg' && !($supported & IMG_JPG) ) \|\|
	2489	( $ext == 'gif' && !($supported & IMG_GIF) ) \|\|
	2490	( $ext == 'png' && !($supported & IMG_PNG) ) \|\|
	2491	( $ext == 'bmp' && !($supported & IMG_WBMP) ) \|\|
	2492	( $ext == 'xpm' && !($supported & IMG_XPM) ) ) {
[2]	2493
[284]	2494	JpGraphError::RaiseL(25037,$aFile);//('The image format of your background image ('.$aFile.') is not supported in your system configuration. ');
	2495	}
[2]	2496
	2497
[284]	2498	if( $imgtag == "jpg" \|\| $imgtag == "jpeg") {
	2499	$f = "imagecreatefromjpeg";
	2500	$imgtag = "jpg";
	2501	}
	2502	else {
	2503	$f = "imagecreatefrom".$imgtag;
	2504	}
[2]	2505
[284]	2506	// Compare specified image type and file extension
	2507	if( $imgtag != $ext ) {
	2508	//$t = "Background image seems to be of different type (has different file extension) than specified imagetype. Specified: '".$aImgFormat."'File: '".$aFile."'";
	2509	JpGraphError::RaiseL(25038, $aImgFormat, $aFile);
	2510	}
[2]	2511
[284]	2512	$img = @$f($aFile);
	2513	if( !$img ) {
	2514	JpGraphError::RaiseL(25039,$aFile);//(" Can't read background image: '".$aFile."'");
	2515	}
	2516	return $img;
	2517	}
	2518
	2519	function StrokePlotGrad() {
	2520	if( $this->plot_gradtype < 0 )
	2521	return;
	2522
	2523	$grad = new Gradient($this->img);
	2524	$xl = $this->img->left_margin;
	2525	$yt = $this->img->top_margin;
	2526	$xr = $xl + $this->img->plotwidth+1 ;
	2527	$yb = $yt + $this->img->plotheight ;
	2528	$grad->FilledRectangle($xl,$yt,$xr,$yb,$this->plot_gradfrom,$this->plot_gradto,$this->plot_gradtype);
	2529
	2530	}
	2531
[2]	2532	function StrokeBackgroundGrad() {
[284]	2533	if( $this->bkg_gradtype < 0 )
	2534	return;
	2535
	2536	$grad = new Gradient($this->img);
	2537	if( $this->bkg_gradstyle == BGRAD_PLOT ) {
	2538	$xl = $this->img->left_margin;
	2539	$yt = $this->img->top_margin;
	2540	$xr = $xl + $this->img->plotwidth+1 ;
	2541	$yb = $yt + $this->img->plotheight ;
	2542	$grad->FilledRectangle($xl,$yt,$xr,$yb,$this->bkg_gradfrom,$this->bkg_gradto,$this->bkg_gradtype);
	2543	}
	2544	else {
	2545	$xl = 0;
	2546	$yt = 0;
	2547	$xr = $xl + $this->img->width - 1;
	2548	$yb = $yt + $this->img->height - 1 ;
	2549	if( $this->doshadow ) {
	2550	$xr -= $this->shadow_width;
	2551	$yb -= $this->shadow_width;
	2552	}
	2553	if( $this->doframe ) {
	2554	$yt += $this->frame_weight;
	2555	$yb -= $this->frame_weight;
	2556	$xl += $this->frame_weight;
	2557	$xr -= $this->frame_weight;
	2558	}
	2559	$aa = $this->img->SetAngle(0);
	2560	$grad->FilledRectangle($xl,$yt,$xr,$yb,$this->bkg_gradfrom,$this->bkg_gradto,$this->bkg_gradtype);
	2561	$aa = $this->img->SetAngle($aa);
	2562	}
[2]	2563	}
	2564
	2565	function StrokeFrameBackground() {
[284]	2566	if( $this->background_image != '' && $this->background_cflag != '' ) {
	2567	JpGraphError::RaiseL(25040);//('It is not possible to specify both a background image and a background country flag.');
	2568	}
	2569	if( $this->background_image != '' ) {
	2570	$bkgimg = $this->LoadBkgImage($this->background_image_format,$this->background_image);
	2571	}
	2572	elseif( $this->background_cflag != '' ) {
	2573	if( ! class_exists('FlagImages',false) ) {
	2574	JpGraphError::RaiseL(25041);//('In order to use Country flags as backgrounds you must include the "jpgraph_flags.php" file.');
	2575	}
	2576	$fobj = new FlagImages(FLAGSIZE4);
	2577	$dummy='';
	2578	$bkgimg = $fobj->GetImgByName($this->background_cflag,$dummy);
	2579	$this->background_image_mix = $this->background_cflag_mix;
	2580	$this->background_image_type = $this->background_cflag_type;
	2581	}
	2582	else {
	2583	return ;
	2584	}
[2]	2585
[284]	2586	$bw = ImageSX($bkgimg);
	2587	$bh = ImageSY($bkgimg);
[2]	2588
[284]	2589	// No matter what the angle is we always stroke the image and frame
	2590	// assuming it is 0 degree
	2591	$aa = $this->img->SetAngle(0);
[2]	2592
[284]	2593	switch( $this->background_image_type ) {
	2594	case BGIMG_FILLPLOT: // Resize to just fill the plotarea
	2595	$this->FillMarginArea();
	2596	$this->StrokeFrame();
	2597	// Special case to hande 90 degree rotated graph corectly
	2598	if( $aa == 90 ) {
	2599	$this->img->SetAngle(90);
	2600	$this->FillPlotArea();
	2601	$aa = $this->img->SetAngle(0);
	2602	$adj = ($this->img->height - $this->img->width)/2;
	2603	$this->img->CopyMerge($bkgimg,
	2604	$this->img->bottom_margin-$adj,$this->img->left_margin+$adj,
	2605	0,0,
	2606	$this->img->plotheight+1,$this->img->plotwidth,
	2607	$bw,$bh,$this->background_image_mix);
	2608	}
	2609	else {
	2610	$this->FillPlotArea();
	2611	$this->img->CopyMerge($bkgimg,
	2612	$this->img->left_margin,$this->img->top_margin+1,
	2613	0,0,$this->img->plotwidth+1,$this->img->plotheight,
	2614	$bw,$bh,$this->background_image_mix);
	2615	}
	2616	break;
	2617	case BGIMG_FILLFRAME: // Fill the whole area from upper left corner, resize to just fit
	2618	$hadj=0; $vadj=0;
	2619	if( $this->doshadow ) {
	2620	$hadj = $this->shadow_width;
	2621	$vadj = $this->shadow_width;
	2622	}
	2623	$this->FillMarginArea();
	2624	$this->FillPlotArea();
	2625	$this->img->CopyMerge($bkgimg,0,0,0,0,$this->img->width-$hadj,$this->img->height-$vadj,
	2626	$bw,$bh,$this->background_image_mix);
	2627	$this->StrokeFrame();
	2628	break;
	2629	case BGIMG_COPY: // Just copy the image from left corner, no resizing
	2630	$this->FillMarginArea();
	2631	$this->FillPlotArea();
	2632	$this->img->CopyMerge($bkgimg,0,0,0,0,$bw,$bh,
	2633	$bw,$bh,$this->background_image_mix);
	2634	$this->StrokeFrame();
	2635	break;
	2636	case BGIMG_CENTER: // Center original image in the plot area
	2637	$this->FillMarginArea();
	2638	$this->FillPlotArea();
	2639	$centerx = round($this->img->plotwidth/2+$this->img->left_margin-$bw/2);
	2640	$centery = round($this->img->plotheight/2+$this->img->top_margin-$bh/2);
	2641	$this->img->CopyMerge($bkgimg,$centerx,$centery,0,0,$bw,$bh,
	2642	$bw,$bh,$this->background_image_mix);
	2643	$this->StrokeFrame();
	2644	break;
	2645	case BGIMG_FREE: // Just copy the image to the specified location
	2646	$this->img->CopyMerge($bkgimg,
	2647	$this->background_image_xpos,$this->background_image_ypos,
	2648	0,0,$bw,$bh,$bw,$bh,$this->background_image_mix);
	2649	$this->StrokeFrame(); // New
	2650	break;
	2651	default:
	2652	JpGraphError::RaiseL(25042);//(" Unknown background image layout");
	2653	}
	2654	$this->img->SetAngle($aa);
[2]	2655	}
	2656
	2657	// Private
	2658	// Draw a frame around the image
	2659	function StrokeFrame() {
[284]	2660	if( !$this->doframe ) return;
[2]	2661
[284]	2662	if( $this->background_image_type <= 1 && ($this->bkg_gradtype < 0 \|\| ($this->bkg_gradtype > 0 && $this->bkg_gradstyle==BGRAD_PLOT)) ) {
	2663	$c = $this->margin_color;
	2664	}
	2665	else {
	2666	$c = false;
	2667	}
	2668
	2669	if( $this->doshadow ) {
	2670	$this->img->SetColor($this->frame_color);
	2671	$this->img->ShadowRectangle(0,0,$this->img->width,$this->img->height,
	2672	$c,$this->shadow_width,$this->shadow_color);
	2673	}
	2674	elseif( $this->framebevel ) {
	2675	if( $c ) {
	2676	$this->img->SetColor($this->margin_color);
	2677	$this->img->FilledRectangle(0,0,$this->img->width-1,$this->img->height-1);
	2678	}
	2679	$this->img->Bevel(1,1,$this->img->width-2,$this->img->height-2,
	2680	$this->framebeveldepth,
	2681	$this->framebevelcolor1,$this->framebevelcolor2);
	2682	if( $this->framebevelborder ) {
	2683	$this->img->SetColor($this->framebevelbordercolor);
	2684	$this->img->Rectangle(0,0,$this->img->width-1,$this->img->height-1);
	2685	}
	2686	}
	2687	else {
	2688	$this->img->SetLineWeight($this->frame_weight);
	2689	if( $c ) {
	2690	$this->img->SetColor($this->margin_color);
	2691	$this->img->FilledRectangle(0,0,$this->img->width-1,$this->img->height-1);
	2692	}
	2693	$this->img->SetColor($this->frame_color);
	2694	$this->img->Rectangle(0,0,$this->img->width-1,$this->img->height-1);
	2695	}
[2]	2696	}
	2697
	2698	function FillMarginArea() {
[284]	2699	$hadj=0; $vadj=0;
	2700	if( $this->doshadow ) {
	2701	$hadj = $this->shadow_width;
	2702	$vadj = $this->shadow_width;
	2703	}
[2]	2704
[284]	2705	$this->img->SetColor($this->margin_color);
	2706	$this->img->FilledRectangle(0,0,$this->img->width-1-$hadj,$this->img->height-1-$vadj);
[2]	2707
[284]	2708	$this->img->FilledRectangle(0,0,$this->img->width-1-$hadj,$this->img->top_margin);
	2709	$this->img->FilledRectangle(0,$this->img->top_margin,$this->img->left_margin,$this->img->height-1-$hadj);
	2710	$this->img->FilledRectangle($this->img->left_margin+1,
	2711	$this->img->height-$this->img->bottom_margin,
	2712	$this->img->width-1-$hadj,
	2713	$this->img->height-1-$hadj);
	2714	$this->img->FilledRectangle($this->img->width-$this->img->right_margin,
	2715	$this->img->top_margin+1,
	2716	$this->img->width-1-$hadj,
	2717	$this->img->height-$this->img->bottom_margin-1);
[2]	2718	}
	2719
	2720	function FillPlotArea() {
[284]	2721	$this->img->PushColor($this->plotarea_color);
	2722	$this->img->FilledRectangle($this->img->left_margin,
	2723	$this->img->top_margin,
	2724	$this->img->width-$this->img->right_margin,
	2725	$this->img->height-$this->img->bottom_margin);
	2726	$this->img->PopColor();
[2]	2727	}
[284]	2728
[2]	2729	// Stroke the plot area with either a solid color or a background image
	2730	function StrokePlotArea() {
[284]	2731	// Note: To be consistent we really should take a possible shadow
	2732	// into account. However, that causes some problem for the LinearScale class
	2733	// since in the current design it does not have any links to class Graph which
	2734	// means it has no way of compensating for the adjusted plotarea in case of a
	2735	// shadow. So, until I redesign LinearScale we can't compensate for this.
	2736	// So just set the two adjustment parameters to zero for now.
	2737	$boxadj = 0; //$this->doframe ? $this->frame_weight : 0 ;
	2738	$adj = 0; //$this->doshadow ? $this->shadow_width : 0 ;
[2]	2739
[284]	2740	if( $this->background_image != '' \|\| $this->background_cflag != '' ) {
	2741	$this->StrokeFrameBackground();
	2742	}
	2743	else {
	2744	$aa = $this->img->SetAngle(0);
	2745	$this->StrokeFrame();
	2746	$aa = $this->img->SetAngle($aa);
	2747	$this->StrokeBackgroundGrad();
	2748	if( $this->bkg_gradtype < 0 \|\| ($this->bkg_gradtype > 0 && $this->bkg_gradstyle==BGRAD_MARGIN) ) {
	2749	$this->FillPlotArea();
	2750	}
	2751	$this->StrokePlotGrad();
	2752	}
	2753	}
[2]	2754
	2755	function StrokeIcons() {
[284]	2756	$n = count($this->iIcons);
	2757	for( $i=0; $i < $n; ++$i ) {
	2758	$this->iIcons[$i]->StrokeWithScale($this->img,$this->xscale,$this->yscale);
	2759	}
[2]	2760	}
[284]	2761
[2]	2762	function StrokePlotBox() {
[284]	2763	// Should we draw a box around the plot area?
	2764	if( $this->boxed ) {
	2765	$this->img->SetLineWeight(1);
	2766	$this->img->SetLineStyle('solid');
	2767	$this->img->SetColor($this->box_color);
	2768	for($i=0; $i < $this->box_weight; ++$i ) {
	2769	$this->img->Rectangle(
	2770	$this->img->left_margin-$i,$this->img->top_margin-$i,
	2771	$this->img->width-$this->img->right_margin+$i,
	2772	$this->img->height-$this->img->bottom_margin+$i);
	2773	}
	2774	}
	2775	}
[2]	2776
	2777	function SetTitleBackgroundFillStyle($aStyle,$aColor1='black',$aColor2='white') {
[284]	2778	$this->titlebkg_fillstyle = $aStyle;
	2779	$this->titlebkg_scolor1 = $aColor1;
	2780	$this->titlebkg_scolor2 = $aColor2;
[2]	2781	}
	2782
	2783	function SetTitleBackground($aBackColor='gray', $aStyle=TITLEBKG_STYLE1, $aFrameStyle=TITLEBKG_FRAME_NONE, $aFrameColor='black', $aFrameWeight=1, $aBevelHeight=3, $aEnable=true) {
[284]	2784	$this->titlebackground = $aEnable;
	2785	$this->titlebackground_color = $aBackColor;
	2786	$this->titlebackground_style = $aStyle;
	2787	$this->titlebackground_framecolor = $aFrameColor;
	2788	$this->titlebackground_framestyle = $aFrameStyle;
	2789	$this->titlebackground_frameweight = $aFrameWeight;
	2790	$this->titlebackground_bevelheight = $aBevelHeight ;
[2]	2791	}
	2792
	2793
	2794	function StrokeTitles() {
	2795
[284]	2796	$margin=3;
[2]	2797
[284]	2798	if( $this->titlebackground ) {
	2799	// Find out height
	2800	$this->title->margin += 2 ;
	2801	$h = $this->title->GetTextHeight($this->img)+$this->title->margin+$margin;
	2802	if( $this->subtitle->t != '' && !$this->subtitle->hide ) {
	2803	$h += $this->subtitle->GetTextHeight($this->img)+$margin+
	2804	$this->subtitle->margin;
	2805	$h += 2;
	2806	}
	2807	if( $this->subsubtitle->t != '' && !$this->subsubtitle->hide ) {
	2808	$h += $this->subsubtitle->GetTextHeight($this->img)+$margin+
	2809	$this->subsubtitle->margin;
	2810	$h += 2;
	2811	}
	2812	$this->img->PushColor($this->titlebackground_color);
	2813	if( $this->titlebackground_style === TITLEBKG_STYLE1 ) {
	2814	// Inside the frame
	2815	if( $this->framebevel ) {
	2816	$x1 = $y1 = $this->framebeveldepth + 1 ;
	2817	$x2 = $this->img->width - $this->framebeveldepth - 2 ;
	2818	$this->title->margin += $this->framebeveldepth + 1 ;
	2819	$h += $y1 ;
	2820	$h += 2;
	2821	}
	2822	else {
	2823	$x1 = $y1 = $this->frame_weight;
	2824	$x2 = $this->img->width - $this->frame_weight-1;
	2825	}
	2826	}
	2827	elseif( $this->titlebackground_style === TITLEBKG_STYLE2 ) {
	2828	// Cover the frame as well
	2829	$x1 = $y1 = 0;
	2830	$x2 = $this->img->width - 1 ;
	2831	}
	2832	elseif( $this->titlebackground_style === TITLEBKG_STYLE3 ) {
	2833	// Cover the frame as well (the difference is that
	2834	// for style==3 a bevel frame border is on top
	2835	// of the title background)
	2836	$x1 = $y1 = 0;
	2837	$x2 = $this->img->width - 1 ;
	2838	$h += $this->framebeveldepth ;
	2839	$this->title->margin += $this->framebeveldepth ;
	2840	}
	2841	else {
	2842	JpGraphError::RaiseL(25043);//('Unknown title background style.');
	2843	}
[2]	2844
[284]	2845	if( $this->titlebackground_framestyle === 3 ) {
	2846	$h += $this->titlebackground_bevelheight*2 + 1 ;
	2847	$this->title->margin += $this->titlebackground_bevelheight ;
	2848	}
[2]	2849
[284]	2850	if( $this->doshadow ) {
	2851	$x2 -= $this->shadow_width ;
	2852	}
[2]	2853
[284]	2854	$indent=0;
	2855	if( $this->titlebackground_framestyle == TITLEBKG_FRAME_BEVEL ) {
	2856	$indent = $this->titlebackground_bevelheight;
	2857	}
[2]	2858
[284]	2859	if( $this->titlebkg_fillstyle==TITLEBKG_FILLSTYLE_HSTRIPED ) {
	2860	$this->img->FilledRectangle2($x1+$indent,$y1+$indent,$x2-$indent,$h-$indent,
	2861	$this->titlebkg_scolor1,
	2862	$this->titlebkg_scolor2);
	2863	}
	2864	elseif( $this->titlebkg_fillstyle==TITLEBKG_FILLSTYLE_VSTRIPED ) {
	2865	$this->img->FilledRectangle2($x1+$indent,$y1+$indent,$x2-$indent,$h-$indent,
	2866	$this->titlebkg_scolor1,
	2867	$this->titlebkg_scolor2,2);
	2868	}
	2869	else {
	2870	// Solid fill
	2871	$this->img->FilledRectangle($x1,$y1,$x2,$h);
	2872	}
	2873	$this->img->PopColor();
[2]	2874
[284]	2875	$this->img->PushColor($this->titlebackground_framecolor);
	2876	$this->img->SetLineWeight($this->titlebackground_frameweight);
	2877	if( $this->titlebackground_framestyle == TITLEBKG_FRAME_FULL ) {
	2878	// Frame background
	2879	$this->img->Rectangle($x1,$y1,$x2,$h);
	2880	}
	2881	elseif( $this->titlebackground_framestyle == TITLEBKG_FRAME_BOTTOM ) {
	2882	// Bottom line only
	2883	$this->img->Line($x1,$h,$x2,$h);
	2884	}
	2885	elseif( $this->titlebackground_framestyle == TITLEBKG_FRAME_BEVEL ) {
	2886	$this->img->Bevel($x1,$y1,$x2,$h,$this->titlebackground_bevelheight);
	2887	}
	2888	$this->img->PopColor();
[2]	2889
[284]	2890	// This is clumsy. But we neeed to stroke the whole graph frame if it is
	2891	// set to bevel to get the bevel shading on top of the text background
	2892	if( $this->framebevel && $this->doframe && $this->titlebackground_style === 3 ) {
	2893	$this->img->Bevel(1,1,$this->img->width-2,$this->img->height-2,
	2894	$this->framebeveldepth,
	2895	$this->framebevelcolor1,$this->framebevelcolor2);
	2896	if( $this->framebevelborder ) {
	2897	$this->img->SetColor($this->framebevelbordercolor);
	2898	$this->img->Rectangle(0,0,$this->img->width-1,$this->img->height-1);
	2899	}
	2900	}
	2901	}
[2]	2902
[284]	2903	// Stroke title
	2904	$y = $this->title->margin;
	2905	if( $this->title->halign == 'center' ) {
	2906	$this->title->Center(0,$this->img->width,$y);
	2907	}
	2908	elseif( $this->title->halign == 'left' ) {
	2909	$this->title->SetPos($this->title->margin+2,$y);
	2910	}
	2911	elseif( $this->title->halign == 'right' ) {
	2912	$indent = 0;
	2913	if( $this->doshadow ) {
	2914	$indent = $this->shadow_width+2;
	2915	}
	2916	$this->title->SetPos($this->img->width-$this->title->margin-$indent,$y,'right');
	2917	}
	2918	$this->title->Stroke($this->img);
[2]	2919
[284]	2920	// ... and subtitle
	2921	$y += $this->title->GetTextHeight($this->img) + $margin + $this->subtitle->margin;
	2922	if( $this->subtitle->halign == 'center' ) {
	2923	$this->subtitle->Center(0,$this->img->width,$y);
	2924	}
	2925	elseif( $this->subtitle->halign == 'left' ) {
	2926	$this->subtitle->SetPos($this->subtitle->margin+2,$y);
	2927	}
	2928	elseif( $this->subtitle->halign == 'right' ) {
	2929	$indent = 0;
	2930	if( $this->doshadow )
	2931	$indent = $this->shadow_width+2;
	2932	$this->subtitle->SetPos($this->img->width-$this->subtitle->margin-$indent,$y,'right');
	2933	}
	2934	$this->subtitle->Stroke($this->img);
[2]	2935
[284]	2936	// ... and subsubtitle
	2937	$y += $this->subtitle->GetTextHeight($this->img) + $margin + $this->subsubtitle->margin;
	2938	if( $this->subsubtitle->halign == 'center' ) {
	2939	$this->subsubtitle->Center(0,$this->img->width,$y);
	2940	}
	2941	elseif( $this->subsubtitle->halign == 'left' ) {
	2942	$this->subsubtitle->SetPos($this->subsubtitle->margin+2,$y);
	2943	}
	2944	elseif( $this->subsubtitle->halign == 'right' ) {
	2945	$indent = 0;
	2946	if( $this->doshadow )
	2947	$indent = $this->shadow_width+2;
	2948	$this->subsubtitle->SetPos($this->img->width-$this->subsubtitle->margin-$indent,$y,'right');
	2949	}
	2950	$this->subsubtitle->Stroke($this->img);
[2]	2951
[284]	2952	// ... and fancy title
	2953	$this->tabtitle->Stroke($this->img);
	2954
[2]	2955	}
	2956
	2957	function StrokeTexts() {
[284]	2958	// Stroke any user added text objects
	2959	if( $this->texts != null ) {
	2960	for($i=0; $i < count($this->texts); ++$i) {
	2961	$this->texts[$i]->StrokeWithScale($this->img,$this->xscale,$this->yscale);
	2962	}
	2963	}
[2]	2964
[284]	2965	if( $this->y2texts != null && $this->y2scale != null ) {
	2966	for($i=0; $i < count($this->y2texts); ++$i) {
	2967	$this->y2texts[$i]->StrokeWithScale($this->img,$this->xscale,$this->y2scale);
	2968	}
	2969	}
[2]	2970
	2971	}
	2972
	2973	function StrokeTables() {
[284]	2974	if( $this->iTables != null ) {
	2975	$n = count($this->iTables);
	2976	for( $i=0; $i < $n; ++$i ) {
	2977	$this->iTables[$i]->StrokeWithScale($this->img,$this->xscale,$this->yscale);
	2978	}
	2979	}
[2]	2980	}
	2981
	2982	function DisplayClientSideaImageMapAreas() {
[284]	2983	// Debug stuff - display the outline of the image map areas
	2984	$csim='';
	2985	foreach ($this->plots as $p) {
	2986	$csim.= $p->GetCSIMareas();
	2987	}
	2988	$csim .= $this->legend->GetCSIMareas();
	2989	if (preg_match_all("/area shape=\"(\w+)\" coords=\"([0-9\, ]+)\"/", $csim, $coords)) {
	2990	$this->img->SetColor($this->csimcolor);
	2991	$n = count($coords[0]);
	2992	for ($i=0; $i < $n; $i++) {
	2993	if ( $coords[1][$i] == 'poly' ) {
	2994	preg_match_all('/\s([0-9]+)\s,\s([0-9]+)\s,*/',$coords[2][$i],$pts);
	2995	$this->img->SetStartPoint($pts[1][count($pts[0])-1],$pts[2][count($pts[0])-1]);
	2996	$m = count($pts[0]);
	2997	for ($j=0; $j < $m; $j++) {
	2998	$this->img->LineTo($pts[1][$j],$pts[2][$j]);
	2999	}
	3000	} elseif ( $coords[1][$i] == 'rect' ) {
	3001	$pts = preg_split('/,/', $coords[2][$i]);
	3002	$this->img->SetStartPoint($pts[0],$pts[1]);
	3003	$this->img->LineTo($pts[2],$pts[1]);
	3004	$this->img->LineTo($pts[2],$pts[3]);
	3005	$this->img->LineTo($pts[0],$pts[3]);
	3006	$this->img->LineTo($pts[0],$pts[1]);
	3007	}
	3008	}
	3009	}
[2]	3010	}
	3011
	3012	// Text scale offset in world coordinates
	3013	function SetTextScaleOff($aOff) {
[284]	3014	$this->text_scale_off = $aOff;
	3015	$this->xscale->text_scale_off = $aOff;
[2]	3016	}
	3017
	3018	// Text width of bar to be centered in absolute pixels
	3019	function SetTextScaleAbsCenterOff($aOff) {
[284]	3020	$this->text_scale_abscenteroff = $aOff;
[2]	3021	}
	3022
	3023	// Get Y min and max values for added lines
	3024	function GetLinesYMinMax( $aLines ) {
[284]	3025	$n = is_array($aLines) ? count($aLines) : 0;
	3026	if( $n == 0 ) return false;
	3027	$min = $aLines[0]->scaleposition ;
	3028	$max = $min ;
	3029	$flg = false;
	3030	for( $i=0; $i < $n; ++$i ) {
	3031	if( $aLines[$i]->direction == HORIZONTAL ) {
	3032	$flg = true ;
	3033	$v = $aLines[$i]->scaleposition ;
	3034	if( $min > $v ) $min = $v ;
	3035	if( $max < $v ) $max = $v ;
	3036	}
	3037	}
	3038	return $flg ? array($min,$max) : false ;
[2]	3039	}
	3040
	3041	// Get X min and max values for added lines
	3042	function GetLinesXMinMax( $aLines ) {
[284]	3043	$n = is_array($aLines) ? count($aLines) : 0;
	3044	if( $n == 0 ) return false ;
	3045	$min = $aLines[0]->scaleposition ;
	3046	$max = $min ;
	3047	$flg = false;
	3048	for( $i=0; $i < $n; ++$i ) {
	3049	if( $aLines[$i]->direction == VERTICAL ) {
	3050	$flg = true ;
	3051	$v = $aLines[$i]->scaleposition ;
	3052	if( $min > $v ) $min = $v ;
	3053	if( $max < $v ) $max = $v ;
	3054	}
	3055	}
	3056	return $flg ? array($min,$max) : false ;
[2]	3057	}
	3058
	3059	// Get min and max values for all included plots
	3060	function GetPlotsYMinMax($aPlots) {
[284]	3061	$n = count($aPlots);
	3062	$i=0;
	3063	do {
	3064	list($xmax,$max) = $aPlots[$i]->Max();
	3065	} while( ++$i < $n && !is_numeric($max) );
[2]	3066
[284]	3067	$i=0;
	3068	do {
	3069	list($xmin,$min) = $aPlots[$i]->Min();
	3070	} while( ++$i < $n && !is_numeric($min) );
[2]	3071
[284]	3072	if( !is_numeric($min) \|\| !is_numeric($max) ) {
	3073	JpGraphError::RaiseL(25044);//('Cannot use autoscaling since it is impossible to determine a valid min/max value of the Y-axis (only null values).');
	3074	}
	3075
	3076	for($i=0; $i < $n; ++$i ) {
	3077	list($xmax,$ymax)=$aPlots[$i]->Max();
	3078	list($xmin,$ymin)=$aPlots[$i]->Min();
	3079	if (is_numeric($ymax)) $max=max($max,$ymax);
	3080	if (is_numeric($ymin)) $min=min($min,$ymin);
	3081	}
	3082	if( $min == '' ) $min = 0;
	3083	if( $max == '' ) $max = 0;
	3084	if( $min == 0 && $max == 0 ) {
	3085	// Special case if all values are 0
	3086	$min=0;$max=1;
	3087	}
	3088	return array($min,$max);
[2]	3089	}
	3090
[284]	3091	function hasLinePlotAndBarPlot() {
	3092	$has_line = false;
	3093	$has_bar = false;
	3094
	3095	foreach ($this->plots as $plot) {
	3096	if ($plot instanceof LinePlot) {
	3097	$has_line = true;
	3098	}
	3099	if ($plot instanceof BarPlot) {
	3100	$has_bar = true;
	3101	}
	3102	}
	3103
	3104	if ($has_line && $has_bar) {
	3105	return true;
	3106	}
	3107
	3108	return false;
	3109	}
	3110
	3111	function SetTheme($graph_theme) {
	3112
	3113	if (!($this instanceof PieGraph)) {
	3114	if (!$this->isAfterSetScale) {
	3115	JpGraphError::RaiseL(25133);//('Use Graph::SetTheme() after Graph::SetScale().');
	3116	}
	3117	}
	3118
	3119	if ($this->graph_theme) {
	3120	$this->ClearTheme();
	3121	}
	3122	$this->graph_theme = $graph_theme;
	3123	$this->graph_theme->ApplyGraph($this);
	3124	}
	3125
	3126	function ClearTheme() {
	3127	$this->graph_theme = null;
	3128
	3129	$this->isRunningClear = true;
	3130
	3131	$this->__construct(
	3132	$this->inputValues['aWidth'],
	3133	$this->inputValues['aHeight'],
	3134	$this->inputValues['aCachedName'],
	3135	$this->inputValues['aTimeout'],
	3136	$this->inputValues['aInline']
	3137	);
	3138
	3139	if (!($this instanceof PieGraph)) {
	3140	if ($this->isAfterSetScale) {
	3141	$this->SetScale(
	3142	$this->inputValues['aAxisType'],
	3143	$this->inputValues['aYMin'],
	3144	$this->inputValues['aYMax'],
	3145	$this->inputValues['aXMin'],
	3146	$this->inputValues['aXMax']
	3147	);
	3148	}
	3149	}
	3150
	3151	$this->isRunningClear = false;
	3152	}
	3153
	3154	function SetSupersampling($do = false, $scale = 2) {
	3155	if ($do) {
	3156	define('SUPERSAMPLING_SCALE', $scale);
	3157	// $this->img->scale = $scale;
	3158	} else {
	3159	define('SUPERSAMPLING_SCALE', 1);
	3160	//$this->img->scale = 0;
	3161	}
	3162	}
	3163
[2]	3164	} // Class
	3165
	3166	//===================================================
	3167	// CLASS LineProperty
	3168	// Description: Holds properties for a line
	3169	//===================================================
	3170	class LineProperty {
[284]	3171	public $iWeight=1, $iColor='black', $iStyle='solid', $iShow=false;
	3172
	3173	function __construct($aWeight=1,$aColor='black',$aStyle='solid') {
	3174	$this->iWeight = $aWeight;
	3175	$this->iColor = $aColor;
	3176	$this->iStyle = $aStyle;
	3177	}
	3178
[2]	3179	function SetColor($aColor) {
[284]	3180	$this->iColor = $aColor;
[2]	3181	}
[284]	3182
[2]	3183	function SetWeight($aWeight) {
[284]	3184	$this->iWeight = $aWeight;
[2]	3185	}
[284]	3186
[2]	3187	function SetStyle($aStyle) {
[284]	3188	$this->iStyle = $aStyle;
[2]	3189	}
[284]	3190
[2]	3191	function Show($aShow=true) {
[284]	3192	$this->iShow=$aShow;
[2]	3193	}
[284]	3194
[2]	3195	function Stroke($aImg,$aX1,$aY1,$aX2,$aY2) {
[284]	3196	if( $this->iShow ) {
	3197	$aImg->PushColor($this->iColor);
	3198	$oldls = $aImg->line_style;
	3199	$oldlw = $aImg->line_weight;
	3200	$aImg->SetLineWeight($this->iWeight);
	3201	$aImg->SetLineStyle($this->iStyle);
	3202	$aImg->StyleLine($aX1,$aY1,$aX2,$aY2);
	3203	$aImg->PopColor($this->iColor);
	3204	$aImg->line_style = $oldls;
	3205	$aImg->line_weight = $oldlw;
[2]	3206
[284]	3207	}
[2]	3208	}
	3209	}
	3210
[284]	3211	//===================================================
	3212	// CLASS GraphTabTitle
	3213	// Description: Draw "tab" titles on top of graphs
	3214	//===================================================
[2]	3215	class GraphTabTitle extends Text{
	3216	private $corner = 6 , $posx = 7, $posy = 4;
	3217	private $fillcolor='lightyellow',$bordercolor='black';
	3218	private $align = 'left', $width=TABTITLE_WIDTHFIT;
[284]	3219	function __construct() {
	3220	$this->t = '';
	3221	$this->font_style = FS_BOLD;
	3222	$this->hide = true;
	3223	$this->color = 'darkred';
[2]	3224	}
	3225
	3226	function SetColor($aTxtColor,$aFillColor='lightyellow',$aBorderColor='black') {
[284]	3227	$this->color = $aTxtColor;
	3228	$this->fillcolor = $aFillColor;
	3229	$this->bordercolor = $aBorderColor;
[2]	3230	}
	3231
	3232	function SetFillColor($aFillColor) {
[284]	3233	$this->fillcolor = $aFillColor;
[2]	3234	}
	3235
	3236	function SetTabAlign($aAlign) {
[284]	3237	$this->align = $aAlign;
[2]	3238	}
[284]	3239
[2]	3240	function SetWidth($aWidth) {
[284]	3241	$this->width = $aWidth ;
[2]	3242	}
	3243
	3244	function Set($t) {
[284]	3245	$this->t = $t;
	3246	$this->hide = false;
[2]	3247	}
	3248
	3249	function SetCorner($aD) {
[284]	3250	$this->corner = $aD ;
[2]	3251	}
	3252
	3253	function Stroke($aImg,$aDummy1=null,$aDummy2=null) {
[284]	3254	if( $this->hide )
	3255	return;
	3256	$this->boxed = false;
	3257	$w = $this->GetWidth($aImg) + 2*$this->posx;
	3258	$h = $this->GetTextHeight($aImg) + 2*$this->posy;
[2]	3259
[284]	3260	$x = $aImg->left_margin;
	3261	$y = $aImg->top_margin;
[2]	3262
[284]	3263	if( $this->width === TABTITLE_WIDTHFIT ) {
	3264	if( $this->align == 'left' ) {
	3265	$p = array($x, $y,
	3266	$x, $y-$h+$this->corner,
	3267	$x + $this->corner,$y-$h,
	3268	$x + $w - $this->corner, $y-$h,
	3269	$x + $w, $y-$h+$this->corner,
	3270	$x + $w, $y);
	3271	}
	3272	elseif( $this->align == 'center' ) {
	3273	$x += round($aImg->plotwidth/2) - round($w/2);
	3274	$p = array($x, $y,
	3275	$x, $y-$h+$this->corner,
	3276	$x + $this->corner, $y-$h,
	3277	$x + $w - $this->corner, $y-$h,
	3278	$x + $w, $y-$h+$this->corner,
	3279	$x + $w, $y);
	3280	}
	3281	else {
	3282	$x += $aImg->plotwidth -$w;
	3283	$p = array($x, $y,
	3284	$x, $y-$h+$this->corner,
	3285	$x + $this->corner,$y-$h,
	3286	$x + $w - $this->corner, $y-$h,
	3287	$x + $w, $y-$h+$this->corner,
	3288	$x + $w, $y);
	3289	}
	3290	}
	3291	else {
	3292	if( $this->width === TABTITLE_WIDTHFULL ) {
	3293	$w = $aImg->plotwidth ;
	3294	}
	3295	else {
	3296	$w = $this->width ;
	3297	}
[2]	3298
[284]	3299	// Make the tab fit the width of the plot area
	3300	$p = array($x, $y,
	3301	$x, $y-$h+$this->corner,
	3302	$x + $this->corner,$y-$h,
	3303	$x + $w - $this->corner, $y-$h,
	3304	$x + $w, $y-$h+$this->corner,
	3305	$x + $w, $y);
[2]	3306
[284]	3307	}
	3308	if( $this->halign == 'left' ) {
	3309	$aImg->SetTextAlign('left','bottom');
	3310	$x += $this->posx;
	3311	$y -= $this->posy;
	3312	}
	3313	elseif( $this->halign == 'center' ) {
	3314	$aImg->SetTextAlign('center','bottom');
	3315	$x += $w/2;
	3316	$y -= $this->posy;
	3317	}
	3318	else {
	3319	$aImg->SetTextAlign('right','bottom');
	3320	$x += $w - $this->posx;
	3321	$y -= $this->posy;
	3322	}
[2]	3323
[284]	3324	$aImg->SetColor($this->fillcolor);
	3325	$aImg->FilledPolygon($p);
	3326
	3327	$aImg->SetColor($this->bordercolor);
	3328	$aImg->Polygon($p,true);
	3329
	3330	$aImg->SetColor($this->color);
	3331	$aImg->SetFont($this->font_family,$this->font_style,$this->font_size);
	3332	$aImg->StrokeText($x,$y,$this->t,0,'center');
[2]	3333	}
	3334
	3335	}
	3336
	3337	//===================================================
	3338	// CLASS SuperScriptText
	3339	// Description: Format a superscript text
	3340	//===================================================
	3341	class SuperScriptText extends Text {
[284]	3342	private $iSuper='';
	3343	private $sfont_family='',$sfont_style='',$sfont_size=8;
[2]	3344	private $iSuperMargin=2,$iVertOverlap=4,$iSuperScale=0.65;
	3345	private $iSDir=0;
	3346	private $iSimple=false;
	3347
[284]	3348	function __construct($aTxt='',$aSuper='',$aXAbsPos=0,$aYAbsPos=0) {
	3349	parent::__construct($aTxt,$aXAbsPos,$aYAbsPos);
	3350	$this->iSuper = $aSuper;
[2]	3351	}
	3352
	3353	function FromReal($aVal,$aPrecision=2) {
[284]	3354	// Convert a floating point number to scientific notation
	3355	$neg=1.0;
	3356	if( $aVal < 0 ) {
	3357	$neg = -1.0;
	3358	$aVal = -$aVal;
	3359	}
	3360
	3361	$l = floor(log10($aVal));
	3362	$a = sprintf("%0.".$aPrecision."f",round($aVal / pow(10,$l),$aPrecision));
	3363	$a *= $neg;
	3364	if( $this->iSimple && ($a == 1 \|\| $a==-1) ) $a = '';
	3365
	3366	if( $a != '' ) {
	3367	$this->t = $a.' * 10';
	3368	}
	3369	else {
	3370	if( $neg == 1 ) {
	3371	$this->t = '10';
	3372	}
	3373	else {
	3374	$this->t = '-10';
	3375	}
	3376	}
	3377	$this->iSuper = $l;
[2]	3378	}
	3379
[284]	3380	function Set($aTxt,$aSuper='') {
	3381	$this->t = $aTxt;
	3382	$this->iSuper = $aSuper;
[2]	3383	}
	3384
	3385	function SetSuperFont($aFontFam,$aFontStyle=FS_NORMAL,$aFontSize=8) {
[284]	3386	$this->sfont_family = $aFontFam;
	3387	$this->sfont_style = $aFontStyle;
	3388	$this->sfont_size = $aFontSize;
[2]	3389	}
	3390
	3391	// Total width of text
	3392	function GetWidth($aImg) {
[284]	3393	$aImg->SetFont($this->font_family,$this->font_style,$this->font_size);
	3394	$w = $aImg->GetTextWidth($this->t);
	3395	$aImg->SetFont($this->sfont_family,$this->sfont_style,$this->sfont_size);
	3396	$w += $aImg->GetTextWidth($this->iSuper);
	3397	$w += $this->iSuperMargin;
	3398	return $w;
[2]	3399	}
[284]	3400
[2]	3401	// Hight of font (approximate the height of the text)
	3402	function GetFontHeight($aImg) {
[284]	3403	$aImg->SetFont($this->font_family,$this->font_style,$this->font_size);
	3404	$h = $aImg->GetFontHeight();
	3405	$aImg->SetFont($this->sfont_family,$this->sfont_style,$this->sfont_size);
	3406	$h += $aImg->GetFontHeight();
	3407	return $h;
[2]	3408	}
	3409
	3410	// Hight of text
	3411	function GetTextHeight($aImg) {
[284]	3412	$aImg->SetFont($this->font_family,$this->font_style,$this->font_size);
	3413	$h = $aImg->GetTextHeight($this->t);
	3414	$aImg->SetFont($this->sfont_family,$this->sfont_style,$this->sfont_size);
	3415	$h += $aImg->GetTextHeight($this->iSuper);
	3416	return $h;
[2]	3417	}
	3418
	3419	function Stroke($aImg,$ax=-1,$ay=-1) {
[284]	3420
[2]	3421	// To position the super script correctly we need different
[284]	3422	// cases to handle the alignmewnt specified since that will
	3423	// determine how we can interpret the x,y coordinates
[2]	3424
[284]	3425	$w = parent::GetWidth($aImg);
	3426	$h = parent::GetTextHeight($aImg);
	3427	switch( $this->valign ) {
	3428	case 'top':
	3429	$sy = $this->y;
	3430	break;
	3431	case 'center':
	3432	$sy = $this->y - $h/2;
	3433	break;
	3434	case 'bottom':
	3435	$sy = $this->y - $h;
	3436	break;
	3437	default:
	3438	JpGraphError::RaiseL(25052);//('PANIC: Internal error in SuperScript::Stroke(). Unknown vertical alignment for text');
	3439	break;
	3440	}
[2]	3441
[284]	3442	switch( $this->halign ) {
	3443	case 'left':
	3444	$sx = $this->x + $w;
	3445	break;
	3446	case 'center':
	3447	$sx = $this->x + $w/2;
	3448	break;
	3449	case 'right':
	3450	$sx = $this->x;
	3451	break;
	3452	default:
	3453	JpGraphError::RaiseL(25053);//('PANIC: Internal error in SuperScript::Stroke(). Unknown horizontal alignment for text');
	3454	break;
	3455	}
[2]	3456
[284]	3457	$sx += $this->iSuperMargin;
	3458	$sy += $this->iVertOverlap;
[2]	3459
[284]	3460	// Should we automatically determine the font or
	3461	// has the user specified it explicetly?
	3462	if( $this->sfont_family == '' ) {
	3463	if( $this->font_family <= FF_FONT2 ) {
	3464	if( $this->font_family == FF_FONT0 ) {
	3465	$sff = FF_FONT0;
	3466	}
	3467	elseif( $this->font_family == FF_FONT1 ) {
	3468	if( $this->font_style == FS_NORMAL ) {
	3469	$sff = FF_FONT0;
	3470	}
	3471	else {
	3472	$sff = FF_FONT1;
	3473	}
	3474	}
	3475	else {
	3476	$sff = FF_FONT1;
	3477	}
	3478	$sfs = $this->font_style;
	3479	$sfz = $this->font_size;
	3480	}
	3481	else {
	3482	// TTF fonts
	3483	$sff = $this->font_family;
	3484	$sfs = $this->font_style;
	3485	$sfz = floor($this->font_size*$this->iSuperScale);
	3486	if( $sfz < 8 ) $sfz = 8;
	3487	}
	3488	$this->sfont_family = $sff;
	3489	$this->sfont_style = $sfs;
	3490	$this->sfont_size = $sfz;
	3491	}
	3492	else {
	3493	$sff = $this->sfont_family;
	3494	$sfs = $this->sfont_style;
	3495	$sfz = $this->sfont_size;
	3496	}
[2]	3497
[284]	3498	parent::Stroke($aImg,$ax,$ay);
[2]	3499
[284]	3500	// For the builtin fonts we need to reduce the margins
	3501	// since the bounding bx reported for the builtin fonts
	3502	// are much larger than for the TTF fonts.
	3503	if( $sff <= FF_FONT2 ) {
	3504	$sx -= 2;
	3505	$sy += 3;
	3506	}
[2]	3507
[284]	3508	$aImg->SetTextAlign('left','bottom');
	3509	$aImg->SetFont($sff,$sfs,$sfz);
	3510	$aImg->PushColor($this->color);
	3511	$aImg->StrokeText($sx,$sy,$this->iSuper,$this->iSDir,'left');
	3512	$aImg->PopColor();
[2]	3513	}
	3514	}
	3515
	3516
	3517	//===================================================
	3518	// CLASS Grid
	3519	// Description: responsible for drawing grid lines in graph
	3520	//===================================================
	3521	class Grid {
	3522	protected $img;
	3523	protected $scale;
[284]	3524	protected $majorcolor='#CCCCCC',$minorcolor='#DDDDDD';
	3525	protected $majortype='solid',$minortype='solid';
	3526	protected $show=false, $showMinor=false,$majorweight=1,$minorweight=1;
[2]	3527	protected $fill=false,$fillcolor=array('#EFEFEF','#BBCCFF');
[284]	3528
	3529	function __construct($aAxis) {
	3530	$this->scale = $aAxis->scale;
	3531	$this->img = $aAxis->img;
[2]	3532	}
[284]	3533
[2]	3534	function SetColor($aMajColor,$aMinColor=false) {
[284]	3535	$this->majorcolor=$aMajColor;
	3536	if( $aMinColor === false ) {
	3537	$aMinColor = $aMajColor ;
	3538	}
	3539	$this->minorcolor = $aMinColor;
[2]	3540	}
[284]	3541
	3542	function SetWeight($aMajorWeight,$aMinorWeight=1) {
	3543	$this->majorweight=$aMajorWeight;
	3544	$this->minorweight=$aMinorWeight;
[2]	3545	}
[284]	3546
[2]	3547	// Specify if grid should be dashed, dotted or solid
[284]	3548	function SetLineStyle($aMajorType,$aMinorType='solid') {
	3549	$this->majortype = $aMajorType;
	3550	$this->minortype = $aMinorType;
[2]	3551	}
[284]	3552
	3553	function SetStyle($aMajorType,$aMinorType='solid') {
	3554	$this->SetLineStyle($aMajorType,$aMinorType);
	3555	}
	3556
[2]	3557	// Decide if both major and minor grid should be displayed
	3558	function Show($aShowMajor=true,$aShowMinor=false) {
[284]	3559	$this->show=$aShowMajor;
	3560	$this->showMinor=$aShowMinor;
[2]	3561	}
[284]	3562
[2]	3563	function SetFill($aFlg=true,$aColor1='lightgray',$aColor2='lightblue') {
[284]	3564	$this->fill = $aFlg;
	3565	$this->fillcolor = array( $aColor1, $aColor2 );
[2]	3566	}
[284]	3567
[2]	3568	// Display the grid
	3569	function Stroke() {
[284]	3570	if( $this->showMinor && !$this->scale->textscale ) {
	3571	$this->DoStroke($this->scale->ticks->ticks_pos,$this->minortype,$this->minorcolor,$this->minorweight);
	3572	$this->DoStroke($this->scale->ticks->maj_ticks_pos,$this->majortype,$this->majorcolor,$this->majorweight);
	3573	}
	3574	else {
	3575	$this->DoStroke($this->scale->ticks->maj_ticks_pos,$this->majortype,$this->majorcolor,$this->majorweight);
	3576	}
	3577	}
[267]	3578
[284]	3579	//--------------
	3580	// Private methods
[2]	3581	// Draw the grid
[284]	3582	function DoStroke($aTicksPos,$aType,$aColor,$aWeight) {
	3583	if( !$this->show ) return;
	3584	$nbrgrids = count($aTicksPos);
[2]	3585
[284]	3586	if( $this->scale->type == 'y' ) {
	3587	$xl=$this->img->left_margin;
	3588	$xr=$this->img->width-$this->img->right_margin;
[2]	3589
[284]	3590	if( $this->fill ) {
	3591	// Draw filled areas
	3592	$y2 = !empty($aTicksPos) ? $aTicksPos[0] : null;
	3593	$i=1;
	3594	while( $i < $nbrgrids ) {
	3595	$y1 = $y2;
	3596	$y2 = $aTicksPos[$i++];
	3597	$this->img->SetColor($this->fillcolor[$i & 1]);
	3598	$this->img->FilledRectangle($xl,$y1,$xr,$y2);
	3599	}
	3600	}
[2]	3601
[284]	3602	$this->img->SetColor($aColor);
	3603	$this->img->SetLineWeight($aWeight);
[2]	3604
[284]	3605	// Draw grid lines
	3606	switch( $aType ) {
	3607	case 'solid': $style = LINESTYLE_SOLID; break;
	3608	case 'dotted': $style = LINESTYLE_DOTTED; break;
	3609	case 'dashed': $style = LINESTYLE_DASHED; break;
	3610	case 'longdashed': $style = LINESTYLE_LONGDASH; break;
	3611	default:
	3612	$style = LINESTYLE_SOLID; break;
	3613	}
[2]	3614
[284]	3615	for($i=0; $i < $nbrgrids; ++$i) {
	3616	$y=$aTicksPos[$i];
	3617	$this->img->StyleLine($xl,$y,$xr,$y,$style,true);
	3618	}
	3619	}
	3620	elseif( $this->scale->type == 'x' ) {
	3621	$yu=$this->img->top_margin;
	3622	$yl=$this->img->height-$this->img->bottom_margin;
	3623	$limit=$this->img->width-$this->img->right_margin;
[2]	3624
[284]	3625	if( $this->fill ) {
	3626	// Draw filled areas
	3627	$x2 = $aTicksPos[0];
	3628	$i=1;
	3629	while( $i < $nbrgrids ) {
	3630	$x1 = $x2;
	3631	$x2 = min($aTicksPos[$i++],$limit) ;
	3632	$this->img->SetColor($this->fillcolor[$i & 1]);
	3633	$this->img->FilledRectangle($x1,$yu,$x2,$yl);
	3634	}
	3635	}
[2]	3636
[284]	3637	$this->img->SetColor($aColor);
	3638	$this->img->SetLineWeight($aWeight);
	3639
	3640	// We must also test for limit since we might have
	3641	// an offset and the number of ticks is calculated with
	3642	// assumption offset==0 so we might end up drawing one
	3643	// to many gridlines
	3644	$i=0;
	3645	while( $i<count($aTicksPos) && ($x=$aTicksPos[$i]) <= $limit ) {
	3646	if ( $aType == 'solid' ) $this->img->Line($x,$yl,$x,$yu);
	3647	elseif( $aType == 'dotted' ) $this->img->DashedLineForGrid($x,$yl,$x,$yu,1,6);
	3648	elseif( $aType == 'dashed' ) $this->img->DashedLineForGrid($x,$yl,$x,$yu,2,4);
	3649	elseif( $aType == 'longdashed' ) $this->img->DashedLineForGrid($x,$yl,$x,$yu,8,6);
	3650	++$i;
	3651	}
	3652	}
	3653	else {
	3654	JpGraphError::RaiseL(25054,$this->scale->type);//('Internal error: Unknown grid axis ['.$this->scale->type.']');
	3655	}
	3656	return true;
[2]	3657	}
	3658	} // Class
	3659
	3660	//===================================================
	3661	// CLASS Axis
	3662	// Description: Defines X and Y axis. Notes that at the
	3663	// moment the code is not really good since the axis on
	3664	// several occasion must know wheter it's an X or Y axis.
	3665	// This was a design decision to make the code easier to
[284]	3666	// follow.
[2]	3667	//===================================================
	3668	class AxisPrototype {
[284]	3669	public $scale=null;
[2]	3670	public $img=null;
	3671	public $hide=false,$hide_labels=false;
	3672	public $title=null;
[284]	3673	public $font_family=FF_DEFAULT,$font_style=FS_NORMAL,$font_size=8,$label_angle=0;
[2]	3674	public $tick_step=1;
	3675	public $pos = false;
	3676	public $ticks_label = array();
	3677
	3678	protected $weight=1;
	3679	protected $color=array(0,0,0),$label_color=array(0,0,0);
	3680	protected $ticks_label_colors=null;
	3681	protected $show_first_label=true,$show_last_label=true;
	3682	protected $label_step=1; // Used by a text axis to specify what multiple of major steps
	3683	// should be labeled.
	3684	protected $labelPos=0; // Which side of the axis should the labels be?
	3685	protected $title_adjust,$title_margin,$title_side=SIDE_LEFT;
[284]	3686	protected $tick_label_margin=5;
[2]	3687	protected $label_halign = '',$label_valign = '', $label_para_align='left';
	3688	protected $hide_line=false;
	3689	protected $iDeltaAbsPos=0;
	3690
[284]	3691	function __construct($img,$aScale,$color = array(0,0,0)) {
	3692	$this->img = $img;
	3693	$this->scale = $aScale;
	3694	$this->color = $color;
	3695	$this->title=new Text('');
	3696
	3697	if( $aScale->type == 'y' ) {
	3698	$this->title_margin = 25;
	3699	$this->title_adjust = 'middle';
	3700	$this->title->SetOrientation(90);
	3701	$this->tick_label_margin=7;
	3702	$this->labelPos=SIDE_LEFT;
	3703	}
	3704	else {
	3705	$this->title_margin = 5;
	3706	$this->title_adjust = 'high';
	3707	$this->title->SetOrientation(0);
	3708	$this->tick_label_margin=5;
	3709	$this->labelPos=SIDE_DOWN;
	3710	$this->title_side=SIDE_DOWN;
	3711	}
[2]	3712	}
[284]	3713
[2]	3714	function SetLabelFormat($aFormStr) {
[284]	3715	$this->scale->ticks->SetLabelFormat($aFormStr);
[2]	3716	}
	3717
	3718	function SetLabelFormatString($aFormStr,$aDate=false) {
[284]	3719	$this->scale->ticks->SetLabelFormat($aFormStr,$aDate);
[2]	3720	}
[284]	3721
[2]	3722	function SetLabelFormatCallback($aFuncName) {
[284]	3723	$this->scale->ticks->SetFormatCallback($aFuncName);
[2]	3724	}
	3725
[284]	3726	function SetLabelAlign($aHAlign,$aVAlign='top',$aParagraphAlign='left') {
	3727	$this->label_halign = $aHAlign;
	3728	$this->label_valign = $aVAlign;
	3729	$this->label_para_align = $aParagraphAlign;
	3730	}
[2]	3731
	3732	// Don't display the first label
	3733	function HideFirstTickLabel($aShow=false) {
[284]	3734	$this->show_first_label=$aShow;
[2]	3735	}
	3736
	3737	function HideLastTickLabel($aShow=false) {
[284]	3738	$this->show_last_label=$aShow;
[2]	3739	}
	3740
	3741	// Manually specify the major and (optional) minor tick position and labels
	3742	function SetTickPositions($aMajPos,$aMinPos=NULL,$aLabels=NULL) {
[284]	3743	$this->scale->ticks->SetTickPositions($aMajPos,$aMinPos,$aLabels);
[2]	3744	}
	3745
	3746	// Manually specify major tick positions and optional labels
	3747	function SetMajTickPositions($aMajPos,$aLabels=NULL) {
[284]	3748	$this->scale->ticks->SetTickPositions($aMajPos,NULL,$aLabels);
[2]	3749	}
	3750
	3751	// Hide minor or major tick marks
	3752	function HideTicks($aHideMinor=true,$aHideMajor=true) {
[284]	3753	$this->scale->ticks->SupressMinorTickMarks($aHideMinor);
	3754	$this->scale->ticks->SupressTickMarks($aHideMajor);
[2]	3755	}
	3756
	3757	// Hide zero label
	3758	function HideZeroLabel($aFlag=true) {
[284]	3759	$this->scale->ticks->SupressZeroLabel();
[2]	3760	}
[284]	3761
[2]	3762	function HideFirstLastLabel() {
[284]	3763	// The two first calls to ticks method will supress
	3764	// automatically generated scale values. However, that
	3765	// will not affect manually specified value, e.g text-scales.
	3766	// therefor we also make a kludge here to supress manually
	3767	// specified scale labels.
	3768	$this->scale->ticks->SupressLast();
	3769	$this->scale->ticks->SupressFirst();
	3770	$this->show_first_label = false;
	3771	$this->show_last_label = false;
[2]	3772	}
[284]	3773
[2]	3774	// Hide the axis
	3775	function Hide($aHide=true) {
[284]	3776	$this->hide=$aHide;
[2]	3777	}
	3778
	3779	// Hide the actual axis-line, but still print the labels
	3780	function HideLine($aHide=true) {
[284]	3781	$this->hide_line = $aHide;
[2]	3782	}
	3783
	3784	function HideLabels($aHide=true) {
[284]	3785	$this->hide_labels = $aHide;
[2]	3786	}
	3787
	3788	// Weight of axis
	3789	function SetWeight($aWeight) {
[284]	3790	$this->weight = $aWeight;
[2]	3791	}
	3792
	3793	// Axis color
	3794	function SetColor($aColor,$aLabelColor=false) {
[284]	3795	$this->color = $aColor;
	3796	if( !$aLabelColor ) $this->label_color = $aColor;
	3797	else $this->label_color = $aLabelColor;
[2]	3798	}
[284]	3799
[2]	3800	// Title on axis
[284]	3801	function SetTitle($aTitle,$aAdjustAlign='high') {
	3802	$this->title->Set($aTitle);
	3803	$this->title_adjust=$aAdjustAlign;
[2]	3804	}
[284]	3805
[2]	3806	// Specify distance from the axis
	3807	function SetTitleMargin($aMargin) {
[284]	3808	$this->title_margin=$aMargin;
[2]	3809	}
[284]	3810
[2]	3811	// Which side of the axis should the axis title be?
	3812	function SetTitleSide($aSideOfAxis) {
[284]	3813	$this->title_side = $aSideOfAxis;
[2]	3814	}
	3815
	3816	function SetTickSide($aDir) {
[284]	3817	$this->scale->ticks->SetSide($aDir);
[2]	3818	}
[284]	3819
	3820	function SetTickSize($aMajSize,$aMinSize=3) {
	3821	$this->scale->ticks->SetSize($aMajSize,$aMinSize=3);
	3822	}
	3823
[2]	3824	// Specify text labels for the ticks. One label for each data point
	3825	function SetTickLabels($aLabelArray,$aLabelColorArray=null) {
[284]	3826	$this->ticks_label = $aLabelArray;
	3827	$this->ticks_label_colors = $aLabelColorArray;
[2]	3828	}
	3829
	3830	function SetLabelMargin($aMargin) {
[284]	3831	$this->tick_label_margin=$aMargin;
[2]	3832	}
[284]	3833
[267]	3834	// Specify that every $step of the ticks should be displayed starting
	3835	// at $start
[284]	3836	function SetTextTickInterval($aStep,$aStart=0) {
	3837	$this->scale->ticks->SetTextLabelStart($aStart);
	3838	$this->tick_step=$aStep;
[267]	3839	}
[265]	3840
[284]	3841	// Specify that every $step tick mark should have a label
[2]	3842	// should be displayed starting
	3843	function SetTextLabelInterval($aStep) {
[284]	3844	if( $aStep < 1 ) {
	3845	JpGraphError::RaiseL(25058);//(" Text label interval must be specified >= 1.");
	3846	}
	3847	$this->label_step=$aStep;
[2]	3848	}
[284]	3849
[2]	3850	function SetLabelSide($aSidePos) {
[284]	3851	$this->labelPos=$aSidePos;
[2]	3852	}
	3853
	3854	// Set the font
	3855	function SetFont($aFamily,$aStyle=FS_NORMAL,$aSize=10) {
[284]	3856	$this->font_family = $aFamily;
	3857	$this->font_style = $aStyle;
	3858	$this->font_size = $aSize;
[2]	3859	}
	3860
	3861	// Position for axis line on the "other" scale
	3862	function SetPos($aPosOnOtherScale) {
[284]	3863	$this->pos=$aPosOnOtherScale;
[2]	3864	}
	3865
[284]	3866	// Set the position of the axis to be X-pixels delta to the right
[2]	3867	// of the max X-position (used to position the multiple Y-axis)
	3868	function SetPosAbsDelta($aDelta) {
[284]	3869	$this->iDeltaAbsPos=$aDelta;
[2]	3870	}
[284]	3871
[2]	3872	// Specify the angle for the tick labels
	3873	function SetLabelAngle($aAngle) {
[284]	3874	$this->label_angle = $aAngle;
	3875	}
[2]	3876
	3877	} // Class
	3878
	3879
	3880	//===================================================
	3881	// CLASS Axis
	3882	// Description: Defines X and Y axis. Notes that at the
	3883	// moment the code is not really good since the axis on
	3884	// several occasion must know wheter it's an X or Y axis.
	3885	// This was a design decision to make the code easier to
[284]	3886	// follow.
[2]	3887	//===================================================
	3888	class Axis extends AxisPrototype {
	3889
[284]	3890	function __construct($img,$aScale,$color='black') {
	3891	parent::__construct($img,$aScale,$color);
[2]	3892	}
[284]	3893
[2]	3894	// Stroke the axis.
[284]	3895	function Stroke($aOtherAxisScale,$aStrokeLabels=true) {
	3896	if( $this->hide )
	3897	return;
	3898	if( is_numeric($this->pos) ) {
	3899	$pos=$aOtherAxisScale->Translate($this->pos);
	3900	}
	3901	else { // Default to minimum of other scale if pos not set
	3902	if( ($aOtherAxisScale->GetMinVal() >= 0 && $this->pos==false) \|\| $this->pos == 'min' ) {
	3903	$pos = $aOtherAxisScale->scale_abs[0];
	3904	}
	3905	elseif($this->pos == "max") {
	3906	$pos = $aOtherAxisScale->scale_abs[1];
	3907	}
	3908	else { // If negative set x-axis at 0
	3909	$this->pos=0;
	3910	$pos=$aOtherAxisScale->Translate(0);
	3911	}
	3912	}
[2]	3913
[284]	3914	$pos += $this->iDeltaAbsPos;
	3915	$this->img->SetLineWeight($this->weight);
	3916	$this->img->SetColor($this->color);
	3917	$this->img->SetFont($this->font_family,$this->font_style,$this->font_size);
	3918
	3919	if( $this->scale->type == "x" ) {
	3920	if( !$this->hide_line ) {
	3921	// Stroke X-axis
	3922	$this->img->FilledRectangle(
	3923	$this->img->left_margin,
	3924	$pos,
	3925	$this->img->width - $this->img->right_margin,
	3926	$pos + $this->weight-1
	3927	);
	3928	}
	3929	if( $this->title_side == SIDE_DOWN ) {
	3930	$y = $pos + $this->img->GetFontHeight() + $this->title_margin + $this->title->margin;
	3931	$yalign = 'top';
	3932	}
	3933	else {
	3934	$y = $pos - $this->img->GetFontHeight() - $this->title_margin - $this->title->margin;
	3935	$yalign = 'bottom';
	3936	}
	3937
	3938	if( $this->title_adjust=='high' ) {
	3939	$this->title->SetPos($this->img->width-$this->img->right_margin,$y,'right',$yalign);
	3940	}
	3941	elseif( $this->title_adjust=='middle' \|\| $this->title_adjust=='center' ) {
	3942	$this->title->SetPos(($this->img->width-$this->img->left_margin-$this->img->right_margin)/2+$this->img->left_margin,$y,'center',$yalign);
	3943	}
	3944	elseif($this->title_adjust=='low') {
	3945	$this->title->SetPos($this->img->left_margin,$y,'left',$yalign);
	3946	}
	3947	else {
	3948	JpGraphError::RaiseL(25060,$this->title_adjust);//('Unknown alignment specified for X-axis title. ('.$this->title_adjust.')');
	3949	}
	3950	}
	3951	elseif( $this->scale->type == "y" ) {
	3952	// Add line weight to the height of the axis since
	3953	// the x-axis could have a width>1 and we want the axis to fit nicely together.
	3954	if( !$this->hide_line ) {
	3955	// Stroke Y-axis
	3956	$this->img->FilledRectangle(
	3957	$pos - $this->weight + 1,
	3958	$this->img->top_margin,
	3959	$pos,
	3960	$this->img->height - $this->img->bottom_margin + $this->weight - 1
	3961	);
	3962	}
	3963
	3964	$x=$pos ;
	3965	if( $this->title_side == SIDE_LEFT ) {
	3966	$x -= $this->title_margin;
	3967	$x -= $this->title->margin;
	3968	$halign = 'right';
	3969	}
	3970	else {
	3971	$x += $this->title_margin;
	3972	$x += $this->title->margin;
	3973	$halign = 'left';
	3974	}
	3975	// If the user has manually specified an hor. align
	3976	// then we override the automatic settings with this
	3977	// specifed setting. Since default is 'left' we compare
	3978	// with that. (This means a manually set 'left' align
	3979	// will have no effect.)
	3980	if( $this->title->halign != 'left' ) {
	3981	$halign = $this->title->halign;
	3982	}
	3983	if( $this->title_adjust == 'high' ) {
	3984	$this->title->SetPos($x,$this->img->top_margin,$halign,'top');
	3985	}
	3986	elseif($this->title_adjust=='middle' \|\| $this->title_adjust=='center') {
	3987	$this->title->SetPos($x,($this->img->height-$this->img->top_margin-$this->img->bottom_margin)/2+$this->img->top_margin,$halign,"center");
	3988	}
	3989	elseif($this->title_adjust=='low') {
	3990	$this->title->SetPos($x,$this->img->height-$this->img->bottom_margin,$halign,'bottom');
	3991	}
	3992	else {
	3993	JpGraphError::RaiseL(25061,$this->title_adjust);//('Unknown alignment specified for Y-axis title. ('.$this->title_adjust.')');
	3994	}
	3995	}
	3996	$this->scale->ticks->Stroke($this->img,$this->scale,$pos);
	3997	if( $aStrokeLabels ) {
	3998	if( !$this->hide_labels ) {
	3999	$this->StrokeLabels($pos);
	4000	}
	4001	$this->title->Stroke($this->img);
	4002	}
[2]	4003	}
	4004
[284]	4005	//---------------
	4006	// PRIVATE METHODS
[2]	4007	// Draw all the tick labels on major tick marks
	4008	function StrokeLabels($aPos,$aMinor=false,$aAbsLabel=false) {
	4009
[284]	4010	if( is_array($this->label_color) && count($this->label_color) > 3 ) {
	4011	$this->ticks_label_colors = $this->label_color;
	4012	$this->img->SetColor($this->label_color[0]);
	4013	}
	4014	else {
	4015	$this->img->SetColor($this->label_color);
	4016	}
	4017	$this->img->SetFont($this->font_family,$this->font_style,$this->font_size);
	4018	$yoff=$this->img->GetFontHeight()/2;
[2]	4019
[284]	4020	// Only draw labels at major tick marks
	4021	$nbr = count($this->scale->ticks->maj_ticks_label);
[2]	4022
[284]	4023	// We have the option to not-display the very first mark
	4024	// (Usefull when the first label might interfere with another
	4025	// axis.)
	4026	$i = $this->show_first_label ? 0 : 1 ;
	4027	if( !$this->show_last_label ) {
	4028	--$nbr;
	4029	}
	4030	// Now run through all labels making sure we don't overshoot the end
	4031	// of the scale.
	4032	$ncolor=0;
	4033	if( isset($this->ticks_label_colors) ) {
	4034	$ncolor=count($this->ticks_label_colors);
	4035	}
	4036	while( $i < $nbr ) {
	4037	// $tpos holds the absolute text position for the label
	4038	$tpos=$this->scale->ticks->maj_ticklabels_pos[$i];
[2]	4039
[284]	4040	// Note. the $limit is only used for the x axis since we
	4041	// might otherwise overshoot if the scale has been centered
	4042	// This is due to us "loosing" the last tick mark if we center.
	4043	if( $this->scale->type == 'x' && $tpos > $this->img->width-$this->img->right_margin+1 ) {
	4044	return;
	4045	}
	4046	// we only draw every $label_step label
	4047	if( ($i % $this->label_step)==0 ) {
[2]	4048
[284]	4049	// Set specific label color if specified
	4050	if( $ncolor > 0 ) {
	4051	$this->img->SetColor($this->ticks_label_colors[$i % $ncolor]);
	4052	}
[2]	4053
[284]	4054	// If the label has been specified use that and in other case
	4055	// just label the mark with the actual scale value
	4056	$m=$this->scale->ticks->GetMajor();
	4057
	4058	// ticks_label has an entry for each data point and is the array
	4059	// that holds the labels set by the user. If the user hasn't
	4060	// specified any values we use whats in the automatically asigned
	4061	// labels in the maj_ticks_label
	4062	if( isset($this->ticks_label[$i*$m]) ) {
	4063	$label=$this->ticks_label[$i*$m];
	4064	}
	4065	else {
	4066	if( $aAbsLabel ) {
	4067	$label=abs($this->scale->ticks->maj_ticks_label[$i]);
	4068	}
	4069	else {
	4070	$label=$this->scale->ticks->maj_ticks_label[$i];
	4071	}
	4072
	4073	// We number the scale from 1 and not from 0 so increase by one
	4074	if( $this->scale->textscale &&
	4075	$this->scale->ticks->label_formfunc == '' &&
	4076	! $this->scale->ticks->HaveManualLabels() ) {
	4077
	4078	++$label;
	4079
	4080	}
	4081	}
	4082
	4083	if( $this->scale->type == "x" ) {
	4084	if( $this->labelPos == SIDE_DOWN ) {
	4085	if( $this->label_angle==0 \|\| $this->label_angle==90 ) {
	4086	if( $this->label_halign=='' && $this->label_valign=='') {
	4087	$this->img->SetTextAlign('center','top');
	4088	}
	4089	else {
	4090	$this->img->SetTextAlign($this->label_halign,$this->label_valign);
	4091	}
	4092
	4093	}
	4094	else {
	4095	if( $this->label_halign=='' && $this->label_valign=='') {
	4096	$this->img->SetTextAlign("right","top");
	4097	}
	4098	else {
	4099	$this->img->SetTextAlign($this->label_halign,$this->label_valign);
	4100	}
	4101	}
	4102	$this->img->StrokeText($tpos,$aPos+$this->tick_label_margin,$label,
	4103	$this->label_angle,$this->label_para_align);
	4104	}
	4105	else {
	4106	if( $this->label_angle==0 \|\| $this->label_angle==90 ) {
	4107	if( $this->label_halign=='' && $this->label_valign=='') {
	4108	$this->img->SetTextAlign("center","bottom");
	4109	}
	4110	else {
	4111	$this->img->SetTextAlign($this->label_halign,$this->label_valign);
	4112	}
	4113	}
	4114	else {
	4115	if( $this->label_halign=='' && $this->label_valign=='') {
	4116	$this->img->SetTextAlign("right","bottom");
	4117	}
	4118	else {
	4119	$this->img->SetTextAlign($this->label_halign,$this->label_valign);
	4120	}
	4121	}
	4122	$this->img->StrokeText($tpos,$aPos-$this->tick_label_margin-1,$label,
	4123	$this->label_angle,$this->label_para_align);
	4124	}
	4125	}
	4126	else {
	4127	// scale->type == "y"
	4128	//if( $this->label_angle!=0 )
	4129	//JpGraphError::Raise(" Labels at an angle are not supported on Y-axis");
	4130	if( $this->labelPos == SIDE_LEFT ) { // To the left of y-axis
	4131	if( $this->label_halign=='' && $this->label_valign=='') {
	4132	$this->img->SetTextAlign("right","center");
	4133	}
	4134	else {
	4135	$this->img->SetTextAlign($this->label_halign,$this->label_valign);
	4136	}
	4137	$this->img->StrokeText($aPos-$this->tick_label_margin,$tpos,$label,$this->label_angle,$this->label_para_align);
	4138	}
	4139	else { // To the right of the y-axis
	4140	if( $this->label_halign=='' && $this->label_valign=='') {
	4141	$this->img->SetTextAlign("left","center");
	4142	}
	4143	else {
	4144	$this->img->SetTextAlign($this->label_halign,$this->label_valign);
	4145	}
	4146	$this->img->StrokeText($aPos+$this->tick_label_margin,$tpos,$label,$this->label_angle,$this->label_para_align);
	4147	}
	4148	}
	4149	}
	4150	++$i;
	4151	}
	4152	}
	4153
[2]	4154	}
	4155
	4156
	4157	//===================================================
	4158	// CLASS Ticks
	4159	// Description: Abstract base class for drawing linear and logarithmic
	4160	// tick marks on axis
	4161	//===================================================
	4162	class Ticks {
	4163	public $label_formatstr=''; // C-style format string to use for labels
	4164	public $label_formfunc='';
	4165	public $label_dateformatstr='';
	4166	public $direction=1; // Should ticks be in(=1) the plot area or outside (=-1)
	4167	public $supress_last=false,$supress_tickmarks=false,$supress_minor_tickmarks=false;
[284]	4168	public $maj_ticks_pos = array(), $maj_ticklabels_pos = array(),
	4169	$ticks_pos = array(), $maj_ticks_label = array();
[2]	4170	public $precision;
	4171
	4172	protected $minor_abs_size=3, $major_abs_size=5;
	4173	protected $scale;
	4174	protected $is_set=false;
	4175	protected $supress_zerolabel=false,$supress_first=false;
[284]	4176	protected $mincolor='',$majcolor='';
[2]	4177	protected $weight=1;
	4178	protected $label_usedateformat=FALSE;
	4179
[284]	4180	function __construct($aScale) {
	4181	$this->scale=$aScale;
	4182	$this->precision = -1;
[2]	4183	}
	4184
	4185	// Set format string for automatic labels
	4186	function SetLabelFormat($aFormatString,$aDate=FALSE) {
[284]	4187	$this->label_formatstr=$aFormatString;
	4188	$this->label_usedateformat=$aDate;
[2]	4189	}
[284]	4190
[2]	4191	function SetLabelDateFormat($aFormatString) {
[284]	4192	$this->label_dateformatstr=$aFormatString;
[2]	4193	}
[284]	4194
[2]	4195	function SetFormatCallback($aCallbackFuncName) {
[284]	4196	$this->label_formfunc = $aCallbackFuncName;
[2]	4197	}
[284]	4198
[2]	4199	// Don't display the first zero label
	4200	function SupressZeroLabel($aFlag=true) {
[284]	4201	$this->supress_zerolabel=$aFlag;
[2]	4202	}
[284]	4203
[2]	4204	// Don't display minor tick marks
	4205	function SupressMinorTickMarks($aHide=true) {
[284]	4206	$this->supress_minor_tickmarks=$aHide;
[2]	4207	}
[284]	4208
[2]	4209	// Don't display major tick marks
	4210	function SupressTickMarks($aHide=true) {
[284]	4211	$this->supress_tickmarks=$aHide;
[2]	4212	}
[284]	4213
[2]	4214	// Hide the first tick mark
	4215	function SupressFirst($aHide=true) {
[284]	4216	$this->supress_first=$aHide;
[2]	4217	}
[284]	4218
[2]	4219	// Hide the last tick mark
	4220	function SupressLast($aHide=true) {
[284]	4221	$this->supress_last=$aHide;
[2]	4222	}
	4223
	4224	// Size (in pixels) of minor tick marks
	4225	function GetMinTickAbsSize() {
[284]	4226	return $this->minor_abs_size;
[2]	4227	}
[284]	4228
[2]	4229	// Size (in pixels) of major tick marks
	4230	function GetMajTickAbsSize() {
[284]	4231	return $this->major_abs_size;
[2]	4232	}
[284]	4233
[2]	4234	function SetSize($aMajSize,$aMinSize=3) {
[284]	4235	$this->major_abs_size = $aMajSize;
	4236	$this->minor_abs_size = $aMinSize;
[2]	4237	}
	4238
	4239	// Have the ticks been specified
	4240	function IsSpecified() {
[284]	4241	return $this->is_set;
[2]	4242	}
	4243
	4244	function SetSide($aSide) {
[284]	4245	$this->direction=$aSide;
[2]	4246	}
[284]	4247
[2]	4248	// Which side of the axis should the ticks be on
	4249	function SetDirection($aSide=SIDE_RIGHT) {
[284]	4250	$this->direction=$aSide;
[2]	4251	}
[284]	4252
[2]	4253	// Set colors for major and minor tick marks
[284]	4254	function SetMarkColor($aMajorColor,$aMinorColor='') {
	4255	$this->SetColor($aMajorColor,$aMinorColor);
[2]	4256	}
[284]	4257
	4258	function SetColor($aMajorColor,$aMinorColor='') {
	4259	$this->majcolor=$aMajorColor;
	4260
	4261	// If not specified use same as major
	4262	if( $aMinorColor == '' ) {
	4263	$this->mincolor=$aMajorColor;
	4264	}
	4265	else {
	4266	$this->mincolor=$aMinorColor;
	4267	}
[2]	4268	}
[284]	4269
[2]	4270	function SetWeight($aWeight) {
[284]	4271	$this->weight=$aWeight;
[2]	4272	}
[284]	4273
[2]	4274	} // Class
	4275
	4276	//===================================================
	4277	// CLASS LinearTicks
	4278	// Description: Draw linear ticks on axis
	4279	//===================================================
	4280	class LinearTicks extends Ticks {
	4281	public $minor_step=1, $major_step=2;
	4282	public $xlabel_offset=0,$xtick_offset=0;
	4283	private $label_offset=0; // What offset should the displayed label have
	4284	// i.e should we display 0,1,2 or 1,2,3,4 or 2,3,4 etc
	4285	private $text_label_start=0;
	4286	private $iManualTickPos = NULL, $iManualMinTickPos = NULL, $iManualTickLabels = NULL;
	4287	private $iAdjustForDST = false; // If a date falls within the DST period add one hour to the diaplyed time
	4288
[284]	4289	function __construct() {
	4290	$this->precision = -1;
[2]	4291	}
	4292
	4293	// Return major step size in world coordinates
	4294	function GetMajor() {
[284]	4295	return $this->major_step;
[2]	4296	}
[284]	4297
[2]	4298	// Return minor step size in world coordinates
	4299	function GetMinor() {
[284]	4300	return $this->minor_step;
[2]	4301	}
[284]	4302
[2]	4303	// Set Minor and Major ticks (in world coordinates)
	4304	function Set($aMajStep,$aMinStep=false) {
[284]	4305	if( $aMinStep==false ) {
	4306	$aMinStep=$aMajStep;
	4307	}
	4308
	4309	if( $aMajStep <= 0 \|\| $aMinStep <= 0 ) {
	4310	JpGraphError::RaiseL(25064);
	4311	//(" Minor or major step size is 0. Check that you haven't got an accidental SetTextTicks(0) in your code. If this is not the case you might have stumbled upon a bug in JpGraph. Please report this and if possible include the data that caused the problem.");
	4312	}
	4313
	4314	$this->major_step=$aMajStep;
	4315	$this->minor_step=$aMinStep;
	4316	$this->is_set = true;
[2]	4317	}
	4318
	4319	function SetMajTickPositions($aMajPos,$aLabels=NULL) {
[284]	4320	$this->SetTickPositions($aMajPos,NULL,$aLabels);
[2]	4321	}
	4322
	4323	function SetTickPositions($aMajPos,$aMinPos=NULL,$aLabels=NULL) {
[284]	4324	if( !is_array($aMajPos) \|\| ($aMinPos!==NULL && !is_array($aMinPos)) ) {
	4325	JpGraphError::RaiseL(25065);//('Tick positions must be specifued as an array()');
	4326	return;
	4327	}
	4328	$n=count($aMajPos);
	4329	if( is_array($aLabels) && (count($aLabels) != $n) ) {
	4330	JpGraphError::RaiseL(25066);//('When manually specifying tick positions and labels the number of labels must be the same as the number of specified ticks.');
	4331	}
	4332	$this->iManualTickPos = $aMajPos;
	4333	$this->iManualMinTickPos = $aMinPos;
	4334	$this->iManualTickLabels = $aLabels;
[2]	4335	}
	4336
[284]	4337	function HaveManualLabels() {
	4338	return is_array($this->iManualTickLabels) ? count($this->iManualTickLabels) > 0 : false;
	4339	}
[2]	4340
[284]	4341	// Specify all the tick positions manually and possible also the exact labels
	4342	function _doManualTickPos($aScale) {
	4343	$n=count($this->iManualTickPos);
	4344	$m= is_array($this->iManualMinTickPos) ? count($this->iManualMinTickPos) : 0;
	4345	$doLbl= is_array($this->iManualTickLabels) ? count($this->iManualTickLabels) > 0 : false;
[2]	4346
[284]	4347	$this->maj_ticks_pos = array();
	4348	$this->maj_ticklabels_pos = array();
	4349	$this->ticks_pos = array();
[2]	4350
[284]	4351	// Now loop through the supplied positions and translate them to screen coordinates
	4352	// and store them in the maj_label_positions
	4353	$minScale = $aScale->scale[0];
	4354	$maxScale = $aScale->scale[1];
	4355	$j=0;
	4356	for($i=0; $i < $n ; ++$i ) {
	4357	// First make sure that the first tick is not lower than the lower scale value
	4358	if( !isset($this->iManualTickPos[$i]) \|\| $this->iManualTickPos[$i] < $minScale \|\| $this->iManualTickPos[$i] > $maxScale) {
	4359	continue;
	4360	}
[2]	4361
[284]	4362	$this->maj_ticks_pos[$j] = $aScale->Translate($this->iManualTickPos[$i]);
	4363	$this->maj_ticklabels_pos[$j] = $this->maj_ticks_pos[$j];
[2]	4364
[284]	4365	// Set the minor tick marks the same as major if not specified
	4366	if( $m <= 0 ) {
	4367	$this->ticks_pos[$j] = $this->maj_ticks_pos[$j];
	4368	}
	4369	if( $doLbl ) {
	4370	$this->maj_ticks_label[$j] = $this->iManualTickLabels[$i];
	4371	}
	4372	else {
	4373	$this->maj_ticks_label[$j]=$this->_doLabelFormat($this->iManualTickPos[$i],$i,$n);
	4374	}
	4375	++$j;
	4376	}
[2]	4377
[284]	4378	// Some sanity check
	4379	if( count($this->maj_ticks_pos) < 2 ) {
	4380	JpGraphError::RaiseL(25067);//('Your manually specified scale and ticks is not correct. The scale seems to be too small to hold any of the specified tickl marks.');
	4381	}
[2]	4382
[284]	4383	// Setup the minor tick marks
	4384	$j=0;
	4385	for($i=0; $i < $m; ++$i ) {
	4386	if( empty($this->iManualMinTickPos[$i]) \|\| $this->iManualMinTickPos[$i] < $minScale \|\| $this->iManualMinTickPos[$i] > $maxScale) {
	4387	continue;
	4388	}
	4389	$this->ticks_pos[$j] = $aScale->Translate($this->iManualMinTickPos[$i]);
	4390	++$j;
	4391	}
[2]	4392	}
	4393
	4394	function _doAutoTickPos($aScale) {
[284]	4395	$maj_step_abs = $aScale->scale_factor*$this->major_step;
	4396	$min_step_abs = $aScale->scale_factor*$this->minor_step;
[2]	4397
[284]	4398	if( $min_step_abs==0 \|\| $maj_step_abs==0 ) {
	4399	JpGraphError::RaiseL(25068);//("A plot has an illegal scale. This could for example be that you are trying to use text autoscaling to draw a line plot with only one point or that the plot area is too small. It could also be that no input data value is numeric (perhaps only '-' or 'x')");
	4400	}
	4401	// We need to make this an int since comparing it below
	4402	// with the result from round() can give wrong result, such that
	4403	// (40 < 40) == TRUE !!!
	4404	$limit = (int)$aScale->scale_abs[1];
[2]	4405
[284]	4406	if( $aScale->textscale ) {
	4407	// This can only be true for a X-scale (horizontal)
	4408	// Define ticks for a text scale. This is slightly different from a
	4409	// normal linear type of scale since the position might be adjusted
	4410	// and the labels start at on
	4411	$label = (float)$aScale->GetMinVal()+$this->text_label_start+$this->label_offset;
	4412	$start_abs=$aScale->scale_factor*$this->text_label_start;
	4413	$nbrmajticks=round(($aScale->GetMaxVal()-$aScale->GetMinVal()-$this->text_label_start )/$this->major_step)+1;
[2]	4414
[284]	4415	$x = $aScale->scale_abs[0]+$start_abs+$this->xlabel_offset*$min_step_abs;
	4416	for( $i=0; $label <= $aScale->GetMaxVal()+$this->label_offset; ++$i ) {
	4417	// Apply format to label
	4418	$this->maj_ticks_label[$i]=$this->_doLabelFormat($label,$i,$nbrmajticks);
	4419	$label+=$this->major_step;
[2]	4420
[284]	4421	// The x-position of the tick marks can be different from the labels.
	4422	// Note that we record the tick position (not the label) so that the grid
	4423	// happen upon tick marks and not labels.
	4424	$xtick=$aScale->scale_abs[0]+$start_abs+$this->xtick_offset$min_step_abs+$i$maj_step_abs;
	4425	$this->maj_ticks_pos[$i]=$xtick;
	4426	$this->maj_ticklabels_pos[$i] = round($x);
	4427	$x += $maj_step_abs;
	4428	}
	4429	}
	4430	else {
	4431	$label = $aScale->GetMinVal();
	4432	$abs_pos = $aScale->scale_abs[0];
	4433	$j=0; $i=0;
	4434	$step = round($maj_step_abs/$min_step_abs);
	4435	if( $aScale->type == "x" ) {
	4436	// For a normal linear type of scale the major ticks will always be multiples
	4437	// of the minor ticks. In order to avoid any rounding issues the major ticks are
	4438	// defined as every "step" minor ticks and not calculated separately
	4439	$nbrmajticks=round(($aScale->GetMaxVal()-$aScale->GetMinVal()-$this->text_label_start )/$this->major_step)+1;
	4440	while( round($abs_pos) <= $limit ) {
	4441	$this->ticks_pos[] = round($abs_pos);
	4442	$this->ticks_label[] = $label;
	4443	if( $step== 0 \|\| $i % $step == 0 && $j < $nbrmajticks ) {
	4444	$this->maj_ticks_pos[$j] = round($abs_pos);
	4445	$this->maj_ticklabels_pos[$j] = round($abs_pos);
	4446	$this->maj_ticks_label[$j]=$this->_doLabelFormat($label,$j,$nbrmajticks);
	4447	++$j;
	4448	}
	4449	++$i;
	4450	$abs_pos += $min_step_abs;
	4451	$label+=$this->minor_step;
	4452	}
	4453	}
	4454	elseif( $aScale->type == "y" ) {
	4455	//@todo s=2:20,12 s=1:50,6 $this->major_step:$nbr
	4456	// abs_point,limit s=1:270,80 s=2:540,160
	4457	// $this->major_step = 50;
	4458	$nbrmajticks=round(($aScale->GetMaxVal()-$aScale->GetMinVal())/$this->major_step)+1;
	4459	// $step = 5;
	4460	while( round($abs_pos) >= $limit ) {
	4461	$this->ticks_pos[$i] = round($abs_pos);
	4462	$this->ticks_label[$i]=$label;
	4463	if( $step== 0 \|\| $i % $step == 0 && $j < $nbrmajticks) {
	4464	$this->maj_ticks_pos[$j] = round($abs_pos);
	4465	$this->maj_ticklabels_pos[$j] = round($abs_pos);
	4466	$this->maj_ticks_label[$j]=$this->_doLabelFormat($label,$j,$nbrmajticks);
	4467	++$j;
	4468	}
	4469	++$i;
	4470	$abs_pos += $min_step_abs;
	4471	$label += $this->minor_step;
	4472	}
	4473	}
	4474	}
[2]	4475	}
	4476
	4477	function AdjustForDST($aFlg=true) {
[284]	4478	$this->iAdjustForDST = $aFlg;
[2]	4479	}
	4480
	4481
	4482	function _doLabelFormat($aVal,$aIdx,$aNbrTicks) {
	4483
[284]	4484	// If precision hasn't been specified set it to a sensible value
	4485	if( $this->precision==-1 ) {
	4486	$t = log10($this->minor_step);
	4487	if( $t > 0 \|\| $t === 0.0) {
	4488	$precision = 0;
	4489	}
	4490	else {
	4491	$precision = -floor($t);
	4492	}
	4493	}
	4494	else {
	4495	$precision = $this->precision;
	4496	}
[2]	4497
[284]	4498	if( $this->label_formfunc != '' ) {
	4499	$f=$this->label_formfunc;
	4500	if( $this->label_formatstr == '' ) {
	4501	$l = call_user_func($f,$aVal);
	4502	}
	4503	else {
	4504	$l = sprintf($this->label_formatstr, call_user_func($f,$aVal));
	4505	}
	4506	}
	4507	elseif( $this->label_formatstr != '' \|\| $this->label_dateformatstr != '' ) {
	4508	if( $this->label_usedateformat ) {
	4509	// Adjust the value to take daylight savings into account
	4510	if (date("I",$aVal)==1 && $this->iAdjustForDST ) {
	4511	// DST
	4512	$aVal+=3600;
	4513	}
[2]	4514
[284]	4515	$l = date($this->label_formatstr,$aVal);
	4516	if( $this->label_formatstr == 'W' ) {
	4517	// If we use week formatting then add a single 'w' in front of the
	4518	// week number to differentiate it from dates
	4519	$l = 'w'.$l;
	4520	}
	4521	}
	4522	else {
	4523	if( $this->label_dateformatstr !== '' ) {
	4524	// Adjust the value to take daylight savings into account
	4525	if (date("I",$aVal)==1 && $this->iAdjustForDST ) {
	4526	// DST
	4527	$aVal+=3600;
	4528	}
[2]	4529
[284]	4530	$l = date($this->label_dateformatstr,$aVal);
	4531	if( $this->label_formatstr == 'W' ) {
	4532	// If we use week formatting then add a single 'w' in front of the
	4533	// week number to differentiate it from dates
	4534	$l = 'w'.$l;
	4535	}
	4536	}
	4537	else {
	4538	$l = sprintf($this->label_formatstr,$aVal);
	4539	}
	4540	}
	4541	}
	4542	else {
	4543	$l = sprintf('%01.'.$precision.'f',round($aVal,$precision));
	4544	}
	4545
	4546	if( ($this->supress_zerolabel && $l==0) \|\| ($this->supress_first && $aIdx==0) \|\| ($this->supress_last && $aIdx==$aNbrTicks-1) ) {
	4547	$l='';
	4548	}
	4549	return $l;
[2]	4550	}
	4551
	4552	// Stroke ticks on either X or Y axis
	4553	function _StrokeTicks($aImg,$aScale,$aPos) {
[284]	4554	$hor = $aScale->type == 'x';
	4555	$aImg->SetLineWeight($this->weight);
[2]	4556
[284]	4557	// We need to make this an int since comparing it below
	4558	// with the result from round() can give wrong result, such that
	4559	// (40 < 40) == TRUE !!!
	4560	$limit = (int)$aScale->scale_abs[1];
[2]	4561
[284]	4562	// A text scale doesn't have any minor ticks
	4563	if( !$aScale->textscale ) {
	4564	// Stroke minor ticks
	4565	$yu = $aPos - $this->direction*$this->GetMinTickAbsSize();
	4566	$xr = $aPos + $this->direction*$this->GetMinTickAbsSize();
	4567	$n = count($this->ticks_pos);
	4568	for($i=0; $i < $n; ++$i ) {
	4569	if( !$this->supress_tickmarks && !$this->supress_minor_tickmarks) {
	4570	if( $this->mincolor != '') {
	4571	$aImg->PushColor($this->mincolor);
	4572	}
	4573	if( $hor ) {
	4574	//if( $this->ticks_pos[$i] <= $limit )
	4575	$aImg->Line($this->ticks_pos[$i],$aPos,$this->ticks_pos[$i],$yu);
	4576	}
	4577	else {
	4578	//if( $this->ticks_pos[$i] >= $limit )
	4579	$aImg->Line($aPos,$this->ticks_pos[$i],$xr,$this->ticks_pos[$i]);
	4580	}
	4581	if( $this->mincolor != '' ) {
	4582	$aImg->PopColor();
	4583	}
	4584	}
	4585	}
	4586	}
	4587
	4588	// Stroke major ticks
	4589	$yu = $aPos - $this->direction*$this->GetMajTickAbsSize();
	4590	$xr = $aPos + $this->direction*$this->GetMajTickAbsSize();
	4591	$nbrmajticks=round(($aScale->GetMaxVal()-$aScale->GetMinVal()-$this->text_label_start )/$this->major_step)+1;
	4592	$n = count($this->maj_ticks_pos);
	4593	for($i=0; $i < $n ; ++$i ) {
	4594	if(!($this->xtick_offset > 0 && $i==$nbrmajticks-1) && !$this->supress_tickmarks) {
	4595	if( $this->majcolor != '') {
	4596	$aImg->PushColor($this->majcolor);
	4597	}
	4598	if( $hor ) {
	4599	//if( $this->maj_ticks_pos[$i] <= $limit )
	4600	$aImg->Line($this->maj_ticks_pos[$i],$aPos,$this->maj_ticks_pos[$i],$yu);
	4601	}
	4602	else {
	4603	//if( $this->maj_ticks_pos[$i] >= $limit )
	4604	$aImg->Line($aPos,$this->maj_ticks_pos[$i],$xr,$this->maj_ticks_pos[$i]);
	4605	}
	4606	if( $this->majcolor != '') {
	4607	$aImg->PopColor();
	4608	}
	4609	}
	4610	}
	4611
[2]	4612	}
	4613
	4614	// Draw linear ticks
	4615	function Stroke($aImg,$aScale,$aPos) {
[284]	4616	if( $this->iManualTickPos != NULL ) {
	4617	$this->_doManualTickPos($aScale);
	4618	}
	4619	else {
	4620	$this->_doAutoTickPos($aScale);
	4621	}
	4622	$this->_StrokeTicks($aImg,$aScale,$aPos, $aScale->type == 'x' );
[2]	4623	}
	4624
[284]	4625	//---------------
	4626	// PRIVATE METHODS
[2]	4627	// Spoecify the offset of the displayed tick mark with the tick "space"
[284]	4628	// Legal values for $o is [0,1] used to adjust where the tick marks and label
[2]	4629	// should be positioned within the major tick-size
	4630	// $lo specifies the label offset and $to specifies the tick offset
	4631	// this comes in handy for example in bar graphs where we wont no offset for the
	4632	// tick but have the labels displayed halfway under the bars.
	4633	function SetXLabelOffset($aLabelOff,$aTickOff=-1) {
[284]	4634	$this->xlabel_offset=$aLabelOff;
	4635	if( $aTickOff==-1 ) {
	4636	// Same as label offset
	4637	$this->xtick_offset=$aLabelOff;
	4638	}
	4639	else {
	4640	$this->xtick_offset=$aTickOff;
	4641	}
	4642	if( $aLabelOff>0 ) {
	4643	$this->SupressLast(); // The last tick wont fit
	4644	}
[2]	4645	}
	4646
	4647	// Which tick label should we start with?
	4648	function SetTextLabelStart($aTextLabelOff) {
[284]	4649	$this->text_label_start=$aTextLabelOff;
[2]	4650	}
[284]	4651
[2]	4652	} // Class
	4653
	4654	//===================================================
	4655	// CLASS LinearScale
[284]	4656	// Description: Handle linear scaling between screen and world
[2]	4657	//===================================================
	4658	class LinearScale {
	4659	public $textscale=false; // Just a flag to let the Plot class find out if
	4660	// we are a textscale or not. This is a cludge since
	4661	// this information is available in Graph::axtype but
	4662	// we don't have access to the graph object in the Plots
	4663	// stroke method. So we let graph store the status here
	4664	// when the linear scale is created. A real cludge...
	4665	public $type; // is this x or y scale ?
	4666	public $ticks=null; // Store ticks
	4667	public $text_scale_off = 0;
	4668	public $scale_abs=array(0,0);
	4669	public $scale_factor; // Scale factor between world and screen
	4670	public $off; // Offset between image edge and plot area
	4671	public $scale=array(0,0);
	4672	public $name = 'lin';
	4673	public $auto_ticks=false; // When using manual scale should the ticks be automatically set?
	4674	public $world_abs_size; // Plot area size in pixels (Needed public in jpgraph_radar.php)
	4675	public $intscale=false; // Restrict autoscale to integers
	4676	protected $autoscale_min=false; // Forced minimum value, auto determine max
	4677	protected $autoscale_max=false; // Forced maximum value, auto determine min
	4678	private $gracetop=0,$gracebottom=0;
[284]	4679
	4680	private $_world_size; // Plot area size in world coordinates
	4681
	4682	function __construct($aMin=0,$aMax=0,$aType='y') {
	4683	assert($aType=='x' \|\| $aType=='y' );
	4684	assert($aMin<=$aMax);
	4685
	4686	$this->type=$aType;
	4687	$this->scale=array($aMin,$aMax);
	4688	$this->world_size=$aMax-$aMin;
	4689	$this->ticks = new LinearTicks();
[2]	4690	}
	4691
	4692	// Check if scale is set or if we should autoscale
	4693	// We should do this is either scale or ticks has not been set
	4694	function IsSpecified() {
[284]	4695	if( $this->GetMinVal()==$this->GetMaxVal() ) { // Scale not set
	4696	return false;
	4697	}
	4698	return true;
[2]	4699	}
[284]	4700
	4701	// Set the minimum data value when the autoscaling is used.
[2]	4702	// Usefull if you want a fix minimum (like 0) but have an
	4703	// automatic maximum
	4704	function SetAutoMin($aMin) {
[284]	4705	$this->autoscale_min=$aMin;
[2]	4706	}
	4707
[284]	4708	// Set the minimum data value when the autoscaling is used.
[2]	4709	// Usefull if you want a fix minimum (like 0) but have an
	4710	// automatic maximum
	4711	function SetAutoMax($aMax) {
[284]	4712	$this->autoscale_max=$aMax;
[2]	4713	}
	4714
	4715	// If the user manually specifies a scale should the ticks
	4716	// still be set automatically?
	4717	function SetAutoTicks($aFlag=true) {
[284]	4718	$this->auto_ticks = $aFlag;
[2]	4719	}
	4720
	4721	// Specify scale "grace" value (top and bottom)
	4722	function SetGrace($aGraceTop,$aGraceBottom=0) {
[284]	4723	if( $aGraceTop<0 \|\| $aGraceBottom < 0 ) {
	4724	JpGraphError::RaiseL(25069);//(" Grace must be larger then 0");
	4725	}
	4726	$this->gracetop=$aGraceTop;
	4727	$this->gracebottom=$aGraceBottom;
[2]	4728	}
[284]	4729
[2]	4730	// Get the minimum value in the scale
	4731	function GetMinVal() {
[284]	4732	return $this->scale[0];
[2]	4733	}
[284]	4734
[2]	4735	// get maximum value for scale
	4736	function GetMaxVal() {
[284]	4737	return $this->scale[1];
[2]	4738	}
[284]	4739
	4740	// Specify a new min/max value for sclae
[2]	4741	function Update($aImg,$aMin,$aMax) {
[284]	4742	$this->scale=array($aMin,$aMax);
	4743	$this->world_size=$aMax-$aMin;
	4744	$this->InitConstants($aImg);
[2]	4745	}
[284]	4746
[2]	4747	// Translate between world and screen
	4748	function Translate($aCoord) {
[284]	4749	if( !is_numeric($aCoord) ) {
	4750	if( $aCoord != '' && $aCoord != '-' && $aCoord != 'x' ) {
	4751	JpGraphError::RaiseL(25070);//('Your data contains non-numeric values.');
	4752	}
	4753	return 0;
	4754	}
	4755	else {
	4756	return round($this->off+($aCoord - $this->scale[0]) * $this->scale_factor);
	4757	}
[2]	4758	}
[284]	4759
[2]	4760	// Relative translate (don't include offset) usefull when we just want
	4761	// to know the relative position (in pixels) on the axis
	4762	function RelTranslate($aCoord) {
[284]	4763	if( !is_numeric($aCoord) ) {
	4764	if( $aCoord != '' && $aCoord != '-' && $aCoord != 'x' ) {
	4765	JpGraphError::RaiseL(25070);//('Your data contains non-numeric values.');
	4766	}
	4767	return 0;
	4768	}
	4769	else {
	4770	return ($aCoord - $this->scale[0]) * $this->scale_factor;
	4771	}
[2]	4772	}
[284]	4773
[2]	4774	// Restrict autoscaling to only use integers
	4775	function SetIntScale($aIntScale=true) {
[284]	4776	$this->intscale=$aIntScale;
[2]	4777	}
[284]	4778
[2]	4779	// Calculate an integer autoscale
	4780	function IntAutoScale($img,$min,$max,$maxsteps,$majend=true) {
[284]	4781	// Make sure limits are integers
	4782	$min=floor($min);
	4783	$max=ceil($max);
	4784	if( abs($min-$max)==0 ) {
	4785	--$min; ++$max;
	4786	}
	4787	$maxsteps = floor($maxsteps);
[2]	4788
[284]	4789	$gracetop=round(($this->gracetop/100.0)*abs($max-$min));
	4790	$gracebottom=round(($this->gracebottom/100.0)*abs($max-$min));
	4791	if( is_numeric($this->autoscale_min) ) {
	4792	$min = ceil($this->autoscale_min);
	4793	if( $min >= $max ) {
	4794	JpGraphError::RaiseL(25071);//('You have specified a min value with SetAutoMin() which is larger than the maximum value used for the scale. This is not possible.');
	4795	}
	4796	}
[2]	4797
[284]	4798	if( is_numeric($this->autoscale_max) ) {
	4799	$max = ceil($this->autoscale_max);
	4800	if( $min >= $max ) {
	4801	JpGraphError::RaiseL(25072);//('You have specified a max value with SetAutoMax() which is smaller than the miminum value used for the scale. This is not possible.');
	4802	}
	4803	}
[2]	4804
[284]	4805	if( abs($min-$max ) == 0 ) {
	4806	++$max;
	4807	--$min;
	4808	}
[2]	4809
[284]	4810	$min -= $gracebottom;
	4811	$max += $gracetop;
	4812
	4813	// First get tickmarks as multiples of 1, 10, ...
	4814	if( $majend ) {
	4815	list($num1steps,$adj1min,$adj1max,$maj1step) = $this->IntCalcTicks($maxsteps,$min,$max,1);
	4816	}
	4817	else {
	4818	$adj1min = $min;
	4819	$adj1max = $max;
	4820	list($num1steps,$maj1step) = $this->IntCalcTicksFreeze($maxsteps,$min,$max,1);
	4821	}
	4822
	4823	if( abs($min-$max) > 2 ) {
	4824	// Then get tick marks as 2:s 2, 20, ...
	4825	if( $majend ) {
	4826	list($num2steps,$adj2min,$adj2max,$maj2step) = $this->IntCalcTicks($maxsteps,$min,$max,5);
	4827	}
	4828	else {
	4829	$adj2min = $min;
	4830	$adj2max = $max;
	4831	list($num2steps,$maj2step) = $this->IntCalcTicksFreeze($maxsteps,$min,$max,5);
	4832	}
	4833	}
	4834	else {
	4835	$num2steps = 10000; // Dummy high value so we don't choose this
	4836	}
	4837
	4838	if( abs($min-$max) > 5 ) {
	4839	// Then get tickmarks as 5:s 5, 50, 500, ...
	4840	if( $majend ) {
	4841	list($num5steps,$adj5min,$adj5max,$maj5step) = $this->IntCalcTicks($maxsteps,$min,$max,2);
	4842	}
	4843	else {
	4844	$adj5min = $min;
	4845	$adj5max = $max;
	4846	list($num5steps,$maj5step) = $this->IntCalcTicksFreeze($maxsteps,$min,$max,2);
	4847	}
	4848	}
	4849	else {
	4850	$num5steps = 10000; // Dummy high value so we don't choose this
	4851	}
	4852
	4853	// Check to see whichof 1:s, 2:s or 5:s fit better with
	4854	// the requested number of major ticks
	4855	$match1=abs($num1steps-$maxsteps);
	4856	$match2=abs($num2steps-$maxsteps);
	4857	if( !empty($maj5step) && $maj5step > 1 ) {
	4858	$match5=abs($num5steps-$maxsteps);
	4859	}
	4860	else {
	4861	$match5=10000; // Dummy high value
	4862	}
	4863
	4864	// Compare these three values and see which is the closest match
	4865	// We use a 0.6 weight to gravitate towards multiple of 5:s
	4866	if( $match1 < $match2 ) {
	4867	if( $match1 < $match5 ) $r=1;
	4868	else $r=3;
	4869	}
	4870	else {
	4871	if( $match2 < $match5 ) $r=2;
	4872	else $r=3;
	4873	}
	4874	// Minsteps are always the same as maxsteps for integer scale
	4875	switch( $r ) {
	4876	case 1:
	4877	$this->ticks->Set($maj1step,$maj1step);
	4878	$this->Update($img,$adj1min,$adj1max);
	4879	break;
	4880	case 2:
	4881	$this->ticks->Set($maj2step,$maj2step);
	4882	$this->Update($img,$adj2min,$adj2max);
	4883	break;
	4884	case 3:
	4885	$this->ticks->Set($maj5step,$maj5step);
	4886	$this->Update($img,$adj5min,$adj5max);
	4887	break;
	4888	default:
	4889	JpGraphError::RaiseL(25073,$r);//('Internal error. Integer scale algorithm comparison out of bound (r=$r)');
	4890	}
[2]	4891	}
[284]	4892
	4893
[2]	4894	// Calculate autoscale. Used if user hasn't given a scale and ticks
	4895	// $maxsteps is the maximum number of major tickmarks allowed.
	4896	function AutoScale($img,$min,$max,$maxsteps,$majend=true) {
	4897
[284]	4898	if( !is_numeric($min) \|\| !is_numeric($max) ) {
	4899	JpGraphError::Raise(25044);
	4900	}
[2]	4901
[284]	4902	if( $this->intscale ) {
	4903	$this->IntAutoScale($img,$min,$max,$maxsteps,$majend);
	4904	return;
	4905	}
	4906	if( abs($min-$max) < 0.00001 ) {
	4907	// We need some difference to be able to autoscale
	4908	// make it 5% above and 5% below value
	4909	if( $min==0 && $max==0 ) { // Special case
	4910	$min=-1; $max=1;
	4911	}
	4912	else {
	4913	$delta = (abs($max)+abs($min))*0.005;
	4914	$min -= $delta;
	4915	$max += $delta;
	4916	}
	4917	}
[2]	4918
[284]	4919	$gracetop=($this->gracetop/100.0)*abs($max-$min);
	4920	$gracebottom=($this->gracebottom/100.0)*abs($max-$min);
	4921	if( is_numeric($this->autoscale_min) ) {
	4922	$min = $this->autoscale_min;
	4923	if( $min >= $max ) {
	4924	JpGraphError::RaiseL(25071);//('You have specified a min value with SetAutoMin() which is larger than the maximum value used for the scale. This is not possible.');
	4925	}
	4926	if( abs($min-$max ) < 0.001 ) {
	4927	$max *= 1.2;
	4928	}
	4929	}
[2]	4930
[284]	4931	if( is_numeric($this->autoscale_max) ) {
	4932	$max = $this->autoscale_max;
	4933	if( $min >= $max ) {
	4934	JpGraphError::RaiseL(25072);//('You have specified a max value with SetAutoMax() which is smaller than the miminum value used for the scale. This is not possible.');
	4935	}
	4936	if( abs($min-$max ) < 0.001 ) {
	4937	$min *= 0.8;
	4938	}
	4939	}
[2]	4940
[284]	4941	$min -= $gracebottom;
	4942	$max += $gracetop;
	4943
	4944	// First get tickmarks as multiples of 0.1, 1, 10, ...
	4945	if( $majend ) {
	4946	list($num1steps,$adj1min,$adj1max,$min1step,$maj1step) = $this->CalcTicks($maxsteps,$min,$max,1,2);
	4947	}
	4948	else {
	4949	$adj1min=$min;
	4950	$adj1max=$max;
	4951	list($num1steps,$min1step,$maj1step) = $this->CalcTicksFreeze($maxsteps,$min,$max,1,2,false);
	4952	}
	4953
	4954	// Then get tick marks as 2:s 0.2, 2, 20, ...
	4955	if( $majend ) {
	4956	list($num2steps,$adj2min,$adj2max,$min2step,$maj2step) = $this->CalcTicks($maxsteps,$min,$max,5,2);
	4957	}
	4958	else {
	4959	$adj2min=$min;
	4960	$adj2max=$max;
	4961	list($num2steps,$min2step,$maj2step) = $this->CalcTicksFreeze($maxsteps,$min,$max,5,2,false);
	4962	}
	4963
	4964	// Then get tickmarks as 5:s 0.05, 0.5, 5, 50, ...
	4965	if( $majend ) {
	4966	list($num5steps,$adj5min,$adj5max,$min5step,$maj5step) = $this->CalcTicks($maxsteps,$min,$max,2,5);
	4967	}
	4968	else {
	4969	$adj5min=$min;
	4970	$adj5max=$max;
	4971	list($num5steps,$min5step,$maj5step) = $this->CalcTicksFreeze($maxsteps,$min,$max,2,5,false);
	4972	}
	4973
	4974	// Check to see whichof 1:s, 2:s or 5:s fit better with
	4975	// the requested number of major ticks
	4976	$match1=abs($num1steps-$maxsteps);
	4977	$match2=abs($num2steps-$maxsteps);
	4978	$match5=abs($num5steps-$maxsteps);
	4979
	4980	// Compare these three values and see which is the closest match
	4981	// We use a 0.8 weight to gravitate towards multiple of 5:s
	4982	$r=$this->MatchMin3($match1,$match2,$match5,0.8);
	4983	switch( $r ) {
	4984	case 1:
	4985	$this->Update($img,$adj1min,$adj1max);
	4986	$this->ticks->Set($maj1step,$min1step);
	4987	break;
	4988	case 2:
	4989	$this->Update($img,$adj2min,$adj2max);
	4990	$this->ticks->Set($maj2step,$min2step);
	4991	break;
	4992	case 3:
	4993	$this->Update($img,$adj5min,$adj5max);
	4994	$this->ticks->Set($maj5step,$min5step);
	4995	break;
	4996	}
[2]	4997	}
	4998
[284]	4999	//---------------
	5000	// PRIVATE METHODS
[2]	5001
	5002	// This method recalculates all constants that are depending on the
	5003	// margins in the image. If the margins in the image are changed
	5004	// this method should be called for every scale that is registred with
	5005	// that image. Should really be installed as an observer of that image.
	5006	function InitConstants($img) {
[284]	5007	if( $this->type=='x' ) {
	5008	$this->world_abs_size=$img->width - $img->left_margin - $img->right_margin;
	5009	$this->off=$img->left_margin;
	5010	$this->scale_factor = 0;
	5011	if( $this->world_size > 0 ) {
	5012	$this->scale_factor=$this->world_abs_size/($this->world_size*0.999999);
	5013	}
	5014	}
	5015	else { // y scale
	5016	$this->world_abs_size=$img->height - $img->top_margin - $img->bottom_margin;
	5017	$this->off=$img->top_margin+$this->world_abs_size;
	5018	$this->scale_factor = 0;
	5019	if( $this->world_size > 0 ) {
	5020	$this->scale_factor=-$this->world_abs_size/($this->world_size*0.999999);
	5021	}
	5022	}
	5023	$size = $this->world_size * $this->scale_factor;
	5024	$this->scale_abs=array($this->off,$this->off + $size);
[2]	5025	}
[284]	5026
[2]	5027	// Initialize the conversion constants for this scale
	5028	// This tries to pre-calculate as much as possible to speed up the
	5029	// actual conversion (with Translate()) later on
[284]	5030	// $start =scale start in absolute pixels (for x-scale this is an y-position
	5031	// and for an y-scale this is an x-position
	5032	// $len =absolute length in pixels of scale
[2]	5033	function SetConstants($aStart,$aLen) {
[284]	5034	$this->world_abs_size=$aLen;
	5035	$this->off=$aStart;
[2]	5036
[284]	5037	if( $this->world_size<=0 ) {
	5038	// This should never ever happen !!
	5039	JpGraphError::RaiseL(25074);
	5040	//("You have unfortunately stumbled upon a bug in JpGraph. It seems like the scale range is ".$this->world_size." [for ".$this->type." scale] <br> Please report Bug #01 to info@jpgraph.net and include the script that gave this error. This problem could potentially be caused by trying to use \"illegal\" values in the input data arrays (like trying to send in strings or only NULL values) which causes the autoscaling to fail.");
	5041	}
	5042
	5043	// scale_factor = number of pixels per world unit
	5044	$this->scale_factor=$this->world_abs_size/($this->world_size*1.0);
	5045
	5046	// scale_abs = start and end points of scale in absolute pixels
	5047	$this->scale_abs=array($this->off,$this->off+$this->world_size*$this->scale_factor);
[2]	5048	}
[284]	5049
	5050
[2]	5051	// Calculate number of ticks steps with a specific division
	5052	// $a is the divisor of 10**x to generate the first maj tick intervall
	5053	// $a=1, $b=2 give major ticks with multiple of 10, ...,0.1,1,10,...
	5054	// $a=5, $b=2 give major ticks with multiple of 2:s ...,0.2,2,20,...
	5055	// $a=2, $b=5 give major ticks with multiple of 5:s ...,0.5,5,50,...
	5056	// We return a vector of
[284]	5057	// [$numsteps,$adjmin,$adjmax,$minstep,$majstep]
[2]	5058	// If $majend==true then the first and last marks on the axis will be major
	5059	// labeled tick marks otherwise it will be adjusted to the closest min tick mark
	5060	function CalcTicks($maxsteps,$min,$max,$a,$b,$majend=true) {
[284]	5061	$diff=$max-$min;
	5062	if( $diff==0 ) {
	5063	$ld=0;
	5064	}
	5065	else {
	5066	$ld=floor(log10($diff));
	5067	}
[2]	5068
[284]	5069	// Gravitate min towards zero if we are close
	5070	if( $min>0 && $min < pow(10,$ld) ) $min=0;
[2]	5071
[284]	5072	//$majstep=pow(10,$ld-1)/$a;
	5073	$majstep=pow(10,$ld)/$a;
	5074	$minstep=$majstep/$b;
[2]	5075
[284]	5076	$adjmax=ceil($max/$minstep)*$minstep;
	5077	$adjmin=floor($min/$minstep)*$minstep;
	5078	$adjdiff = $adjmax-$adjmin;
	5079	$numsteps=$adjdiff/$majstep;
	5080
	5081	while( $numsteps>$maxsteps ) {
	5082	$majstep=pow(10,$ld)/$a;
	5083	$numsteps=$adjdiff/$majstep;
	5084	++$ld;
	5085	}
	5086
	5087	$minstep=$majstep/$b;
	5088	$adjmin=floor($min/$minstep)*$minstep;
	5089	$adjdiff = $adjmax-$adjmin;
	5090	if( $majend ) {
	5091	$adjmin = floor($min/$majstep)*$majstep;
	5092	$adjdiff = $adjmax-$adjmin;
	5093	$adjmax = ceil($adjdiff/$majstep)*$majstep+$adjmin;
	5094	}
	5095	else {
	5096	$adjmax=ceil($max/$minstep)*$minstep;
	5097	}
	5098
	5099	return array($numsteps,$adjmin,$adjmax,$minstep,$majstep);
[2]	5100	}
	5101
	5102	function CalcTicksFreeze($maxsteps,$min,$max,$a,$b) {
[284]	5103	// Same as CalcTicks but don't adjust min/max values
	5104	$diff=$max-$min;
	5105	if( $diff==0 ) {
	5106	$ld=0;
	5107	}
	5108	else {
	5109	$ld=floor(log10($diff));
	5110	}
[2]	5111
[284]	5112	//$majstep=pow(10,$ld-1)/$a;
	5113	$majstep=pow(10,$ld)/$a;
	5114	$minstep=$majstep/$b;
	5115	$numsteps=floor($diff/$majstep);
	5116
	5117	while( $numsteps > $maxsteps ) {
	5118	$majstep=pow(10,$ld)/$a;
	5119	$numsteps=floor($diff/$majstep);
	5120	++$ld;
	5121	}
	5122	$minstep=$majstep/$b;
	5123	return array($numsteps,$minstep,$majstep);
[2]	5124	}
	5125
[284]	5126
[2]	5127	function IntCalcTicks($maxsteps,$min,$max,$a,$majend=true) {
[284]	5128	$diff=$max-$min;
	5129	if( $diff==0 ) {
	5130	JpGraphError::RaiseL(25075);//('Can\'t automatically determine ticks since min==max.');
	5131	}
	5132	else {
	5133	$ld=floor(log10($diff));
	5134	}
[2]	5135
[284]	5136	// Gravitate min towards zero if we are close
	5137	if( $min>0 && $min < pow(10,$ld) ) {
	5138	$min=0;
	5139	}
	5140	if( $ld == 0 ) {
	5141	$ld=1;
	5142	}
	5143	if( $a == 1 ) {
	5144	$majstep = 1;
	5145	}
	5146	else {
	5147	$majstep=pow(10,$ld)/$a;
	5148	}
	5149	$adjmax=ceil($max/$majstep)*$majstep;
	5150
	5151	$adjmin=floor($min/$majstep)*$majstep;
	5152	$adjdiff = $adjmax-$adjmin;
	5153	$numsteps=$adjdiff/$majstep;
	5154	while( $numsteps>$maxsteps ) {
	5155	$majstep=pow(10,$ld)/$a;
	5156	$numsteps=$adjdiff/$majstep;
	5157	++$ld;
	5158	}
	5159
	5160	$adjmin=floor($min/$majstep)*$majstep;
	5161	$adjdiff = $adjmax-$adjmin;
	5162	if( $majend ) {
	5163	$adjmin = floor($min/$majstep)*$majstep;
	5164	$adjdiff = $adjmax-$adjmin;
	5165	$adjmax = ceil($adjdiff/$majstep)*$majstep+$adjmin;
	5166	}
	5167	else {
	5168	$adjmax=ceil($max/$majstep)*$majstep;
	5169	}
	5170
	5171	return array($numsteps,$adjmin,$adjmax,$majstep);
[2]	5172	}
	5173
	5174
	5175	function IntCalcTicksFreeze($maxsteps,$min,$max,$a) {
[284]	5176	// Same as IntCalcTick but don't change min/max values
	5177	$diff=$max-$min;
	5178	if( $diff==0 ) {
	5179	JpGraphError::RaiseL(25075);//('Can\'t automatically determine ticks since min==max.');
	5180	}
	5181	else {
	5182	$ld=floor(log10($diff));
	5183	}
	5184	if( $ld == 0 ) {
	5185	$ld=1;
	5186	}
	5187	if( $a == 1 ) {
	5188	$majstep = 1;
	5189	}
	5190	else {
	5191	$majstep=pow(10,$ld)/$a;
	5192	}
[2]	5193
[284]	5194	$numsteps=floor($diff/$majstep);
	5195	while( $numsteps > $maxsteps ) {
	5196	$majstep=pow(10,$ld)/$a;
	5197	$numsteps=floor($diff/$majstep);
	5198	++$ld;
	5199	}
	5200
	5201	return array($numsteps,$majstep);
[2]	5202	}
	5203
	5204	// Determine the minimum of three values witha weight for last value
	5205	function MatchMin3($a,$b,$c,$weight) {
[284]	5206	if( $a < $b ) {
	5207	if( $a < ($c*$weight) ) {
	5208	return 1; // $a smallest
	5209	}
	5210	else {
	5211	return 3; // $c smallest
	5212	}
	5213	}
	5214	elseif( $b < ($c*$weight) ) {
	5215	return 2; // $b smallest
	5216	}
	5217	return 3; // $c smallest
[2]	5218	}
[284]	5219
	5220	function __get($name) {
	5221	$variable_name = '_' . $name;
	5222
	5223	if (isset($this->$variable_name)) {
	5224	return $this->$variable_name * SUPERSAMPLING_SCALE;
	5225	} else {
	5226	JpGraphError::RaiseL('25132', $name);
	5227	}
	5228	}
	5229
	5230	function __set($name, $value) {
	5231	$this->{'_'.$name} = $value;
	5232	}
[2]	5233	} // Class
	5234
	5235
	5236	//===================================================
	5237	// CLASS DisplayValue
	5238	// Description: Used to print data values at data points
	5239	//===================================================
	5240	class DisplayValue {
	5241	public $margin=5;
	5242	public $show=false;
[284]	5243	public $valign='',$halign='center';
	5244	public $format='%.1f',$negformat='';
	5245	private $ff=FF_DEFAULT,$fs=FS_NORMAL,$fsize=8;
[2]	5246	private $iFormCallback='';
	5247	private $angle=0;
[284]	5248	private $color='navy',$negcolor='';
[2]	5249	private $iHideZero=false;
[284]	5250	public $txt=null;
[2]	5251
[284]	5252	function __construct() {
	5253	$this->txt = new Text();
	5254	}
	5255
[2]	5256	function Show($aFlag=true) {
[284]	5257	$this->show=$aFlag;
[2]	5258	}
	5259
[284]	5260	function SetColor($aColor,$aNegcolor='') {
	5261	$this->color = $aColor;
	5262	$this->negcolor = $aNegcolor;
[2]	5263	}
	5264
[284]	5265	function SetFont($aFontFamily,$aFontStyle=FS_NORMAL,$aFontSize=8) {
	5266	$this->ff=$aFontFamily;
	5267	$this->fs=$aFontStyle;
	5268	$this->fsize=$aFontSize;
[2]	5269	}
	5270
	5271	function ApplyFont($aImg) {
[284]	5272	$aImg->SetFont($this->ff,$this->fs,$this->fsize);
[2]	5273	}
	5274
	5275	function SetMargin($aMargin) {
[284]	5276	$this->margin = $aMargin;
[2]	5277	}
	5278
	5279	function SetAngle($aAngle) {
[284]	5280	$this->angle = $aAngle;
[2]	5281	}
	5282
	5283	function SetAlign($aHAlign,$aVAlign='') {
[284]	5284	$this->halign = $aHAlign;
	5285	$this->valign = $aVAlign;
[2]	5286	}
	5287
[284]	5288	function SetFormat($aFormat,$aNegFormat='') {
	5289	$this->format= $aFormat;
	5290	$this->negformat= $aNegFormat;
[2]	5291	}
	5292
	5293	function SetFormatCallback($aFunc) {
[284]	5294	$this->iFormCallback = $aFunc;
[2]	5295	}
	5296
	5297	function HideZero($aFlag=true) {
[284]	5298	$this->iHideZero=$aFlag;
[2]	5299	}
	5300
	5301	function Stroke($img,$aVal,$x,$y) {
	5302
[284]	5303	if( $this->show )
	5304	{
	5305	if( $this->negformat=='' ) {
	5306	$this->negformat=$this->format;
	5307	}
	5308	if( $this->negcolor=='' ) {
	5309	$this->negcolor=$this->color;
	5310	}
[2]	5311
[284]	5312	if( $aVal===NULL \|\| (is_string($aVal) && ($aVal=='' \|\| $aVal=='-' \|\| $aVal=='x' ) ) ) {
	5313	return;
	5314	}
[2]	5315
[284]	5316	if( is_numeric($aVal) && $aVal==0 && $this->iHideZero ) {
	5317	return;
	5318	}
[2]	5319
[284]	5320	// Since the value is used in different cirumstances we need to check what
	5321	// kind of formatting we shall use. For example, to display values in a line
	5322	// graph we simply display the formatted value, but in the case where the user
	5323	// has already specified a text string we don't fo anything.
	5324	if( $this->iFormCallback != '' ) {
	5325	$f = $this->iFormCallback;
	5326	$sval = call_user_func($f,$aVal);
	5327	}
	5328	elseif( is_numeric($aVal) ) {
	5329	if( $aVal >= 0 ) {
	5330	$sval=sprintf($this->format,$aVal);
	5331	}
	5332	else {
	5333	$sval=sprintf($this->negformat,$aVal);
	5334	}
	5335	}
	5336	else {
	5337	$sval=$aVal;
	5338	}
[2]	5339
[284]	5340	$y = $y-sign($aVal)*$this->margin;
[2]	5341
[284]	5342	$this->txt->Set($sval);
	5343	$this->txt->SetPos($x,$y);
	5344	$this->txt->SetFont($this->ff,$this->fs,$this->fsize);
	5345	if( $this->valign == '' ) {
	5346	if( $aVal >= 0 ) {
	5347	$valign = "bottom";
	5348	}
	5349	else {
	5350	$valign = "top";
	5351	}
	5352	}
	5353	else {
	5354	$valign = $this->valign;
	5355	}
	5356	$this->txt->Align($this->halign,$valign);
	5357
	5358	$this->txt->SetOrientation($this->angle);
	5359	if( $aVal > 0 ) {
	5360	$this->txt->SetColor($this->color);
	5361	}
	5362	else {
	5363	$this->txt->SetColor($this->negcolor);
	5364	}
	5365	$this->txt->Stroke($img);
	5366	}
[2]	5367	}
	5368	}
	5369
	5370	//===================================================
	5371	// CLASS Plot
	5372	// Description: Abstract base class for all concrete plot classes
	5373	//===================================================
	5374	class Plot {
	5375	public $numpoints=0;
	5376	public $value;
	5377	public $legend='';
	5378	public $coords=array();
[284]	5379	public $color='black';
[2]	5380	public $hidelegend=false;
	5381	public $line_weight=1;
	5382	public $csimtargets=array(),$csimwintargets=array(); // Array of targets for CSIM
[284]	5383	public $csimareas=''; // Resultant CSIM area tags
	5384	public $csimalts=null; // ALT:s for corresponding target
[2]	5385	public $legendcsimtarget='',$legendcsimwintarget='';
	5386	public $legendcsimalt='';
[284]	5387	protected $weight=1;
[2]	5388	protected $center=false;
[284]	5389
	5390	protected $inputValues;
	5391	protected $isRunningClear = false;
	5392
	5393	function __construct($aDatay,$aDatax=false) {
	5394	$this->numpoints = count($aDatay);
	5395	if( $this->numpoints==0 ) {
	5396	JpGraphError::RaiseL(25121);//("Empty input data array specified for plot. Must have at least one data point.");
	5397	}
	5398
	5399	if (!$this->isRunningClear) {
	5400	$this->inputValues = array();
	5401	$this->inputValues['aDatay'] = $aDatay;
	5402	$this->inputValues['aDatax'] = $aDatax;
	5403	}
	5404
	5405	$this->coords[0]=$aDatay;
	5406	if( is_array($aDatax) ) {
	5407	$this->coords[1]=$aDatax;
	5408	$n = count($aDatax);
	5409	for( $i=0; $i < $n; ++$i ) {
	5410	if( !is_numeric($aDatax[$i]) ) {
	5411	JpGraphError::RaiseL(25070);
	5412	}
	5413	}
	5414	}
	5415	$this->value = new DisplayValue();
[267]	5416	}
[265]	5417
[2]	5418	// Stroke the plot
	5419	// "virtual" function which must be implemented by
	5420	// the subclasses
	5421	function Stroke($aImg,$aXScale,$aYScale) {
[284]	5422	JpGraphError::RaiseL(25122);//("JpGraph: Stroke() must be implemented by concrete subclass to class Plot");
[2]	5423	}
	5424
	5425	function HideLegend($f=true) {
[284]	5426	$this->hidelegend = $f;
[2]	5427	}
	5428
	5429	function DoLegend($graph) {
[284]	5430	if( !$this->hidelegend )
	5431	$this->Legend($graph);
[2]	5432	}
	5433
	5434	function StrokeDataValue($img,$aVal,$x,$y) {
[284]	5435	$this->value->Stroke($img,$aVal,$x,$y);
[2]	5436	}
[284]	5437
	5438	// Set href targets for CSIM
[2]	5439	function SetCSIMTargets($aTargets,$aAlts='',$aWinTargets='') {
[284]	5440	$this->csimtargets=$aTargets;
	5441	$this->csimwintargets=$aWinTargets;
	5442	$this->csimalts=$aAlts;
[2]	5443	}
[284]	5444
[2]	5445	// Get all created areas
	5446	function GetCSIMareas() {
[284]	5447	return $this->csimareas;
	5448	}
	5449
[2]	5450	// "Virtual" function which gets called before any scale
	5451	// or axis are stroked used to do any plot specific adjustment
	5452	function PreStrokeAdjust($aGraph) {
[284]	5453	if( substr($aGraph->axtype,0,4) == "text" && (isset($this->coords[1])) ) {
	5454	JpGraphError::RaiseL(25123);//("JpGraph: You can't use a text X-scale with specified X-coords. Use a \"int\" or \"lin\" scale instead.");
	5455	}
	5456	return true;
[2]	5457	}
[284]	5458
	5459	// Virtual function to the the concrete plot class to make any changes to the graph
	5460	// and scale before the stroke process begins
	5461	function PreScaleSetup($aGraph) {
	5462	// Empty
	5463	}
	5464
[2]	5465	// Get minimum values in plot
	5466	function Min() {
[284]	5467	if( isset($this->coords[1]) ) {
	5468	$x=$this->coords[1];
	5469	}
	5470	else {
	5471	$x='';
	5472	}
	5473	if( $x != '' && count($x) > 0 ) {
	5474	$xm=min($x);
	5475	}
	5476	else {
	5477	$xm=0;
	5478	}
	5479	$y=$this->coords[0];
	5480	$cnt = count($y);
	5481	if( $cnt > 0 ) {
	5482	$i=0;
	5483	while( $i<$cnt && !is_numeric($ym=$y[$i]) ) {
	5484	$i++;
	5485	}
	5486	while( $i < $cnt) {
	5487	if( is_numeric($y[$i]) ) {
	5488	$ym=min($ym,$y[$i]);
	5489	}
	5490	++$i;
	5491	}
	5492	}
	5493	else {
	5494	$ym='';
	5495	}
	5496	return array($xm,$ym);
[2]	5497	}
[284]	5498
[2]	5499	// Get maximum value in plot
	5500	function Max() {
[284]	5501	if( isset($this->coords[1]) ) {
	5502	$x=$this->coords[1];
	5503	}
	5504	else {
	5505	$x='';
	5506	}
[2]	5507
[284]	5508	if( $x!='' && count($x) > 0 ) {
	5509	$xm=max($x);
	5510	}
	5511	else {
	5512	$xm = $this->numpoints-1;
	5513	}
	5514	$y=$this->coords[0];
	5515	if( count($y) > 0 ) {
	5516	$cnt = count($y);
	5517	$i=0;
	5518	while( $i<$cnt && !is_numeric($ym=$y[$i]) ) {
	5519	$i++;
	5520	}
	5521	while( $i < $cnt ) {
	5522	if( is_numeric($y[$i]) ) {
	5523	$ym=max($ym,$y[$i]);
	5524	}
	5525	++$i;
	5526	}
	5527	}
	5528	else {
	5529	$ym='';
	5530	}
	5531	return array($xm,$ym);
[2]	5532	}
[284]	5533
[2]	5534	function SetColor($aColor) {
[284]	5535	$this->color=$aColor;
[2]	5536	}
[284]	5537
[2]	5538	function SetLegend($aLegend,$aCSIM='',$aCSIMAlt='',$aCSIMWinTarget='') {
[284]	5539	$this->legend = $aLegend;
	5540	$this->legendcsimtarget = $aCSIM;
	5541	$this->legendcsimwintarget = $aCSIMWinTarget;
	5542	$this->legendcsimalt = $aCSIMAlt;
[2]	5543	}
	5544
	5545	function SetWeight($aWeight) {
[284]	5546	$this->weight=$aWeight;
[2]	5547	}
[284]	5548
[2]	5549	function SetLineWeight($aWeight=1) {
[284]	5550	$this->line_weight=$aWeight;
[2]	5551	}
[284]	5552
[2]	5553	function SetCenter($aCenter=true) {
[284]	5554	$this->center = $aCenter;
[2]	5555	}
[284]	5556
[2]	5557	// This method gets called by Graph class to plot anything that should go
	5558	// into the margin after the margin color has been set.
	5559	function StrokeMargin($aImg) {
[284]	5560	return true;
[2]	5561	}
	5562
	5563	// Framework function the chance for each plot class to set a legend
	5564	function Legend($aGraph) {
[284]	5565	if( $this->legend != '' ) {
	5566	$aGraph->legend->Add($this->legend,$this->color,'',0,$this->legendcsimtarget,$this->legendcsimalt,$this->legendcsimwintarget);
	5567	}
[2]	5568	}
	5569
[284]	5570	function Clear() {
	5571	$this->isRunningClear = true;
[346]	5572	Plot::__construct($this->inputValues['aDatay'], $this->inputValues['aDatax']);
[284]	5573	$this->isRunningClear = false;
[2]	5574	}
	5575
[284]	5576	} // Class
[2]	5577
	5578
[284]	5579	// Provide a deterministic list of new colors whenever the getColor() method
	5580	// is called. Used to automatically set colors of plots.
	5581	class ColorFactory {
[2]	5582
[284]	5583	static private $iIdx = 0;
	5584	static private $iColorList = array(
	5585	'black',
	5586	'blue',
	5587	'orange',
	5588	'darkgreen',
	5589	'red',
	5590	'AntiqueWhite3',
	5591	'aquamarine3',
	5592	'azure4',
	5593	'brown',
	5594	'cadetblue3',
	5595	'chartreuse4',
	5596	'chocolate',
	5597	'darkblue',
	5598	'darkgoldenrod3',
	5599	'darkorchid3',
	5600	'darksalmon',
	5601	'darkseagreen4',
	5602	'deepskyblue2',
	5603	'dodgerblue4',
	5604	'gold3',
	5605	'hotpink',
	5606	'lawngreen',
	5607	'lightcoral',
	5608	'lightpink3',
	5609	'lightseagreen',
	5610	'lightslateblue',
	5611	'mediumpurple',
	5612	'olivedrab',
	5613	'orangered1',
	5614	'peru',
	5615	'slategray',
	5616	'yellow4',
	5617	'springgreen2');
	5618	static private $iNum = 33;
[2]	5619
[284]	5620	static function getColor() {
	5621	if( ColorFactory::$iIdx >= ColorFactory::$iNum )
	5622	ColorFactory::$iIdx = 0;
	5623	return ColorFactory::$iColorList[ColorFactory::$iIdx++];
[2]	5624	}
	5625
	5626	}
	5627
	5628	// <EOF>
	5629	?>

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source: trunk/client/modules/Elezioni/grafici/jpgraph.php@ 388

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