php图形组件之jpgraph.

<?php //======================================================================= // File: JPGRAPH.PHP // Description: PHP Graph Plotting library. Base module. // Created: 2001-01-08 // Ver: $Id: jpgraph.php 1002 2008-06-09 20:24:37Z ljp $ // // Copyright (c) Aditus Consulting. All rights reserved. //======================================================================== require_once('jpg-config.inc.php'); require_once('jpgraph_gradient.php'); require_once('jpgraph_errhandler.inc.php'); require_once('jpgraph_ttf.inc.php'); // Version info DEFINE('JPG_VERSION','2.3.3'); // Minimum required PHP version DEFINE('MIN_PHPVERSION','5.1.0'); // Should the image be a truecolor image? DEFINE('USE_TRUECOLOR',true); //------------------------------------------------------------------------ // Automatic settings of path for cache and font directory // if they have not been previously specified //------------------------------------------------------------------------ if(USE_CACHE) { if (!defined('CACHE_DIR')) { if ( strstr( PHP_OS, 'WIN') ) { if( empty($_SERVER['TEMP']) ) { $t = new ErrMsgText(); $msg = $t->Get(11,$file,$lineno); die($msg); } else { DEFINE('CACHE_DIR', $_SERVER['TEMP'] . '/'); } } else { DEFINE('CACHE_DIR','/tmp/jpgraph_cache/'); } } } elseif( !defined('CACHE_DIR') ) { DEFINE('CACHE_DIR', ''); } if (!defined('TTF_DIR')) { if (strstr( PHP_OS, 'WIN') ) { $sroot = getenv('SystemRoot'); if( empty($sroot) ) { $t = new ErrMsgText(); $msg = $t->Get(12,$file,$lineno); die($msg); } else { DEFINE('TTF_DIR', $sroot.'/fonts/'); } } else { DEFINE('TTF_DIR','/usr/X11R6/lib/X11/fonts/truetype/'); } } if (!defined('MBTTF_DIR')) { DEFINE('MBTTF_DIR','/usr/share/fonts/ja/TrueType/'); } //------------------------------------------------------------------ // Constants which are used as parameters for the method calls //------------------------------------------------------------------ // Tick density DEFINE("TICKD_DENSE",1); DEFINE("TICKD_NORMAL",2); DEFINE("TICKD_SPARSE",3); DEFINE("TICKD_VERYSPARSE",4); // Side for ticks and labels. DEFINE("SIDE_LEFT",-1); DEFINE("SIDE_RIGHT",1); DEFINE("SIDE_DOWN",-1); DEFINE("SIDE_BOTTOM",-1); DEFINE("SIDE_UP",1); DEFINE("SIDE_TOP",1); // Legend type stacked vertical or horizontal DEFINE("LEGEND_VERT",0); DEFINE("LEGEND_HOR",1); // Mark types for plot marks DEFINE("MARK_SQUARE",1); DEFINE("MARK_UTRIANGLE",2); DEFINE("MARK_DTRIANGLE",3); DEFINE("MARK_DIAMOND",4); DEFINE("MARK_CIRCLE",5); DEFINE("MARK_FILLEDCIRCLE",6); DEFINE("MARK_CROSS",7); DEFINE("MARK_STAR",8); DEFINE("MARK_X",9); DEFINE("MARK_LEFTTRIANGLE",10); DEFINE("MARK_RIGHTTRIANGLE",11); DEFINE("MARK_FLASH",12); DEFINE("MARK_IMG",13); DEFINE("MARK_FLAG1",14); DEFINE("MARK_FLAG2",15); DEFINE("MARK_FLAG3",16); DEFINE("MARK_FLAG4",17); // Builtin images DEFINE("MARK_IMG_PUSHPIN",50); DEFINE("MARK_IMG_SPUSHPIN",50); DEFINE("MARK_IMG_LPUSHPIN",51); DEFINE("MARK_IMG_DIAMOND",52); DEFINE("MARK_IMG_SQUARE",53); DEFINE("MARK_IMG_STAR",54); DEFINE("MARK_IMG_BALL",55); DEFINE("MARK_IMG_SBALL",55); DEFINE("MARK_IMG_MBALL",56); DEFINE("MARK_IMG_LBALL",57); DEFINE("MARK_IMG_BEVEL",58); // Inline defines DEFINE("INLINE_YES",1); DEFINE("INLINE_NO",0); // Format for background images DEFINE("BGIMG_FILLPLOT",1); DEFINE("BGIMG_FILLFRAME",2); DEFINE("BGIMG_COPY",3); DEFINE("BGIMG_CENTER",4); // Depth of objects DEFINE("DEPTH_BACK",0); DEFINE("DEPTH_FRONT",1); // Direction DEFINE("VERTICAL",1); DEFINE("HORIZONTAL",0); // Axis styles for scientific style axis DEFINE('AXSTYLE_SIMPLE',1); DEFINE('AXSTYLE_BOXIN',2); DEFINE('AXSTYLE_BOXOUT',3); DEFINE('AXSTYLE_YBOXIN',4); DEFINE('AXSTYLE_YBOXOUT',5); // Style for title backgrounds DEFINE('TITLEBKG_STYLE1',1); DEFINE('TITLEBKG_STYLE2',2); DEFINE('TITLEBKG_STYLE3',3); DEFINE('TITLEBKG_FRAME_NONE',0); DEFINE('TITLEBKG_FRAME_FULL',1); DEFINE('TITLEBKG_FRAME_BOTTOM',2); DEFINE('TITLEBKG_FRAME_BEVEL',3); DEFINE('TITLEBKG_FILLSTYLE_HSTRIPED',1); DEFINE('TITLEBKG_FILLSTYLE_VSTRIPED',2); DEFINE('TITLEBKG_FILLSTYLE_SOLID',3); // Style for background gradient fills DEFINE('BGRAD_FRAME',1); DEFINE('BGRAD_MARGIN',2); DEFINE('BGRAD_PLOT',3); // Width of tab titles DEFINE('TABTITLE_WIDTHFIT',0); DEFINE('TABTITLE_WIDTHFULL',-1); // Defines for 3D skew directions DEFINE('SKEW3D_UP',0); DEFINE('SKEW3D_DOWN',1); DEFINE('SKEW3D_LEFT',2); DEFINE('SKEW3D_RIGHT',3); // Line styles DEFINE('LINESTYLE_SOLID',1); DEFINE('LINESTYLE_DOTTED',2); DEFINE('LINESTYLE_DASHED',3); DEFINE('LINESTYLE_LONGDASH',4); // For internal use only DEFINE("_JPG_DEBUG",false); DEFINE("_FORCE_IMGTOFILE",false); DEFINE("_FORCE_IMGDIR",'/tmp/jpgimg/'); require_once('gd_image.inc.php'); function CheckPHPVersion($aMinVersion) { list($majorC, $minorC, $editC) = split('[/.-]', PHP_VERSION); list($majorR, $minorR, $editR) = split('[/.-]', $aMinVersion); if ($majorC != $majorR) return false; if ($majorC < $majorR) return false; // same major - check ninor if ($minorC > $minorR) return true; if ($minorC < $minorR) return false; // and same minor if ($editC >= $editR) return true; return true; } // // Make sure PHP version is high enough // if( !CheckPHPVersion(MIN_PHPVERSION) ) { JpGraphError::RaiseL(13,PHP_VERSION,MIN_PHPVERSION); die(); } // // Make GD sanity check // if( !function_exists("imagetypes") || !function_exists('imagecreatefromstring') ) { JpGraphError::RaiseL(25001); //("This PHP installation is not configured with the GD library. Please recompile PHP with GD support to run JpGraph. (Neither function imagetypes() nor imagecreatefromstring() does exist)"); } // // Setup PHP error handler // function _phpErrorHandler($errno,$errmsg,$filename, $linenum, $vars) { // Respect current error level if( $errno & error_reporting() ) { JpGraphError::RaiseL(25003,basename($filename),$linenum,$errmsg); } } if( INSTALL_PHP_ERR_HANDLER ) { set_error_handler("_phpErrorHandler"); } // //Check if there were any warnings, perhaps some wrong includes by the //user // if( isset($GLOBALS['php_errormsg']) && CATCH_PHPERRMSG && !preg_match('/|Deprecated|/i', $GLOBALS['php_errormsg']) ) { JpGraphError::RaiseL(25004,$GLOBALS['php_errormsg']); } // Useful mathematical function function sign($a) {return $a >= 0 ? 1 : -1;} // Utility function to generate an image name based on the filename we // are running from and assuming we use auto detection of graphic format // (top level), i.e it is safe to call this function // from a script that uses JpGraph function GenImgName() { // Determine what format we should use when we save the images $supported = imagetypes(); if( $supported & IMG_PNG ) $img_format="png"; elseif( $supported & IMG_GIF ) $img_format="gif"; elseif( $supported & IMG_JPG ) $img_format="jpeg"; elseif( $supported & IMG_WBMP ) $img_format="wbmp"; elseif( $supported & IMG_XPM ) $img_format="xpm"; if( !isset($_SERVER['PHP_SELF']) ) JpGraphError::RaiseL(25005); //(" 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."); $fname = basename($_SERVER['PHP_SELF']); if( !empty($_SERVER['QUERY_STRING']) ) { $q = @$_SERVER['QUERY_STRING']; $fname .= '_'.preg_replace("/\W/", "_", $q).'.'.$img_format; } else { $fname = substr($fname,0,strlen($fname)-4).'.'.$img_format; } return $fname; } //=================================================== // CLASS JpgTimer // Description: General timing utility class to handle // time measurement of generating graphs. Multiple // timers can be started. //=================================================== class JpgTimer { private $start, $idx; //--------------- // CONSTRUCTOR function JpgTimer() { $this->idx=0; } //--------------- // PUBLIC METHODS // Push a new timer start on stac