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<?php
/*=======================================================================
// File: JPGRAPH_CANVAS.PHP
// Description: Canvas drawing extension for JpGraph
// Created: 2001-01-08
// Author: Johan Persson (johanp@aditus.nu)
// Ver: $Id: jpgraph_canvas.php 21 2005-05-30 20:35:34Z ljp $
//
// Copyright (c) Aditus Consulting. All rights reserved.
//========================================================================
*/
//===================================================
// CLASS CanvasGraph
// Description: Creates a simple canvas graph which
// might be used together with the basic Image drawing
// primitives. Useful to auickoly produce some arbitrary
// graphic which benefits from all the functionality in the
// graph liek caching for example.
//===================================================
class CanvasGraph extends Graph {
//---------------
// CONSTRUCTOR
function CanvasGraph($aWidth=300,$aHeight=200,$aCachedName="",$timeout=0,$inline=1) {
$this->Graph($aWidth,$aHeight,$aCachedName,$timeout,$inline);
}
//---------------
// PUBLIC METHODS
function InitFrame() {
$this->StrokePlotArea();
}
// Method description
function Stroke($aStrokeFileName="") {
if( $this->texts != null ) {
for($i=0; $i<count($this->texts); ++$i) {
$this->texts[$i]->Stroke($this->img);
}
}
$this->StrokeTitles();
// Should we do any final image transformation
if( $this->iImgTrans ) {
if( !class_exists('ImgTrans') ) {
require_once('jpgraph_imgtrans.php');
}
$tform = new ImgTrans($this->img->img);
$this->img->img = $tform->Skew3D($this->iImgTransHorizon,$this->iImgTransSkewDist,
$this->iImgTransDirection,$this->iImgTransHighQ,
$this->iImgTransMinSize,$this->iImgTransFillColor,
$this->iImgTransBorder);
}
// If the filename is given as the special _IMG_HANDLER
// then the image handler is returned and the image is NOT
// streamed back
if( $aStrokeFileName == _IMG_HANDLER ) {
return $this->img->img;
}
else {
// Finally stream the generated picture
$this->cache->PutAndStream($this->img,$this->cache_name,$this->inline,$aStrokeFileName);
return true;
}
}
} // Class
/* EOF */
?>
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