jpgraph_plotmark.inc
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上传日期:2010-02-11
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- <?php
- //=======================================================================
- // File: JPGRAPH_PLOTMARK.PHP
- // Description: Class file. Handles plotmarks
- // Created: 2003-03-21
- // Author: Johan Persson (johanp@aditus.nu)
- // Ver: $Id: jpgraph_plotmark.inc,v 1.1 2003/10/10 03:37:56 wwf Exp $
- //
- // License: This code is released under QPL 1.0
- // Copyright (C) 2003 Johan Persson
- //========================================================================
- //========================================================================
- // CLASS ImgData
- // Description: Base class for all image data classes that contains the
- // real image data.
- //========================================================================
- class ImgData {
- var $name = ''; // Each subclass gives a name
- var $an = array(); // Data array names
- var $colors = array(); // Available colors
- var $index = array(); // Index for colors
- var $maxidx = 0 ; // Max color index
- var $anchor_x=0.5, $anchor_y=0.5 ; // Where is the center of the image
- // Create a GD image from the data and return a GD handle
- function GetImg($aMark,$aIdx) {
- $n = $this->an[$aMark];
- if( is_string($aIdx) ) {
- if( !in_array($aIdx,$this->colors) ) {
- JpGraphError::Raise('This marker "'.($this->name).'" does not exist in color: '.$aIdx);
- die();
- }
- $idx = $this->index[$aIdx];
- }
- elseif( !is_integer($aIdx) ||
- (is_integer($aIdx) && $aIdx > $this->maxidx ) ) {
- JpGraphError::Raise('Mark color index too large for marker "'.($this->name).'"');
- }
- else
- $idx = $aIdx ;
- return imagecreatefromstring(base64_decode($this->{$n}[$idx][1]));
- }
- function GetAnchor() {
- return array($this->anchor_x,$this->anchor_y);
- }
- }
- //===================================================
- // CLASS PlotMark
- // Description: Handles the plot marks in graphs
- //===================================================
- class PlotMark {
- var $title, $show=true;
- var $type,$weight=1;
- var $color="black", $width=4, $fill_color="blue";
- var $yvalue,$xvalue='',$csimtarget,$csimalt,$csimareas;
- var $iFormatCallback="";
- var $iFormatCallback2="";
- var $markimg='',$iScale=1.0;
- var $oldfilename='',$iFileName='';
- var $imgdata_balls = null;
- var $imgdata_diamonds = null;
- var $imgdata_squares = null;
- var $imgdata_bevels = null;
- var $imgdata_stars = null;
- var $imgdata_pushpins = null;
- //--------------
- // CONSTRUCTOR
- function PlotMark() {
- $this->title = new Text();
- $this->title->Hide();
- $this->csimareas = '';
- $this->csimalt = '';
- $this->type=-1;
- }
- //---------------
- // PUBLIC METHODS
- function SetType($aType,$aFileName='',$aScale=1.0) {
- $this->type = $aType;
- if( $aType == MARK_IMG && $aFileName=='' ) {
- JpGraphError::Raise('A filename must be specified if you set the mark type to MARK_IMG.');
- }
- $this->iFileName = $aFileName;
- $this->iScale = $aScale;
- }
-
- function SetCallback($aFunc) {
- $this->iFormatCallback = $aFunc;
- }
- function SetCallbackYX($aFunc) {
- $this->iFormatCallback2 = $aFunc;
- }
-
- function GetType() {
- return $this->type;
- }
-
- function SetColor($aColor) {
- $this->color=$aColor;
- }
-
- function SetFillColor($aFillColor) {
- $this->fill_color = $aFillColor;
- }
- function SetWeight($aWeight) {
- $this->weight = $aWeight;
- }
- // Synonym for SetWidth()
- function SetSize($aWidth) {
- $this->width=$aWidth;
- }
-
- function SetWidth($aWidth) {
- $this->width=$aWidth;
- }
- function SetDefaultWidth() {
- switch( $this->type ) {
- case MARK_CIRCLE:
- case MARK_FILLEDCIRCLE:
- $this->width=4;
- break;
- default:
- $this->width=7;
- }
- }
-
- function GetWidth() {
- return $this->width;
- }
-
- function Hide($aHide=true) {
- $this->show = !$aHide;
- }
-
- function Show($aShow=true) {
- $this->show = $aShow;
- }
- function SetCSIMAltVal($aY,$aX='') {
- $this->yvalue=$aY;
- $this->xvalue=$aX;
- }
-
- function SetCSIMTarget($aTarget) {
- $this->csimtarget=$aTarget;
- }
-
- function SetCSIMAlt($aAlt) {
- $this->csimalt=$aAlt;
- }
-
- function GetCSIMAreas(){
- return $this->csimareas;
- }
-
- function AddCSIMPoly($aPts) {
- $coords = round($aPts[0]).", ".round($aPts[1]);
- $n = count($aPts)/2;
- for( $i=1; $i < $n; ++$i){
- $coords .= ", ".round($aPts[2*$i]).", ".round($aPts[2*$i+1]);
- }
- $this->csimareas="";
- if( !empty($this->csimtarget) ) {
- $this->csimareas .= "<area shape="poly" coords="$coords" href="".$this->csimtarget.""";
- if( !empty($this->csimalt) ) {
- $tmp=sprintf($this->csimalt,$this->yvalue,$this->xvalue);
- $this->csimareas .= " alt="$tmp" title="$tmp"";
- }
- $this->csimareas .= ">n";
- }
- }
-
- function AddCSIMCircle($x,$y,$r) {
- $x = round($x); $y=round($y); $r=round($r);
- $this->csimareas="";
- if( !empty($this->csimtarget) ) {
- $this->csimareas .= "<area shape="circle" coords="$x,$y,$r" href="".$this->csimtarget.""";
- if( !empty($this->csimalt) ) {
- $tmp=sprintf($this->csimalt,$this->yvalue,$this->xvalue);
- $this->csimareas .= " alt="$tmp" title="$tmp"";
- }
- $this->csimareas .= ">n";
- }
- }
-
- function Stroke($img,$x,$y) {
- if( !$this->show ) return;
- if( $this->iFormatCallback != '' || $this->iFormatCallback2 != '' ) {
- if( $this->iFormatCallback != '' ) {
- $f = $this->iFormatCallback;
- list($width,$color,$fcolor) = $f($this->yvalue);
- $filename = $this->iFileName;
- $imgscale = $this->iScale;
- }
- else {
- $f = $this->iFormatCallback2;
- list($width,$color,$fcolor,$filename,$imgscale) = $f($this->yvalue,$this->xvalue);
- if( $filename=="" ) $filename = $this->iFileName;
- if( $imgscale=="" ) $imgscale = $this->iScale;
- }
- if( $width=="" ) $width = $this->width;
- if( $color=="" ) $color = $this->color;
- if( $fcolor=="" ) $fcolor = $this->fill_color;
- }
- else {
- $fcolor = $this->fill_color;
- $color = $this->color;
- $width = $this->width;
- $filename = $this->iFileName;
- $imgscale = $this->iScale;
- }
- if( $this->type == MARK_IMG || $this->type >= MARK_IMG_PUSHPIN ) {
- // Note: For the builtin images we use the "filename" parameter
- // to denote the color
- $anchor_x = 0.5;
- $anchor_y = 0.5;
- switch( $this->type ) {
- case MARK_IMG :
- // Load an image and use that as a marker
- // Small optimization, if we have already read an image don't
- // waste time reading it again.
- if( $this->markimg == '' || !($this->oldfilename === $filename) ) {
- $this->markimg = Graph::LoadBkgImage('',$filename);
- $this->oldfilename = $filename ;
- }
- break;
- case MARK_IMG_PUSHPIN:
- case MARK_IMG_SPUSHPIN:
- case MARK_IMG_LPUSHPIN:
- if( $this->imgdata_pushpins == null ) {
- require_once 'imgdata_pushpins.inc';
- $this->imgdata_pushpins = new ImgData_PushPins();
- }
- $this->markimg = $this->imgdata_pushpins->GetImg($this->type,$filename);
- list($anchor_x,$anchor_y) = $this->imgdata_pushpins->GetAnchor();
- break;
- case MARK_IMG_SQUARE:
- if( $this->imgdata_squares == null ) {
- require_once 'imgdata_squares.inc';
- $this->imgdata_squares = new ImgData_Squares();
- }
- $this->markimg = $this->imgdata_squares->GetImg($this->type,$filename);
- list($anchor_x,$anchor_y) = $this->imgdata_squares->GetAnchor();
- break;
- case MARK_IMG_STAR:
- if( $this->imgdata_stars == null ) {
- require_once 'imgdata_stars.inc';
- $this->imgdata_stars = new ImgData_Stars();
- }
- $this->markimg = $this->imgdata_stars->GetImg($this->type,$filename);
- list($anchor_x,$anchor_y) = $this->imgdata_stars->GetAnchor();
- break;
- case MARK_IMG_BEVEL:
- if( $this->imgdata_bevels == null ) {
- require_once 'imgdata_bevels.inc';
- $this->imgdata_bevels = new ImgData_Bevels();
- }
- $this->markimg = $this->imgdata_bevels->GetImg($this->type,$filename);
- list($anchor_x,$anchor_y) = $this->imgdata_bevels->GetAnchor();
- break;
- case MARK_IMG_DIAMOND:
- if( $this->imgdata_diamonds == null ) {
- require_once 'imgdata_diamonds.inc';
- $this->imgdata_diamonds = new ImgData_Diamonds();
- }
- $this->markimg = $this->imgdata_diamonds->GetImg($this->type,$filename);
- list($anchor_x,$anchor_y) = $this->imgdata_diamonds->GetAnchor();
- break;
- case MARK_IMG_BALL:
- case MARK_IMG_SBALL:
- case MARK_IMG_MBALL:
- case MARK_IMG_LBALL:
- if( $this->imgdata_balls == null ) {
- require_once 'imgdata_balls.inc';
- $this->imgdata_balls = new ImgData_Balls();
- }
- $this->markimg = $this->imgdata_balls->GetImg($this->type,$filename);
- list($anchor_x,$anchor_y) = $this->imgdata_balls->GetAnchor();
- break;
- }
- $w = imagesx($this->markimg);
- $h = imagesy($this->markimg);
-
- $dw = round($imgscale * $w );
- $dh = round($imgscale * $h );
- $dx = round($x-$dw*$anchor_x);
- $dy = round($y-$dh*$anchor_y);
-
- $this->width = max($dx,$dy);
-
- $cp = $GLOBALS['copyfunc'] ;
- $cp($img->img,$this->markimg,$dx,$dy,0,0,$dw,$dh,$w,$h);
- if( !empty($this->csimtarget) ) {
- $this->csimareas = "<area shape="rect" coords="".
- $dx.','.$dy.','.round($dx+$dw).','.round($dy+$dh).'" '.
- "href="".$this->csimtarget.""";
- if( !empty($this->csimalt) ) {
- $tmp=sprintf($this->csimalt,$this->yvalue,$this->xvalue);
- $this->csimareas .= " alt="$tmp" title="$tmp"";
- }
- $this->csimareas .= ">n";
- }
-
- // Stroke title
- $this->title->Align("center","top");
- $this->title->Stroke($img,$x,$y+round($dh/2));
- return;
- }
- $weight = $this->weight;
- $dx=round($width/2,0);
- $dy=round($width/2,0);
- $pts=0;
- switch( $this->type ) {
- case MARK_SQUARE:
- $c[]=$x-$dx;$c[]=$y-$dy;
- $c[]=$x+$dx;$c[]=$y-$dy;
- $c[]=$x+$dx;$c[]=$y+$dy;
- $c[]=$x-$dx;$c[]=$y+$dy;
- $c[]=$x-$dx;$c[]=$y-$dy;
- $pts=5;
- break;
- case MARK_UTRIANGLE:
- ++$dx;++$dy;
- $c[]=$x-$dx;$c[]=$y+0.87*$dy; // tan(60)/2*$dx
- $c[]=$x;$c[]=$y-0.87*$dy;
- $c[]=$x+$dx;$c[]=$y+0.87*$dy;
- $c[]=$x-$dx;$c[]=$y+0.87*$dy; // tan(60)/2*$dx
- $pts=4;
- break;
- case MARK_DTRIANGLE:
- ++$dx;++$dy;
- $c[]=$x;$c[]=$y+0.87*$dy; // tan(60)/2*$dx
- $c[]=$x-$dx;$c[]=$y-0.87*$dy;
- $c[]=$x+$dx;$c[]=$y-0.87*$dy;
- $c[]=$x;$c[]=$y+0.87*$dy; // tan(60)/2*$dx
- $pts=4;
- break;
- case MARK_DIAMOND:
- $c[]=$x;$c[]=$y+$dy;
- $c[]=$x-$dx;$c[]=$y;
- $c[]=$x;$c[]=$y-$dy;
- $c[]=$x+$dx;$c[]=$y;
- $c[]=$x;$c[]=$y+$dy;
- $pts=5;
- break;
- case MARK_LEFTTRIANGLE:
- $c[]=$x;$c[]=$y;
- $c[]=$x;$c[]=$y+2*$dy;
- $c[]=$x+$dx*2;$c[]=$y;
- $c[]=$x;$c[]=$y;
- $pts=4;
- break;
- case MARK_RIGHTTRIANGLE:
- $c[]=$x-$dx*2;$c[]=$y;
- $c[]=$x;$c[]=$y+2*$dy;
- $c[]=$x;$c[]=$y;
- $c[]=$x-$dx*2;$c[]=$y;
- $pts=4;
- break;
- case MARK_FLASH:
- $dy *= 2;
- $c[]=$x+$dx/2; $c[]=$y-$dy;
- $c[]=$x-$dx+$dx/2; $c[]=$y+$dy*0.7-$dy;
- $c[]=$x+$dx/2; $c[]=$y+$dy*1.3-$dy;
- $c[]=$x-$dx+$dx/2; $c[]=$y+2*$dy-$dy;
- $img->SetLineWeight($weight);
- $img->SetColor($color);
- $img->Polygon($c);
- $img->SetLineWeight(1);
- $this->AddCSIMPoly($c);
- break;
- }
- if( $pts>0 ) {
- $this->AddCSIMPoly($c);
- $img->SetLineWeight($weight);
- $img->SetColor($fcolor);
- $img->FilledPolygon($c);
- $img->SetColor($color);
- $img->Polygon($c);
- $img->SetLineWeight(1);
- }
- elseif( $this->type==MARK_CIRCLE ) {
- $img->SetColor($color);
- $img->Circle($x,$y,$width);
- $this->AddCSIMCircle($x,$y,$width);
- }
- elseif( $this->type==MARK_FILLEDCIRCLE ) {
- $img->SetColor($fcolor);
- $img->FilledCircle($x,$y,$width);
- $img->SetColor($color);
- $img->Circle($x,$y,$width+1);
- $this->AddCSIMCircle($x,$y,$width);
- }
- elseif( $this->type==MARK_CROSS ) {
- // Oversize by a pixel to match the X
- $img->SetColor($color);
- $img->SetLineWeight($weight);
- $img->Line($x,$y+$dy+1,$x,$y-$dy-1);
- $img->Line($x-$dx-1,$y,$x+$dx+1,$y);
- $this->AddCSIMCircle($x,$y,$dx);
- }
- elseif( $this->type==MARK_X ) {
- $img->SetColor($color);
- $img->SetLineWeight($weight);
- $img->Line($x+$dx,$y+$dy,$x-$dx,$y-$dy);
- $img->Line($x-$dx,$y+$dy,$x+$dx,$y-$dy);
- $this->AddCSIMCircle($x,$y,$dx+$dy);
- }
- elseif( $this->type==MARK_STAR ) {
- $img->SetColor($color);
- $img->SetLineWeight($weight);
- $img->Line($x+$dx,$y+$dy,$x-$dx,$y-$dy);
- $img->Line($x-$dx,$y+$dy,$x+$dx,$y-$dy);
- // Oversize by a pixel to match the X
- $img->Line($x,$y+$dy+1,$x,$y-$dy-1);
- $img->Line($x-$dx-1,$y,$x+$dx+1,$y);
- $this->AddCSIMCircle($x,$y,$dx+$dy);
- }
-
- // Stroke title
- $this->title->Align("center","center");
- $this->title->Stroke($img,$x,$y);
- }
- } // Class
- ?>