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//=======================================================================
// File: JPGRAPH_PLOTMARK.PHP
// Description: Class file. Handles plotmarks
// Created: 2003-03-21
// Author: Johan Persson (johanp@aditus.nu)
// Ver: $Id: jpgraph_plotmark.inc 41 2005-06-06 10:46:10Z ljp $
//
// Copyright (c) Aditus Consulting. All rights reserved.
//========================================================================
//========================================================================
// 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 = $aIdx ;
return Image::CreateFromString(base64_decode($this->{$n}[$idx][1]));
}
function GetAnchor() {
return array($this->anchor_x,$this->anchor_y);
}
}
// Keep a global flag cache to reduce memory usage
$_gFlagCache=array(
1 => null,
2 => null,
3 => null,
4 => null,
);
// Only supposed to b called as statics
class FlagCache {
function GetFlagImgByName($aSize,$aName) {
global $_gFlagCache;
require_once('jpgraph_flags.php');
if( $_gFlagCache[$aSize] === null ) {
$_gFlagCache[$aSize] =& new FlagImages($aSize);
}
$f =& $_gFlagCache[$aSize];
$idx = $f->GetIdxByName($aName,$aFullName);
return $f->GetImgByIdx($idx);
}
}
//===================================================
// 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);
$this->csimareas .= " title=\"$tmp\"";
}
$this->csimareas .= " alt=\"$tmp\" />\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);
$this->csimareas .= " title=\"$tmp\"";
}
$this->csimareas .= " alt=\"$tmp\" />\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) = call_user_func($f,$this->yvalue);
$filename = $this->iFileName;
$imgscale = $this->iScale;
}
else {
$f = $this->iFormatCallback2;
list($width,$color,$fcolor,$filename,$imgscale) = call_user_func($f,$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_FLAG1 && $this->type <= MARK_FLAG4 ) ||
$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_FLAG1:
case MARK_FLAG2:
case MARK_FLAG3:
case MARK_FLAG4:
$this->markimg = FlagCache::GetFlagImgByName($this->type-MARK_FLAG1+1,$filename);
break;
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 = $img->GetWidth($this->markimg);
$h = $img->GetHeight($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);
$img->Copy($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);
$this->csimareas .= " title=\"$tmp\"";
}
$this->csimareas .= " alt=\"$tmp\" />\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);
$this->AddCSIMCircle($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
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