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/*=======================================================================
// File: JPGRAPH_BAR.PHP
// Description: Bar plot extension for JpGraph
// Created: 2001-01-08
// Author: Johan Persson (johanp@aditus.nu)
// Ver: $Id: jpgraph_bar.php 76 2005-06-25 21:59:52Z ljp $
//
// Copyright (c) Aditus Consulting. All rights reserved.
//========================================================================
*/
require_once('jpgraph_plotband.php');
// Pattern for Bars
DEFINE('PATTERN_DIAG1',1);
DEFINE('PATTERN_DIAG2',2);
DEFINE('PATTERN_DIAG3',3);
DEFINE('PATTERN_DIAG4',4);
DEFINE('PATTERN_CROSS1',5);
DEFINE('PATTERN_CROSS2',6);
DEFINE('PATTERN_CROSS3',7);
DEFINE('PATTERN_CROSS4',8);
DEFINE('PATTERN_STRIPE1',9);
DEFINE('PATTERN_STRIPE2',10);
//===================================================
// CLASS BarPlot
// Description: Main code to produce a bar plot
//===================================================
class BarPlot extends Plot {
var $width=0.4; // in percent of major ticks
var $abswidth=-1; // Width in absolute pixels
var $fill=false,$fill_color="lightblue"; // Default is to fill with light blue
var $ybase=0; // Bars start at 0
var $align="center";
var $grad=false,$grad_style=1;
var $grad_fromcolor=array(50,50,200),$grad_tocolor=array(255,255,255);
var $bar_shadow=false;
var $bar_shadow_color="black";
var $bar_shadow_hsize=3,$bar_shadow_vsize=3;
var $valuepos='top';
var $iPattern=-1,$iPatternDensity=80,$iPatternColor='black';
//---------------
// CONSTRUCTOR
function BarPlot(&$datay,$datax=false) {
$this->Plot($datay,$datax);
++$this->numpoints;
}
//---------------
// PUBLIC METHODS
// Set a drop shadow for the bar (or rather an "up-right" shadow)
function SetShadow($color="black",$hsize=3,$vsize=3,$show=true) {
$this->bar_shadow=$show;
$this->bar_shadow_color=$color;
$this->bar_shadow_vsize=$vsize;
$this->bar_shadow_hsize=$hsize;
// Adjust the value margin to compensate for shadow
$this->value->margin += $vsize;
}
// DEPRECATED use SetYBase instead
function SetYMin($aYStartValue) {
//die("JpGraph Error: Deprecated function SetYMin. Use SetYBase() instead.");
$this->ybase=$aYStartValue;
}
// Specify the base value for the bars
function SetYBase($aYStartValue) {
$this->ybase=$aYStartValue;
}
function Legend(&$graph) {
if( $this->grad && $this->legend!="" && !$this->fill ) {
$color=array($this->grad_fromcolor,$this->grad_tocolor);
// In order to differentiate between gradients and cooors specified as an RGB triple
$graph->legend->Add($this->legend,$color,"",-$this->grad_style,
$this->legendcsimtarget,$this->legendcsimalt);
}
elseif( $this->legend!="" && ($this->iPattern > -1 || is_array($this->iPattern)) ) {
if( is_array($this->iPattern) ) {
$p1 = $this->iPattern[0];
$p2 = $this->iPatternColor[0];
$p3 = $this->iPatternDensity[0];
}
else {
$p1 = $this->iPattern;
$p2 = $this->iPatternColor;
$p3 = $this->iPatternDensity;
}
$color = array($p1,$p2,$p3,$this->fill_color);
// A kludge: Too mark that we add a pattern we use a type value of < 100
$graph->legend->Add($this->legend,$color,"",-101,
$this->legendcsimtarget,$this->legendcsimalt);
}
elseif( $this->fill_color && $this->legend!="" ) {
if( is_array($this->fill_color) ) {
$graph->legend->Add($this->legend,$this->fill_color[0],"",0,
$this->legendcsimtarget,$this->legendcsimalt);
}
else {
$graph->legend->Add($this->legend,$this->fill_color,"",0,
$this->legendcsimtarget,$this->legendcsimalt);
}
}
}
// Gets called before any axis are stroked
function PreStrokeAdjust(&$graph) {
parent::PreStrokeAdjust($graph);
$cn = strtolower(get_class($this));
// If we are using a log Y-scale we want the base to be at the
// minimum Y-value unless the user have specifically set some other
// value than the default.
if( substr($graph->axtype,-3,3)=="log" && $this->ybase==0 )
$this->ybase = $graph->yaxis->scale->GetMinVal();
// For a "text" X-axis scale we will adjust the
// display of the bars a little bit.
if( substr($graph->axtype,0,3)=="tex" ) {
// Position the ticks between the bars
$graph->xaxis->scale->ticks->SetXLabelOffset(0.5,0);
// Center the bars
if( $this->abswidth > -1 ) {
$graph->SetTextScaleAbsCenterOff($this->abswidth);
}
else {
if( $this->align == "center" )
$graph->SetTextScaleOff(0.5-$this->width/2);
elseif( $this->align == "right" )
$graph->SetTextScaleOff(1-$this->width);
}
}
elseif( $cn !== 'accbarplot' && $cn !== 'groupbarplot') {
// We only set an absolute width for linear and int scale
// for text scale the width will be set to a fraction of
// the majstep width.
if( $this->abswidth == -1 ) {
// Not set
// set width to a visuable sensible default
$this->abswidth = $graph->img->plotwidth/(2*count($this->coords[0]));
}
}
}
function Min() {
$m = parent::Min();
if( $m[1] >= $this->ybase )
$m[1] = $this->ybase;
return $m;
}
function Max() {
$m = parent::Max();
if( $m[1] <= $this->ybase )
$m[1] = $this->ybase;
return $m;
}
// Specify width as fractions of the major stepo size
function SetWidth($aFractionWidth) {
$this->width=$aFractionWidth;
}
// Specify width in absolute pixels. If specified this
// overrides SetWidth()
function SetAbsWidth($aWidth) {
$this->abswidth=$aWidth;
}
function SetAlign($aAlign) {
$this->align=$aAlign;
}
function SetNoFill() {
$this->grad = false;
$this->fill_color=false;
$this->fill=false;
}
function SetFillColor($aColor) {
$this->fill = true ;
$this->fill_color=$aColor;
}
function SetFillGradient($from_color,$to_color,$style) {
$this->grad=true;
$this->grad_fromcolor=$from_color;
$this->grad_tocolor=$to_color;
$this->grad_style=$style;
}
function SetValuePos($aPos) {
$this->valuepos = $aPos;
}
function SetPattern($aPattern, $aColor='black'){
if( is_array($aPattern) ) {
$n = count($aPattern);
$this->iPattern = array();
$this->iPatternDensity = array();
if( is_array($aColor) ) {
$this->iPatternColor = array();
if( count($aColor) != $n ) {
JpGraphError::Raise('NUmber of colors is not the same as the number of patterns in BarPlot::SetPattern()');
}
}
else
$this->iPatternColor = $aColor;
for( $i=0; $i < $n; ++$i ) {
$this->_SetPatternHelper($aPattern[$i], $this->iPattern[$i], $this->iPatternDensity[$i]);
if( is_array($aColor) ) {
$this->iPatternColor[$i] = $aColor[$i];
}
}
}
else {
$this->_SetPatternHelper($aPattern, $this->iPattern, $this->iPatternDensity);
$this->iPatternColor = $aColor;
}
}
function _SetPatternHelper($aPattern, &$aPatternValue, &$aDensity){
switch( $aPattern ) {
case PATTERN_DIAG1:
$aPatternValue= 1;
$aDensity = 90;
break;
case PATTERN_DIAG2:
$aPatternValue= 1;
$aDensity = 75;
break;
case PATTERN_DIAG3:
$aPatternValue= 2;
$aDensity = 90;
break;
case PATTERN_DIAG4:
$aPatternValue= 2;
$aDensity = 75;
break;
case PATTERN_CROSS1:
$aPatternValue= 8;
$aDensity = 90;
break;
case PATTERN_CROSS2:
$aPatternValue= 8;
$aDensity = 78;
break;
case PATTERN_CROSS3:
$aPatternValue= 8;
$aDensity = 65;
break;
case PATTERN_CROSS4:
$aPatternValue= 7;
$aDensity = 90;
break;
case PATTERN_STRIPE1:
$aPatternValue= 5;
$aDensity = 95;
break;
case PATTERN_STRIPE2:
$aPatternValue= 5;
$aDensity = 85;
break;
default:
JpGraphError::Raise('Unknown pattern specified in call to BarPlot::SetPattern()');
}
}
function Stroke(&$img,&$xscale,&$yscale) {
$numpoints = count($this->coords[0]);
if( isset($this->coords[1]) ) {
if( count($this->coords[1])!=$numpoints )
JpGraphError::Raise("Number of X and Y points are not equal. Number of X-points:".count($this->coords[1])."Number of Y-points:$numpoints");
else
$exist_x = true;
}
else
$exist_x = false;
$numbars=count($this->coords[0]);
// Use GetMinVal() instead of scale[0] directly since in the case
// of log scale we get a correct value. Log scales will have negative
// values for values < 1 while still not representing negative numbers.
if( $yscale->GetMinVal() >= 0 )
$zp=$yscale->scale_abs[0];
else {
$zp=$yscale->Translate(0);
}
if( $this->abswidth > -1 ) {
$abswidth=$this->abswidth;
}
else
$abswidth=round($this->width*$xscale->scale_factor,0);
// Count potential pattern array to avoid doing the count for each iteration
if( is_array($this->iPattern) ) {
$np = count($this->iPattern);
}
for($i=0; $i < $numbars; ++$i) {
// If value is NULL, or 0 then don't draw a bar at all
if ($this->coords[0][$i] === null ||
$this->coords[0][$i] === '' ||
$this->coords[0][$i] === 0 ) continue;
if( $exist_x ) $x=$this->coords[1][$i];
else $x=$i;
$x=$xscale->Translate($x);
// Comment Note: This confuses the positioning when using acc together with
// grouped bars. Workaround for fixing #191
/*
if( !$xscale->textscale ) {
if($this->align=="center")
$x -= $abswidth/2;
elseif($this->align=="right")
$x -= $abswidth;
}
*/
// Stroke fill color and fill gradient
$pts=array(
$x,$zp,
$x,$yscale->Translate($this->coords[0][$i]),
$x+$abswidth,$yscale->Translate($this->coords[0][$i]),
$x+$abswidth,$zp);
if( $this->grad ) {
$grad = new Gradient($img);
$grad->FilledRectangle($pts[2],$pts[3],
$pts[6],$pts[7],
$this->grad_fromcolor,$this->grad_tocolor,$this->grad_style);
}
elseif( !empty($this->fill_color) ) {
if(is_array($this->fill_color)) {
$img->PushColor($this->fill_color[$i % count($this->fill_color)]);
} else {
$img->PushColor($this->fill_color);
}
$img->FilledPolygon($pts);
$img->PopColor();
}
// Remember value of this bar
$val=$this->coords[0][$i];
if( !empty($val) && !is_numeric($val) ) {
JpGraphError::Raise('All values for a barplot must be numeric. You have specified value['.$i.'] == \''.$val.'\'');
}
// Determine the shadow
if( $this->bar_shadow && $val != 0) {
$ssh = $this->bar_shadow_hsize;
$ssv = $this->bar_shadow_vsize;
// Create points to create a "upper-right" shadow
if( $val > 0 ) {
$sp[0]=$pts[6]; $sp[1]=$pts[7];
$sp[2]=$pts[4]; $sp[3]=$pts[5];
$sp[4]=$pts[2]; $sp[5]=$pts[3];
$sp[6]=$pts[2]+$ssh; $sp[7]=$pts[3]-$ssv;
$sp[8]=$pts[4]+$ssh; $sp[9]=$pts[5]-$ssv;
$sp[10]=$pts[6]+$ssh; $sp[11]=$pts[7]-$ssv;
}
elseif( $val < 0 ) {
$sp[0]=$pts[4]; $sp[1]=$pts[5];
$sp[2]=$pts[6]; $sp[3]=$pts[7];
$sp[4]=$pts[0]; $sp[5]=$pts[1];
$sp[6]=$pts[0]+$ssh; $sp[7]=$pts[1]-$ssv;
$sp[8]=$pts[6]+$ssh; $sp[9]=$pts[7]-$ssv;
$sp[10]=$pts[4]+$ssh; $sp[11]=$pts[5]-$ssv;
}
if( is_array($this->bar_shadow_color) ) {
$numcolors = count($this->bar_shadow_color);
if( $numcolors == 0 ) {
JpGraphError::Raise('You have specified an empty array for shadow colors in the bar plot.');
}
$img->PushColor($this->bar_shadow_color[$i % $numcolors]);
}
else {
$img->PushColor($this->bar_shadow_color);
}
$img->FilledPolygon($sp);
$img->PopColor();
}
// Stroke the pattern
if( is_array($this->iPattern) ) {
$f = new RectPatternFactory();
if( is_array($this->iPatternColor) ) {
$pcolor = $this->iPatternColor[$i % $np];
}
else
$pcolor = $this->iPatternColor;
$prect = $f->Create($this->iPattern[$i % $np],$pcolor,1);
$prect->SetDensity($this->iPatternDensity[$i % $np]);
if( $val < 0 ) {
$rx = $pts[0];
$ry = $pts[1];
}
else {
$rx = $pts[2];
$ry = $pts[3];
}
$width = abs($pts[4]-$pts[0])+1;
$height = abs($pts[1]-$pts[3])+1;
$prect->SetPos(new Rectangle($rx,$ry,$width,$height));
$prect->Stroke($img);
}
else {
if( $this->iPattern > -1 ) {
$f = new RectPatternFactory();
$prect = $f->Create($this->iPattern,$this->iPatternColor,1);
$prect->SetDensity($this->iPatternDensity);
if( $val < 0 ) {
$rx = $pts[0];
$ry = $pts[1];
}
else {
$rx = $pts[2];
$ry = $pts[3];
}
$width = abs($pts[4]-$pts[0])+1;
$height = abs($pts[1]-$pts[3])+1;
$prect->SetPos(new Rectangle($rx,$ry,$width,$height));
$prect->Stroke($img);
}
}
// Stroke the outline of the bar
if( is_array($this->color) )
$img->SetColor($this->color[$i % count($this->color)]);
else
$img->SetColor($this->color);
$pts[] = $pts[0];
$pts[] = $pts[1];
if( $this->weight > 0 ) {
$img->SetLineWeight($this->weight);
$img->Polygon($pts);
}
// Determine how to best position the values of the individual bars
$x=$pts[2]+($pts[4]-$pts[2])/2;
if( $this->valuepos=='top' ) {
$y=$pts[3];
if( $img->a === 90 ) {
if( $val < 0 )
$this->value->SetAlign('right','center');
else
$this->value->SetAlign('left','center');
}
$this->value->Stroke($img,$val,$x,$y);
}
elseif( $this->valuepos=='max' ) {
$y=$pts[3];
if( $img->a === 90 ) {
if( $val < 0 )
$this->value->SetAlign('left','center');
else
$this->value->SetAlign('right','center');
}
else {
$this->value->SetAlign('center','top');
}
$this->value->SetMargin(-3);
$this->value->Stroke($img,$val,$x,$y);
}
elseif( $this->valuepos=='center' ) {
$y = ($pts[3] + $pts[1])/2;
$this->value->SetAlign('center','center');
$this->value->SetMargin(0);
$this->value->Stroke($img,$val,$x,$y);
}
elseif( $this->valuepos=='bottom' || $this->valuepos=='min' ) {
$y=$pts[1];
if( $img->a === 90 ) {
if( $val < 0 )
$this->value->SetAlign('right','center');
else
$this->value->SetAlign('left','center');
}
$this->value->SetMargin(3);
$this->value->Stroke($img,$val,$x,$y);
}
else {
JpGraphError::Raise('Unknown position for values on bars :'.$this->valuepos);
}
// Create the client side image map
$rpts = $img->ArrRotate($pts);
$csimcoord=round($rpts[0]).", ".round($rpts[1]);
for( $j=1; $j < 4; ++$j){
$csimcoord .= ", ".round($rpts[2*$j]).", ".round($rpts[2*$j+1]);
}
if( !empty($this->csimtargets[$i]) ) {
$this->csimareas .= '<area shape="poly" coords="'.$csimcoord.'" ';
$this->csimareas .= " href=\"".htmlentities($this->csimtargets[$i])."\"";
if( !empty($this->csimalts[$i]) ) {
$sval=sprintf($this->csimalts[$i],$this->coords[0][$i]);
$this->csimareas .= " title=\"$sval\" ";
}
$this->csimareas .= " alt=\"$sval\" />\n";
}
}
return true;
}
} // Class
//===================================================
// CLASS GroupBarPlot
// Description: Produce grouped bar plots
//===================================================
class GroupBarPlot extends BarPlot {
var $plots;
var $width=0.7;
var $nbrplots=0;
var $numpoints;
//---------------
// CONSTRUCTOR
function GroupBarPlot($plots) {
$this->plots = $plots;
$this->nbrplots = count($plots);
if( $this->nbrplots < 1 ) {
JpGraphError::Raise('You must have at least one barplot in the array to be able to create a Grouped Bar Plot.');
}
$this->numpoints = $plots[0]->numpoints;
}
//---------------
// PUBLIC METHODS
function Legend(&$graph) {
$n = count($this->plots);
for($i=0; $i < $n; ++$i) {
$c = strtolower(get_class($this->plots[$i]));
$sc = is_subclass_of($this->plots[$i],'BarPlot') || is_subclass_of($this->plots[$i],'barplot');
if( $c !== 'barplot' && !$sc ) {
JpGraphError::Raise('One of the objects submitted to GroupBar is not a BarPlot. Make sure that you create the Group Bar plot from an array of BarPlot or AccBarPlot objects. (Class = '.$c.')');
}
$this->plots[$i]->DoLegend($graph);
}
}
function Min() {
list($xmin,$ymin) = $this->plots[0]->Min();
$n = count($this->plots);
for($i=0; $i < $n; ++$i) {
list($xm,$ym) = $this->plots[$i]->Min();
$xmin = max($xmin,$xm);
$ymin = min($ymin,$ym);
}
return array($xmin,$ymin);
}
function Max() {
list($xmax,$ymax) = $this->plots[0]->Max();
$n = count($this->plots);
for($i=0; $i < $n; ++$i) {
list($xm,$ym) = $this->plots[$i]->Max();
$xmax = max($xmax,$xm);
$ymax = max($ymax,$ym);
}
return array($xmax,$ymax);
}
function GetCSIMareas() {
$n = count($this->plots);
$csimareas='';
for($i=0; $i < $n; ++$i) {
$csimareas .= $this->plots[$i]->csimareas;
}
return $csimareas;
}
// Stroke all the bars next to each other
function Stroke(&$img,&$xscale,&$yscale) {
$tmp=$xscale->off;
$n = count($this->plots);
$subwidth = $this->width/$this->nbrplots ;
for( $i=0; $i < $n; ++$i ) {
$this->plots[$i]->ymin=$this->ybase;
$this->plots[$i]->SetWidth($subwidth);
// If the client have used SetTextTickInterval() then
// major_step will be > 1 and the positioning will fail.
// If we assume it is always one the positioning will work
// fine with a text scale but this will not work with
// arbitrary linear scale
$xscale->off = $tmp+$i*round(/*$xscale->ticks->major_step* */
$xscale->scale_factor* $subwidth);
$this->plots[$i]->Stroke($img,$xscale,$yscale);
}
$xscale->off=$tmp;
}
} // Class
//===================================================
// CLASS AccBarPlot
// Description: Produce accumulated bar plots
//===================================================
class AccBarPlot extends BarPlot {
var $plots=null,$nbrplots=0,$numpoints=0;
//---------------
// CONSTRUCTOR
function AccBarPlot($plots) {
$this->plots = $plots;
$this->nbrplots = count($plots);
$this->numpoints = $plots[0]->numpoints;
$this->value = new DisplayValue();
}
//---------------
// PUBLIC METHODS
function Legend(&$graph) {
$n = count($this->plots);
for( $i=$n-1; $i >= 0; --$i ) {
$c = strtolower(get_class($this->plots[$i]));
if( $c !== 'barplot' ) {
JpGraphError::Raise('One of the objects submitted to AccBar is not a BarPlot. Make sure that you create the AccBar plot from an array of BarPlot objects.(Class='.$c.')');
}
$this->plots[$i]->DoLegend($graph);
}
}
function Max() {
list($xmax) = $this->plots[0]->Max();
$nmax=0;
for($i=0; $i<count($this->plots); ++$i) {
$n = count($this->plots[$i]->coords[0]);
$nmax = max($nmax,$n);
list($x) = $this->plots[$i]->Max();
$xmax = max($xmax,$x);
}
for( $i = 0; $i < $nmax; $i++ ) {
// Get y-value for bar $i by adding the
// individual bars from all the plots added.
// It would be wrong to just add the
// individual plots max y-value since that
// would in most cases give to large y-value.
$y=0;
if( $this->plots[0]->coords[0][$i] > 0 )
$y=$this->plots[0]->coords[0][$i];
for( $j = 1; $j < $this->nbrplots; $j++ ) {
if( $this->plots[$j]->coords[0][$i] > 0 )
$y += $this->plots[$j]->coords[0][$i];
}
$ymax[$i] = $y;
}
$ymax = max($ymax);
// Bar always start at baseline
if( $ymax <= $this->ybase )
$ymax = $this->ybase;
return array($xmax,$ymax);
}
function Min() {
$nmax=0;
list($xmin,$ysetmin) = $this->plots[0]->Min();
for($i=0; $i<count($this->plots); ++$i) {
$n = count($this->plots[$i]->coords[0]);
$nmax = max($nmax,$n);
list($x,$y) = $this->plots[$i]->Min();
$xmin = Min($xmin,$x);
$ysetmin = Min($y,$ysetmin);
}
for( $i = 0; $i < $nmax; $i++ ) {
// Get y-value for bar $i by adding the
// individual bars from all the plots added.
// It would be wrong to just add the
// individual plots max y-value since that
// would in most cases give to large y-value.
$y=$this->plots[0]->coords[0][$i];
for( $j = 1; $j < $this->nbrplots; $j++ ) {
$y += $this->plots[ $j ]->coords[0][$i];
}
$ymin[$i] = $y;
}
$ymin = Min($ysetmin,Min($ymin));
// Bar always start at baseline
if( $ymin >= $this->ybase )
$ymin = $this->ybase;
return array($xmin,$ymin);
}
// Stroke acc bar plot
function Stroke(&$img,&$xscale,&$yscale) {
$pattern=NULL;
$img->SetLineWeight($this->weight);
for($i=0; $i < $this->numpoints-1; $i++) {
$accy = 0;
$accy_neg = 0;
for($j=0; $j < $this->nbrplots; ++$j ) {
$img->SetColor($this->plots[$j]->color);
if ( $this->plots[$j]->coords[0][$i] >= 0) {
$yt=$yscale->Translate($this->plots[$j]->coords[0][$i]+$accy);
$accyt=$yscale->Translate($accy);
$accy+=$this->plots[$j]->coords[0][$i];
}
else {
//if ( $this->plots[$j]->coords[0][$i] < 0 || $accy_neg < 0 ) {
$yt=$yscale->Translate($this->plots[$j]->coords[0][$i]+$accy_neg);
$accyt=$yscale->Translate($accy_neg);
$accy_neg+=$this->plots[$j]->coords[0][$i];
}
$xt=$xscale->Translate($i);
if( $this->abswidth > -1 )
$abswidth=$this->abswidth;
else
$abswidth=round($this->width*$xscale->scale_factor,0);
$pts=array($xt,$accyt,$xt,$yt,$xt+$abswidth,$yt,$xt+$abswidth,$accyt);
if( $this->bar_shadow ) {
$ssh = $this->bar_shadow_hsize;
$ssv = $this->bar_shadow_vsize;
// We must also differ if we are a positive or negative bar.
if( $j === 0 ) {
// This gets extra complicated since we have to
// see all plots to see if we are negative. It could
// for example be that all plots are 0 until the very
// last one. We therefore need to save the initial setup
// for both the negative and positive case
// In case the final bar is positive
$sp[0]=$pts[6]+1; $sp[1]=$pts[7];
$sp[2]=$pts[6]+$ssh; $sp[3]=$pts[7]-$ssv;
// In case the final bar is negative
$nsp[0]=$pts[0]; $nsp[1]=$pts[1];
$nsp[2]=$pts[0]+$ssh; $nsp[3]=$pts[1]-$ssv;
$nsp[4]=$pts[6]+$ssh; $nsp[5]=$pts[7]-$ssv;
$nsp[10]=$pts[6]+1; $nsp[11]=$pts[7];
}
if( $j === $this->nbrplots-1 ) {
// If this is the last plot of the bar and
// the total value is larger than 0 then we
// add the shadow.
if( is_array($this->bar_shadow_color) ) {
$numcolors = count($this->bar_shadow_color);
if( $numcolors == 0 ) {
JpGraphError::Raise('You have specified an empty array for shadow colors in the bar plot.');
}
$img->PushColor($this->bar_shadow_color[$i % $numcolors]);
}
else {
$img->PushColor($this->bar_shadow_color);
}
if( $accy > 0 ) {
$sp[4]=$pts[4]+$ssh; $sp[5]=$pts[5]-$ssv;
$sp[6]=$pts[2]+$ssh; $sp[7]=$pts[3]-$ssv;
$sp[8]=$pts[2]; $sp[9]=$pts[3]-1;
$sp[10]=$pts[4]+1; $sp[11]=$pts[5];
$img->FilledPolygon($sp,4);
}
elseif( $accy_neg < 0 ) {
$nsp[6]=$pts[4]+$ssh; $nsp[7]=$pts[5]-$ssv;
$nsp[8]=$pts[4]+1; $nsp[9]=$pts[5];
$img->FilledPolygon($nsp,4);
}
$img->PopColor();
}
}
// If value is NULL or 0, then don't draw a bar at all
if ($this->plots[$j]->coords[0][$i] == 0 ) continue;
if( $this->plots[$j]->grad ) {
$grad = new Gradient($img);
$grad->FilledRectangle(
$pts[2],$pts[3],
$pts[6],$pts[7],
$this->plots[$j]->grad_fromcolor,
$this->plots[$j]->grad_tocolor,
$this->plots[$j]->grad_style);
} else {
if (is_array($this->plots[$j]->fill_color) ) {
$numcolors = count($this->plots[$j]->fill_color);
$img->SetColor($this->plots[$j]->fill_color[$i % $numcolors]);
}
else {
$img->SetColor($this->plots[$j]->fill_color);
}
$img->FilledPolygon($pts);
$img->SetColor($this->plots[$j]->color);
}
// Stroke the pattern
if( $this->plots[$j]->iPattern > -1 ) {
if( $pattern===NULL )
$pattern = new RectPatternFactory();
$prect = $pattern->Create($this->plots[$j]->iPattern,$this->plots[$j]->iPatternColor,1);
$prect->SetDensity($this->plots[$j]->iPatternDensity);
if( $this->plots[$j]->coords[0][$i] < 0 ) {
$rx = $pts[0];
$ry = $pts[1];
}
else {
$rx = $pts[2];
$ry = $pts[3];
}
$width = abs($pts[4]-$pts[0])+1;
$height = abs($pts[1]-$pts[3])+1;
$prect->SetPos(new Rectangle($rx,$ry,$width,$height));
$prect->Stroke($img);
}
// CSIM array
if( $i < count($this->plots[$j]->csimtargets) ) {
// Create the client side image map
$rpts = $img->ArrRotate($pts);
$csimcoord=round($rpts[0]).", ".round($rpts[1]);
for( $k=1; $k < 4; ++$k){
$csimcoord .= ", ".round($rpts[2*$k]).", ".round($rpts[2*$k+1]);
}
if( ! empty($this->plots[$j]->csimtargets[$i]) ) {
$this->csimareas.= '<area shape="poly" coords="'.$csimcoord.'" ';
$this->csimareas.= " href=\"".$this->plots[$j]->csimtargets[$i]."\"";
if( !empty($this->plots[$j]->csimalts[$i]) ) {
$sval=sprintf($this->plots[$j]->csimalts[$i],$this->plots[$j]->coords[0][$i]);
$this->csimareas .= " title=\"$sval\" ";
}
$this->csimareas .= " alt=\"$sval\" />\n";
}
}
$pts[] = $pts[0];
$pts[] = $pts[1];
$img->Polygon($pts);
}
// Draw labels for each acc.bar
$x=$pts[2]+($pts[4]-$pts[2])/2;
if($this->bar_shadow) $x += $ssh;
// First stroke the accumulated value for the entire bar
// This value is always placed at the top/bottom of the bars
if( $accy_neg < 0 ) {
$y=$yscale->Translate($accy_neg);
$this->value->Stroke($img,$accy_neg,$x,$y);
}
else {
$y=$yscale->Translate($accy);
$this->value->Stroke($img,$accy,$x,$y);
}
$accy = 0;
$accy_neg = 0;
for($j=0; $j < $this->nbrplots; ++$j ) {
// We don't print 0 values in an accumulated bar plot
if( $this->plots[$j]->coords[0][$i] == 0 ) continue;
if ($this->plots[$j]->coords[0][$i] > 0) {
$yt=$yscale->Translate($this->plots[$j]->coords[0][$i]+$accy);
$accyt=$yscale->Translate($accy);
if( $this->plots[$j]->valuepos=='center' ) {
$y = $accyt-($accyt-$yt)/2;
}
elseif( $this->plots[$j]->valuepos=='bottom' ) {
$y = $accyt;
}
else { // top or max
$y = $accyt-($accyt-$yt);
}
$accy+=$this->plots[$j]->coords[0][$i];
if( $this->plots[$j]->valuepos=='center' ) {
$this->plots[$j]->value->SetAlign("center","center");
$this->plots[$j]->value->SetMargin(0);
}
elseif( $this->plots[$j]->valuepos=='bottom' ) {
$this->plots[$j]->value->SetAlign('center','bottom');
$this->plots[$j]->value->SetMargin(2);
}
else {
$this->plots[$j]->value->SetAlign('center','top');
$this->plots[$j]->value->SetMargin(1);
}
} else {
$yt=$yscale->Translate($this->plots[$j]->coords[0][$i]+$accy_neg);
$accyt=$yscale->Translate($accy_neg);
$accy_neg+=$this->plots[$j]->coords[0][$i];
if( $this->plots[$j]->valuepos=='center' ) {
$y = $accyt-($accyt-$yt)/2;
}
elseif( $this->plots[$j]->valuepos=='bottom' ) {
$y = $accyt;
}
else {
$y = $accyt-($accyt-$yt);
}
if( $this->plots[$j]->valuepos=='center' ) {
$this->plots[$j]->value->SetAlign("center","center");
$this->plots[$j]->value->SetMargin(0);
}
elseif( $this->plots[$j]->valuepos=='bottom' ) {
$this->plots[$j]->value->SetAlign('center',$j==0 ? 'bottom':'top');
$this->plots[$j]->value->SetMargin(-2);
}
else {
$this->plots[$j]->value->SetAlign('center','bottom');
$this->plots[$j]->value->SetMargin(-1);
}
}
$this->plots[$j]->value->Stroke($img,$this->plots[$j]->coords[0][$i],$x,$y);
}
}
return true;
}
} // Class
/* EOF */
?>
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