[42] | 1 | <?php |
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| 2 | /*======================================================================= |
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| 3 | // File: JPGRAPH_POLAR.PHP |
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| 4 | // Description: Polar plot extension for JpGraph |
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| 5 | // Created: 2003-02-02 |
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| 6 | // Ver: $Id: jpgraph_polar.php 1796 2009-09-07 09:37:19Z ljp $ |
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| 7 | // |
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| 8 | // Copyright (c) Asial Corporation. All rights reserved. |
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| 9 | //======================================================================== |
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| 10 | */ |
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| 11 | |
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| 12 | require_once ('jpgraph_plotmark.inc.php'); |
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| 13 | require_once "jpgraph_log.php"; |
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| 14 | |
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| 15 | |
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| 16 | define('POLAR_360',1); |
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| 17 | define('POLAR_180',2); |
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| 18 | |
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| 19 | // |
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| 20 | // Note. Don't attempt to make sense of this code. |
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| 21 | // In order not to have to be able to inherit the scaling code |
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| 22 | // from the main graph package we have had to make some "tricks" since |
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| 23 | // the original scaling and axis was not designed to do what is |
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| 24 | // required here. |
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| 25 | // There were two option. 1: Re-implement everything and get a clean design |
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| 26 | // and 2: do some "small" trickery and be able to inherit most of |
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| 27 | // the functionlity from the main graph package. |
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| 28 | // We choose 2: here in order to save some time. |
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| 29 | // |
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| 30 | |
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| 31 | //-------------------------------------------------------------------------- |
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| 32 | // class PolarPlot |
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| 33 | //-------------------------------------------------------------------------- |
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| 34 | class PolarPlot { |
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| 35 | public $line_style='solid',$mark; |
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| 36 | public $legendcsimtarget=''; |
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| 37 | public $legendcsimalt=''; |
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| 38 | public $legend=""; |
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| 39 | public $csimtargets=array(); // Array of targets for CSIM |
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| 40 | public $csimareas=""; // Resultant CSIM area tags |
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| 41 | public $csimalts=null; // ALT:s for corresponding target |
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| 42 | public $scale=null; |
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| 43 | private $numpoints=0; |
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| 44 | private $iColor='navy',$iFillColor=''; |
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| 45 | private $iLineWeight=1; |
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| 46 | private $coord=null; |
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| 47 | |
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| 48 | function __construct($aData) { |
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| 49 | $n = count($aData); |
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| 50 | if( $n & 1 ) { |
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| 51 | JpGraphError::RaiseL(17001); |
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| 52 | //('Polar plots must have an even number of data point. Each data point is a tuple (angle,radius).'); |
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| 53 | } |
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| 54 | $this->numpoints = $n/2; |
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| 55 | $this->coord = $aData; |
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| 56 | $this->mark = new PlotMark(); |
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| 57 | } |
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| 58 | |
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| 59 | function SetWeight($aWeight) { |
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| 60 | $this->iLineWeight = $aWeight; |
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| 61 | } |
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| 62 | |
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| 63 | function SetColor($aColor){ |
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| 64 | $this->iColor = $aColor; |
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| 65 | } |
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| 66 | |
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| 67 | function SetFillColor($aColor){ |
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| 68 | $this->iFillColor = $aColor; |
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| 69 | } |
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| 70 | |
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| 71 | function Max() { |
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| 72 | $m = $this->coord[1]; |
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| 73 | $i=1; |
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| 74 | while( $i < $this->numpoints ) { |
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| 75 | $m = max($m,$this->coord[2*$i+1]); |
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| 76 | ++$i; |
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| 77 | } |
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| 78 | return $m; |
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| 79 | } |
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| 80 | // Set href targets for CSIM |
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| 81 | function SetCSIMTargets($aTargets,$aAlts=null) { |
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| 82 | $this->csimtargets=$aTargets; |
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| 83 | $this->csimalts=$aAlts; |
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| 84 | } |
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| 85 | |
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| 86 | // Get all created areas |
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| 87 | function GetCSIMareas() { |
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| 88 | return $this->csimareas; |
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| 89 | } |
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| 90 | |
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| 91 | function SetLegend($aLegend,$aCSIM="",$aCSIMAlt="") { |
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| 92 | $this->legend = $aLegend; |
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| 93 | $this->legendcsimtarget = $aCSIM; |
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| 94 | $this->legendcsimalt = $aCSIMAlt; |
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| 95 | } |
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| 96 | |
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| 97 | // Private methods |
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| 98 | |
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| 99 | function Legend($aGraph) { |
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| 100 | $color = $this->iColor ; |
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| 101 | if( $this->legend != "" ) { |
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| 102 | if( $this->iFillColor!='' ) { |
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| 103 | $color = $this->iFillColor; |
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| 104 | $aGraph->legend->Add($this->legend,$color,$this->mark,0, |
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| 105 | $this->legendcsimtarget,$this->legendcsimalt); |
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| 106 | } |
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| 107 | else { |
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| 108 | $aGraph->legend->Add($this->legend,$color,$this->mark,$this->line_style, |
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| 109 | $this->legendcsimtarget,$this->legendcsimalt); |
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| 110 | } |
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| 111 | } |
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| 112 | } |
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| 113 | |
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| 114 | function Stroke($img,$scale) { |
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| 115 | |
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| 116 | $i=0; |
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| 117 | $p=array(); |
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| 118 | $this->csimareas=''; |
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| 119 | while($i < $this->numpoints) { |
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| 120 | list($x1,$y1) = $scale->PTranslate($this->coord[2*$i],$this->coord[2*$i+1]); |
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| 121 | $p[2*$i] = $x1; |
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| 122 | $p[2*$i+1] = $y1; |
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| 123 | |
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| 124 | if( isset($this->csimtargets[$i]) ) { |
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| 125 | $this->mark->SetCSIMTarget($this->csimtargets[$i]); |
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| 126 | $this->mark->SetCSIMAlt($this->csimalts[$i]); |
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| 127 | $this->mark->SetCSIMAltVal($this->coord[2*$i], $this->coord[2*$i+1]); |
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| 128 | $this->mark->Stroke($img,$x1,$y1); |
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| 129 | $this->csimareas .= $this->mark->GetCSIMAreas(); |
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| 130 | } |
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| 131 | else { |
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| 132 | $this->mark->Stroke($img,$x1,$y1); |
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| 133 | } |
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| 134 | |
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| 135 | ++$i; |
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| 136 | } |
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| 137 | |
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| 138 | if( $this->iFillColor != '' ) { |
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| 139 | $img->SetColor($this->iFillColor); |
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| 140 | $img->FilledPolygon($p); |
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| 141 | } |
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| 142 | $img->SetLineWeight($this->iLineWeight); |
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| 143 | $img->SetColor($this->iColor); |
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| 144 | $img->Polygon($p,$this->iFillColor!=''); |
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| 145 | } |
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| 146 | } |
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| 147 | |
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| 148 | //-------------------------------------------------------------------------- |
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| 149 | // class PolarAxis |
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| 150 | //-------------------------------------------------------------------------- |
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| 151 | class PolarAxis extends Axis { |
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| 152 | private $angle_step=15,$angle_color='lightgray',$angle_label_color='black'; |
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| 153 | private $angle_fontfam=FF_FONT1,$angle_fontstyle=FS_NORMAL,$angle_fontsize=10; |
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| 154 | private $angle_fontcolor = 'navy'; |
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| 155 | private $gridminor_color='lightgray',$gridmajor_color='lightgray'; |
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| 156 | private $show_minor_grid = false, $show_major_grid = true ; |
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| 157 | private $show_angle_mark=true, $show_angle_grid=true, $show_angle_label=true; |
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| 158 | private $angle_tick_len=3, $angle_tick_len2=3, $angle_tick_color='black'; |
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| 159 | private $show_angle_tick=true; |
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| 160 | private $radius_tick_color='black'; |
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| 161 | |
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| 162 | function __construct($img,$aScale) { |
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| 163 | parent::__construct($img,$aScale); |
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| 164 | } |
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| 165 | |
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| 166 | function ShowAngleDegreeMark($aFlg=true) { |
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| 167 | $this->show_angle_mark = $aFlg; |
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| 168 | } |
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| 169 | |
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| 170 | function SetAngleStep($aStep) { |
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| 171 | $this->angle_step=$aStep; |
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| 172 | } |
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| 173 | |
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| 174 | function HideTicks($aFlg=true,$aAngleFlg=true) { |
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| 175 | parent::HideTicks($aFlg,$aFlg); |
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| 176 | $this->show_angle_tick = !$aAngleFlg; |
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| 177 | } |
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| 178 | |
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| 179 | function ShowAngleLabel($aFlg=true) { |
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| 180 | $this->show_angle_label = $aFlg; |
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| 181 | } |
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| 182 | |
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| 183 | function ShowGrid($aMajor=true,$aMinor=false,$aAngle=true) { |
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| 184 | $this->show_minor_grid = $aMinor; |
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| 185 | $this->show_major_grid = $aMajor; |
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| 186 | $this->show_angle_grid = $aAngle ; |
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| 187 | } |
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| 188 | |
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| 189 | function SetAngleFont($aFontFam,$aFontStyle=FS_NORMAL,$aFontSize=10) { |
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| 190 | $this->angle_fontfam = $aFontFam; |
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| 191 | $this->angle_fontstyle = $aFontStyle; |
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| 192 | $this->angle_fontsize = $aFontSize; |
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| 193 | } |
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| 194 | |
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| 195 | function SetColor($aColor,$aRadColor='',$aAngleColor='') { |
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| 196 | if( $aAngleColor == '' ) |
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| 197 | $aAngleColor=$aColor; |
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| 198 | parent::SetColor($aColor,$aRadColor); |
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| 199 | $this->angle_fontcolor = $aAngleColor; |
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| 200 | } |
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| 201 | |
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| 202 | function SetGridColor($aMajorColor,$aMinorColor='',$aAngleColor='') { |
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| 203 | if( $aMinorColor == '' ) |
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| 204 | $aMinorColor = $aMajorColor; |
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| 205 | if( $aAngleColor == '' ) |
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| 206 | $aAngleColor = $aMajorColor; |
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| 207 | |
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| 208 | $this->gridminor_color = $aMinorColor; |
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| 209 | $this->gridmajor_color = $aMajorColor; |
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| 210 | $this->angle_color = $aAngleColor; |
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| 211 | } |
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| 212 | |
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| 213 | function SetTickColors($aRadColor,$aAngleColor='') { |
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| 214 | $this->radius_tick_color = $aRadColor; |
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| 215 | $this->angle_tick_color = $aAngleColor; |
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| 216 | } |
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| 217 | |
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| 218 | // Private methods |
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| 219 | function StrokeGrid($pos) { |
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| 220 | $x = round($this->img->left_margin + $this->img->plotwidth/2); |
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| 221 | $this->scale->ticks->Stroke($this->img,$this->scale,$pos); |
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| 222 | |
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| 223 | // Stroke the minor arcs |
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| 224 | $pmin = array(); |
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| 225 | $p = $this->scale->ticks->ticks_pos; |
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| 226 | $n = count($p); |
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| 227 | $i = 0; |
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| 228 | $this->img->SetColor($this->gridminor_color); |
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| 229 | while( $i < $n ) { |
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| 230 | $r = $p[$i]-$x+1; |
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| 231 | $pmin[]=$r; |
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| 232 | if( $this->show_minor_grid ) { |
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| 233 | $this->img->Circle($x,$pos,$r); |
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| 234 | } |
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| 235 | $i++; |
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| 236 | } |
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| 237 | |
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| 238 | $limit = max($this->img->plotwidth,$this->img->plotheight)*1.4 ; |
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| 239 | while( $r < $limit ) { |
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| 240 | $off = $r; |
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| 241 | $i=1; |
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| 242 | $r = $off + round($p[$i]-$x+1); |
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| 243 | while( $r < $limit && $i < $n ) { |
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| 244 | $r = $off+$p[$i]-$x; |
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| 245 | $pmin[]=$r; |
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| 246 | if( $this->show_minor_grid ) { |
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| 247 | $this->img->Circle($x,$pos,$r); |
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| 248 | } |
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| 249 | $i++; |
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| 250 | } |
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| 251 | } |
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| 252 | |
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| 253 | // Stroke the major arcs |
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| 254 | if( $this->show_major_grid ) { |
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| 255 | // First determine how many minor step on |
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| 256 | // every major step. We have recorded the minor radius |
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| 257 | // in pmin and use these values. This is done in order |
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| 258 | // to avoid rounding errors if we were to recalculate the |
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| 259 | // different major radius. |
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| 260 | $pmaj = $this->scale->ticks->maj_ticks_pos; |
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| 261 | $p = $this->scale->ticks->ticks_pos; |
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| 262 | if( $this->scale->name == 'lin' ) { |
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| 263 | $step=round(($pmaj[1] - $pmaj[0])/($p[1] - $p[0])); |
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| 264 | } |
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| 265 | else { |
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| 266 | $step=9; |
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| 267 | } |
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| 268 | $n = round(count($pmin)/$step); |
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| 269 | $i = 0; |
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| 270 | $this->img->SetColor($this->gridmajor_color); |
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| 271 | $limit = max($this->img->plotwidth,$this->img->plotheight)*1.4 ; |
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| 272 | $off = $r; |
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| 273 | $i=0; |
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| 274 | $r = $pmin[$i*$step]; |
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| 275 | while( $r < $limit && $i < $n ) { |
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| 276 | $r = $pmin[$i*$step]; |
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| 277 | $this->img->Circle($x,$pos,$r); |
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| 278 | $i++; |
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| 279 | } |
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| 280 | } |
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| 281 | |
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| 282 | // Draw angles |
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| 283 | if( $this->show_angle_grid ) { |
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| 284 | $this->img->SetColor($this->angle_color); |
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| 285 | $d = max($this->img->plotheight,$this->img->plotwidth)*1.4 ; |
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| 286 | $a = 0; |
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| 287 | $p = $this->scale->ticks->ticks_pos; |
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| 288 | $start_radius = $p[1]-$x; |
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| 289 | while( $a < 360 ) { |
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| 290 | if( $a == 90 || $a == 270 ) { |
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| 291 | // Make sure there are no rounding problem with |
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| 292 | // exactly vertical lines |
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| 293 | $this->img->Line($x+$start_radius*cos($a/180*M_PI)+1, |
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| 294 | $pos-$start_radius*sin($a/180*M_PI), |
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| 295 | $x+$start_radius*cos($a/180*M_PI)+1, |
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| 296 | $pos-$d*sin($a/180*M_PI)); |
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| 297 | |
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| 298 | } |
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| 299 | else { |
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| 300 | $this->img->Line($x+$start_radius*cos($a/180*M_PI)+1, |
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| 301 | $pos-$start_radius*sin($a/180*M_PI), |
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| 302 | $x+$d*cos($a/180*M_PI), |
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| 303 | $pos-$d*sin($a/180*M_PI)); |
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| 304 | } |
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| 305 | $a += $this->angle_step; |
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| 306 | } |
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| 307 | } |
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| 308 | } |
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| 309 | |
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| 310 | function StrokeAngleLabels($pos,$type) { |
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| 311 | |
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| 312 | if( !$this->show_angle_label ) |
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| 313 | return; |
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| 314 | |
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| 315 | $x0 = round($this->img->left_margin+$this->img->plotwidth/2)+1; |
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| 316 | |
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| 317 | $d = max($this->img->plotwidth,$this->img->plotheight)*1.42; |
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| 318 | $a = $this->angle_step; |
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| 319 | $t = new Text(); |
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| 320 | $t->SetColor($this->angle_fontcolor); |
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| 321 | $t->SetFont($this->angle_fontfam,$this->angle_fontstyle,$this->angle_fontsize); |
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| 322 | $xright = $this->img->width - $this->img->right_margin; |
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| 323 | $ytop = $this->img->top_margin; |
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| 324 | $xleft = $this->img->left_margin; |
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| 325 | $ybottom = $this->img->height - $this->img->bottom_margin; |
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| 326 | $ha = 'left'; |
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| 327 | $va = 'center'; |
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| 328 | $w = $this->img->plotwidth/2; |
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| 329 | $h = $this->img->plotheight/2; |
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| 330 | $xt = $x0; $yt = $pos; |
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| 331 | $margin=5; |
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| 332 | |
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| 333 | $tl = $this->angle_tick_len ; // Outer len |
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| 334 | $tl2 = $this->angle_tick_len2 ; // Interior len |
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| 335 | |
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| 336 | $this->img->SetColor($this->angle_tick_color); |
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| 337 | $rot90 = $this->img->a == 90 ; |
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| 338 | |
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| 339 | if( $type == POLAR_360 ) { |
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| 340 | |
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| 341 | // Corner angles of the four corners |
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| 342 | $ca1 = atan($h/$w)/M_PI*180; |
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| 343 | $ca2 = 180-$ca1; |
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| 344 | $ca3 = $ca1+180; |
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| 345 | $ca4 = 360-$ca1; |
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| 346 | $end = 360; |
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| 347 | |
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| 348 | while( $a < $end ) { |
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| 349 | $ca = cos($a/180*M_PI); |
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| 350 | $sa = sin($a/180*M_PI); |
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| 351 | $x = $d*$ca; |
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| 352 | $y = $d*$sa; |
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| 353 | $xt=1000;$yt=1000; |
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| 354 | if( $a <= $ca1 || $a >= $ca4 ) { |
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| 355 | $yt = $pos - $w * $y/$x; |
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| 356 | $xt = $xright + $margin; |
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| 357 | if( $rot90 ) { |
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| 358 | $ha = 'center'; |
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| 359 | $va = 'top'; |
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| 360 | } |
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| 361 | else { |
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| 362 | $ha = 'left'; |
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| 363 | $va = 'center'; |
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| 364 | } |
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| 365 | $x1=$xright-$tl2; $x2=$xright+$tl; |
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| 366 | $y1=$y2=$yt; |
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| 367 | } |
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| 368 | elseif( $a > $ca1 && $a < $ca2 ) { |
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| 369 | $xt = $x0 + $h * $x/$y; |
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| 370 | $yt = $ytop - $margin; |
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| 371 | if( $rot90 ) { |
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| 372 | $ha = 'left'; |
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| 373 | $va = 'center'; |
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| 374 | } |
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| 375 | else { |
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| 376 | $ha = 'center'; |
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| 377 | $va = 'bottom'; |
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| 378 | } |
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| 379 | $y1=$ytop+$tl2;$y2=$ytop-$tl; |
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| 380 | $x1=$x2=$xt; |
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| 381 | } |
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| 382 | elseif( $a >= $ca2 && $a <= $ca3 ) { |
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| 383 | $yt = $pos + $w * $y/$x; |
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| 384 | $xt = $xleft - $margin; |
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| 385 | if( $rot90 ) { |
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| 386 | $ha = 'center'; |
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| 387 | $va = 'bottom'; |
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| 388 | } |
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| 389 | else { |
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| 390 | $ha = 'right'; |
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| 391 | $va = 'center'; |
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| 392 | } |
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| 393 | $x1=$xleft+$tl2;$x2=$xleft-$tl; |
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| 394 | $y1=$y2=$yt; |
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| 395 | } |
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| 396 | else { |
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| 397 | $xt = $x0 - $h * $x/$y; |
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| 398 | $yt = $ybottom + $margin; |
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| 399 | if( $rot90 ) { |
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| 400 | $ha = 'right'; |
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| 401 | $va = 'center'; |
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| 402 | } |
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| 403 | else { |
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| 404 | $ha = 'center'; |
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| 405 | $va = 'top'; |
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| 406 | } |
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| 407 | $y1=$ybottom-$tl2;$y2=$ybottom+$tl; |
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| 408 | $x1=$x2=$xt; |
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| 409 | } |
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| 410 | if( $a != 0 && $a != 180 ) { |
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| 411 | $t->Align($ha,$va); |
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| 412 | if( $this->scale->clockwise ) { |
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| 413 | $t->Set(360-$a); |
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| 414 | } |
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| 415 | else { |
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| 416 | $t->Set($a); |
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| 417 | } |
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| 418 | if( $this->show_angle_mark && $t->font_family > 4 ) { |
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| 419 | $a .= SymChar::Get('degree'); |
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| 420 | } |
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| 421 | $t->Stroke($this->img,$xt,$yt); |
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| 422 | if( $this->show_angle_tick ) { |
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| 423 | $this->img->Line($x1,$y1,$x2,$y2); |
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| 424 | } |
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| 425 | } |
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| 426 | $a += $this->angle_step; |
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| 427 | } |
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| 428 | } |
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| 429 | else { |
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| 430 | // POLAR_HALF |
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| 431 | $ca1 = atan($h/$w*2)/M_PI*180; |
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| 432 | $ca2 = 180-$ca1; |
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| 433 | $end = 180; |
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| 434 | while( $a < $end ) { |
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| 435 | $ca = cos($a/180*M_PI); |
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| 436 | $sa = sin($a/180*M_PI); |
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| 437 | $x = $d*$ca; |
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| 438 | $y = $d*$sa; |
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| 439 | if( $a <= $ca1 ) { |
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| 440 | $yt = $pos - $w * $y/$x; |
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| 441 | $xt = $xright + $margin; |
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| 442 | if( $rot90 ) { |
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| 443 | $ha = 'center'; |
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| 444 | $va = 'top'; |
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| 445 | } |
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| 446 | else { |
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| 447 | $ha = 'left'; |
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| 448 | $va = 'center'; |
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| 449 | } |
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| 450 | $x1=$xright-$tl2; $x2=$xright+$tl; |
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| 451 | $y1=$y2=$yt; |
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| 452 | } |
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| 453 | elseif( $a > $ca1 && $a < $ca2 ) { |
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| 454 | $xt = $x0 + 2*$h * $x/$y; |
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| 455 | $yt = $ytop - $margin; |
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| 456 | if( $rot90 ) { |
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| 457 | $ha = 'left'; |
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| 458 | $va = 'center'; |
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| 459 | } |
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| 460 | else { |
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| 461 | $ha = 'center'; |
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| 462 | $va = 'bottom'; |
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| 463 | } |
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| 464 | $y1=$ytop+$tl2;$y2=$ytop-$tl; |
---|
| 465 | $x1=$x2=$xt; |
---|
| 466 | } |
---|
| 467 | elseif( $a >= $ca2 ) { |
---|
| 468 | $yt = $pos + $w * $y/$x; |
---|
| 469 | $xt = $xleft - $margin; |
---|
| 470 | if( $rot90 ) { |
---|
| 471 | $ha = 'center'; |
---|
| 472 | $va = 'bottom'; |
---|
| 473 | } |
---|
| 474 | else { |
---|
| 475 | $ha = 'right'; |
---|
| 476 | $va = 'center'; |
---|
| 477 | } |
---|
| 478 | $x1=$xleft+$tl2;$x2=$xleft-$tl; |
---|
| 479 | $y1=$y2=$yt; |
---|
| 480 | } |
---|
| 481 | $t->Align($ha,$va); |
---|
| 482 | if( $this->show_angle_mark && $t->font_family > 4 ) { |
---|
| 483 | $a .= SymChar::Get('degree'); |
---|
| 484 | } |
---|
| 485 | $t->Set($a); |
---|
| 486 | $t->Stroke($this->img,$xt,$yt); |
---|
| 487 | if( $this->show_angle_tick ) { |
---|
| 488 | $this->img->Line($x1,$y1,$x2,$y2); |
---|
| 489 | } |
---|
| 490 | $a += $this->angle_step; |
---|
| 491 | } |
---|
| 492 | } |
---|
| 493 | } |
---|
| 494 | |
---|
| 495 | function Stroke($pos,$dummy=true) { |
---|
| 496 | |
---|
| 497 | $this->img->SetLineWeight($this->weight); |
---|
| 498 | $this->img->SetColor($this->color); |
---|
| 499 | $this->img->SetFont($this->font_family,$this->font_style,$this->font_size); |
---|
| 500 | if( !$this->hide_line ) { |
---|
| 501 | $this->img->FilledRectangle($this->img->left_margin,$pos, |
---|
| 502 | $this->img->width-$this->img->right_margin, |
---|
| 503 | $pos+$this->weight-1); |
---|
| 504 | } |
---|
| 505 | $y=$pos+$this->img->GetFontHeight()+$this->title_margin+$this->title->margin; |
---|
| 506 | if( $this->title_adjust=="high" ) { |
---|
| 507 | $this->title->SetPos($this->img->width-$this->img->right_margin,$y,"right","top"); |
---|
| 508 | } |
---|
| 509 | elseif( $this->title_adjust=="middle" || $this->title_adjust=="center" ) { |
---|
| 510 | $this->title->SetPos(($this->img->width-$this->img->left_margin-$this->img->right_margin)/2+$this->img->left_margin, |
---|
| 511 | $y,"center","top"); |
---|
| 512 | } |
---|
| 513 | elseif($this->title_adjust=="low") { |
---|
| 514 | $this->title->SetPos($this->img->left_margin,$y,"left","top"); |
---|
| 515 | } |
---|
| 516 | else { |
---|
| 517 | JpGraphError::RaiseL(17002,$this->title_adjust); |
---|
| 518 | //('Unknown alignment specified for X-axis title. ('.$this->title_adjust.')'); |
---|
| 519 | } |
---|
| 520 | |
---|
| 521 | |
---|
| 522 | if (!$this->hide_labels) { |
---|
| 523 | $this->StrokeLabels($pos,false); |
---|
| 524 | } |
---|
| 525 | $this->img->SetColor($this->radius_tick_color); |
---|
| 526 | $this->scale->ticks->Stroke($this->img,$this->scale,$pos); |
---|
| 527 | |
---|
| 528 | // |
---|
| 529 | // Mirror the positions for the left side of the scale |
---|
| 530 | // |
---|
| 531 | $mid = 2*($this->img->left_margin+$this->img->plotwidth/2); |
---|
| 532 | $n = count($this->scale->ticks->ticks_pos); |
---|
| 533 | $i=0; |
---|
| 534 | while( $i < $n ) { |
---|
| 535 | $this->scale->ticks->ticks_pos[$i] = |
---|
| 536 | $mid-$this->scale->ticks->ticks_pos[$i] ; |
---|
| 537 | ++$i; |
---|
| 538 | } |
---|
| 539 | |
---|
| 540 | $n = count($this->scale->ticks->maj_ticks_pos); |
---|
| 541 | $i=0; |
---|
| 542 | while( $i < $n ) { |
---|
| 543 | $this->scale->ticks->maj_ticks_pos[$i] = |
---|
| 544 | $mid-$this->scale->ticks->maj_ticks_pos[$i] ; |
---|
| 545 | ++$i; |
---|
| 546 | } |
---|
| 547 | |
---|
| 548 | $n = count($this->scale->ticks->maj_ticklabels_pos); |
---|
| 549 | $i=1; |
---|
| 550 | while( $i < $n ) { |
---|
| 551 | $this->scale->ticks->maj_ticklabels_pos[$i] = |
---|
| 552 | $mid-$this->scale->ticks->maj_ticklabels_pos[$i] ; |
---|
| 553 | ++$i; |
---|
| 554 | } |
---|
| 555 | |
---|
| 556 | // Draw the left side of the scale |
---|
| 557 | $n = count($this->scale->ticks->ticks_pos); |
---|
| 558 | $yu = $pos - $this->scale->ticks->direction*$this->scale->ticks->GetMinTickAbsSize(); |
---|
| 559 | |
---|
| 560 | |
---|
| 561 | // Minor ticks |
---|
| 562 | if( ! $this->scale->ticks->supress_minor_tickmarks ) { |
---|
| 563 | $i=1; |
---|
| 564 | while( $i < $n/2 ) { |
---|
| 565 | $x = round($this->scale->ticks->ticks_pos[$i]) ; |
---|
| 566 | $this->img->Line($x,$pos,$x,$yu); |
---|
| 567 | ++$i; |
---|
| 568 | } |
---|
| 569 | } |
---|
| 570 | |
---|
| 571 | $n = count($this->scale->ticks->maj_ticks_pos); |
---|
| 572 | $yu = $pos - $this->scale->ticks->direction*$this->scale->ticks->GetMajTickAbsSize(); |
---|
| 573 | |
---|
| 574 | |
---|
| 575 | // Major ticks |
---|
| 576 | if( ! $this->scale->ticks->supress_tickmarks ) { |
---|
| 577 | $i=1; |
---|
| 578 | while( $i < $n/2 ) { |
---|
| 579 | $x = round($this->scale->ticks->maj_ticks_pos[$i]) ; |
---|
| 580 | $this->img->Line($x,$pos,$x,$yu); |
---|
| 581 | ++$i; |
---|
| 582 | } |
---|
| 583 | } |
---|
| 584 | if (!$this->hide_labels) { |
---|
| 585 | $this->StrokeLabels($pos,false); |
---|
| 586 | } |
---|
| 587 | $this->title->Stroke($this->img); |
---|
| 588 | } |
---|
| 589 | } |
---|
| 590 | |
---|
| 591 | class PolarScale extends LinearScale { |
---|
| 592 | private $graph; |
---|
| 593 | public $clockwise=false; |
---|
| 594 | |
---|
| 595 | function __construct($aMax,$graph,$aClockwise) { |
---|
| 596 | parent::__construct(0,$aMax,'x'); |
---|
| 597 | $this->graph = $graph; |
---|
| 598 | $this->clockwise = $aClockwise; |
---|
| 599 | } |
---|
| 600 | |
---|
| 601 | function SetClockwise($aFlg) { |
---|
| 602 | $this->clockwise = $aFlg; |
---|
| 603 | } |
---|
| 604 | |
---|
| 605 | function _Translate($v) { |
---|
| 606 | return parent::Translate($v); |
---|
| 607 | } |
---|
| 608 | |
---|
| 609 | function PTranslate($aAngle,$aRad) { |
---|
| 610 | |
---|
| 611 | $m = $this->scale[1]; |
---|
| 612 | $w = $this->graph->img->plotwidth/2; |
---|
| 613 | $aRad = $aRad/$m*$w; |
---|
| 614 | |
---|
| 615 | $a = $aAngle/180 * M_PI; |
---|
| 616 | if( $this->clockwise ) { |
---|
| 617 | $a = 2*M_PI-$a; |
---|
| 618 | } |
---|
| 619 | |
---|
| 620 | $x = cos($a) * $aRad; |
---|
| 621 | $y = sin($a) * $aRad; |
---|
| 622 | |
---|
| 623 | $x += $this->_Translate(0); |
---|
| 624 | |
---|
| 625 | if( $this->graph->iType == POLAR_360 ) { |
---|
| 626 | $y = ($this->graph->img->top_margin + $this->graph->img->plotheight/2) - $y; |
---|
| 627 | } |
---|
| 628 | else { |
---|
| 629 | $y = ($this->graph->img->top_margin + $this->graph->img->plotheight) - $y; |
---|
| 630 | } |
---|
| 631 | return array($x,$y); |
---|
| 632 | } |
---|
| 633 | } |
---|
| 634 | |
---|
| 635 | class PolarLogScale extends LogScale { |
---|
| 636 | private $graph; |
---|
| 637 | public $clockwise=false; |
---|
| 638 | |
---|
| 639 | function __construct($aMax,$graph,$aClockwise=false) { |
---|
| 640 | parent::__construct(0,$aMax,'x'); |
---|
| 641 | $this->graph = $graph; |
---|
| 642 | $this->ticks->SetLabelLogType(LOGLABELS_MAGNITUDE); |
---|
| 643 | $this->clockwise = $aClockwise; |
---|
| 644 | |
---|
| 645 | } |
---|
| 646 | |
---|
| 647 | function SetClockwise($aFlg) { |
---|
| 648 | $this->clockwise = $aFlg; |
---|
| 649 | } |
---|
| 650 | |
---|
| 651 | function PTranslate($aAngle,$aRad) { |
---|
| 652 | |
---|
| 653 | if( $aRad == 0 ) |
---|
| 654 | $aRad = 1; |
---|
| 655 | $aRad = log10($aRad); |
---|
| 656 | $m = $this->scale[1]; |
---|
| 657 | $w = $this->graph->img->plotwidth/2; |
---|
| 658 | $aRad = $aRad/$m*$w; |
---|
| 659 | |
---|
| 660 | $a = $aAngle/180 * M_PI; |
---|
| 661 | if( $this->clockwise ) { |
---|
| 662 | $a = 2*M_PI-$a; |
---|
| 663 | } |
---|
| 664 | |
---|
| 665 | $x = cos( $a ) * $aRad; |
---|
| 666 | $y = sin( $a ) * $aRad; |
---|
| 667 | |
---|
| 668 | $x += $w+$this->graph->img->left_margin;//$this->_Translate(0); |
---|
| 669 | if( $this->graph->iType == POLAR_360 ) { |
---|
| 670 | $y = ($this->graph->img->top_margin + $this->graph->img->plotheight/2) - $y; |
---|
| 671 | } |
---|
| 672 | else { |
---|
| 673 | $y = ($this->graph->img->top_margin + $this->graph->img->plotheight) - $y; |
---|
| 674 | } |
---|
| 675 | return array($x,$y); |
---|
| 676 | } |
---|
| 677 | } |
---|
| 678 | |
---|
| 679 | class PolarGraph extends Graph { |
---|
| 680 | public $scale; |
---|
| 681 | public $axis; |
---|
| 682 | public $iType=POLAR_360; |
---|
| 683 | private $iClockwise=false; |
---|
| 684 | |
---|
| 685 | function __construct($aWidth=300,$aHeight=200,$aCachedName="",$aTimeOut=0,$aInline=true) { |
---|
| 686 | parent::__construct($aWidth,$aHeight,$aCachedName,$aTimeOut,$aInline) ; |
---|
| 687 | $this->SetDensity(TICKD_DENSE); |
---|
| 688 | $this->SetBox(); |
---|
| 689 | $this->SetMarginColor('white'); |
---|
| 690 | } |
---|
| 691 | |
---|
| 692 | function SetDensity($aDense) { |
---|
| 693 | $this->SetTickDensity(TICKD_NORMAL,$aDense); |
---|
| 694 | } |
---|
| 695 | |
---|
| 696 | function SetClockwise($aFlg) { |
---|
| 697 | $this->scale->SetClockwise($aFlg); |
---|
| 698 | } |
---|
| 699 | |
---|
| 700 | function Set90AndMargin($lm=0,$rm=0,$tm=0,$bm=0) { |
---|
| 701 | $adj = ($this->img->height - $this->img->width)/2; |
---|
| 702 | $this->SetAngle(90); |
---|
| 703 | $lm2 = -$adj + ($lm-$rm+$tm+$bm)/2; |
---|
| 704 | $rm2 = -$adj + (-$lm+$rm+$tm+$bm)/2; |
---|
| 705 | $tm2 = $adj + ($tm-$bm+$lm+$rm)/2; |
---|
| 706 | $bm2 = $adj + (-$tm+$bm+$lm+$rm)/2; |
---|
| 707 | $this->SetMargin($lm2, $rm2, $tm2, $bm2); |
---|
| 708 | $this->axis->SetLabelAlign('right','center'); |
---|
| 709 | } |
---|
| 710 | |
---|
| 711 | function SetScale($aScale,$rmax=0,$dummy1=1,$dummy2=1,$dummy3=1) { |
---|
| 712 | if( $aScale == 'lin' ) { |
---|
| 713 | $this->scale = new PolarScale($rmax,$this,$this->iClockwise); |
---|
| 714 | } |
---|
| 715 | elseif( $aScale == 'log' ) { |
---|
| 716 | $this->scale = new PolarLogScale($rmax,$this,$this->iClockwise); |
---|
| 717 | } |
---|
| 718 | else { |
---|
| 719 | JpGraphError::RaiseL(17004);//('Unknown scale type for polar graph. Must be "lin" or "log"'); |
---|
| 720 | } |
---|
| 721 | |
---|
| 722 | $this->axis = new PolarAxis($this->img,$this->scale); |
---|
| 723 | $this->SetMargin(40,40,50,40); |
---|
| 724 | } |
---|
| 725 | |
---|
| 726 | function SetType($aType) { |
---|
| 727 | $this->iType = $aType; |
---|
| 728 | } |
---|
| 729 | |
---|
| 730 | function SetPlotSize($w,$h) { |
---|
| 731 | $this->SetMargin(($this->img->width-$w)/2,($this->img->width-$w)/2, |
---|
| 732 | ($this->img->height-$h)/2,($this->img->height-$h)/2); |
---|
| 733 | } |
---|
| 734 | |
---|
| 735 | // Private methods |
---|
| 736 | function GetPlotsMax() { |
---|
| 737 | $n = count($this->plots); |
---|
| 738 | $m = $this->plots[0]->Max(); |
---|
| 739 | $i=1; |
---|
| 740 | while($i < $n) { |
---|
| 741 | $m = max($this->plots[$i]->Max(),$m); |
---|
| 742 | ++$i; |
---|
| 743 | } |
---|
| 744 | return $m; |
---|
| 745 | } |
---|
| 746 | |
---|
| 747 | function Stroke($aStrokeFileName="") { |
---|
| 748 | |
---|
| 749 | // Start by adjusting the margin so that potential titles will fit. |
---|
| 750 | $this->AdjustMarginsForTitles(); |
---|
| 751 | |
---|
| 752 | // If the filename is the predefined value = '_csim_special_' |
---|
| 753 | // we assume that the call to stroke only needs to do enough |
---|
| 754 | // to correctly generate the CSIM maps. |
---|
| 755 | // We use this variable to skip things we don't strictly need |
---|
| 756 | // to do to generate the image map to improve performance |
---|
| 757 | // a best we can. Therefor you will see a lot of tests !$_csim in the |
---|
| 758 | // code below. |
---|
| 759 | $_csim = ($aStrokeFileName===_CSIM_SPECIALFILE); |
---|
| 760 | |
---|
| 761 | // We need to know if we have stroked the plot in the |
---|
| 762 | // GetCSIMareas. Otherwise the CSIM hasn't been generated |
---|
| 763 | // and in the case of GetCSIM called before stroke to generate |
---|
| 764 | // CSIM without storing an image to disk GetCSIM must call Stroke. |
---|
| 765 | $this->iHasStroked = true; |
---|
| 766 | |
---|
| 767 | //Check if we should autoscale axis |
---|
| 768 | if( !$this->scale->IsSpecified() && count($this->plots)>0 ) { |
---|
| 769 | $max = $this->GetPlotsMax(); |
---|
| 770 | $t1 = $this->img->plotwidth; |
---|
| 771 | $this->img->plotwidth /= 2; |
---|
| 772 | $t2 = $this->img->left_margin; |
---|
| 773 | $this->img->left_margin += $this->img->plotwidth+1; |
---|
| 774 | $this->scale->AutoScale($this->img,0,$max, |
---|
| 775 | $this->img->plotwidth/$this->xtick_factor/2); |
---|
| 776 | $this->img->plotwidth = $t1; |
---|
| 777 | $this->img->left_margin = $t2; |
---|
| 778 | } |
---|
| 779 | else { |
---|
| 780 | // The tick calculation will use the user suplied min/max values to determine |
---|
| 781 | // the ticks. If auto_ticks is false the exact user specifed min and max |
---|
| 782 | // values will be used for the scale. |
---|
| 783 | // If auto_ticks is true then the scale might be slightly adjusted |
---|
| 784 | // so that the min and max values falls on an even major step. |
---|
| 785 | //$min = 0; |
---|
| 786 | $max = $this->scale->scale[1]; |
---|
| 787 | $t1 = $this->img->plotwidth; |
---|
| 788 | $this->img->plotwidth /= 2; |
---|
| 789 | $t2 = $this->img->left_margin; |
---|
| 790 | $this->img->left_margin += $this->img->plotwidth+1; |
---|
| 791 | $this->scale->AutoScale($this->img,0,$max, |
---|
| 792 | $this->img->plotwidth/$this->xtick_factor/2); |
---|
| 793 | $this->img->plotwidth = $t1; |
---|
| 794 | $this->img->left_margin = $t2; |
---|
| 795 | } |
---|
| 796 | |
---|
| 797 | if( $this->iType == POLAR_180 ) { |
---|
| 798 | $pos = $this->img->height - $this->img->bottom_margin; |
---|
| 799 | } |
---|
| 800 | else { |
---|
| 801 | $pos = $this->img->plotheight/2 + $this->img->top_margin; |
---|
| 802 | } |
---|
| 803 | |
---|
| 804 | if( !$_csim ) { |
---|
| 805 | $this->StrokePlotArea(); |
---|
| 806 | } |
---|
| 807 | |
---|
| 808 | $this->iDoClipping = true; |
---|
| 809 | |
---|
| 810 | if( $this->iDoClipping ) { |
---|
| 811 | $oldimage = $this->img->CloneCanvasH(); |
---|
| 812 | } |
---|
| 813 | |
---|
| 814 | if( !$_csim ) { |
---|
| 815 | $this->axis->StrokeGrid($pos); |
---|
| 816 | } |
---|
| 817 | |
---|
| 818 | // Stroke all plots for Y1 axis |
---|
| 819 | for($i=0; $i < count($this->plots); ++$i) { |
---|
| 820 | $this->plots[$i]->Stroke($this->img,$this->scale); |
---|
| 821 | } |
---|
| 822 | |
---|
| 823 | |
---|
| 824 | if( $this->iDoClipping ) { |
---|
| 825 | // Clipping only supports graphs at 0 and 90 degrees |
---|
| 826 | if( $this->img->a == 0 ) { |
---|
| 827 | $this->img->CopyCanvasH($oldimage,$this->img->img, |
---|
| 828 | $this->img->left_margin,$this->img->top_margin, |
---|
| 829 | $this->img->left_margin,$this->img->top_margin, |
---|
| 830 | $this->img->plotwidth+1,$this->img->plotheight+1); |
---|
| 831 | } |
---|
| 832 | elseif( $this->img->a == 90 ) { |
---|
| 833 | $adj1 = round(($this->img->height - $this->img->width)/2); |
---|
| 834 | $adj2 = round(($this->img->width - $this->img->height)/2); |
---|
| 835 | $lm = $this->img->left_margin; |
---|
| 836 | $rm = $this->img->right_margin; |
---|
| 837 | $tm = $this->img->top_margin; |
---|
| 838 | $bm = $this->img->bottom_margin; |
---|
| 839 | $this->img->CopyCanvasH($oldimage,$this->img->img, |
---|
| 840 | $adj2 + round(($lm-$rm+$tm+$bm)/2), |
---|
| 841 | $adj1 + round(($tm-$bm+$lm+$rm)/2), |
---|
| 842 | $adj2 + round(($lm-$rm+$tm+$bm)/2), |
---|
| 843 | $adj1 + round(($tm-$bm+$lm+$rm)/2), |
---|
| 844 | $this->img->plotheight+1, |
---|
| 845 | $this->img->plotwidth+1); |
---|
| 846 | } |
---|
| 847 | $this->img->Destroy(); |
---|
| 848 | $this->img->SetCanvasH($oldimage); |
---|
| 849 | } |
---|
| 850 | |
---|
| 851 | if( !$_csim ) { |
---|
| 852 | $this->axis->Stroke($pos); |
---|
| 853 | $this->axis->StrokeAngleLabels($pos,$this->iType); |
---|
| 854 | } |
---|
| 855 | |
---|
| 856 | if( !$_csim ) { |
---|
| 857 | $this->StrokePlotBox(); |
---|
| 858 | $this->footer->Stroke($this->img); |
---|
| 859 | |
---|
| 860 | // The titles and legends never gets rotated so make sure |
---|
| 861 | // that the angle is 0 before stroking them |
---|
| 862 | $aa = $this->img->SetAngle(0); |
---|
| 863 | $this->StrokeTitles(); |
---|
| 864 | } |
---|
| 865 | |
---|
| 866 | for($i=0; $i < count($this->plots) ; ++$i ) { |
---|
| 867 | $this->plots[$i]->Legend($this); |
---|
| 868 | } |
---|
| 869 | |
---|
| 870 | $this->legend->Stroke($this->img); |
---|
| 871 | |
---|
| 872 | if( !$_csim ) { |
---|
| 873 | |
---|
| 874 | $this->StrokeTexts(); |
---|
| 875 | $this->img->SetAngle($aa); |
---|
| 876 | |
---|
| 877 | // Draw an outline around the image map |
---|
| 878 | if(_JPG_DEBUG) |
---|
| 879 | $this->DisplayClientSideaImageMapAreas(); |
---|
| 880 | |
---|
| 881 | // If the filename is given as the special "__handle" |
---|
| 882 | // then the image handler is returned and the image is NOT |
---|
| 883 | // streamed back |
---|
| 884 | if( $aStrokeFileName == _IMG_HANDLER ) { |
---|
| 885 | return $this->img->img; |
---|
| 886 | } |
---|
| 887 | else { |
---|
| 888 | // Finally stream the generated picture |
---|
| 889 | $this->cache->PutAndStream($this->img,$this->cache_name,$this->inline,$aStrokeFileName); |
---|
| 890 | } |
---|
| 891 | } |
---|
| 892 | } |
---|
| 893 | } |
---|
| 894 | |
---|
| 895 | |
---|
| 896 | |
---|
| 897 | ?> |
---|