[42] | 1 | <?php |
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| 2 | /*======================================================================= |
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| 3 | // File: JPGRAPH_SCATTER.PHP |
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| 4 | // Description: Scatter (and impuls) plot extension for JpGraph |
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| 5 | // Created: 2001-02-11 |
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| 6 | // Ver: $Id: jpgraph_scatter.php 1397 2009-06-27 21:34:14Z 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 | require_once ('jpgraph_plotmark.inc.php'); |
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| 12 | |
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| 13 | //=================================================== |
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| 14 | // CLASS FieldArrow |
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| 15 | // Description: Draw an arrow at (x,y) with angle a |
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| 16 | //=================================================== |
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| 17 | class FieldArrow { |
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| 18 | public $iColor='black'; |
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| 19 | public $iSize=10; // Length in pixels for arrow |
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| 20 | public $iArrowSize = 2; |
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| 21 | private $isizespec = array( |
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| 22 | array(2,1),array(3,2),array(4,3),array(6,4),array(7,4),array(8,5),array(10,6),array(12,7),array(16,8),array(20,10) |
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| 23 | ); |
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| 24 | function __construct() { |
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| 25 | // Empty |
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| 26 | } |
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| 27 | |
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| 28 | function SetSize($aSize,$aArrowSize=2) { |
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| 29 | $this->iSize = $aSize; |
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| 30 | $this->iArrowSize = $aArrowSize; |
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| 31 | } |
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| 32 | |
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| 33 | function SetColor($aColor) { |
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| 34 | $this->iColor = $aColor; |
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| 35 | } |
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| 36 | |
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| 37 | function Stroke($aImg,$x,$y,$a) { |
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| 38 | // First rotate the center coordinates |
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| 39 | list($x,$y) = $aImg->Rotate($x,$y); |
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| 40 | |
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| 41 | $old_origin = $aImg->SetCenter($x,$y); |
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| 42 | $old_a = $aImg->a; |
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| 43 | $aImg->SetAngle(-$a+$old_a); |
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| 44 | |
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| 45 | $dx = round($this->iSize/2); |
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| 46 | $c = array($x-$dx,$y,$x+$dx,$y); |
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| 47 | $x += $dx; |
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| 48 | |
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| 49 | list($dx,$dy) = $this->isizespec[$this->iArrowSize]; |
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| 50 | $ca = array($x,$y,$x-$dx,$y-$dy,$x-$dx,$y+$dy,$x,$y); |
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| 51 | |
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| 52 | $aImg->SetColor($this->iColor); |
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| 53 | $aImg->Polygon($c); |
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| 54 | $aImg->FilledPolygon($ca); |
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| 55 | |
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| 56 | $aImg->SetCenter($old_origin[0],$old_origin[1]); |
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| 57 | $aImg->SetAngle($old_a); |
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| 58 | } |
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| 59 | } |
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| 60 | |
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| 61 | //=================================================== |
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| 62 | // CLASS FieldPlot |
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| 63 | // Description: Render a field plot |
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| 64 | //=================================================== |
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| 65 | class FieldPlot extends Plot { |
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| 66 | public $arrow = ''; |
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| 67 | private $iAngles = array(); |
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| 68 | private $iCallback = ''; |
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| 69 | |
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| 70 | function __construct($datay,$datax,$angles) { |
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| 71 | if( (count($datax) != count($datay)) ) |
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| 72 | JpGraphError::RaiseL(20001);//("Fieldplots must have equal number of X and Y points."); |
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| 73 | if( (count($datax) != count($angles)) ) |
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| 74 | JpGraphError::RaiseL(20002);//("Fieldplots must have an angle specified for each X and Y points."); |
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| 75 | |
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| 76 | $this->iAngles = $angles; |
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| 77 | |
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| 78 | parent::__construct($datay,$datax); |
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| 79 | $this->value->SetAlign('center','center'); |
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| 80 | $this->value->SetMargin(15); |
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| 81 | |
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| 82 | $this->arrow = new FieldArrow(); |
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| 83 | } |
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| 84 | |
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| 85 | function SetCallback($aFunc) { |
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| 86 | $this->iCallback = $aFunc; |
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| 87 | } |
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| 88 | |
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| 89 | function Stroke($img,$xscale,$yscale) { |
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| 90 | |
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| 91 | // Remeber base color and size |
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| 92 | $bc = $this->arrow->iColor; |
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| 93 | $bs = $this->arrow->iSize; |
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| 94 | $bas = $this->arrow->iArrowSize; |
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| 95 | |
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| 96 | for( $i=0; $i<$this->numpoints; ++$i ) { |
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| 97 | // Skip null values |
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| 98 | if( $this->coords[0][$i]==="" ) |
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| 99 | continue; |
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| 100 | |
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| 101 | $f = $this->iCallback; |
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| 102 | if( $f != "" ) { |
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| 103 | list($cc,$cs,$cas) = call_user_func($f,$this->coords[1][$i],$this->coords[0][$i],$this->iAngles[$i]); |
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| 104 | // Fall back on global data if the callback isn't set |
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| 105 | if( $cc == "" ) $cc = $bc; |
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| 106 | if( $cs == "" ) $cs = $bs; |
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| 107 | if( $cas == "" ) $cas = $bas; |
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| 108 | $this->arrow->SetColor($cc); |
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| 109 | $this->arrow->SetSize($cs,$cas); |
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| 110 | } |
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| 111 | |
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| 112 | $xt = $xscale->Translate($this->coords[1][$i]); |
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| 113 | $yt = $yscale->Translate($this->coords[0][$i]); |
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| 114 | |
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| 115 | $this->arrow->Stroke($img,$xt,$yt,$this->iAngles[$i]); |
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| 116 | $this->value->Stroke($img,$this->coords[0][$i],$xt,$yt); |
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| 117 | } |
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| 118 | } |
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| 119 | |
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| 120 | // Framework function |
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| 121 | function Legend($aGraph) { |
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| 122 | if( $this->legend != "" ) { |
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| 123 | $aGraph->legend->Add($this->legend,$this->mark->fill_color,$this->mark,0, |
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| 124 | $this->legendcsimtarget,$this->legendcsimalt,$this->legendcsimwintarget); |
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| 125 | } |
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| 126 | } |
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| 127 | } |
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| 128 | |
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| 129 | //=================================================== |
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| 130 | // CLASS ScatterPlot |
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| 131 | // Description: Render X and Y plots |
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| 132 | //=================================================== |
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| 133 | class ScatterPlot extends Plot { |
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| 134 | public $mark,$link; |
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| 135 | private $impuls = false; |
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| 136 | //--------------- |
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| 137 | // CONSTRUCTOR |
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| 138 | function __construct($datay,$datax=false) { |
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| 139 | if( (count($datax) != count($datay)) && is_array($datax)) { |
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| 140 | JpGraphError::RaiseL(20003);//("Scatterplot must have equal number of X and Y points."); |
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| 141 | } |
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| 142 | parent::__construct($datay,$datax); |
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| 143 | $this->mark = new PlotMark(); |
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| 144 | $this->mark->SetType(MARK_SQUARE); |
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| 145 | $this->mark->SetColor($this->color); |
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| 146 | $this->value->SetAlign('center','center'); |
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| 147 | $this->value->SetMargin(0); |
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| 148 | $this->link = new LineProperty(1,'black','solid'); |
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| 149 | $this->link->iShow = false; |
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| 150 | } |
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| 151 | |
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| 152 | //--------------- |
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| 153 | // PUBLIC METHODS |
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| 154 | function SetImpuls($f=true) { |
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| 155 | $this->impuls = $f; |
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| 156 | } |
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| 157 | |
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| 158 | function SetStem($f=true) { |
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| 159 | $this->impuls = $f; |
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| 160 | } |
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| 161 | |
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| 162 | // Combine the scatter plot points with a line |
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| 163 | function SetLinkPoints($aFlag=true,$aColor="black",$aWeight=1,$aStyle='solid') { |
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| 164 | $this->link->iShow = $aFlag; |
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| 165 | $this->link->iColor = $aColor; |
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| 166 | $this->link->iWeight = $aWeight; |
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| 167 | $this->link->iStyle = $aStyle; |
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| 168 | } |
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| 169 | |
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| 170 | function Stroke($img,$xscale,$yscale) { |
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| 171 | |
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| 172 | $ymin=$yscale->scale_abs[0]; |
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| 173 | if( $yscale->scale[0] < 0 ) |
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| 174 | $yzero=$yscale->Translate(0); |
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| 175 | else |
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| 176 | $yzero=$yscale->scale_abs[0]; |
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| 177 | |
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| 178 | $this->csimareas = ''; |
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| 179 | for( $i=0; $i<$this->numpoints; ++$i ) { |
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| 180 | |
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| 181 | // Skip null values |
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| 182 | if( $this->coords[0][$i]==='' || $this->coords[0][$i]==='-' || $this->coords[0][$i]==='x') |
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| 183 | continue; |
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| 184 | |
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| 185 | if( isset($this->coords[1]) ) |
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| 186 | $xt = $xscale->Translate($this->coords[1][$i]); |
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| 187 | else |
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| 188 | $xt = $xscale->Translate($i); |
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| 189 | $yt = $yscale->Translate($this->coords[0][$i]); |
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| 190 | |
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| 191 | |
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| 192 | if( $this->link->iShow && isset($yt_old) ) { |
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| 193 | $img->SetColor($this->link->iColor); |
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| 194 | $img->SetLineWeight($this->link->iWeight); |
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| 195 | $old = $img->SetLineStyle($this->link->iStyle); |
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| 196 | $img->StyleLine($xt_old,$yt_old,$xt,$yt); |
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| 197 | $img->SetLineStyle($old); |
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| 198 | } |
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| 199 | |
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| 200 | if( $this->impuls ) { |
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| 201 | $img->SetColor($this->color); |
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| 202 | $img->SetLineWeight($this->weight); |
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| 203 | $img->Line($xt,$yzero,$xt,$yt); |
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| 204 | } |
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| 205 | |
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| 206 | if( !empty($this->csimtargets[$i]) ) { |
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| 207 | if( !empty($this->csimwintargets[$i]) ) { |
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| 208 | $this->mark->SetCSIMTarget($this->csimtargets[$i],$this->csimwintargets[$i]); |
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| 209 | } |
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| 210 | else { |
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| 211 | $this->mark->SetCSIMTarget($this->csimtargets[$i]); |
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| 212 | } |
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| 213 | $this->mark->SetCSIMAlt($this->csimalts[$i]); |
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| 214 | } |
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| 215 | |
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| 216 | if( isset($this->coords[1]) ) { |
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| 217 | $this->mark->SetCSIMAltVal($this->coords[0][$i],$this->coords[1][$i]); |
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| 218 | } |
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| 219 | else { |
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| 220 | $this->mark->SetCSIMAltVal($this->coords[0][$i],$i); |
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| 221 | } |
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| 222 | |
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| 223 | $this->mark->Stroke($img,$xt,$yt); |
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| 224 | |
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| 225 | $this->csimareas .= $this->mark->GetCSIMAreas(); |
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| 226 | $this->value->Stroke($img,$this->coords[0][$i],$xt,$yt); |
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| 227 | |
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| 228 | $xt_old = $xt; |
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| 229 | $yt_old = $yt; |
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| 230 | } |
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| 231 | } |
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| 232 | |
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| 233 | // Framework function |
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| 234 | function Legend($aGraph) { |
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| 235 | if( $this->legend != "" ) { |
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| 236 | $aGraph->legend->Add($this->legend,$this->mark->fill_color,$this->mark,0, |
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| 237 | $this->legendcsimtarget,$this->legendcsimalt,$this->legendcsimwintarget); |
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| 238 | } |
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| 239 | } |
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| 240 | } // Class |
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| 241 | /* EOF */ |
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| 242 | ?> |
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