[42] | 1 | <?php |
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| 2 | /*======================================================================= |
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| 3 | // File: JPGRAPH_ERROR.PHP |
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| 4 | // Description: Error plot extension for JpGraph |
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| 5 | // Created: 2001-01-08 |
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| 6 | // Ver: $Id: jpgraph_error.php 1106 2009-02-22 20:16:35Z 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 | //=================================================== |
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| 13 | // CLASS ErrorPlot |
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| 14 | // Description: Error plot with min/max value for |
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| 15 | // each datapoint |
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| 16 | //=================================================== |
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| 17 | class ErrorPlot extends Plot { |
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| 18 | private $errwidth=2; |
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| 19 | |
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| 20 | //--------------- |
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| 21 | // CONSTRUCTOR |
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| 22 | function __construct($datay,$datax=false) { |
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| 23 | parent::__construct($datay,$datax); |
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| 24 | $this->numpoints /= 2; |
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| 25 | } |
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| 26 | //--------------- |
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| 27 | // PUBLIC METHODS |
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| 28 | |
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| 29 | // Gets called before any axis are stroked |
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| 30 | function PreStrokeAdjust($graph) { |
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| 31 | if( $this->center ) { |
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| 32 | $a=0.5; $b=0.5; |
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| 33 | ++$this->numpoints; |
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| 34 | } else { |
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| 35 | $a=0; $b=0; |
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| 36 | } |
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| 37 | $graph->xaxis->scale->ticks->SetXLabelOffset($a); |
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| 38 | $graph->SetTextScaleOff($b); |
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| 39 | //$graph->xaxis->scale->ticks->SupressMinorTickMarks(); |
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| 40 | } |
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| 41 | |
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| 42 | // Method description |
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| 43 | function Stroke($img,$xscale,$yscale) { |
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| 44 | $numpoints=count($this->coords[0])/2; |
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| 45 | $img->SetColor($this->color); |
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| 46 | $img->SetLineWeight($this->weight); |
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| 47 | |
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| 48 | if( isset($this->coords[1]) ) { |
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| 49 | if( count($this->coords[1])!=$numpoints ) |
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| 50 | JpGraphError::RaiseL(2003,count($this->coords[1]),$numpoints); |
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| 51 | //("Number of X and Y points are not equal. Number of X-points:".count($this->coords[1])." Number of Y-points:$numpoints"); |
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| 52 | else |
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| 53 | $exist_x = true; |
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| 54 | } |
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| 55 | else |
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| 56 | $exist_x = false; |
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| 57 | |
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| 58 | for( $i=0; $i<$numpoints; ++$i) { |
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| 59 | if( $exist_x ) |
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| 60 | $x=$this->coords[1][$i]; |
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| 61 | else |
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| 62 | $x=$i; |
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| 63 | |
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| 64 | if( !is_numeric($x) || |
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| 65 | !is_numeric($this->coords[0][$i*2]) || !is_numeric($this->coords[0][$i*2+1]) ) { |
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| 66 | continue; |
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| 67 | } |
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| 68 | |
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| 69 | $xt = $xscale->Translate($x); |
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| 70 | $yt1 = $yscale->Translate($this->coords[0][$i*2]); |
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| 71 | $yt2 = $yscale->Translate($this->coords[0][$i*2+1]); |
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| 72 | $img->Line($xt,$yt1,$xt,$yt2); |
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| 73 | $img->Line($xt-$this->errwidth,$yt1,$xt+$this->errwidth,$yt1); |
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| 74 | $img->Line($xt-$this->errwidth,$yt2,$xt+$this->errwidth,$yt2); |
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| 75 | } |
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| 76 | return true; |
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| 77 | } |
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| 78 | } // Class |
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| 79 | |
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| 80 | |
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| 81 | //=================================================== |
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| 82 | // CLASS ErrorLinePlot |
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| 83 | // Description: Combine a line and error plot |
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| 84 | // THIS IS A DEPRECATED PLOT TYPE JUST KEPT FOR |
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| 85 | // BACKWARD COMPATIBILITY |
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| 86 | //=================================================== |
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| 87 | class ErrorLinePlot extends ErrorPlot { |
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| 88 | public $line=null; |
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| 89 | //--------------- |
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| 90 | // CONSTRUCTOR |
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| 91 | function __construct($datay,$datax=false) { |
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| 92 | parent::__construct($datay,$datax); |
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| 93 | // Calculate line coordinates as the average of the error limits |
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| 94 | $n = count($datay); |
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| 95 | for($i=0; $i < $n; $i+=2 ) { |
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| 96 | $ly[]=($datay[$i]+$datay[$i+1])/2; |
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| 97 | } |
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| 98 | $this->line=new LinePlot($ly,$datax); |
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| 99 | } |
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| 100 | |
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| 101 | //--------------- |
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| 102 | // PUBLIC METHODS |
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| 103 | function Legend($graph) { |
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| 104 | if( $this->legend != "" ) |
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| 105 | $graph->legend->Add($this->legend,$this->color); |
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| 106 | $this->line->Legend($graph); |
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| 107 | } |
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| 108 | |
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| 109 | function Stroke($img,$xscale,$yscale) { |
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| 110 | parent::Stroke($img,$xscale,$yscale); |
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| 111 | $this->line->Stroke($img,$xscale,$yscale); |
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| 112 | } |
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| 113 | } // Class |
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| 114 | |
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| 115 | |
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| 116 | //=================================================== |
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| 117 | // CLASS LineErrorPlot |
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| 118 | // Description: Combine a line and error plot |
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| 119 | //=================================================== |
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| 120 | class LineErrorPlot extends ErrorPlot { |
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| 121 | public $line=null; |
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| 122 | //--------------- |
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| 123 | // CONSTRUCTOR |
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| 124 | // Data is (val, errdeltamin, errdeltamax) |
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| 125 | function __construct($datay,$datax=false) { |
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| 126 | $ly=array(); $ey=array(); |
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| 127 | $n = count($datay); |
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| 128 | if( $n % 3 != 0 ) { |
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| 129 | JpGraphError::RaiseL(4002); |
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| 130 | //('Error in input data to LineErrorPlot. Number of data points must be a multiple of 3'); |
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| 131 | } |
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| 132 | for($i=0; $i < $n; $i+=3 ) { |
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| 133 | $ly[]=$datay[$i]; |
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| 134 | $ey[]=$datay[$i]+$datay[$i+1]; |
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| 135 | $ey[]=$datay[$i]+$datay[$i+2]; |
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| 136 | } |
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| 137 | parent::__construct($ey,$datax); |
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| 138 | $this->line=new LinePlot($ly,$datax); |
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| 139 | } |
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| 140 | |
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| 141 | //--------------- |
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| 142 | // PUBLIC METHODS |
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| 143 | function Legend($graph) { |
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| 144 | if( $this->legend != "" ) |
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| 145 | $graph->legend->Add($this->legend,$this->color); |
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| 146 | $this->line->Legend($graph); |
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| 147 | } |
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| 148 | |
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| 149 | function Stroke($img,$xscale,$yscale) { |
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| 150 | parent::Stroke($img,$xscale,$yscale); |
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| 151 | $this->line->Stroke($img,$xscale,$yscale); |
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| 152 | } |
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| 153 | } // Class |
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| 154 | |
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| 155 | |
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| 156 | /* EOF */ |
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| 157 | ?> |
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