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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 | <?php /*======================================================================= // File: JPGRAPH_STOCK.PHP // Description: Stock plot extension for JpGraph // Created: 2003-01-27 // Ver: $Id: jpgraph_stock.php 1364 2009-06-24 07:07:44Z ljp $ // // Copyright (c) Aditus Consulting. All rights reserved. //======================================================================== */ //=================================================== // CLASS StockPlot //=================================================== class StockPlot extends Plot { protected $iTupleSize = 4; private $iWidth=9; private $iEndLines=1; private $iStockColor1='white',$iStockColor2='darkred',$iStockColor3='darkred'; //--------------- // CONSTRUCTOR function __construct($datay,$datax=false) { if( count($datay) % $this->iTupleSize ) { JpGraphError::RaiseL(21001,$this->iTupleSize); //('Data values for Stock charts must contain an even multiple of '.$this->iTupleSize.' data points.'); } parent::__construct($datay,$datax); $this->numpoints /= $this->iTupleSize; } //--------------- // PUBLIC METHODS function SetColor($aColor,$aColor1='white',$aColor2='darkred',$aColor3='darkred') { $this->color = $aColor; $this->iStockColor1 = $aColor1; $this->iStockColor2 = $aColor2; $this->iStockColor3 = $aColor3; } function SetWidth($aWidth) { // Make sure it's odd $this->iWidth = 2*floor($aWidth/2)+1; } function HideEndLines($aHide=true) { $this->iEndLines = !$aHide; } // Gets called before any axis are stroked function PreStrokeAdjust($graph) { if( $this->center ) { $a=0.5; $b=0.5; $this->numpoints++; } else { $a=0; $b=0; } $graph->xaxis->scale->ticks->SetXLabelOffset($a); $graph->SetTextScaleOff($b); } // Method description function Stroke($img,$xscale,$yscale) { $n=$this->numpoints; if( $this->center ) $n--; if( isset($this->coords[1]) ) { if( count($this->coords[1])!=$n ) { JpGraphError::RaiseL(2003,count($this->coords[1]),$n); // ("Number of X and Y points are not equal. Number of X-points:".count($this->coords[1])." Number of Y-points:$numpoints"); } else { $exist_x = true; } } else { $exist_x = false; } if( $exist_x ) { $xs=$this->coords[1][0]; } else { $xs=0; } $ts = $this->iTupleSize; $this->csimareas = ''; for( $i=0; $i<$n; ++$i) { //If value is NULL, then don't draw a bar at all if ($this->coords[0][$i*$ts] === null) continue; if( $exist_x ) { $x=$this->coords[1][$i]; if ($x === null) continue; } else { $x=$i; } $xt = $xscale->Translate($x); $neg = $this->coords[0][$i*$ts] > $this->coords[0][$i*$ts+1] ; $yopen = $yscale->Translate($this->coords[0][$i*$ts]); $yclose = $yscale->Translate($this->coords[0][$i*$ts+1]); $ymin = $yscale->Translate($this->coords[0][$i*$ts+2]); $ymax = $yscale->Translate($this->coords[0][$i*$ts+3]); $dx = floor($this->iWidth/2); $xl = $xt - $dx; $xr = $xt + $dx; if( $neg ) { $img->SetColor($this->iStockColor3); } else { $img->SetColor($this->iStockColor1); } $img->FilledRectangle($xl,$yopen,$xr,$yclose); $img->SetLineWeight($this->weight); if( $neg ) { $img->SetColor($this->iStockColor2); } else { $img->SetColor($this->color); } $img->Rectangle($xl,$yopen,$xr,$yclose); if( $yopen < $yclose ) { $ytop = $yopen ; $ybottom = $yclose ; } else { $ytop = $yclose ; $ybottom = $yopen ; } $img->SetColor($this->color); $img->Line($xt,$ytop,$xt,$ymax); $img->Line($xt,$ybottom,$xt,$ymin); if( $this->iEndLines ) { $img->Line($xl,$ymax,$xr,$ymax); $img->Line($xl,$ymin,$xr,$ymin); } // A chance for subclasses to add things to the bar // for data point i $this->ModBox($img,$xscale,$yscale,$i,$xl,$xr,$neg); // Setup image maps if( !empty($this->csimtargets[$i]) ) { $this->csimareas.= '<area shape="rect" coords="'. round($xl).','.round($ytop).','. round($xr).','.round($ybottom).'" '; $this->csimareas .= ' href="'.$this->csimtargets[$i].'"'; if( !empty($this->csimalts[$i]) ) { $sval=$this->csimalts[$i]; $this->csimareas .= " title=\"$sval\" alt=\"$sval\" "; } $this->csimareas.= " />\n"; } } return true; } // A hook for subclasses to modify the plot function ModBox($img,$xscale,$yscale,$i,$xl,$xr,$neg) {} } // Class //=================================================== // CLASS BoxPlot //=================================================== class BoxPlot extends StockPlot { private $iPColor='black',$iNColor='white'; function __construct($datay,$datax=false) { $this->iTupleSize=5; parent::__construct($datay,$datax); } function SetMedianColor($aPos,$aNeg) { $this->iPColor = $aPos; $this->iNColor = $aNeg; } function ModBox($img,$xscale,$yscale,$i,$xl,$xr,$neg) { if( $neg ) $img->SetColor($this->iNColor); else $img->SetColor($this->iPColor); $y = $yscale->Translate($this->coords[0][$i*5+4]); $img->Line($xl,$y,$xr,$y); } } /* EOF */ ?> |