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