[42] | 1 | <?php |
---|
| 2 | /*======================================================================= |
---|
| 3 | // File: JPGRAPH_LINE.PHP |
---|
| 4 | // Description: Line plot extension for JpGraph |
---|
| 5 | // Created: 2001-01-08 |
---|
| 6 | // Ver: $Id: jpgraph_line.php 1921 2009-12-11 11:46:39Z ljp $ |
---|
| 7 | // |
---|
| 8 | // Copyright (c) Asial Corporation. All rights reserved. |
---|
| 9 | //======================================================================== |
---|
| 10 | */ |
---|
| 11 | |
---|
| 12 | require_once ('jpgraph_plotmark.inc.php'); |
---|
| 13 | |
---|
| 14 | // constants for the (filled) area |
---|
| 15 | DEFINE("LP_AREA_FILLED", true); |
---|
| 16 | DEFINE("LP_AREA_NOT_FILLED", false); |
---|
| 17 | DEFINE("LP_AREA_BORDER",false); |
---|
| 18 | DEFINE("LP_AREA_NO_BORDER",true); |
---|
| 19 | |
---|
| 20 | //=================================================== |
---|
| 21 | // CLASS LinePlot |
---|
| 22 | // Description: |
---|
| 23 | //=================================================== |
---|
| 24 | class LinePlot extends Plot{ |
---|
| 25 | public $mark=null; |
---|
| 26 | protected $filled=false; |
---|
| 27 | protected $fill_color='blue'; |
---|
| 28 | protected $step_style=false, $center=false; |
---|
| 29 | protected $line_style=1; // Default to solid |
---|
| 30 | protected $filledAreas = array(); // array of arrays(with min,max,col,filled in them) |
---|
| 31 | public $barcenter=false; // When we mix line and bar. Should we center the line in the bar. |
---|
| 32 | protected $fillFromMin = false, $fillFromMax = false; |
---|
| 33 | protected $fillgrad=false,$fillgrad_fromcolor='navy',$fillgrad_tocolor='silver',$fillgrad_numcolors=100; |
---|
| 34 | protected $iFastStroke=false; |
---|
| 35 | |
---|
| 36 | //--------------- |
---|
| 37 | // CONSTRUCTOR |
---|
| 38 | function LinePlot($datay,$datax=false) { |
---|
| 39 | parent::__construct($datay,$datax); |
---|
| 40 | $this->mark = new PlotMark() ; |
---|
| 41 | $this->color = ColorFactory::getColor(); |
---|
| 42 | $this->fill_color = $this->color; |
---|
| 43 | } |
---|
| 44 | //--------------- |
---|
| 45 | // PUBLIC METHODS |
---|
| 46 | |
---|
| 47 | function SetFilled($aFlg=true) { |
---|
| 48 | $this->filled = $aFlg; |
---|
| 49 | } |
---|
| 50 | |
---|
| 51 | function SetBarCenter($aFlag=true) { |
---|
| 52 | $this->barcenter=$aFlag; |
---|
| 53 | } |
---|
| 54 | |
---|
| 55 | function SetStyle($aStyle) { |
---|
| 56 | $this->line_style=$aStyle; |
---|
| 57 | } |
---|
| 58 | |
---|
| 59 | function SetStepStyle($aFlag=true) { |
---|
| 60 | $this->step_style = $aFlag; |
---|
| 61 | } |
---|
| 62 | |
---|
| 63 | function SetColor($aColor) { |
---|
| 64 | parent::SetColor($aColor); |
---|
| 65 | } |
---|
| 66 | |
---|
| 67 | function SetFillFromYMin($f=true) { |
---|
| 68 | $this->fillFromMin = $f ; |
---|
| 69 | } |
---|
| 70 | |
---|
| 71 | function SetFillFromYMax($f=true) { |
---|
| 72 | $this->fillFromMax = $f ; |
---|
| 73 | } |
---|
| 74 | |
---|
| 75 | function SetFillColor($aColor,$aFilled=true) { |
---|
| 76 | //$this->color = $aColor; |
---|
| 77 | $this->fill_color=$aColor; |
---|
| 78 | $this->filled=$aFilled; |
---|
| 79 | } |
---|
| 80 | |
---|
| 81 | function SetFillGradient($aFromColor,$aToColor,$aNumColors=100,$aFilled=true) { |
---|
| 82 | $this->fillgrad_fromcolor = $aFromColor; |
---|
| 83 | $this->fillgrad_tocolor = $aToColor; |
---|
| 84 | $this->fillgrad_numcolors = $aNumColors; |
---|
| 85 | $this->filled = $aFilled; |
---|
| 86 | $this->fillgrad = true; |
---|
| 87 | } |
---|
| 88 | |
---|
| 89 | function Legend($graph) { |
---|
| 90 | if( $this->legend!="" ) { |
---|
| 91 | if( $this->filled && !$this->fillgrad ) { |
---|
| 92 | $graph->legend->Add($this->legend, |
---|
| 93 | $this->fill_color,$this->mark,0, |
---|
| 94 | $this->legendcsimtarget,$this->legendcsimalt,$this->legendcsimwintarget); |
---|
| 95 | } |
---|
| 96 | elseif( $this->fillgrad ) { |
---|
| 97 | $color=array($this->fillgrad_fromcolor,$this->fillgrad_tocolor); |
---|
| 98 | // In order to differentiate between gradients and cooors specified as an RGB triple |
---|
| 99 | $graph->legend->Add($this->legend,$color,"",-2 /* -GRAD_HOR */, |
---|
| 100 | $this->legendcsimtarget,$this->legendcsimalt,$this->legendcsimwintarget); |
---|
| 101 | } else { |
---|
| 102 | $graph->legend->Add($this->legend, |
---|
| 103 | $this->color,$this->mark,$this->line_style, |
---|
| 104 | $this->legendcsimtarget,$this->legendcsimalt,$this->legendcsimwintarget); |
---|
| 105 | } |
---|
| 106 | } |
---|
| 107 | } |
---|
| 108 | |
---|
| 109 | function AddArea($aMin=0,$aMax=0,$aFilled=LP_AREA_NOT_FILLED,$aColor="gray9",$aBorder=LP_AREA_BORDER) { |
---|
| 110 | if($aMin > $aMax) { |
---|
| 111 | // swap |
---|
| 112 | $tmp = $aMin; |
---|
| 113 | $aMin = $aMax; |
---|
| 114 | $aMax = $tmp; |
---|
| 115 | } |
---|
| 116 | $this->filledAreas[] = array($aMin,$aMax,$aColor,$aFilled,$aBorder); |
---|
| 117 | } |
---|
| 118 | |
---|
| 119 | // Gets called before any axis are stroked |
---|
| 120 | function PreStrokeAdjust($graph) { |
---|
| 121 | |
---|
| 122 | // If another plot type have already adjusted the |
---|
| 123 | // offset we don't touch it. |
---|
| 124 | // (We check for empty in case the scale is a log scale |
---|
| 125 | // and hence doesn't contain any xlabel_offset) |
---|
| 126 | if( empty($graph->xaxis->scale->ticks->xlabel_offset) || $graph->xaxis->scale->ticks->xlabel_offset == 0 ) { |
---|
| 127 | if( $this->center ) { |
---|
| 128 | ++$this->numpoints; |
---|
| 129 | $a=0.5; $b=0.5; |
---|
| 130 | } else { |
---|
| 131 | $a=0; $b=0; |
---|
| 132 | } |
---|
| 133 | $graph->xaxis->scale->ticks->SetXLabelOffset($a); |
---|
| 134 | $graph->SetTextScaleOff($b); |
---|
| 135 | //$graph->xaxis->scale->ticks->SupressMinorTickMarks(); |
---|
| 136 | } |
---|
| 137 | } |
---|
| 138 | |
---|
| 139 | function SetFastStroke($aFlg=true) { |
---|
| 140 | $this->iFastStroke = $aFlg; |
---|
| 141 | } |
---|
| 142 | |
---|
| 143 | function FastStroke($img,$xscale,$yscale,$aStartPoint=0,$exist_x=true) { |
---|
| 144 | // An optimized stroke for many data points with no extra |
---|
| 145 | // features but 60% faster. You can't have values or line styles, or null |
---|
| 146 | // values in plots. |
---|
| 147 | $numpoints=count($this->coords[0]); |
---|
| 148 | if( $this->barcenter ) { |
---|
| 149 | $textadj = 0.5-$xscale->text_scale_off; |
---|
| 150 | } |
---|
| 151 | else { |
---|
| 152 | $textadj = 0; |
---|
| 153 | } |
---|
| 154 | |
---|
| 155 | $img->SetColor($this->color); |
---|
| 156 | $img->SetLineWeight($this->weight); |
---|
| 157 | $pnts=$aStartPoint; |
---|
| 158 | while( $pnts < $numpoints ) { |
---|
| 159 | if( $exist_x ) { |
---|
| 160 | $x=$this->coords[1][$pnts]; |
---|
| 161 | } |
---|
| 162 | else { |
---|
| 163 | $x=$pnts+$textadj; |
---|
| 164 | } |
---|
| 165 | $xt = $xscale->Translate($x); |
---|
| 166 | $y=$this->coords[0][$pnts]; |
---|
| 167 | $yt = $yscale->Translate($y); |
---|
| 168 | if( is_numeric($y) ) { |
---|
| 169 | $cord[] = $xt; |
---|
| 170 | $cord[] = $yt; |
---|
| 171 | } |
---|
| 172 | elseif( $y == '-' && $pnts > 0 ) { |
---|
| 173 | // Just ignore |
---|
| 174 | } |
---|
| 175 | else { |
---|
| 176 | JpGraphError::RaiseL(10002);//('Plot too complicated for fast line Stroke. Use standard Stroke()'); |
---|
| 177 | } |
---|
| 178 | ++$pnts; |
---|
| 179 | } // WHILE |
---|
| 180 | |
---|
| 181 | $img->Polygon($cord,false,true); |
---|
| 182 | } |
---|
| 183 | |
---|
| 184 | function Stroke($img,$xscale,$yscale) { |
---|
| 185 | $idx=0; |
---|
| 186 | $numpoints=count($this->coords[0]); |
---|
| 187 | if( isset($this->coords[1]) ) { |
---|
| 188 | if( count($this->coords[1])!=$numpoints ) { |
---|
| 189 | JpGraphError::RaiseL(2003,count($this->coords[1]),$numpoints); |
---|
| 190 | //("Number of X and Y points are not equal. Number of X-points:".count($this->coords[1])." Number of Y-points:$numpoints"); |
---|
| 191 | } |
---|
| 192 | else { |
---|
| 193 | $exist_x = true; |
---|
| 194 | } |
---|
| 195 | } |
---|
| 196 | else { |
---|
| 197 | $exist_x = false; |
---|
| 198 | } |
---|
| 199 | |
---|
| 200 | if( $this->barcenter ) { |
---|
| 201 | $textadj = 0.5-$xscale->text_scale_off; |
---|
| 202 | } |
---|
| 203 | else { |
---|
| 204 | $textadj = 0; |
---|
| 205 | } |
---|
| 206 | |
---|
| 207 | // Find the first numeric data point |
---|
| 208 | $startpoint=0; |
---|
| 209 | while( $startpoint < $numpoints && !is_numeric($this->coords[0][$startpoint]) ) { |
---|
| 210 | ++$startpoint; |
---|
| 211 | } |
---|
| 212 | |
---|
| 213 | // Bail out if no data points |
---|
| 214 | if( $startpoint == $numpoints ) return; |
---|
| 215 | |
---|
| 216 | if( $this->iFastStroke ) { |
---|
| 217 | $this->FastStroke($img,$xscale,$yscale,$startpoint,$exist_x); |
---|
| 218 | return; |
---|
| 219 | } |
---|
| 220 | |
---|
| 221 | if( $exist_x ) { |
---|
| 222 | $xs=$this->coords[1][$startpoint]; |
---|
| 223 | } |
---|
| 224 | else { |
---|
| 225 | $xs= $textadj+$startpoint; |
---|
| 226 | } |
---|
| 227 | |
---|
| 228 | $img->SetStartPoint($xscale->Translate($xs), |
---|
| 229 | $yscale->Translate($this->coords[0][$startpoint])); |
---|
| 230 | |
---|
| 231 | if( $this->filled ) { |
---|
| 232 | if( $this->fillFromMax ) { |
---|
| 233 | //$max = $yscale->GetMaxVal(); |
---|
| 234 | $cord[$idx++] = $xscale->Translate($xs); |
---|
| 235 | $cord[$idx++] = $yscale->scale_abs[1]; |
---|
| 236 | } |
---|
| 237 | else { |
---|
| 238 | $min = $yscale->GetMinVal(); |
---|
| 239 | if( $min > 0 || $this->fillFromMin ) { |
---|
| 240 | $fillmin = $yscale->scale_abs[0];//Translate($min); |
---|
| 241 | } |
---|
| 242 | else { |
---|
| 243 | $fillmin = $yscale->Translate(0); |
---|
| 244 | } |
---|
| 245 | |
---|
| 246 | $cord[$idx++] = $xscale->Translate($xs); |
---|
| 247 | $cord[$idx++] = $fillmin; |
---|
| 248 | } |
---|
| 249 | } |
---|
| 250 | $xt = $xscale->Translate($xs); |
---|
| 251 | $yt = $yscale->Translate($this->coords[0][$startpoint]); |
---|
| 252 | $cord[$idx++] = $xt; |
---|
| 253 | $cord[$idx++] = $yt; |
---|
| 254 | $yt_old = $yt; |
---|
| 255 | $xt_old = $xt; |
---|
| 256 | $y_old = $this->coords[0][$startpoint]; |
---|
| 257 | |
---|
| 258 | $this->value->Stroke($img,$this->coords[0][$startpoint],$xt,$yt); |
---|
| 259 | |
---|
| 260 | $img->SetColor($this->color); |
---|
| 261 | $img->SetLineWeight($this->weight); |
---|
| 262 | $img->SetLineStyle($this->line_style); |
---|
| 263 | $pnts=$startpoint+1; |
---|
| 264 | $firstnonumeric = false; |
---|
| 265 | |
---|
| 266 | |
---|
| 267 | while( $pnts < $numpoints ) { |
---|
| 268 | |
---|
| 269 | if( $exist_x ) { |
---|
| 270 | $x=$this->coords[1][$pnts]; |
---|
| 271 | } |
---|
| 272 | else { |
---|
| 273 | $x=$pnts+$textadj; |
---|
| 274 | } |
---|
| 275 | $xt = $xscale->Translate($x); |
---|
| 276 | $yt = $yscale->Translate($this->coords[0][$pnts]); |
---|
| 277 | |
---|
| 278 | $y=$this->coords[0][$pnts]; |
---|
| 279 | if( $this->step_style ) { |
---|
| 280 | // To handle null values within step style we need to record the |
---|
| 281 | // first non numeric value so we know from where to start if the |
---|
| 282 | // non value is '-'. |
---|
| 283 | if( is_numeric($y) ) { |
---|
| 284 | $firstnonumeric = false; |
---|
| 285 | if( is_numeric($y_old) ) { |
---|
| 286 | $img->StyleLine($xt_old,$yt_old,$xt,$yt_old); |
---|
| 287 | $img->StyleLine($xt,$yt_old,$xt,$yt); |
---|
| 288 | } |
---|
| 289 | elseif( $y_old == '-' ) { |
---|
| 290 | $img->StyleLine($xt_first,$yt_first,$xt,$yt_first); |
---|
| 291 | $img->StyleLine($xt,$yt_first,$xt,$yt); |
---|
| 292 | } |
---|
| 293 | else { |
---|
| 294 | $yt_old = $yt; |
---|
| 295 | $xt_old = $xt; |
---|
| 296 | } |
---|
| 297 | $cord[$idx++] = $xt; |
---|
| 298 | $cord[$idx++] = $yt_old; |
---|
| 299 | $cord[$idx++] = $xt; |
---|
| 300 | $cord[$idx++] = $yt; |
---|
| 301 | } |
---|
| 302 | elseif( $firstnonumeric==false ) { |
---|
| 303 | $firstnonumeric = true; |
---|
| 304 | $yt_first = $yt_old; |
---|
| 305 | $xt_first = $xt_old; |
---|
| 306 | } |
---|
| 307 | } |
---|
| 308 | else { |
---|
| 309 | $tmp1=$y; |
---|
| 310 | $prev=$this->coords[0][$pnts-1]; |
---|
| 311 | if( $tmp1==='' || $tmp1===NULL || $tmp1==='X' ) $tmp1 = 'x'; |
---|
| 312 | if( $prev==='' || $prev===null || $prev==='X' ) $prev = 'x'; |
---|
| 313 | |
---|
| 314 | if( is_numeric($y) || (is_string($y) && $y != '-') ) { |
---|
| 315 | if( is_numeric($y) && (is_numeric($prev) || $prev === '-' ) ) { |
---|
| 316 | $img->StyleLineTo($xt,$yt); |
---|
| 317 | } |
---|
| 318 | else { |
---|
| 319 | $img->SetStartPoint($xt,$yt); |
---|
| 320 | } |
---|
| 321 | } |
---|
| 322 | if( $this->filled && $tmp1 !== '-' ) { |
---|
| 323 | if( $tmp1 === 'x' ) { |
---|
| 324 | $cord[$idx++] = $cord[$idx-3]; |
---|
| 325 | $cord[$idx++] = $fillmin; |
---|
| 326 | } |
---|
| 327 | elseif( $prev === 'x' ) { |
---|
| 328 | $cord[$idx++] = $xt; |
---|
| 329 | $cord[$idx++] = $fillmin; |
---|
| 330 | $cord[$idx++] = $xt; |
---|
| 331 | $cord[$idx++] = $yt; |
---|
| 332 | } |
---|
| 333 | else { |
---|
| 334 | $cord[$idx++] = $xt; |
---|
| 335 | $cord[$idx++] = $yt; |
---|
| 336 | } |
---|
| 337 | } |
---|
| 338 | else { |
---|
| 339 | if( is_numeric($tmp1) && (is_numeric($prev) || $prev === '-' ) ) { |
---|
| 340 | $cord[$idx++] = $xt; |
---|
| 341 | $cord[$idx++] = $yt; |
---|
| 342 | } |
---|
| 343 | } |
---|
| 344 | } |
---|
| 345 | $yt_old = $yt; |
---|
| 346 | $xt_old = $xt; |
---|
| 347 | $y_old = $y; |
---|
| 348 | |
---|
| 349 | $this->StrokeDataValue($img,$this->coords[0][$pnts],$xt,$yt); |
---|
| 350 | |
---|
| 351 | ++$pnts; |
---|
| 352 | } |
---|
| 353 | |
---|
| 354 | if( $this->filled ) { |
---|
| 355 | $cord[$idx++] = $xt; |
---|
| 356 | if( $this->fillFromMax ) { |
---|
| 357 | $cord[$idx++] = $yscale->scale_abs[1]; |
---|
| 358 | } |
---|
| 359 | else { |
---|
| 360 | if( $min > 0 || $this->fillFromMin ) { |
---|
| 361 | $cord[$idx++] = $yscale->Translate($min); |
---|
| 362 | } |
---|
| 363 | else { |
---|
| 364 | $cord[$idx++] = $yscale->Translate(0); |
---|
| 365 | } |
---|
| 366 | } |
---|
| 367 | if( $this->fillgrad ) { |
---|
| 368 | $img->SetLineWeight(1); |
---|
| 369 | $grad = new Gradient($img); |
---|
| 370 | $grad->SetNumColors($this->fillgrad_numcolors); |
---|
| 371 | $grad->FilledFlatPolygon($cord,$this->fillgrad_fromcolor,$this->fillgrad_tocolor); |
---|
| 372 | $img->SetLineWeight($this->weight); |
---|
| 373 | } |
---|
| 374 | else { |
---|
| 375 | $img->SetColor($this->fill_color); |
---|
| 376 | $img->FilledPolygon($cord); |
---|
| 377 | } |
---|
| 378 | if( $this->weight > 0 ) { |
---|
| 379 | $img->SetLineWeight($this->weight); |
---|
| 380 | $img->SetColor($this->color); |
---|
| 381 | // Remove first and last coordinate before drawing the line |
---|
| 382 | // sine we otherwise get the vertical start and end lines which |
---|
| 383 | // doesn't look appropriate |
---|
| 384 | $img->Polygon(array_slice($cord,2,count($cord)-4)); |
---|
| 385 | } |
---|
| 386 | } |
---|
| 387 | |
---|
| 388 | if(!empty($this->filledAreas)) { |
---|
| 389 | |
---|
| 390 | $minY = $yscale->Translate($yscale->GetMinVal()); |
---|
| 391 | $factor = ($this->step_style ? 4 : 2); |
---|
| 392 | |
---|
| 393 | for($i = 0; $i < sizeof($this->filledAreas); ++$i) { |
---|
| 394 | // go through all filled area elements ordered by insertion |
---|
| 395 | // fill polygon array |
---|
| 396 | $areaCoords[] = $cord[$this->filledAreas[$i][0] * $factor]; |
---|
| 397 | $areaCoords[] = $minY; |
---|
| 398 | |
---|
| 399 | $areaCoords = |
---|
| 400 | array_merge($areaCoords, |
---|
| 401 | array_slice($cord, |
---|
| 402 | $this->filledAreas[$i][0] * $factor, |
---|
| 403 | ($this->filledAreas[$i][1] - $this->filledAreas[$i][0] + ($this->step_style ? 0 : 1)) * $factor)); |
---|
| 404 | $areaCoords[] = $areaCoords[sizeof($areaCoords)-2]; // last x |
---|
| 405 | $areaCoords[] = $minY; // last y |
---|
| 406 | |
---|
| 407 | if($this->filledAreas[$i][3]) { |
---|
| 408 | $img->SetColor($this->filledAreas[$i][2]); |
---|
| 409 | $img->FilledPolygon($areaCoords); |
---|
| 410 | $img->SetColor($this->color); |
---|
| 411 | } |
---|
| 412 | // Check if we should draw the frame. |
---|
| 413 | // If not we still re-draw the line since it might have been |
---|
| 414 | // partially overwritten by the filled area and it doesn't look |
---|
| 415 | // very good. |
---|
| 416 | if( $this->filledAreas[$i][4] ) { |
---|
| 417 | $img->Polygon($areaCoords); |
---|
| 418 | } |
---|
| 419 | else { |
---|
| 420 | $img->Polygon($cord); |
---|
| 421 | } |
---|
| 422 | |
---|
| 423 | $areaCoords = array(); |
---|
| 424 | } |
---|
| 425 | } |
---|
| 426 | |
---|
| 427 | if( $this->mark->type == -1 || $this->mark->show == false ) |
---|
| 428 | return; |
---|
| 429 | |
---|
| 430 | for( $pnts=0; $pnts<$numpoints; ++$pnts) { |
---|
| 431 | |
---|
| 432 | if( $exist_x ) { |
---|
| 433 | $x=$this->coords[1][$pnts]; |
---|
| 434 | } |
---|
| 435 | else { |
---|
| 436 | $x=$pnts+$textadj; |
---|
| 437 | } |
---|
| 438 | $xt = $xscale->Translate($x); |
---|
| 439 | $yt = $yscale->Translate($this->coords[0][$pnts]); |
---|
| 440 | |
---|
| 441 | if( is_numeric($this->coords[0][$pnts]) ) { |
---|
| 442 | if( !empty($this->csimtargets[$pnts]) ) { |
---|
| 443 | if( !empty($this->csimwintargets[$pnts]) ) { |
---|
| 444 | $this->mark->SetCSIMTarget($this->csimtargets[$pnts],$this->csimwintargets[$pnts]); |
---|
| 445 | } |
---|
| 446 | else { |
---|
| 447 | $this->mark->SetCSIMTarget($this->csimtargets[$pnts]); |
---|
| 448 | } |
---|
| 449 | $this->mark->SetCSIMAlt($this->csimalts[$pnts]); |
---|
| 450 | } |
---|
| 451 | if( $exist_x ) { |
---|
| 452 | $x=$this->coords[1][$pnts]; |
---|
| 453 | } |
---|
| 454 | else { |
---|
| 455 | $x=$pnts; |
---|
| 456 | } |
---|
| 457 | $this->mark->SetCSIMAltVal($this->coords[0][$pnts],$x); |
---|
| 458 | $this->mark->Stroke($img,$xt,$yt); |
---|
| 459 | $this->csimareas .= $this->mark->GetCSIMAreas(); |
---|
| 460 | } |
---|
| 461 | } |
---|
| 462 | } |
---|
| 463 | } // Class |
---|
| 464 | |
---|
| 465 | |
---|
| 466 | //=================================================== |
---|
| 467 | // CLASS AccLinePlot |
---|
| 468 | // Description: |
---|
| 469 | //=================================================== |
---|
| 470 | class AccLinePlot extends Plot { |
---|
| 471 | protected $plots=null,$nbrplots=0; |
---|
| 472 | private $iStartEndZero=true; |
---|
| 473 | //--------------- |
---|
| 474 | // CONSTRUCTOR |
---|
| 475 | function __construct($plots) { |
---|
| 476 | $this->plots = $plots; |
---|
| 477 | $this->nbrplots = count($plots); |
---|
| 478 | $this->numpoints = $plots[0]->numpoints; |
---|
| 479 | |
---|
| 480 | // Verify that all plots have the same number of data points |
---|
| 481 | for( $i=1; $i < $this->nbrplots; ++$i ) { |
---|
| 482 | if( $plots[$i]->numpoints != $this->numpoints ) { |
---|
| 483 | JpGraphError::RaiseL(10003);//('Each plot in an accumulated lineplot must have the same number of data points',0) |
---|
| 484 | } |
---|
| 485 | } |
---|
| 486 | |
---|
| 487 | for($i=0; $i < $this->nbrplots; ++$i ) { |
---|
| 488 | $this->LineInterpolate($this->plots[$i]->coords[0]); |
---|
| 489 | } |
---|
| 490 | } |
---|
| 491 | |
---|
| 492 | //--------------- |
---|
| 493 | // PUBLIC METHODS |
---|
| 494 | function Legend($graph) { |
---|
| 495 | foreach( $this->plots as $p ) { |
---|
| 496 | $p->DoLegend($graph); |
---|
| 497 | } |
---|
| 498 | } |
---|
| 499 | |
---|
| 500 | function Max() { |
---|
| 501 | list($xmax) = $this->plots[0]->Max(); |
---|
| 502 | $nmax=0; |
---|
| 503 | $n = count($this->plots); |
---|
| 504 | for($i=0; $i < $n; ++$i) { |
---|
| 505 | $nc = count($this->plots[$i]->coords[0]); |
---|
| 506 | $nmax = max($nmax,$nc); |
---|
| 507 | list($x) = $this->plots[$i]->Max(); |
---|
| 508 | $xmax = Max($xmax,$x); |
---|
| 509 | } |
---|
| 510 | for( $i = 0; $i < $nmax; $i++ ) { |
---|
| 511 | // Get y-value for line $i by adding the |
---|
| 512 | // individual bars from all the plots added. |
---|
| 513 | // It would be wrong to just add the |
---|
| 514 | // individual plots max y-value since that |
---|
| 515 | // would in most cases give to large y-value. |
---|
| 516 | $y=$this->plots[0]->coords[0][$i]; |
---|
| 517 | for( $j = 1; $j < $this->nbrplots; $j++ ) { |
---|
| 518 | $y += $this->plots[ $j ]->coords[0][$i]; |
---|
| 519 | } |
---|
| 520 | $ymax[$i] = $y; |
---|
| 521 | } |
---|
| 522 | $ymax = max($ymax); |
---|
| 523 | return array($xmax,$ymax); |
---|
| 524 | } |
---|
| 525 | |
---|
| 526 | function Min() { |
---|
| 527 | $nmax=0; |
---|
| 528 | list($xmin,$ysetmin) = $this->plots[0]->Min(); |
---|
| 529 | $n = count($this->plots); |
---|
| 530 | for($i=0; $i < $n; ++$i) { |
---|
| 531 | $nc = count($this->plots[$i]->coords[0]); |
---|
| 532 | $nmax = max($nmax,$nc); |
---|
| 533 | list($x,$y) = $this->plots[$i]->Min(); |
---|
| 534 | $xmin = Min($xmin,$x); |
---|
| 535 | $ysetmin = Min($y,$ysetmin); |
---|
| 536 | } |
---|
| 537 | for( $i = 0; $i < $nmax; $i++ ) { |
---|
| 538 | // Get y-value for line $i by adding the |
---|
| 539 | // individual bars from all the plots added. |
---|
| 540 | // It would be wrong to just add the |
---|
| 541 | // individual plots min y-value since that |
---|
| 542 | // would in most cases give to small y-value. |
---|
| 543 | $y=$this->plots[0]->coords[0][$i]; |
---|
| 544 | for( $j = 1; $j < $this->nbrplots; $j++ ) { |
---|
| 545 | $y += $this->plots[ $j ]->coords[0][$i]; |
---|
| 546 | } |
---|
| 547 | $ymin[$i] = $y; |
---|
| 548 | } |
---|
| 549 | $ymin = Min($ysetmin,Min($ymin)); |
---|
| 550 | return array($xmin,$ymin); |
---|
| 551 | } |
---|
| 552 | |
---|
| 553 | // Gets called before any axis are stroked |
---|
| 554 | function PreStrokeAdjust($graph) { |
---|
| 555 | |
---|
| 556 | // If another plot type have already adjusted the |
---|
| 557 | // offset we don't touch it. |
---|
| 558 | // (We check for empty in case the scale is a log scale |
---|
| 559 | // and hence doesn't contain any xlabel_offset) |
---|
| 560 | |
---|
| 561 | if( empty($graph->xaxis->scale->ticks->xlabel_offset) || |
---|
| 562 | $graph->xaxis->scale->ticks->xlabel_offset == 0 ) { |
---|
| 563 | if( $this->center ) { |
---|
| 564 | ++$this->numpoints; |
---|
| 565 | $a=0.5; $b=0.5; |
---|
| 566 | } else { |
---|
| 567 | $a=0; $b=0; |
---|
| 568 | } |
---|
| 569 | $graph->xaxis->scale->ticks->SetXLabelOffset($a); |
---|
| 570 | $graph->SetTextScaleOff($b); |
---|
| 571 | $graph->xaxis->scale->ticks->SupressMinorTickMarks(); |
---|
| 572 | } |
---|
| 573 | |
---|
| 574 | } |
---|
| 575 | |
---|
| 576 | function SetInterpolateMode($aIntMode) { |
---|
| 577 | $this->iStartEndZero=$aIntMode; |
---|
| 578 | } |
---|
| 579 | |
---|
| 580 | // Replace all '-' with an interpolated value. We use straightforward |
---|
| 581 | // linear interpolation. If the data starts with one or several '-' they |
---|
| 582 | // will be replaced by the the first valid data point |
---|
| 583 | function LineInterpolate(&$aData) { |
---|
| 584 | |
---|
| 585 | $n=count($aData); |
---|
| 586 | $i=0; |
---|
| 587 | |
---|
| 588 | // If first point is undefined we will set it to the same as the first |
---|
| 589 | // valid data |
---|
| 590 | if( $aData[$i]==='-' ) { |
---|
| 591 | // Find the first valid data |
---|
| 592 | while( $i < $n && $aData[$i]==='-' ) { |
---|
| 593 | ++$i; |
---|
| 594 | } |
---|
| 595 | if( $i < $n ) { |
---|
| 596 | for($j=0; $j < $i; ++$j ) { |
---|
| 597 | if( $this->iStartEndZero ) |
---|
| 598 | $aData[$i] = 0; |
---|
| 599 | else |
---|
| 600 | $aData[$j] = $aData[$i]; |
---|
| 601 | } |
---|
| 602 | } |
---|
| 603 | else { |
---|
| 604 | // All '-' => Error |
---|
| 605 | return false; |
---|
| 606 | } |
---|
| 607 | } |
---|
| 608 | |
---|
| 609 | while($i < $n) { |
---|
| 610 | while( $i < $n && $aData[$i] !== '-' ) { |
---|
| 611 | ++$i; |
---|
| 612 | } |
---|
| 613 | if( $i < $n ) { |
---|
| 614 | $pstart=$i-1; |
---|
| 615 | |
---|
| 616 | // Now see how long this segment of '-' are |
---|
| 617 | while( $i < $n && $aData[$i] === '-' ) { |
---|
| 618 | ++$i; |
---|
| 619 | } |
---|
| 620 | if( $i < $n ) { |
---|
| 621 | $pend=$i; |
---|
| 622 | $size=$pend-$pstart; |
---|
| 623 | $k=($aData[$pend]-$aData[$pstart])/$size; |
---|
| 624 | // Replace the segment of '-' with a linear interpolated value. |
---|
| 625 | for($j=1; $j < $size; ++$j ) { |
---|
| 626 | $aData[$pstart+$j] = $aData[$pstart] + $j*$k ; |
---|
| 627 | } |
---|
| 628 | } |
---|
| 629 | else { |
---|
| 630 | // There are no valid end point. The '-' goes all the way to the end |
---|
| 631 | // In that case we just set all the remaining values the the same as the |
---|
| 632 | // last valid data point. |
---|
| 633 | for( $j=$pstart+1; $j < $n; ++$j ) |
---|
| 634 | if( $this->iStartEndZero ) { |
---|
| 635 | $aData[$j] = 0; |
---|
| 636 | } |
---|
| 637 | else { |
---|
| 638 | $aData[$j] = $aData[$pstart] ; |
---|
| 639 | } |
---|
| 640 | } |
---|
| 641 | } |
---|
| 642 | } |
---|
| 643 | return true; |
---|
| 644 | } |
---|
| 645 | |
---|
| 646 | // To avoid duplicate of line drawing code here we just |
---|
| 647 | // change the y-values for each plot and then restore it |
---|
| 648 | // after we have made the stroke. We must do this copy since |
---|
| 649 | // it wouldn't be possible to create an acc line plot |
---|
| 650 | // with the same graphs, i.e AccLinePlot(array($pl,$pl,$pl)); |
---|
| 651 | // since this method would have a side effect. |
---|
| 652 | function Stroke($img,$xscale,$yscale) { |
---|
| 653 | $img->SetLineWeight($this->weight); |
---|
| 654 | $this->numpoints = count($this->plots[0]->coords[0]); |
---|
| 655 | // Allocate array |
---|
| 656 | $coords[$this->nbrplots][$this->numpoints]=0; |
---|
| 657 | for($i=0; $i<$this->numpoints; $i++) { |
---|
| 658 | $coords[0][$i]=$this->plots[0]->coords[0][$i]; |
---|
| 659 | $accy=$coords[0][$i]; |
---|
| 660 | for($j=1; $j<$this->nbrplots; ++$j ) { |
---|
| 661 | $coords[$j][$i] = $this->plots[$j]->coords[0][$i]+$accy; |
---|
| 662 | $accy = $coords[$j][$i]; |
---|
| 663 | } |
---|
| 664 | } |
---|
| 665 | for($j=$this->nbrplots-1; $j>=0; --$j) { |
---|
| 666 | $p=$this->plots[$j]; |
---|
| 667 | for( $i=0; $i<$this->numpoints; ++$i) { |
---|
| 668 | $tmp[$i]=$p->coords[0][$i]; |
---|
| 669 | $p->coords[0][$i]=$coords[$j][$i]; |
---|
| 670 | } |
---|
| 671 | $p->Stroke($img,$xscale,$yscale); |
---|
| 672 | for( $i=0; $i<$this->numpoints; ++$i) { |
---|
| 673 | $p->coords[0][$i]=$tmp[$i]; |
---|
| 674 | } |
---|
| 675 | $p->coords[0][]=$tmp; |
---|
| 676 | } |
---|
| 677 | } |
---|
| 678 | } // Class |
---|
| 679 | |
---|
| 680 | |
---|
| 681 | /* EOF */ |
---|
| 682 | ?> |
---|