| <?php | <?php |
| /*======================================================================= | /*======================================================================= |
| // File: JPGRAPH_ERROR.PHP | // File: JPGRAPH_ERROR.PHP |
| // Description: Error plot extension for JpGraph | // Description: Error plot extension for JpGraph |
| // Created: 2001-01-08 | // Created: 2001-01-08 |
| // Ver: $Id: jpgraph_error.php 1106 2009-02-22 20:16:35Z ljp $ | // Ver: $Id: jpgraph_error.php 1106 2009-02-22 20:16:35Z ljp $ |
| // | // |
| // Copyright (c) Aditus Consulting. All rights reserved. | // Copyright (c) Aditus Consulting. All rights reserved. |
| //======================================================================== | //======================================================================== |
| */ | */ |
| //=================================================== | //=================================================== |
| // CLASS ErrorPlot | // CLASS ErrorPlot |
| // Description: Error plot with min/max value for | // Description: Error plot with min/max value for |
| // each datapoint | // each datapoint |
| //=================================================== | //=================================================== |
| class ErrorPlot extends Plot { | class ErrorPlot extends Plot { |
| private $errwidth=2; | private $errwidth=2; |
| //--------------- | //--------------- |
| // CONSTRUCTOR | // CONSTRUCTOR |
| function __construct($datay,$datax=false) { | function __construct($datay,$datax=false) { |
| parent::__construct($datay,$datax); | parent::__construct($datay,$datax); |
| $this->numpoints /= 2; | $this->numpoints /= 2; |
| } | } |
| //--------------- | //--------------- |
| // PUBLIC METHODS | // PUBLIC METHODS |
| // Gets called before any axis are stroked | // Gets called before any axis are stroked |
| function PreStrokeAdjust($graph) { | function PreStrokeAdjust($graph) { |
| if( $this->center ) { | if( $this->center ) { |
| $a=0.5; $b=0.5; | $a=0.5; $b=0.5; |
| ++$this->numpoints; | ++$this->numpoints; |
| } else { | } else { |
| $a=0; $b=0; | $a=0; $b=0; |
| } | } |
| $graph->xaxis->scale->ticks->SetXLabelOffset($a); | $graph->xaxis->scale->ticks->SetXLabelOffset($a); |
| $graph->SetTextScaleOff($b); | $graph->SetTextScaleOff($b); |
| //$graph->xaxis->scale->ticks->SupressMinorTickMarks(); | //$graph->xaxis->scale->ticks->SupressMinorTickMarks(); |
| } | } |
| // Method description | // Method description |
| function Stroke($img,$xscale,$yscale) { | function Stroke($img,$xscale,$yscale) { |
| $numpoints=count($this->coords[0])/2; | $numpoints=count($this->coords[0])/2; |
| $img->SetColor($this->color); | $img->SetColor($this->color); |
| $img->SetLineWeight($this->weight); | $img->SetLineWeight($this->weight); |
| if( isset($this->coords[1]) ) { | if( isset($this->coords[1]) ) { |
| if( count($this->coords[1])!=$numpoints ) | if( count($this->coords[1])!=$numpoints ) |
| JpGraphError::RaiseL(2003,count($this->coords[1]),$numpoints); | JpGraphError::RaiseL(2003,count($this->coords[1]),$numpoints); |
| //("Number of X and Y points are not equal. Number of X-points:".count($this->coords[1])." Number of Y-points:$numpoints"); | //("Number of X and Y points are not equal. Number of X-points:".count($this->coords[1])." Number of Y-points:$numpoints"); |
| else | else |
| $exist_x = true; | $exist_x = true; |
| } | } |
| else | else |
| $exist_x = false; | $exist_x = false; |
| for( $i=0; $i<$numpoints; ++$i) { | for( $i=0; $i<$numpoints; ++$i) { |
| if( $exist_x ) | if( $exist_x ) |
| $x=$this->coords[1][$i]; | $x=$this->coords[1][$i]; |
| else | else |
| $x=$i; | $x=$i; |
| if( !is_numeric($x) || | if( !is_numeric($x) || |
| !is_numeric($this->coords[0][$i*2]) || !is_numeric($this->coords[0][$i*2+1]) ) { | !is_numeric($this->coords[0][$i*2]) || !is_numeric($this->coords[0][$i*2+1]) ) { |
| continue; | continue; |
| } | } |
| $xt = $xscale->Translate($x); | $xt = $xscale->Translate($x); |
| $yt1 = $yscale->Translate($this->coords[0][$i*2]); | $yt1 = $yscale->Translate($this->coords[0][$i*2]); |
| $yt2 = $yscale->Translate($this->coords[0][$i*2+1]); | $yt2 = $yscale->Translate($this->coords[0][$i*2+1]); |
| $img->Line($xt,$yt1,$xt,$yt2); | $img->Line($xt,$yt1,$xt,$yt2); |
| $img->Line($xt-$this->errwidth,$yt1,$xt+$this->errwidth,$yt1); | $img->Line($xt-$this->errwidth,$yt1,$xt+$this->errwidth,$yt1); |
| $img->Line($xt-$this->errwidth,$yt2,$xt+$this->errwidth,$yt2); | $img->Line($xt-$this->errwidth,$yt2,$xt+$this->errwidth,$yt2); |
| } | } |
| return true; | return true; |
| } | } |
| } // Class | } // Class |
| //=================================================== | //=================================================== |
| // CLASS ErrorLinePlot | // CLASS ErrorLinePlot |
| // Description: Combine a line and error plot | // Description: Combine a line and error plot |
| // THIS IS A DEPRECATED PLOT TYPE JUST KEPT FOR | // THIS IS A DEPRECATED PLOT TYPE JUST KEPT FOR |
| // BACKWARD COMPATIBILITY | // BACKWARD COMPATIBILITY |
| //=================================================== | //=================================================== |
| class ErrorLinePlot extends ErrorPlot { | class ErrorLinePlot extends ErrorPlot { |
| public $line=null; | public $line=null; |
| //--------------- | //--------------- |
| // CONSTRUCTOR | // CONSTRUCTOR |
| function __construct($datay,$datax=false) { | function __construct($datay,$datax=false) { |
| parent::__construct($datay,$datax); | parent::__construct($datay,$datax); |
| // Calculate line coordinates as the average of the error limits | // Calculate line coordinates as the average of the error limits |
| $n = count($datay); | $n = count($datay); |
| for($i=0; $i < $n; $i+=2 ) { | for($i=0; $i < $n; $i+=2 ) { |
| $ly[]=($datay[$i]+$datay[$i+1])/2; | $ly[]=($datay[$i]+$datay[$i+1])/2; |
| } | } |
| $this->line=new LinePlot($ly,$datax); | $this->line=new LinePlot($ly,$datax); |
| } | } |
| //--------------- | //--------------- |
| // PUBLIC METHODS | // PUBLIC METHODS |
| function Legend($graph) { | function Legend($graph) { |
| if( $this->legend != "" ) | if( $this->legend != "" ) |
| $graph->legend->Add($this->legend,$this->color); | $graph->legend->Add($this->legend,$this->color); |
| $this->line->Legend($graph); | $this->line->Legend($graph); |
| } | } |
| function Stroke($img,$xscale,$yscale) { | function Stroke($img,$xscale,$yscale) { |
| parent::Stroke($img,$xscale,$yscale); | parent::Stroke($img,$xscale,$yscale); |
| $this->line->Stroke($img,$xscale,$yscale); | $this->line->Stroke($img,$xscale,$yscale); |
| } | } |
| } // Class | } // Class |
| //=================================================== | //=================================================== |
| // CLASS LineErrorPlot | // CLASS LineErrorPlot |
| // Description: Combine a line and error plot | // Description: Combine a line and error plot |
| //=================================================== | //=================================================== |
| class LineErrorPlot extends ErrorPlot { | class LineErrorPlot extends ErrorPlot { |
| public $line=null; | public $line=null; |
| //--------------- | //--------------- |
| // CONSTRUCTOR | // CONSTRUCTOR |
| // Data is (val, errdeltamin, errdeltamax) | // Data is (val, errdeltamin, errdeltamax) |
| function __construct($datay,$datax=false) { | function __construct($datay,$datax=false) { |
| $ly=array(); $ey=array(); | $ly=array(); $ey=array(); |
| $n = count($datay); | $n = count($datay); |
| if( $n % 3 != 0 ) { | if( $n % 3 != 0 ) { |
| JpGraphError::RaiseL(4002); | JpGraphError::RaiseL(4002); |
| //('Error in input data to LineErrorPlot. Number of data points must be a multiple of 3'); | //('Error in input data to LineErrorPlot. Number of data points must be a multiple of 3'); |
| } | } |
| for($i=0; $i < $n; $i+=3 ) { | for($i=0; $i < $n; $i+=3 ) { |
| $ly[]=$datay[$i]; | $ly[]=$datay[$i]; |
| $ey[]=$datay[$i]+$datay[$i+1]; | $ey[]=$datay[$i]+$datay[$i+1]; |
| $ey[]=$datay[$i]+$datay[$i+2]; | $ey[]=$datay[$i]+$datay[$i+2]; |
| } | } |
| parent::__construct($ey,$datax); | parent::__construct($ey,$datax); |
| $this->line=new LinePlot($ly,$datax); | $this->line=new LinePlot($ly,$datax); |
| } | } |
| //--------------- | //--------------- |
| // PUBLIC METHODS | // PUBLIC METHODS |
| function Legend($graph) { | function Legend($graph) { |
| if( $this->legend != "" ) | if( $this->legend != "" ) |
| $graph->legend->Add($this->legend,$this->color); | $graph->legend->Add($this->legend,$this->color); |
| $this->line->Legend($graph); | $this->line->Legend($graph); |
| } | } |
| function Stroke($img,$xscale,$yscale) { | function Stroke($img,$xscale,$yscale) { |
| parent::Stroke($img,$xscale,$yscale); | parent::Stroke($img,$xscale,$yscale); |
| $this->line->Stroke($img,$xscale,$yscale); | $this->line->Stroke($img,$xscale,$yscale); |
| } | } |
| } // Class | } // Class |
| /* EOF */ | /* EOF */ |
| ?> | ?> |