pChart 2.0 online documentation

drawAreaMirror - Mirror one part of the picture

This function allows you to mirror one part of the picture to do some nice looking reflexion effects on your charts.

Calling this function

drawAreaMirror($X,$Y,$Width,$Height,$Format="");

Where :

X,Y are the zone starting positiong.

Width is the width of the zone to mirror.

Height is the heightof the zone to mirror.

Format is an array containing the additional parameters.

Customisation array - Enhance rendering!

It is possible to customize the way your mirrir area will be rendered by playing with this array. Providing a detailled configuration is not mandatory.

You can specify the starting alpha value with StartAlpha. (default is 80)

You can specify the ending alpha value with EndAlpha. (default is 0)[/

Sample script

 /* pChart library inclusions */ 
 include("../class/pData.class.php"); 
 include("../class/pDraw.class.php"); 
 include("../class/pImage.class.php"); 

 /* Create and populate the pData object */ 
 $MyData = new pData();   
 $MyData->addPoints(array(150,220,300,250,420,200,300,200,100),"Server A"); 
 $MyData->addPoints(array(140,0,340,300,320,300,200,100,50),"Server B"); 
 $MyData->setAxisName(0,"Hits"); 
 $MyData->addPoints(array("January","February","March","April","May","Juin","July","August","September"),"Months");
  $MyData->setSerieDescription("Months","Month"); 
 $MyData->setAbscissa("Months"); 
 $MyData->setAbsicssaPosition(AXIS_POSITION_TOP);  

 /* Create the pChart object */ 
 $myPicture = new pImage(700,230,$MyData); 

 /* Turn of Antialiasing */ 
 $myPicture->Antialias = FALSE; 

 /* Add a border to the picture */ 
 $myPicture->drawGradientArea(0,0,700,230,DIRECTION_VERTICAL,array("StartR"=>240,"StartG"=>240,"StartB"=>240,"EndR"=>80,"EndG"=>80,"EndB"=>80,"Alpha"=>100));
  $myPicture->drawGradientArea(0,0,700,230,DIRECTION_HORIZONTAL,array("StartR"=>240,"StartG"=>240,"StartB"=>240,"EndR"=>80,"EndG"=>80,"EndB"=>80,"Alpha"=>20));
  $myPicture->drawRectangle(0,0,699,229,array("R"=>0,"G"=>0,"B"=>0)); 

 /* Set the default font */ 
 $myPicture->setFontProperties(array("FontName"=>"../fonts/pf_arma_five.ttf","FontSize"=>6));
 
 /* Define the chart area */ 
 $myPicture->setGraphArea(60,40,650,200); 

 /* Draw the scale */ 
 $scaleSettings = array("GridR"=>200,"GridG"=>200,"GridB"=>200,"DrawSubTicks"=>TRUE,"CycleBackground"=>TRUE);
 $myPicture->drawScale($scaleSettings); 

 /* Write the chart legend */ 
 $myPicture->drawLegend(580,12,array("Style"=>LEGEND_NOBORDER,"Mode"=>LEGEND_HORIZONTAL));
 
 /* Turn on shadow computing */  
 $myPicture->setShadow(TRUE,array("X"=>1,"Y"=>1,"R"=>0,"G"=>0,"B"=>0,"Alpha"=>10));
 
 /* Draw the chart */ 
 $myPicture->setShadow(TRUE,array("X"=>1,"Y"=>1,"R"=>0,"G"=>0,"B"=>0,"Alpha"=>10));
 $settings = array("Surrounding"=>-30,"InnerSurrounding"=>30,"Interleave"=>0); 
 $myPicture->drawBarChart($settings); 

 /* Draw the bottom black area */ 
 $myPicture->setShadow(FALSE); 
 $myPicture->drawFilledRectangle(0,174,700,230,array("R"=>0,"G"=>0,"B"=>0)); 

 /* Do the mirror effect */ 
 $myPicture->drawAreaMirror(0,174,700,48); 

 /* Draw the horizon line */ 
 $myPicture->drawLine(1,174,698,174,array("R"=>80,"G"=>80,"B"=>80)); 

 /* Render the picture (choose the best way) */ 
 $myPicture->autoOutput("pictures/example.drawAreaMirror.png");

This will print 45.

Last updated on 09/09/2011
by Jean-Damien