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drawPoint 
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Regular pChart user
Regular pChart user

Joined: Wed Jun 01, 2011 11:42 am
Posts: 9
Post drawPoint
Another hack until the feature becomes available.. as usual no guarantee that it works for you ;-P

Add to pDraw.class.php
Code:
function drawPoint($SeriesName, $Index, $Value, $Format="") {
   $R         = isset($Format["R"]) ? $Format["R"] : 0;
   $G         = isset($Format["G"]) ? $Format["G"] : 0;
   $B         = isset($Format["B"]) ? $Format["B"] : 0;
   $Alpha      = isset($Format["Alpha"]) ? $Format["Alpha"] : 100;

   $Data = $this->DataSet->getData();
   list($XMargin,$XDivs) = $this->scaleGetXSettings();
   if ( $XDivs == 0 ) { $XStep = ($this->GraphAreaX2-$this->GraphAreaX1)/4; } else { $XStep = ($this->GraphAreaX2-$this->GraphAreaX1-$XMargin*2)/$XDivs; }
   $X = $this->GraphAreaX1 + $XMargin + $Index * $XStep;
   $Y =  floor($this->scaleComputeY($Value,array("AxisID"=>0)));

   $this->drawFilledCircle($X,$Y,3,array("R"=>$R,"G"=>$G,"B"=>$B,"Alpha"=>$Alpha));
}


Now go for it..
$this->pChart->drawPoint("Date", $index, $weekDay * 60, array("R"=>255));

=> Value must be appropriate for the AXIS format. In my case the Y-value must be given in seconds and weekDay is the day of the week. Doesn't make sense at all, but shows how it works. There's some space for improvement (like different objects or putting images directly), dunno know how I will use it in the end (I just know I need it ;-)), I may post some update to it..


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pcharttest.png
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Fri Jun 24, 2011 4:21 pm
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