pChart can support data series with missing points. Points that have an undefined values must be declared with the VOID class constant. By default the chart rendering will break on this values and continue again when enough consistent values are found again. You may want to have a chart continuity even in the case of missing values. To do so you can use the BreakVoid option.


The following parameters can be tunned :






Let‘s assume the following dataset :

$myData = new pData();
$myData->addPoints(array(10,-7,-43,VOID,-30,-20,-21,34),"Serie1");
$myData->setSerieDescription("Serie1","Serie 1");

You can turn on the missing point processing this way :

$Config = array("BreakVoid"=>FALSE, "BreakR"=>234, "BreakG"=>55, "BreakB"=>26);
$myPicture->drawSplineChart($Config);

The missing points will be drawn with red lines (RGB 234,55,26).