No, this is not a bug! Series can be drawn as black in at least two circumstances.


Everything is in the title! Remember, basically pChart embed only colors for 8 series. If you have more than 8 series, you'll need to add colors to you palette. The setColorPalette() is here to help you!

setColorPalette(8,255,0,0);
setColorPalette(9,0,255,0);
setColorPalette(10,0,0,255);

you can also load a color scheme (assuming it contains enough colors!) :

$Test->loadColorPalette('palette.txt');

logical no?


This bug has been fixed since version 1.27

In order to keep the association between color ID and series in case you are dynamically removing series (when using drawArea() for example) some drawing function needs that all serie have a description. To add a description to one serie, use the SetSerieName() method from the pData class :

$DataSet->SetSerieName("January","Serie1");
$DataSet->SetSerieName("February","Serie2");
$DataSet->SetSerieName("March","Serie3");

not logical, I know.