Curve with more than one color?

[sylphide]

Hi,
Is it possible to bind pixel's colors to sample's values?
For instance I want to have all my points below 5 in red and blue if above...
Is there a way to do that or should I find something else?
Thanks.

[Uwe]

Maybe QwtPlotSpectroCurve (http://qwt.sourceforge.net/class_qwt_plot_spectro_curve.html) ?

Uwe