[Kmatplot-general] Contour with kmatplot

[leslie <le...@in...>]

I am trying to use kmatplot to draw non-filled contour with differents
colors or line styles. Could help me how to do that with kmatplot?
I try yo use QSGraphicalData::setLine (int e, const QSGLine &line) but I

do not understand the exact meaning of the int element e.


Best regards

Leslie