Hi,
I am trying to plot approximately 150000 data points into a TGraph2D with colZ, to get a map. However, the required calculation time if horrible, and I don’t know how to fix that.
I have points of the form (x,y,value) and I am reading the date with
graph->SetPoint(nlines,x,y,value);
but
graph->Draw(“colZ”);
take hours… Any idea?
Thanks in advance,
Alexandre