Dear rooters,
The Y-scale in TGraphs seems to get lost if written to file.
I am filling TGraphs in my standalone program using root routines,
which I then save to a root file with the command:
pGraph->Write(pGraph->GetName());
When I then read it back into root I find the graph in the file,
but when I try to Draw it with
TFile f("tracks.root");
TGraph* gY = (TGraph*)f.Get("Graph BML wrt BIL (2,2)");
TCanvas *cgy = new TCanvas("Example Graph","Example Graph");
gY->Draw("A*");
No points are shown, because the Y-axis scale is wrong (-1 .. +1).
The x-axis scale is Ok. If I change the Y-scale (-50 .. +10),
then the points appear again.
This seems to be a bug to me.
Best regards,
Martin.
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