Re: Color of Bins

From: OKUMURA, Akira <oxon_at_icrr.u-tokyo.ac.jp>
Date: Thu, 8 Nov 2007 12:02:48 -1000


Hello ROOTers,

http://root.cern.ch/root/roottalk/roottalk03/1899.html I read this thread but I could not find the getter in the source of TPaletteAxis.
http://root.cern.ch/root/html/TPaletteAxis.html

Sincerely,

OKUMURA, Akira oxon_at_icrr.u-tokyo.ac.jp
Institute for Cosmic Ray Research, University of Tokyo 5-1-5 Kashiwanoha Kashiwa Chiba 277-8582 Japan Phone/Fax : +81 4-7136-3153
Skype : okumura.akira

On 2007/11/08, at 11:56, OKUMURA, Akira wrote:

> Hello ROOTers,
>
> I have a TH2 histogram which is like a world map. X is longitude,
> and Y is latitude. I would like to change the shape of the
> histogram using Mollweide projection. TPolyLine will be used to
> draw each projected bin.
>
> My question is:
> I would like to retrieve the color of each bin. For example,
>
> TH2F* hist = new ....
> for(int i=0; i<hist->GetNbinsX(); i++){
> for(int j=0; j<hist->GetNbinsY(); j++){
> int col = hist->GetBinColor(i+1, j+1); // <= any idea?
> TPolyLine* pol = new TPolyLine;
> ......
> pol->SetFillColor(col);
> pol->Draw("f");
> }
> }
>
> How can I do like this?
>
> Sincerely
>
> OKUMURA, Akira oxon_at_icrr.u-tokyo.ac.jp
> Institute for Cosmic Ray Research, University of Tokyo
> 5-1-5 Kashiwanoha Kashiwa Chiba 277-8582 Japan
> Phone/Fax : +81 4-7136-3153
> Skype : okumura.akira
>
Received on Thu Nov 08 2007 - 23:03:41 CET

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