Hi,
Your solution cannot work. You should use a THStack of TH2s.
See an example in $ROOTSYS/tutorials/hstack.C
Rene Brun
On Thu, 12 Sep 2002 kmakonyi@nist.gov wrote:
> Hi, Rooters,
>
> I've made a macro which is a simple rebin, but all the bins have different
> colour.
>
> B1(Int_t Minn, Int_t Maxx, Int_t Z){
>
> TH2D** G = new TH2D*[Z];
>
> TFile* File = new TFile("Root.root");
> TCanvas* C = new TCanvas("C");
> TH2D* K = File->Get("h3");
>
> int Unit = (Int_t)ceil((Maxx - Minn)/Z);
> char CTemp[128];
>
> for(Int_t i = 0; i < Z; i++){
> sprintf(CTemp, "G[%i]", i);
> G[i] = new TH2D(CTemp, CTemp,
> K->GetNbinsY(), 1, K->GetNbinsY(),
> Z, 1, Z);
> G[i]->SetLineColor(i + 1);
> }
>
> for(int i = 1; i <= K->GetNbinsX(); i++)
> for(int j = 1; j <= K->GetNbinsY(); j++)
> if(K->GetBinContent(i, j) > Minn){
> int Temp = (Int_t)K->GetBinContent(i, j)/Unit;
> if(Temp < Z)
> G[Temp]-> Fill(j, Temp);
> }
>
>
> int m = G[0]->GetMaximum();
> int p = 0;
> for(int z = 1; z < Z; z++){
> if(G[z]->GetMaximum() > m){
> m = G[z]->GetMaximum();
> p = z;
> }
> }
>
> G[p]->Draw("LEGO1");
> G[p]->GetYaxis()->SetLimits(Minn, Maxx);
> for(Int_t i = 0; i < Z; i++){
> G[i]->GetYaxis()->SetLimits(Minn, Maxx);
> G[i]->Draw("LEGO1SAME");
> }
> }
>
>
> The result is nice enougth, but it seams that most of the bins wouldn't be in
> the "box", but always at the "other end" of the box ...
>
> How can I make a picture like that ( "normal" LEGO with different colors )?
> k.
>
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