Hi Ray, I already answered a similar question this afternoon. In your case, you can do something like: // choose xmin,xmax,ymin,ymax at your convenience. //here, I show xmin=0, xmax=nx, etc. TH2F *h2 = new TH2F("h2","some title",nx,0,nx,ny,0,ny); for (int i=0;i<nx;i++) { for (int j=0;j<ny;j++) { h2->Fill(x[i],y[i],z[i][j]); } } h2->Draw("surf"); //look at $ROOTSYS/tutorials/draw2dopt.C for examples Rene Brun On Thu, 21 Dec 2000, Ray Fliller III wrote: > > > Hello Rooters, > > Given 2 arrays X and Y and a 2D array Z where Z[i][j]=Z(X[i],Y[j]), > how do I make a graph of this?? There is no TGraph2D, perhaps this could > be an added class.... > > Ray > > ============================================================================== > Ray Fliller: rfliller@bnl.gov Office Phone: (631)-344-6124 > C-A Accelerator Physics > Building 911 > Brookhaven National Lab > Upton, NY 11973 Office: Room 211 > ============================================================================== >
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