Superimpose TH2 with "colz" option with different TH2 with "cont3" option

[Pepe_Le_Pew]

Two magic words: “transparent pad”:

Border when using cont4z

Well, just try the macro from the last post in [url]Vertical shaded area [:mrgreen:] You can try to play with it … this way … { TF2 *f = new TF2("f", "x*x+y*y", -3, 3, -5, 5); f->SetNpx(100); f->SetNpy(100); f->SetLineWidth(1.0); // ... … and … that way … { TF2 *f = new TF2("f", "x*x+y*y", -3, 3, -5, 5); f->SetNpx(10); f->SetNpy(10); f->SetLineWidth(1.0); // ...

gPad->GetUxmin(),GetUxmax() for 2D histogram

null->Range(x1-(x2-x1)*(lm/(1-rm-lm)), y1-(y2-y1)*(bm/(1-tm-bm)), x2+(x2-x1)*(rm/(1-rm-lm)), y2+(y2-y1)*(tm/(1-tm-bm)));