Hi,
The Canvas now remains, but the PS file is still empty,
unfortunately. Also, in the Plot() macro the postscript
file is closed before the canvas goes out of existence,
so I would not expect this to matter.
Cheers,
Marc
-----Ursprungliche Nachricht-----
Von: Olivier Couet [mailto:Olivier.Couet@cern.ch]
Gesendet: Montag, 29. Marz 2004 11:02
An: Marc de Kamps
Cc: roottalk@pcroot.cern.ch
Betreff: Re: [ROOT] Empty postscript files
Hi,
I do not see the problem on linux (PS file is ok) but the Canvas is
closed immediately after execution. This is because you do not use
pointers. May be on windows the PS file is not created. Anyway, try this
version:
void DumpCanvas()
{
gROOT->Reset();
TCanvas *c1 = new TCanvas("c1","Example",200,10,700,500);
TH1F *h1 = new TH1F("h1","wysiwyg",100,0,1);
h1->Fill(0.5,1);
h1->Draw();
c1->Print("Equally_beautiful_histo.ps");
}
Cheers, O.Couet
On Mon, 29 Mar 2004, Marc de Kamps wrote:
> Hi,
>
> Both macros below create empty ps files.
> This is 3.10/02 under win2000 (win32gdk version).
> What to do ?
>
> Thanks,
> Marc
>
>
>
> void Plot()
> {
> gROOT->Reset();
>
> TCanvas c1;
>
> TPostScript ps("Beautiful_histo.ps",111);
> TH1F h1("h1","wysiwyg",100,0,1);
> h1.Fill(0.5,1);
> h1.Draw();
>
> c1.Update();
>
> ps.Close();
> }
>
> void DumpCanvas()
> {
> gROOT->Reset();
>
> TCanvas c1;
>
> TH1F h1("h1","wysiwyg",100,0,1);
> h1.Fill(0.5,1);
> h1.Draw();
>
> c1.Update();
>
> c1.Print("Equally_beautiful_histo.ps");
> }
>
>
--
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