Thanks for the quick reply.
Unfortunately, I tried it under root 3.02/02 and the problem persists.
gObjectTable->Print() reports no problems however. But the
memory usage (using top) keeps increasing on each iteration
of the Print() method...
Actually, I also have a related question. The reason I
print the postscript file is to convert it to gif (via
pstopnm and ppmtogif). This is a slowish process, and I
was wondering if there is a faster way to get a gif of
a canvas?
Tome
On Fri, 2 Nov 2001, Rene Brun wrote:
> Hi Tome,
>
> This problem has already been fixed.
> Move to a more recent version.
>
> Rene Brun
>
> Tome Anticic wrote:
> >
> > Hi,
> >
> > I would really appreciate if somebody could tell
> > me what I am doing wrong.
> >
> > I need to generate a lot of plots at short intervals.
> > So I do a graph in a canvas and use the Print() method
> > to print a postscript file . But I noticed that the
> > Print() method causes an increasing amount of memory to be
> > used. How can I prevent this and free the memory?
> > Below is a sample code where
> > this can be observed (do top from a shell and watch...)
> >
> > Any help would be appreciated. I use root 3.00 /egcs 2.91.66
> >
> > Thanks,
> > Tome
> >
> > void testMemory()
> > {
> > Float_t X[100];
> > Float_t Y[100];
> >
> > TCanvas *c1;
> > c1 = new TCanvas("c1","canvas");
> >
> > for (Int_t i=0; i< 100;i++) {
> > X[i] = i;
> > Y[i] = i;
> > }
> > TGraph* grh = new TGraph(100,X,Y);
> > grh->Draw("AL");
> >
> > while (1) {
> > cout << " do plot " << endl;
> > c1->Update();
> > // this causes memory to be used and NOT freed
> > c1->Print("xxx.eps");
> > }
> > }
>
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