Re: TPad based legend shown on screen and eps, not png/gif.

Hi Brett,
"dissapearing legend" bug was fixed. Now in CVS. Thanks to you and Mike Kordosky.
Concerning "0.5 millions points drawn as bars" slow drawing I hope to speed up it ~100 times. I'm curious, produced EPS file has a size 8Mbytes and contains PS istructions to draw 0.5 millions lines, how quick this file is printed by PS printer?

Regards. Valeriy

Valeriy Onuchin wrote:

> Hi Brett,
> I LIKE such extreem examples :-) a good chance to improve and
> optimize a code. Yours TGraph has 477575 points (!!!).
> Thanks, that they are not drawn as polymarkers.
> Nevertheless I hope to improve very much TImageDump's performance for such cases.
>
> Thanks for example. Regards. Valeriy
>
> Brett Viren wrote:
>
> > Rene Brun <brun_at_pcroot.cern.ch> writes:
> >
> > > Please send a concrete example reproducing this timing problem and
> > > others. As I said, all what you described has been fixed several days
> > > ago by Valeriy.
> >
> > Hmm, okay. When I built the version I'm using I had some trouble with
> > building ASImage, (confusion between built-in and external versions).
> > I thought I finally worked everything out but maybe not. I'll do a
> > full distclean and update to HEAD and see if this clears the problem
> > up. I'll let you know one way or the other.
> >
> > For completeness, and to prove I'm not crazy (or maybe to prove I
> > am!), a concise test is available at:
> >
> > http://minos.phy.bnl.gov/~bviren/cern/root/test_imagedump.tgz
> >
> > There is a fodder TGraph in the .root file and a driver script. Note
> > that in the dump'ed images (included in the .tgz file) the TGraph is
> > distorted such that it appears to cover most of the canvas.
> >
> > bviren_at_coop:test> root -q -l test_imagedump.C
> > root [0]
> > Processing test_imagedump.C...
> > <TCanvas::MakeDefCanvas>: created default TCanvas with name c1
> > Info in <TCanvas::Print>: eps file pot-print.eps has been created
> > Info in <TCanvas::Print>: file pot-print.png has been created
> > Info in <TCanvas::Print>: file pot-print.gif has been created
> > dumping gif
> > Real time 0:01:14, CP time 73.830
> > dumping png
> > Real time 0:01:14, CP time 73.820
> >
> > Thanks.
> > -Brett.
Received on Fri May 20 2005 - 15:52:53 MEST