Re: [ROOT] PNG output?

From: Valeriy Onuchin (Valeri.Onoutchine@cern.ch)
Date: Fri Apr 09 2004 - 10:23:50 MEST


Just FYI, it's ready under "multithreaded version of ROOT under Windows ".
Strangelly enough, it is not in CVS yet.

Regards. Valeriy


> He VAlii,
> do you really tried ever) "what you promoted"
> or you  just repeat(beleave to) an advertisment (sorry, missspelling)
> 
> Regards. Valeriy
> 
> ----- Original Message ----- 
> From: "Valeri Fine" <fine@bnl.gov>
> To: "'Valeriy Onuchin'" <Valeri.Onoutchine@cern.ch>; "'Andy Buckley'" <buckley@hep.phy.cam.ac.uk>; <roottalk@cern.ch>
> Sent: Friday, April 09, 2004 12:54 AM
> Subject: RE: [ROOT] PNG output?
> 
> 
> > He VAliey
> >   
> > 
> >   Can you make a tine correction for 
> >   $ROOTSYS/tutotrials/pad2png.C
> > 
> >  Please add an operator
> >     c->Update()
> >  just before 
> >      gSystem->ProcessEvents();
> > 
> > So entire macro to be as follows:
> > 
> > (hires07) [151] more  pad2png.C
> > void pad2png()
> > {
> >    // Create a canvas and save as png.
> > 
> >    TCanvas *c = new TCanvas;
> >    TH1F *h = new TH1F("gaus", "gaus", 100, -5, 5);
> >    h->FillRandom("gaus", 10000);
> >    h->Draw();
> > 
> >    c->Update();
> >    gSystem->ProcessEvents();
> > 
> >    TImage *img = TImage::Create();
> > 
> >    //img->FromPad(c, 10, 10, 300, 200);
> >    img->FromPad(c);
> > 
> >    img->WriteImage("canvas.png");
> > 
> >    delete h;
> >    delete c;
> >    delete img;
> > }
> > 
> > To help the multithreaded version of ROOT with Qt layer under Windows.
> > It causes no harm.
> > Thank you in advance,  
> > 
> > ----
> > Best regards
> >                    Valeri
> > 
> > 
> > > -----Original Message-----
> > > From: owner-roottalk@pcroot.cern.ch
> > [mailto:owner-roottalk@pcroot.cern.ch] On
> > > Behalf Of Valeriy Onuchin
> > > Sent: Thursday, April 08, 2004 3:58 PM
> > > To: Andy Buckley; roottalk@cern.ch
> > > Subject: Re: [ROOT] PNG output?
> > > 
> > >  Hi Andy,
> > > ROOT supports "PNG bitmap".
> > > Please, check $ROOTSYS/tutotrials/pad2png.C
> > > 
> > > Regards. Valeriy
> > > 
> > > win32gdk PNG is "almost ready" :-)
> > > 
> > > >
> > > > Hi again,
> > > >
> > > > Is there any possibility that PNG bitmap output can be supplied in
> > ROOT
> > > > in addition to GIF format? This would be very nice, since GIF has a
> > > > certain stigma due to the LZW compression patent (even thought I
> > believe
> > > > it's now expired) and since PNG is simply a nicer, more modern
> > format.
> > > > Apologies if it's already supported --- I couldn't find any mention
> > of
> > > > it in the 4.00/03 release notes.
> > > >
> > > > Also, is there a way (e.g. a .rootrc directive) to specify the
> > preferred
> > > > output format from the canvas menu rather than have to drag the
> > > > drop-down list to the right position each time? This would also be
> > nice,
> > > > but is rather less important!
> > > >
> > > > Andy
> > > >
> > > > --
> > > > Andy Buckley, HEP Group, Cavendish Lab, Cambridge
> > > > http://www.insectnation.org
> > > >
> > > >
> > 
> > 
> 



This archive was generated by hypermail 2b29 : Sun Jan 02 2005 - 05:50:07 MET