Subject: CGAL users discussion list
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- From: Alvin Smith <>
- To: <>
- Subject: RE: [cgal-discuss] Tutorial for visualisation in CGAL using QT
- Date: Mon, 22 Oct 2012 11:04:35 -0600
- Importance: Normal
Monsieur Rineau,
Thank you for taking the time to respond to my post. May I point out, however, that your response is not very helpful? I have seen many posts on this list that when someone has a difficult question, the automatic response is, "Read the full manual," or, "This is beyond the scope of CGAL."
No one could agree that having everyone becoming an expert in QT drawing routines and writing from scratch methods for drawing CGAL objects is a good use of time. "Well tough bananas!" someone might respond, "Why should we support idiots who can't bother to fully understand QT?"
There is some truth in this, but there is also a demo (Polyhedron) packaged with CGAL that actually does all of this! My point was that this demo is fairly complicated, and not very useful as a tutorial. As you see, my question was actually to ask if there was a simpler demo, or some other method to to visualize. A better answer than the one you provided would have been, "What you're looking for does not exist," or, "Go use meshlab," or even better, "Here's a demo that some guy put together awhile ago show someone exactly how to do this."
Cheers!
-AS
Thank you for taking the time to respond to my post. May I point out, however, that your response is not very helpful? I have seen many posts on this list that when someone has a difficult question, the automatic response is, "Read the full manual," or, "This is beyond the scope of CGAL."
No one could agree that having everyone becoming an expert in QT drawing routines and writing from scratch methods for drawing CGAL objects is a good use of time. "Well tough bananas!" someone might respond, "Why should we support idiots who can't bother to fully understand QT?"
There is some truth in this, but there is also a demo (Polyhedron) packaged with CGAL that actually does all of this! My point was that this demo is fairly complicated, and not very useful as a tutorial. As you see, my question was actually to ask if there was a simpler demo, or some other method to to visualize. A better answer than the one you provided would have been, "What you're looking for does not exist," or, "Go use meshlab," or even better, "Here's a demo that some guy put together awhile ago show someone exactly how to do this."
Cheers!
-AS
> From:
> To:
> Date: Mon, 22 Oct 2012 11:38:13 +0200
> Subject: Re: [cgal-discuss] Tutorial for visualisation in CGAL using QT
>
> Le dimanche 21 octobre 2012 21:05:26 Alvin Smith a écrit :
> > Hello everybody,
> >
> > I am trying to visualize a few things in CGAL. I am definitely a beginner
> > to CGAL, but I've been able to turn a point cloud into a surface using the
> > surface reconstruction routines. At least, I think I have, but I can't
> > visualize the result, nor can I visualize the point cloud for that matter
> > without resorting to using Matlab.
> >
> > I'd like to do this with QT, as geomview looks crufty and old, and maybe I
> > have to show my result to a non-technical person and convince them that I
> > am a serious person.
> >
> > The documentation is insufficient:
> >
> > http://www.cgal.org/Manual/latest/doc_html/cgal_manual/GraphicsView/Chapter_
> > main.html
>
> That documentation requires that you have read the documentation of the Qt
> Graphics View Framework:
>
> http://doc.qt.digia.com/latest/graphicsview.html
>
> and you should also know about Qt. The CGAL manual does not even try to be a
> tutorial for making Qt demos. You should learn Qt using the Qt manual and Qt
> tutorials. For examples, Qt Graphics View examples:
>
> http://doc.qt.digia.com/latest/examples-graphicsview.html
>
> --
> Laurent Rineau, PhD
> R&D Engineer at GeometryFactory http://www.geometryfactory.com/
> Release Manager of the CGAL Project http://www.cgal.org/
>
>
> --
> You are currently subscribed to cgal-discuss.
> To unsubscribe or access the archives, go to
> https://sympa.inria.fr/sympa/info/cgal-discuss
>
>
> To:
> Date: Mon, 22 Oct 2012 11:38:13 +0200
> Subject: Re: [cgal-discuss] Tutorial for visualisation in CGAL using QT
>
> Le dimanche 21 octobre 2012 21:05:26 Alvin Smith a écrit :
> > Hello everybody,
> >
> > I am trying to visualize a few things in CGAL. I am definitely a beginner
> > to CGAL, but I've been able to turn a point cloud into a surface using the
> > surface reconstruction routines. At least, I think I have, but I can't
> > visualize the result, nor can I visualize the point cloud for that matter
> > without resorting to using Matlab.
> >
> > I'd like to do this with QT, as geomview looks crufty and old, and maybe I
> > have to show my result to a non-technical person and convince them that I
> > am a serious person.
> >
> > The documentation is insufficient:
> >
> > http://www.cgal.org/Manual/latest/doc_html/cgal_manual/GraphicsView/Chapter_
> > main.html
>
> That documentation requires that you have read the documentation of the Qt
> Graphics View Framework:
>
> http://doc.qt.digia.com/latest/graphicsview.html
>
> and you should also know about Qt. The CGAL manual does not even try to be a
> tutorial for making Qt demos. You should learn Qt using the Qt manual and Qt
> tutorials. For examples, Qt Graphics View examples:
>
> http://doc.qt.digia.com/latest/examples-graphicsview.html
>
> --
> Laurent Rineau, PhD
> R&D Engineer at GeometryFactory http://www.geometryfactory.com/
> Release Manager of the CGAL Project http://www.cgal.org/
>
>
> --
> You are currently subscribed to cgal-discuss.
> To unsubscribe or access the archives, go to
> https://sympa.inria.fr/sympa/info/cgal-discuss
>
>
- [cgal-discuss] Tutorial for visualisation in CGAL using QT, Alvin Smith, 10/22/2012
- Re: [cgal-discuss] Tutorial for visualisation in CGAL using QT, Alex Tsui, 10/22/2012
- Re: [cgal-discuss] Tutorial for visualisation in CGAL using QT, Laurent Rineau (CGAL/GeometryFactory), 10/22/2012
- RE: [cgal-discuss] Tutorial for visualisation in CGAL using QT, Alvin Smith, 10/22/2012
- Re: [cgal-discuss] Tutorial for visualisation in CGAL using QT, Philipp Moeller, 10/22/2012
- Re: RE: [cgal-discuss] Tutorial for visualisation in CGAL using QT, Laurent Rineau (CGAL/GeometryFactory), 10/23/2012
- Re: [cgal-discuss] Tutorial for visualisation in CGAL using QT, Olivier Devillers, 10/23/2012
- RE: [cgal-discuss] Tutorial for visualisation in CGAL using QT, Alvin Smith, 10/24/2012
- Re: RE: [cgal-discuss] Tutorial for visualisation in CGAL using QT, Laurent Rineau (CGAL/GeometryFactory), 10/24/2012
- RE: [cgal-discuss] Tutorial for visualisation in CGAL using QT, Alvin Smith, 10/22/2012
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