Hi everyone, Thanks to Geoff's new version of DelaunayTriangulator it works now, there is no more "out of bound" under VS8. Will this version of file be integrated in a future version of OSG ?
2006/12/6, Geoff Michel <[EMAIL PROTECTED]>:
Amalric and Robert, Well here is the version of delaunaytriangulator which really works. Note that I am sending a small change to Amalric's example to make his new constraint work in synch with other overlapping constraints (which appear after the N key is pressed 2 or 4 times). I was getting triangulations with the previous delaunay triangulator, but it seems I may have been picking up the wrong coordinates or an old version of my test file (that version is OK when no coordinates lie outside the 'terrain' zone). This version is much stricter about memory handling and insertion of extra points. Geoff ----- Original Message ----- *From:* amalric alexandre <[EMAIL PROTECTED]> *To:* osg users <osg-users@openscenegraph.net> *Sent:* Monday, December 04, 2006 11:16 AM *Subject:* Re: [osg-users] Delaunay triangulator of concav geometry Hi everyone, I tried with the last version of DelaunayTriangultor.cpp and it's the same problem it crashes under VS8. Alex. 2006/12/4, Robert Osfield <[EMAIL PROTECTED]>: > > HI Geoff et al, > > Could you guys tests this new version of DelaunayTriangultor.cpp and > if it works out well please say so. Geoff if everything looks solid > could you post the file to osg-submissions. > > Cheers, > Robert. > > On 12/4/06, Geoff Michel <[EMAIL PROTECTED]> wrote: > > > > > > Robert (and Amalric and jOan) > > > > this version of dealunay.cpp works with Amalric's case data and all > the > > cases built into the original example. I still cant see why the > previous > > version worked with VS6 though - it must have exercised the code that > I have > > changed. > > > > The example does show however that the debug built into VS8 is quite > > comprehensive and correctly identified an attempt to read from an > undefined > > element of an STL array (to prevent overrun viruses?). > > > > Anyone else who has seen this problem please attack it with your test > cases! > > > > Geoff > > > > ----- Original Message ----- > > From: amalric alexandre > > To: osg users > > > > Sent: Friday, December 01, 2006 8:58 AM > > Subject: Re: [osg-users] Delaunay triangulator of concav geometry > > > > > > Hi Geoff, I'm agree with you on the fact that this first coordinate is > far > > from others. But in my program I triangulate points clicked by mouse > and it > > works under MS VS 2003 and not with MS VS 2005. > > The main goal of this example was just to demonstrate that under VS > 2003 it > > works and not with MS 2005. Ideally it has to work under the both > > compilator. For me it's a little bug in the DelaunayTriangulator but I > > cannot find where. > > If you have any idea of the problem let me know. > > Thanks. > > > > > > 2006/11/30, Geoff Michel <[EMAIL PROTECTED]>: > > > > > > > > > Dear Alexandre > > > > > > I have tried your case, and it fails as you describe under vs8. > > However...... look at the first coordinate of your added constraint > > > > > > > > > > > > float x=-10000,y=600; > > > > > > bounds->push_back(osg::Vec3(x,y,getheight(x,y))); > > > > > > x=1610,y=900; > > > > > > all the other coordinates are near X=1600-2100. Your constraint is > very > > (very, very, very....) long and thin, and moreover x=-10000 is way > outside > > the terrain. I replaced the first coordinate with x=1000, and no > problem the > > triangulation is fine. > > > > > > Is the -10000 correct (in terms of your problem)? I agree that > ideally the > > triangulator should triangulate absolutely anything, but you are > probably > > near the limits of floating point precision for such a long thin > constraint. > > (other cases of this error are sought). > > > > > > Geoff > > > > > > > > > ----- Original Message ----- > > > From: amalric alexandre > > > To: osg users > > > Sent: Thursday, November 30, 2006 2:03 PM > > > Subject: Re: [osg-users] Delaunay triangulator of concav geometry > > > > > > > > > I found this morning that it's due to MS VS 2005 because I made a > test > > modifying the example "osgDelaunay.cpp" (attached) compiling on MS VS > 2003 > > there is no problem, but compiling with MS VS 2005 the program crashes > in > > function lineBisects(delauneytriangulator.cpp) because of a "out of > range" > > in accessing array "points". It doesn't depend on OSG version (same > problem > > with OSG 1.2 and OSG 1.1). > > > Please see the attached files. > > > > > > Thanks. > > > > > > Alexandre AMALRIC > > > > > > > > > > > > 2006/11/30, jOan < [EMAIL PROTECTED]>: > > > > I have the same problem using DelaunayTriangulator with MS > VS2005. > > > > > > > > > > > > > > > > 2006/11/30, amalric alexandre < [EMAIL PROTECTED]>: > > > > > > > > > > Hi, > > > > > > > > > > I want to triangulate with DelaunayTriangulator a geometry wich > is > > concav. I give to the DelaunayTriangulator a set of point sorted and > to the > > DelaunayConstraint the same set of point (edges of the geometry). But > when i > > call the triangulate() function it crashes in lineBisects() function > because > > of a value out of range. Is it a known bug of triangulator ? or is my > method > > not appropriated ? If it is please explain how it is possible to > triangulate > > a concave geometry ? > > > > > _______________________________________________ > > > > > osg-users mailing list > > > > > osg-users@openscenegraph.net > > > > > http://openscenegraph.net/mailman/listinfo/osg-users > > > > > http://www.openscenegraph.org/ > > > > > > > > > > > > > > > > > > > > > > > > > > -- > > > > jOan Abadie > > > > > > > > _______________________________________________ > > > > osg-users mailing list > > > > osg-users@openscenegraph.net > > > > http://openscenegraph.net/mailman/listinfo/osg-users > > > > http://www.openscenegraph.org/ > > > > > > > > > > > > > > > > > > > > ________________________________ > > > > > > > > _______________________________________________ > > > osg-users mailing list > > > osg-users@openscenegraph.net > > > http://openscenegraph.net/mailman/listinfo/osg-users > > > http://www.openscenegraph.org/ > > > > > > > > > > > > > > > > > > > > > _______________________________________________ > > > osg-users mailing list > > > osg-users@openscenegraph.net > > > http://openscenegraph.net/mailman/listinfo/osg-users > > > http://www.openscenegraph.org/ > > > > > > > > > > > > > > ________________________________ > > > > > > _______________________________________________ > > osg-users mailing list > > osg-users@openscenegraph.net > > http://openscenegraph.net/mailman/listinfo/osg-users > > http://www.openscenegraph.org/ > > > > > > > > _______________________________________________ > > osg-users mailing list > > osg-users@openscenegraph.net > > http://openscenegraph.net/mailman/listinfo/osg-users > > http://www.openscenegraph.org/ > > > > > > > _______________________________________________ > osg-users mailing list > osg-users@openscenegraph.net > http://openscenegraph.net/mailman/listinfo/osg-users > http://www.openscenegraph.org/ > ------------------------------ _______________________________________________ osg-users mailing list osg-users@openscenegraph.net http://openscenegraph.net/mailman/listinfo/osg-users http://www.openscenegraph.org/ _______________________________________________ osg-users mailing list osg-users@openscenegraph.net http://openscenegraph.net/mailman/listinfo/osg-users http://www.openscenegraph.org/
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