On Tue, Nov 17, 2009 at 6:08 AM, kcrisman <kcris...@gmail.com> wrote:
> > Would all these ideas for testing deal with the triangulation issue, > Bill? Your original post seems to imply this. > > - kcrisman I thought that, during triangulation, we could test for NaN values and delete those faces. However, I see now that ParametricSurface.triangulate assumes a regular indexing scheme for the _faces array, so the array must be full. This means that deleting faces must be performed after the mesh has been triangulated, unless we want to change the algorithm significantly. Jason Grout and I actually dealt with these same issues when working on #5514, exclusions for parametric 3D plots, which unfortunately is not entirely finished. Perhaps a better way to get plot3d to handle functions with undefined values would be to finish work on #5514, and then after we encounter undefined values apply a region function (this is the feature that #5514 implements) that serves to exclude those values. I should have recognized this at the beginning! Does that sound like a good course of action? I can definitely revisit #5514. -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
