CGAL users discussion list

["Wayne C. Gramlich" <>]

Greetings:

I have been using the demo/nef_3_homogeneous program quite extensively
in my code and it has been *extremely* robust.

Recently I have come up with a relatively simple case where it fails
for me.  The two attached files -- "cube.off" and "notched.off"
trigger tha failure as follows:

  nef_3_homogeneous loadoff notched.off loadoff cube.off union vis

and the result looks correct.  However, when I change the operation
from "union" to either "inters" or "diff", the result behaves as if
"notched.off" is just a skin, rather than a filled volume.  I have
used the excellent "meshlab" program to verify that all the triangle
normals are pointed in the right direction for "notched.off".

I am running CGAL 3.8 on Ubuntu 10.4 with gcc 4.4.3 using the 32-bit
x86 hardware.

Does anybody have insight into what the issue might be?

Thank you,

-Wayne
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