Hi all;
I a m programming a nurb viewer using a 3d engine (written in c++). I
am using glu api to create the nurb and then tissalate it.
I have got this error when I try to trim the surface. The same code
work fine when I use Opengl to draw the nurb. And I succeded to view a
non trimmed surface with the engine. But when I trimm it 
this is
What i got :
checkjarc: geometric linkage screwed up 3
PWLARC NP: 2 FL: 1
VERTEX 0.250000 0.500000
VERTEX 0.000000 0.000000
PWLARC NP: 2 FL: 1
VERTEX 0.250000 0.250000
VERTEX 0.000000 0.000000
Assertion failed: bin.firstarc()->check() != 0, file …\src
\glu\sgi\lib
nurbs\internals\subdivider.cc, line 658
Can some gentil man help me.
kind regards