Can't select sphere to add assembly constraint

[Pingen]

Hi.

I'm trying to add offset and surface constrains to a spherical part, but Catia doesn't allow me to select this part, or any other curved surfaces in the assembly.

I had this type of constrains added to the sphere earlier and there was no problem defining those. Then, I removed the existing constrains only to decide that I accually really did want them. But this, the second time, Catia just won't let me access curved surfaces.

What might cause this problem?

Pingen

 

[Pingen]

..I'm experimenting with different global scalings and I just discovered that I can access curved surfaces, only if I use the original geometrical scale.

The problem still remains though. Especially since the constraints become non-valid when I change the geometrical scale.

All other aspect of the scaling works perfect, none of the other constrains cause any problems.

Pingen