Load IGES - Visiblity and Face Orientation

[Tiago.Rodrigues]

Hi!

I have 2 IGS files that load diferently between your system and other CAD programs.
The first case is an object that is inside the IGS file but is it (I guess) marked and invisible, so in other CAD programs it does not appear. But appears visible when i load it from your library.

SOLIDWORKS


CAD VCL


File Link
https://www.dropbox.com/s/ztlp5hv1c2emv ... y.igs?dl=0

The other issue may be trickier
The spheres 'orientation' seems to be oposite between both systems.

CAD VCL


SOLIDWORKS


File Link
https://www.dropbox.com/s/ovlrird25wlb3 ... n.IGS?dl=0

I understand that this could be hard to do but if you are thinking about improving the component, you should/could check this out
Thank you

[support]

Hello Tiago,

CAD VCL uses OPEN CASCADE libraries for IGES import, so the 3D import issues may be related to these 3rd party libraries. To verify this, we are using CAD Exchanger software which uses the OPEN CASCADE. Based on the comparison with CAD Exchanger, we can say that the visibility issue hasn't any concern with OPEN CASCADE libraries and may be solved in the CAD VCL code, but the face orientation issue is present in CAD Exchanger as well.


Mikhail