Need Help on OpenCascade..Urgent!!!!!!!!!!!!!!!!!

We have created a small Assembly with 2 components in CATIA and exported it as a STEP file and imported it to OpenCascade ImportExport Window, but as the imported file is a step file it has lost all the assembly constraints and parametric relations. So can we constraint two components in Open Cascade?

Also is there any option like explode in catia/nx to separate two components of an assembly?

If explode option is available in Open Cascade can we re-assemble the components back by defining constraints?

Please help us with your comments on my question's...Thanks in advance.

Pawel's picture

Dear Sriramana,

what you might be looking for is the 'Extended Data Exchange (XDE)' functionality of OCCT. I suggest you browsed the corresponding PDF.

XDE gives you the possibility to import assemblies using STEP. I don't think constraints are supported, however not sure.

Hope this helps,

sriramana's picture


Thanks for the reply.
I am able to import the step file to OCCT but since it doesnt have amy constraints i am unable to assemble the components back. So i am looking for an option of Constraints in OCCT and its possibility.

Roman Lygin's picture

Short answer: there is no constraint solver in OCC. You will need 3rd party solver for that (and obviously integrate with it).