[cgma-dev] CGMA with Cubit not reading ACIS files

[Iulian Grindeanu]

Hi David, 
The last time I tried cubit and occ in the same cgm configuration was 2 years ago; I am not sure anybody tried something related after that. CGM inner workings are still mysterious to me :( . When we build cgm "with cubit" we are using ACIS geometry engine from cubit libraries. What we build in cgm is just a small interface. With occ, the interface we build is bigger. 
Jane and Tim have probably better explanations. 
This is the message I got 2 years ago from Jason: (he meant to "build cgm", not cubit). GME and GQE are geometry modeling engine, respective geometry query engine. 

"It won't work to build cubit with both acis and occ support if the acis support is from linking against cubit. It is very unlikely that such a configuration would be stable. If the GME and GQE interfaces are stable it might work a little better to build only the OCC subdir in that case. 

Iulian Grindeanu < iulian at mcs.anl.gov > wrote: 

>Yes, good point. 
>Right now, I have a separate CGM build with occ, and one for cubit (actually, more, for cubit-12, parallel, serial, etc) 
>Does anybody regularly build with both? 
> 
>I have some strange errors when I build CGM with both, that do not appear when I build just with occ, or just with cubit. 
>... 
>./.libs/libiGeom.a(iGeom_CGMA.o): In function `igeom_load_': 
>iGeom_CGMA.cc:(.text+0x631): undefined reference to `CGMParallelComm::CGMParallelComm(int, int*)' 
>iGeom_CGMA.cc:(.text+0x67c): undefined reference to `CGMReadParallel::CGMReadParallel(GeometryQueryTool*, CGMParallelComm*)' 
>iGeom_CGMA.cc:(.text+0x6ae): undefined reference to `CGMReadParallel::load_file(char const*, char const*, char const*, int const*, int)' 

" 

----- Original Message -----


Hi Iulian (et al.), 

I wanted to thank you all for your help and follow up on one comment. You said 

> You cannot configure with cubit and occ at the same time. 

and I was curious: what causes the limitation? I understood from the CGM paper that models from multiple geometric kernels could be loaded at once in order to perform joint modeling; is it just the combination of cubit and OCC/OCE that cause trouble? 

Thanks, 
David 




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