Hi, Hongjun Now the code is changed for bodies to hold multiple volumes, it should be able to contain a body attribute. I haven't gone through this part of code yet. But I can work on it if you need. Thanks for bringing up this topic. Jane --- On Fri, 10/15/10, [email protected] <[email protected]> wrote: From: [email protected] <[email protected]> Subject: Re: [cgma-dev] r4190 - in cgm/trunk: geom/OCC test To: [email protected] Cc: "Developer information for cgma" <[email protected]> Date: Friday, October 15, 2010, 11:59 AM Hello, Jane I am developing parallel meshing and I need to distribute OCC geometry to multiple processors. Since I am using Body as a unit of geometry distribution, I want to store distribution information as attributes to Body entities. So, I made several import/export functions from/to memory buffer in "OCCQueryTool". However, they are changed for "export_solid_model" function not to export parent Body entity of single Volume lump geometry and I lose the attribute information assigned to Body entity. So, can you change for single volume geometry to be exported with its parent Body attribute information? Otherwise, do I have to use Volume and Surface as a distribution unit and assign the distribution information to Volume entity? ----------------------------- Hong-Jun Kim Post-doc researcher 9700 S. Cass Ave. B240/R2147 Argonne, IL 60439 630-252-4791 [email protected] ----------------------------- ----- "jiangtao ma" <[email protected]> wrote:

Author: janehu Date: 2010-10-04 09:47:41 -0500 (Mon, 04 Oct 2010) New Revision: 4190

Modified:     cgm/trunk/geom/OCC/OCCBody.cpp     cgm/trunk/geom/OCC/OCCBody.hpp     cgm/trunk/geom/OCC/OCCCurve.cpp     cgm/trunk/geom/OCC/OCCCurve.hpp     cgm/trunk/geom/OCC/OCCDrawTool.cpp     cgm/trunk/geom/OCC/OCCLump.cpp     cgm/trunk/geom/OCC/OCCLump.hpp     cgm/trunk/geom/OCC/OCCModifyEngine.cpp     cgm/trunk/geom/OCC/OCCPoint.hpp     cgm/trunk/geom/OCC/OCCQueryEngine.cpp     cgm/trunk/geom/OCC/OCCQueryEngine.hpp     cgm/trunk/geom/OCC/OCCShell.cpp     cgm/trunk/geom/OCC/OCCShell.hpp     cgm/trunk/geom/OCC/OCCSurface.cpp     cgm/trunk/geom/OCC/OCCSurface.hpp     cgm/trunk/test/Makefile.am     cgm/trunk/test/makept.cpp     cgm/trunk/test/modify.cpp     cgm/trunk/test/r_w.cpp Log: Body now has compound structure: can hold multiple surfaces, shells and lumps. Single surface or shell or lump body will not have TopoDS_Coumpound pointer in Body, and boolean operation is working only on these kinds of bodies. The result of the boolean can be compound. So far, it passes all 12 tests under CGM/test, and it passed two more tests in mcnp2cad: cone and fill1. Other tests are under investigation now.

Modified: cgm/trunk/geom/OCC/OCCBody.cpp =================================================================== --- cgm/trunk/geom/OCC/OCCBody.cpp    2010-10-04 13:09:41 UTC (rev 4189) +++ cgm/trunk/geom/OCC/OCCBody.cpp    2010-10-04 14:47:41 UTC (rev 4190) @@ -43,6 +43,7 @@   #include "TopTools_ListIteratorOfListOfShape.hxx"   #include "gp_Ax1.hxx"   #include "gp_Ax2.hxx" +#include "gp_GTrsf.hxx"   #include "Bnd_Box.hxx"   #include "BRepBndLib.hxx"   #include "TopExp_Explorer.hxx" @@ -52,75 +53,133 @@   #include "BRepGProp.hxx"   #include "Standard_Boolean.hxx"   #include "LocOpe_SplitShape.hxx" +#include "TopoDS_Compound.hxx"

//-------------------------------------------------------------------------   // Purpose       : A constructor with a list of lumps that are attached.   //   // Special Notes :   //

//------------------------------------------------------------------------- -OCCBody::OCCBody(TopoDS_CompSolid *theShape, CubitBoolean isSheetBody, -                 OCCSurface* surface, OCCShell* shell) +OCCBody::OCCBody(TopoDS_Compound *theShape, +                 OCCSurface* surface, OCCShell* shell, Lump* lump)   {     myTopoDSShape = theShape; -  IsSheetBody = isSheetBody; -  mySheetSurface = surface; -  myShell = shell; +  if (surface != NULL) +    mySheetSurfaces.append(surface); +  if( shell != NULL) +    myShells.append(shell); +  if (lump != NULL) +    myLumps.append(lump);     update_bounding_box(); +  if (myTopoDSShape && !myTopoDSShape->IsNull()) +    assert(myTopoDSShape->ShapeType() == TopAbs_COMPOUND);   }   -void OCCBody::set_sheet_surface(OCCSurface* surface) +TopoDS_Compound* OCCBody::get_TopoDS_Shape()   { -  IsSheetBody = CUBIT_TRUE; -  mySheetSurface = surface; -  if(surface == NULL) -    IsSheetBody = CUBIT_FALSE; +  if (myTopoDSShape && !myTopoDSShape->IsNull())