Problem with BRepTools::Read - Forum Open Cascade Technology

Joachim Greiner
Thu, 07/18/2013 - 20:55

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Other usage issues

Hi,

I have a problem with BRepTools::Read using an istream:
The following line works perfect. So far so good.

TopoDS_Shape ashape;
BRep_Builder B1;
Standard_Boolean result = BRepTools::Read(ashape,"D:/test/edge.brep",B1);

I copied the follwing lines from the code of BRepTools::Read

BRep_Builder B;
filebuf fb;
istream in(&fb);
fb.open("D:/test/edge.brep", ios::in)

BRepTools_ShapeSet SS(B);
SS.SetProgress(NULL);
SS.Read(in);

Ang here the function crashes at SS.Read. I even cant examine wich kind of exception is thrown. I tried it with several brep files, always the same result.
I can´t understand the reason, because both cases use the same functions.

Any help would be apreciated

Regards,
Joachim

Göran Barz
Fri, 07/19/2013 - 11:56

Did you compile your Project with the same compiler the Open Cascade Library has been built with?
Passing an istream to a library which has been built with another compiler-version of the c++-library can cause a problem.

Joachim Greiner
Fri, 07/19/2013 - 12:58

Thanks for that hint. You might be right! My Project is compiled with VS11 but the OCC library is still a VS9 compilation. I will check that!

Joachim Greiner
Mon, 07/22/2013 - 13:49

using the same Compiler finaly solved the problem! Thanks!