For all issues regarding the Forums use, please, refer to the Forum Rules.

Our Solutions

Need professional assistance?
Consider our:

Support Offerings


Need to speed up your development?
Have a look at our:

Samples & Tools


Need some functionality extending standard OCCT capabilities?
Check out our:

Adv. Components

Related pages

AIS_Trihedron bug ??

legoff's picture

I used AIS_Trihedron with OC3.1/Linux. I try to rebuild my apps under OC4.0/NT4/VC++6 without MFC (using FLTK) and each time there is :

Handle(AIS_Trihedron) aTrihedron;
Handle(Geom_Axis2Placement) anAxis=new Geom_Axis2Placement(gp::XOY());
aTrihedron=new AIS_Trihedron(anAxis);

it crash at the last line ...

So I have tried the MFC samples and the those which use the same (SampleAISBasic, SampleHLR) crash to ?? Moreover SampleHLR says that there is a unit pb before lauching an crashing when using the "HLR dialog" icon.

Does I have missed anything ?? Any explanation ???

Thanks for help.

legoff's picture

forget that ... all is OK

Barbara's picture

it seems the environment variable :


are not or not correctly defined .
They should be defined as :

CSF_UnitsLexicon "OpenCASCADEPath"/src/UnitsAPI/Lexi_Expr.dat
CSF_UnitsDefinition "OpenCASCADEPath"/src/UnitsAPI/Units.dat

Contact us

Attention: DO NOT use this form for all kind of request for the removal of your personal data. Please follow this link for such cases.