What's the meaning of the second parameter in GeomLProp_CLProps's constructor?

Hi all, the constructor of GeomLProp_CLProps's is Standard_EXPORT GeomLProp_CLProps(const Handle(Geom_Curve)& C, const Standard_Integer N, const Standard_Real Resolution);
but i don't know what the const Standard_Integer N represents?

Thank you.

Forum supervisor's picture

Dear sparrow sun,

It looks like a documentation bug.
Indeed the description of the parameter 'N' you can find at the file "LProp_CLProps.cdl". indicates the maximum number of derivations to
be done (0, 1, 2 or 3). For example, to compute only the tangent, N should be equal to 1.
I suggest you to register corresponding documentation bug in Mantis BugTracker which is available via the Collaborative portal - http://dev.opencascade.org/index.php?q=home/get_involved.

Best regards
FSR

sparrow's picture

Thank you!