API Reference > OdIfc4x1 Namespace > Classes > IfcCurveOnSurface Class > IfcCurveOnSurface Methods > _d Method > IfcCurveOnSurface::_d Method (eIfcCurveOnSurface)
IfcCurveOnSurface::_d Method (eIfcCurveOnSurface)
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Syntax
C++
void _d(eIfcCurveOnSurface determinant);
Description

This is _d, a member of class IfcCurveOnSurface.

Group
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