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This method allows you to check if a cone expands in the direction of its axis. This happens when IGeom3DCone::CosineAng is more than 0 and IGeom3DCone::SineAng is more than 0.
Status = IsExpanding ( );
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Return: (Boolean) Status |
TRUE if cone expands. |
This is only really significant if IGeom3DCone::IsCylinder returns FALSE otherwise it is irrelevant.
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