C++
virtual Adesk::Boolean isPlanar() const;
Description
This function returns Adesk::kTrue if and only if there is a plane that contains the entity. Otherwise Adesk::kFalse is returned.
Note
Where appropriate, AutoCAD built-in entity types check for planarity within a tolerance value (for example, for AcDb3dPolyline, the tolerance is 1e-10).
Returns Adesk::kFalse in the default implementation.