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API > API/Runtime > API/Runtime/GeometryCore > API/Runtime/GeometryCore/TPlane3
Description
The "positive side" of the plane is the half space to which the plane normal points. The "negative side" is the other half space. The function returns +1 when P is on the positive side, -1 when P is on the the negative side, or 0 when P is on the plane.
| Name | WhichSide |
| Type | function |
| Header File | /Engine/Source/Runtime/GeometryCore/Public/PlaneTypes.h |
| Include Path | #include "PlaneTypes.h" |
int WhichSide
(
const UE::Math::TVector < RealType > & P
) const