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| Kernel::Vector_3 | fo.operator() ( Kernel::Plane_3 p) | |
| returns a vector that is orthogonal to the plane p and directed to the positive side of p. | ||
| Kernel::Vector_3 | fo.operator() ( Kernel::Point_3 p, Kernel::Point_3 q, Kernel::Point_3 r) | |
| returns a vector that is orthogonal to the plane defined by Kernel::ConstructPlane_3()(p, q, r) and directed to the positive side of this plane. | ||