Differential D11057 Diff 36450 source/blender/freestyle/intern/geometry/normal_cycle.h

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	* of a set of dihedral angles and associated vectors.			* of a set of dihedral angles and associated vectors.
	* Reference:			* Reference:
	* Restricted Delaunay Triangulation and Normal Cycle,			* Restricted Delaunay Triangulation and Normal Cycle,
	* D. Cohen-Steiner and J.M. Morvan,			* D. Cohen-Steiner and J.M. Morvan,
	* SOCG 2003			* SOCG 2003
	*/			*/
	class NormalCycle {			class NormalCycle {
	public:			public:
	NormalCycle();
	void begin();			void begin();
	void end();			void end();
	/**			/**
	* Note: the specified edge vector needs to be pre-clipped by the neighborhood.			* Note: the specified edge vector needs to be pre-clipped by the neighborhood.
	*/			*/
	void accumulate_dihedral_angle(const Vec3r &edge, real angle, real neigh_area = 1.0);			void accumulate_dihedral_angle(const Vec3r &edge, real angle, real neigh_area = 1.0);

	const Vec3r &eigen_vector(int i) const			const Vec3r &eigen_vector(int i) const
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