Typedefs
typedef std::function< void(Eigen::MatrixXd &IV, Eigen::MatrixXd &OV, std::vector< std::vector< int > > &OF)>	SplitFunction

Functions
void	polar_split (const Eigen::MatrixXd &IV, Eigen::MatrixXd &OV, std::vector< std::vector< int > > &OF, double t=0.5)
	Split a polygon using polar refinement.

SplitFunction	polar_split_func (double t)
	Helper function.

void	catmul_clark_split (const Eigen::MatrixXd &IV, Eigen::MatrixXd &OV, std::vector< std::vector< int > > &OF)
	Split a polygon using polar refinement.

SplitFunction	catmul_clark_split_func ()

void	no_split (const Eigen::MatrixXd &IV, Eigen::MatrixXd &OV, std::vector< std::vector< int > > &OF)
	Don't split polygons.

SplitFunction	no_split_func ()

Typedef Documentation

◆ SplitFunction

typedef std::function<void(Eigen::MatrixXd &IV, Eigen::MatrixXd &OV, std::vector<std::vector<int>> &OF)> polyfem::mesh::Polygons::SplitFunction

Definition at line 69 of file Refinement.hpp.

Function Documentation

◆ catmul_clark_split()

void polyfem::mesh::Polygons::catmul_clark_split	(	const Eigen::MatrixXd &	IV,
		Eigen::MatrixXd &	OV,
		std::vector< std::vector< int > > &	OF
	)

Split a polygon using polar refinement.

A single vertex is inserted at the barycenter of the polygon kernel (the polygon needs to be star-shaped). Contrary to the polar_split function, this function creates quads instead of triangles. The edges of the original polygon are also assumed to be split already, so the input polygon must have an even number of vertices. Radial edges will be inserted every 2 vertices, starting from vertex #1.

Parameters

[in]	IV	#IV x (2\|3) of vertex positions around the polygon
	OV	#OF v (2\|3) output vertex positions
	OF	list of output polygonal face indices

Definition at line 583 of file Refinement.cpp.

References polyfem::mesh::is_star_shaped().

Referenced by catmul_clark_split_func().

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◆ catmul_clark_split_func()

SplitFunction polyfem::mesh::Polygons::catmul_clark_split_func ( )

inline

Definition at line 106 of file Refinement.hpp.

References catmul_clark_split().

Referenced by polyfem::mesh::CMesh2D::refine().

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◆ no_split()

void polyfem::mesh::Polygons::no_split	(	const Eigen::MatrixXd &	IV,
		Eigen::MatrixXd &	OV,
		std::vector< std::vector< int > > &	OF
	)

Don't split polygons.

Definition at line 609 of file Refinement.cpp.

Referenced by no_split_func().

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◆ no_split_func()

SplitFunction polyfem::mesh::Polygons::no_split_func ( )

inline

Definition at line 113 of file Refinement.hpp.

References no_split().

Referenced by polyfem::mesh::refine_polygonal_mesh().

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◆ polar_split()

void polyfem::mesh::Polygons::polar_split	(	const Eigen::MatrixXd &	IV,
		Eigen::MatrixXd &	OV,
		std::vector< std::vector< int > > &	OF,
		double	t = `0.5`
	)

Split a polygon using polar refinement.

The input polygon must be star-shaped. A one-ring of quads are create on the outer ring of the polygon, while at the center a new polygonal facet is created around the barycenter of the kernel polygon. If the interpolation parameter t is equal to 0, the central polygon is collapsed into a single vertex, and facets on the ring become triangles.

Parameters

[in]	IV	#IV x (2\|3) of vertex positions around the polygon
[out]	OV	#OF v (2\|3) output vertex positions
[out]	OF	list of output polygonal face indices
[in]	t	Interpolation parameter to place the new vertices on the edge from the barycenter to the outer polygon vertices (0 being at the center, 1 being at the boundary).t should be >= 0.0 and < 1.0 }