lagrange::filtering::smoothing_utils Namespace Reference

Common utility functions for mesh and attribute smoothing. More...

Functions
template<typename Scalar , typename Index >
void	get_triangles (const SurfaceMesh< Scalar, Index > &t_mesh, std::vector< SimplexIndex< K, int > > &triangles)
	Extract triangles from a mesh. More...
template<typename Scalar , typename Index >
void	get_vertices_and_normals (const SurfaceMesh< Scalar, Index > &t_mesh, std::vector< Vector< Real, Dim > > &vertices, std::vector< Vector< Real, Dim > > &normals, AttributeId normal_id)
	Extract vertices and normals from a mesh. More...
template<typename Scalar , typename Index >
void	set_vertices (SurfaceMesh< Scalar, Index > &mesh, const std::vector< Vector< Real, Dim > > &vertices)
	Set vertices in a mesh. More...
template<typename Scalar , typename Index >
std::unique_ptr< FEM::RiemannianMesh< Real > >	setup_for_smoothing (SurfaceMesh< Scalar, Index > &mesh, SurfaceMesh< Scalar, Index > &_mesh, std::vector< SimplexIndex< K, int > > &triangles, std::vector< Vector< Real, Dim > > &vertices, std::vector< Vector< Real, Dim > > &normals, Solver &solver, Real &original_area)
	Setup a mesh for smoothing operations. More...
void	adjust_metric_for_curvature (FEM::RiemannianMesh< Real > &r_mesh, const std::vector< Vector< Real, Dim > > &vertices, const std::vector< Vector< Real, Dim > > &normals, Real original_area, double curvature_weight, double normal_smoothing_weight, Solver &solver)
	Adjust the metric based on curvature. More...

Detailed Description

Common utility functions for mesh and attribute smoothing.

Function Documentation

get_triangles()

void get_triangles	(	const SurfaceMesh< Scalar, Index > &	t_mesh,
		std::vector< SimplexIndex< K, int > > &	triangles
	)

Extract triangles from a mesh.

Template Parameters

Scalar	The scalar type used for mesh coordinates
Index	The index type used for mesh connectivity

Parameters

t_mesh	The input mesh
triangles	Output vector of triangles

get_vertices_and_normals()

void get_vertices_and_normals	(	const SurfaceMesh< Scalar, Index > &	t_mesh,
		std::vector< Vector< Real, Dim > > &	vertices,
		std::vector< Vector< Real, Dim > > &	normals,
		AttributeId	normal_id
	)

Extract vertices and normals from a mesh.

Template Parameters

Scalar	The scalar type used for mesh coordinates
Index	The index type used for mesh connectivity

Parameters

t_mesh	The input mesh
vertices	Output vector of vertices
normals	Output vector of normals
normal_id	The attribute ID for normals

set_vertices()

void set_vertices	(	SurfaceMesh< Scalar, Index > &	mesh,
		const std::vector< Vector< Real, Dim > > &	vertices
	)

Set vertices in a mesh.

Template Parameters

Scalar	The scalar type used for mesh coordinates
Index	The index type used for mesh connectivity

Parameters

mesh	The mesh to update
vertices	The new vertex positions

setup_for_smoothing()

std::unique_ptr< FEM::RiemannianMesh< Real > > setup_for_smoothing	(	SurfaceMesh< Scalar, Index > &	mesh,
		SurfaceMesh< Scalar, Index > &	_mesh,
		std::vector< SimplexIndex< K, int > > &	triangles,
		std::vector< Vector< Real, Dim > > &	vertices,
		std::vector< Vector< Real, Dim > > &	normals,
		Solver &	solver,
		Real &	original_area
	)

Setup a mesh for smoothing operations.

This function performs common setup operations for both mesh and attribute smoothing:

1. Triangulates polygonal facets
2. Ensures normals are available and properly formatted
3. Extracts triangles, vertices, and normals
4. Creates and sets up the Riemannian mesh

Template Parameters

Scalar	The scalar type used for mesh coordinates
Index	The index type used for mesh connectivity

Parameters

mesh	The input mesh
_mesh	Output triangulated mesh
triangles	Output vector of triangles
vertices	Output vector of vertices
normals	Output vector of normals
solver	The solver to use
original_area	Output original mesh area

Returns

The Riemannian mesh

adjust_metric_for_curvature()

void adjust_metric_for_curvature	(	FEM::RiemannianMesh< Real > &	r_mesh,
		const std::vector< Vector< Real, Dim > > &	vertices,
		const std::vector< Vector< Real, Dim > > &	normals,
		Real	original_area,
		double	curvature_weight,
		double	normal_smoothing_weight,
		Solver &	solver
	)

Adjust the metric based on curvature.

Parameters

r_mesh	The Riemannian mesh
vertices	The mesh vertices
normals	The mesh normals
original_area	The original mesh area
curvature_weight	The curvature weight
normal_smoothing_weight	The normal smoothing weight
solver	The solver to use