mesh_geometry.h File Reference

Functions for accessing the geometry in a mesh. More...

#include <geogram/basic/common.h>
#include <geogram/mesh/mesh.h>
#include <geogram/basic/geometry.h>
#include <geogram/basic/geometry_nd.h>

Go to the source code of this file.

Namespaces
namespace	GEO
	Global Vorpaline namespace.
namespace	GEO::Geom
	Geometric functions and utilities.

Functions
const vec3 &	GEO::Geom::mesh_vertex (const Mesh &M, index_t v)
	Gets a mesh vertex by its index.
const vec3 &	GEO::Geom::mesh_vertex_ref (const Mesh &M, index_t v)
	Gets a mesh vertex by its index.
vec3 &	GEO::Geom::mesh_vertex_ref (Mesh &M, index_t v)
	Gets a mesh vertex by its index.
const vec3 &	GEO::Geom::mesh_corner_vertex (const Mesh &M, index_t c)
	Gets a mesh vertex by an incident corner index.
vec3 &	GEO::Geom::mesh_corner_vertex_ref (Mesh &M, index_t c)
	Gets a mesh vertex by an incident corner index.
const vec3 &	GEO::Geom::mesh_vertex_normal (const Mesh &M, index_t v)
	Gets a mesh vertex normal by vertex index.
vec3 &	GEO::Geom::mesh_vertex_normal_ref (Mesh &M, index_t v)
	Gets a mesh vertex normal by vertex index.
const vec3 &	GEO::Geom::mesh_vertex_normal_ref (const Mesh &M, index_t v)
	Gets a mesh vertex normal by vertex index.
double	GEO::Geom::mesh_facet_area (const Mesh &M, index_t f, index_t dim=0)
	Computes the area of a facet.
vec3	GEO::Geom::mesh_facet_normal (const Mesh &M, index_t f)
	Computes the normal to a mesh facet.
vec3	GEO::Geom::mesh_facet_center (const Mesh &M, index_t f)
	Gets the centroid of the vertices of a facet in a mesh.
vec3	GEO::Geom::mesh_cell_center (const Mesh &M, index_t c)
	Gets the centroid of the vertices of a cell in a mesh.
vec3	GEO::Geom::mesh_tet_center (const Mesh &M, index_t t)
	Gets the centroid of a tetrahedron in a mesh.
vec3	GEO::Geom::mesh_corner_vector (const Mesh &M, index_t c1)
	Gets a vector by a mesh corner.
double	GEO::Geom::mesh_normal_angle (const Mesh &M, index_t c)
	Computes the angle between the normal vectors of two mesh facets sharing an edge.
double	GEO::Geom::mesh_unsigned_normal_angle (const Mesh &M, index_t f1, index_t f2)
	Computes the angle between the normal vectors of two mesh facets sharing an edge.
double	GEO::Geom::mesh_area (const Mesh &M, index_t dim)
	Computes the total surface area of a mesh in arbitrary dimension.
double	GEO::Geom::mesh_area (const Mesh &M)
	Computes the total surface area of a mesh.
double	GEO::Geom::mesh_enclosed_volume (const Mesh &M)
	Computes the volume enclosed by a surfacic mesh.
void	GEO::compute_normals (Mesh &M)
	Computes the normals to the vertices, and stores them as additional coordinates.
void	GEO::simple_Laplacian_smooth (Mesh &M, index_t nb_iter, bool normals_only)
	Smoothes a mesh.
void	GEO::get_bbox (const Mesh &M, double *xyzmin, double *xyzmax)
	Gets the bounding box of a mesh.
double	GEO::bbox_diagonal (const Mesh &M)
	Computes the length of the bounding box diagonal of a mesh.
void	GEO::set_anisotropy (Mesh &M, double s)
	Normalizes and scales the stored vertex normals by a factor.
void	GEO::unset_anisotropy (Mesh &M)
	Normalizes the stored vertex normals.
void	GEO::compute_sizing_field (Mesh &M, double gradation=1.0, index_t nb_lfs_samples=0)
	Computes a sizing field using an estimate of lfs (local feature size).
void	GEO::normalize_embedding_area (Mesh &M)
	Computes vertices weights in such a way that triangle areas are normalized.
double	GEO::mesh_cell_volume (const Mesh &M, index_t c)
	Computes the volume of a cell in a mesh.
double	GEO::mesh_cells_volume (const Mesh &M)
	Computes the volume of the cells of a mesh.
vec3	GEO::mesh_cell_facet_normal (const Mesh &M, index_t c, index_t lf)
	Computes the normal of a cell facet.
double	GEO::surface_average_edge_length (const Mesh &M)
	Computes the average edge length in a surface.

Detailed Description

Functions for accessing the geometry in a mesh.

Definition in file mesh_geometry.h.