CGAL::Isosurfacing::Octree_wrapper< GeomTraits > Class Template Reference

#include <CGAL/Octree_wrapper.h>

Definition

Examples:

Isosurfacing_3/dual_contouring_octree.cpp.

Public Types
typedef GeomTraits	Kernel
typedef GeomTraits::FT	FT
typedef GeomTraits::Point_3	Point_3
typedef GeomTraits::Vector_3	Vector_3
typedef CGAL::Octree< Kernel, std::vector< Point_3 > >	Octree
typedef std::size_t	Vertex_handle
typedef std::tuple< std::size_t, std::size_t >	Edge_handle
typedef std::size_t	Voxel_handle
typedef Octree::Node	Node
typedef Node::Global_coordinates	Uniform_coords

Public Member Functions
	Octree_wrapper (const CGAL::Bbox_3 &bbox)
template<class Split_predicate >
void	refine (const Split_predicate &split_predicate)
std::size_t	dim () const
FT	hx () const
FT	offset_x () const
FT	offset_y () const
FT	offset_z () const
std::size_t	max_depth () const
const std::vector< Edge_handle > &	leaf_edges () const
const std::vector< Vertex_handle > &	leaf_vertices () const
const std::vector< Voxel_handle > &	leaf_voxels () const
FT	value (const Vertex_handle &v) const
FT &	value (const Vertex_handle &v)
Vector_3	gradient (const Vertex_handle &v) const
Vector_3 &	gradient (const Vertex_handle &v)
std::size_t	depth_factor (const std::size_t &depth) const
Uniform_coords	uniform_coordinates (const Node &node) const
std::array< Point_3, 8 >	node_points (const Node &node) const
Point_3	point (const Uniform_coords &vertex_coordinates) const
Point_3	point (const Vertex_handle &v) const
Uniform_coords	vertex_uniform_coordinates (const Node &node, const typename Node::Local_coordinates local_coords) const
Node	get_node (const std::size_t &i, const std::size_t &j, const std::size_t &k) const
Node	get_node (const std::size_t lex_index) const
std::size_t	lex_index (const std::size_t &i, const std::size_t &j, const std::size_t &k, const std::size_t &depth) const
std::size_t	i_index (const std::size_t &lex_index, const std::size_t &depth) const
std::size_t	j_index (const std::size_t &lex_index, const std::size_t &depth) const
std::size_t	k_index (const std::size_t &lex_index, const std::size_t &depth) const
std::tuple< std::size_t, std::size_t, std::size_t >	ijk_index (const std::size_t &lex_index, const std::size_t &depth) const
std::size_t	e_glIndex (const std::size_t &e, const std::size_t &i_idx, const std::size_t &j_idx, const std::size_t &k_idx, const std::size_t &depth) const
	compute unique edge global index. More...
std::array< FT, 8 >	voxel_values (const Voxel_handle &vox) const
FT	vertex_value (const Vertex_handle &v) const
std::array< Edge_handle, 12 >	voxel_edges (const Voxel_handle &vox) const
std::array< Vertex_handle, 8 >	voxel_vertices (const Voxel_handle &vox) const
std::array< Vector_3, 8 >	voxel_gradients (const Voxel_handle &vox) const
std::array< Point_3, 8 >	voxel_vertex_positions (const Voxel_handle &vox) const
std::array< FT, 2 >	edge_values (const Edge_handle &e_id) const
	Get the values at the incident two vertices. More...
std::array< Vertex_handle, 2 >	edge_vertices (const Edge_handle &e_id) const
std::array< std::size_t, 4 >	edge_voxels (const Edge_handle &e_id) const
	Get the 4 voxels incident to an edge. More...

Member Function Documentation

e_glIndex()

template<typename GeomTraits >

std::size_t CGAL::Isosurfacing::Octree_wrapper< GeomTraits >::e_glIndex	(	const std::size_t &	e,
		const std::size_t &	i_idx,
		const std::size_t &	j_idx,
		const std::size_t &	k_idx,
		const std::size_t &	depth
	)		const

compute unique edge global index.

Parameters

e	local edge index
i_idx	i-index of cell
j_idx	j-index of cell
k_idx	k-index of cell
depth	depth of cell

Returns

edge_values()

template<typename GeomTraits >

std::array<FT, 2> CGAL::Isosurfacing::Octree_wrapper< GeomTraits >::edge_values

(

const Edge_handle &

e_id

)

const

Get the values at the incident two vertices.

Vertices are sorted in ascending order.

Parameters

e_id

Returns

edge_voxels()

template<typename GeomTraits >

std::array<std::size_t, 4> CGAL::Isosurfacing::Octree_wrapper< GeomTraits >::edge_voxels

(

const Edge_handle &

e_id

)

const

Get the 4 voxels incident to an edge.

If an edge has only three incident voxels, one will appear twice. The voxels are given with the uniform lexicographical index.

Parameters

e_id

Returns