The edges of a mesh. More...

#include <geogram/mesh/mesh.h>

Inheritance diagram for GEO::MeshEdges:

Public Member Functions
	MeshEdges (Mesh &mesh)

index_t	vertex (index_t e, index_t lv) const
	Gets the index of an edge vertex. More...

void	set_vertex (index_t e, index_t lv, index_t v)
	Sets a vertex of an edge. More...

index_t *	vertex_index_ptr (index_t c)
	Gets a pointer to a vertex index by corner index. More...

const index_t *	vertex_index_ptr (index_t c) const
	Gets a pointer to a vertex index by corner index. More...

index_t	create_edge ()
	Creates a new edge. More...

index_t	create_edges (index_t nb)
	Creates a batch of edges. More...

index_t	create_edge (index_t v1, index_t v2)
	Creates a new edge. More...

void	delete_elements (vector< index_t > &to_delete, bool remove_isolated_vertices=true) override
	Deletes a set of elements. More...

void	permute_elements (vector< index_t > &permutation) override
	Applies a permutation to the elements and their attributes. More...

void	clear (bool keep_attributes=true, bool keep_memory=false) override
	Removes all the elements and attributes. More...

void	pop () override
	Removes the last element.

Public Member Functions inherited from GEO::MeshSubElementsStore
	MeshSubElementsStore (Mesh &mesh)
	Constructs a new MeshSubElementStore. More...

virtual	~MeshSubElementsStore ()
	MeshElementStore destructor.

index_t	nb () const
	Gets the number of (sub-)elements. More...

AttributesManager &	attributes () const
	Gets the attributes manager. More...

index_as_iterator	begin () const
	Used by range-based for. More...

index_as_iterator	end () const
	Used by range-based for. More...

Protected Member Functions
void	clear_store (bool keep_attributes, bool keep_memory=false) override
	Removes all the elements and attributes. More...

void	resize_store (index_t new_size) override
	Resizes this MeshSubElementsStore. More...

index_t	create_sub_element ()

index_t	create_sub_elements (index_t nb_in)

void	copy (const MeshEdges &rhs, bool copy_attributes=true)

Protected Member Functions inherited from GEO::MeshSubElementsStore
void	reserve_store (index_t nb_to_reserve)
	Reserves space for new elements. More...

index_t	create_sub_elements (index_t nb)
	Creates a contiguous chunk of attributes for sub-elements. More...

index_t	create_sub_element ()
	Creates attributes for a sub-element. More...

void	adjust_store ()
	Makes the size of the store tightly match the number of the elements. More...

void	copy (const MeshSubElementsStore &rhs, bool copy_attributes=true)
	Copies a MeshSubElementsStore into this one. More...

Protected Attributes
vector< index_t >	edge_vertex_

Protected Attributes inherited from GEO::MeshSubElementsStore
Mesh &	mesh_

AttributesManager	attributes_

index_t	nb_

Friends
class	Mesh

class	GeogramIOHandler

Additional Inherited Members
Static Protected Member Functions inherited from GEO::MeshElements
static bool	has_non_zero (const GEO::vector< index_t > &I)
	Tests whether a vector contains a non-zero value. More...

Detailed Description

The edges of a mesh.

Definition at line 625 of file mesh.h.

Member Function Documentation

◆ clear()

void GEO::MeshEdges::clear	(	bool	keep_attributes = `true`,
		bool	keep_memory = `false`
	)

overridevirtual

Removes all the elements and attributes.

Parameters

[in]	keep_attributes	if true, then all the existing attribute names / bindings are kept (but they are cleared). If false, they are destroyed.
[in]	keep_memory	if true, then memory is kept and can be reused by subsequent mesh element creations.

Implements GEO::MeshElements.

◆ clear_store()

void GEO::MeshEdges::clear_store	(	bool	keep_attributes,
		bool	keep_memory = `false`
	)

overrideprotectedvirtual

Removes all the elements and attributes.

Parameters

[in]	keep_attributes	if true, then all the existing attribute names / bindings are kept (but they are cleared). If false, they are destroyed.
[in]	keep_memory	if true, then memory is kept and can be reused by subsequent mesh element creations.

Reimplemented from GEO::MeshSubElementsStore.

◆ create_edge() [1/2]

index_t GEO::MeshEdges::create_edge ( )

inline

Creates a new edge.

Returns: the index of the created edge

Definition at line 682 of file mesh.h.

◆ create_edge() [2/2]

index_t GEO::MeshEdges::create_edge	(	index_t	v1,
		index_t	v2
	)

inline

Creates a new edge.

Parameters

[in] v1,v2 global indices of the vertices of the edge

Returns: the index of the created edge

Definition at line 700 of file mesh.h.

◆ create_edges()

index_t GEO::MeshEdges::create_edges ( index_t nb )

inline

Creates a batch of edges.

Parameters

[in] nb number of edges to create

Returns: the index of the first created edge

Definition at line 691 of file mesh.h.

◆ delete_elements()

void GEO::MeshEdges::delete_elements	(	vector< index_t > &	to_delete,
		bool	remove_isolated_vertices = `true`
	)

overridevirtual

Deletes a set of elements.

Parameters

[in]	to_delete	a vector of size nb(). If to_delete[e] is different from 0, then element e will be destroyed, else it will be kept. On exit, to_delete is modified (it is used for internal bookkeeping).
[in]	remove_isolated_vertices	if true, then the vertices that are no longer incident to any element are deleted.

Implements GEO::MeshElements.

◆ permute_elements()

void GEO::MeshEdges::permute_elements ( vector< index_t > & permutation )

overridevirtual

Applies a permutation to the elements and their attributes.

On exit, permutation is modified (used for internal bookkeeping). Applying a permutation permutation is equivalent to:

for(i=0; i<permutation.size(); i++) {
   data2[i] = data[permutation[i]]
}
data = data2 ;

Implements GEO::MeshElements.

◆ resize_store()

void GEO::MeshEdges::resize_store ( index_t new_size )

overrideprotectedvirtual

Resizes this MeshSubElementsStore.

On exit, nb() == new_size, elements are created or destroyed if needed.

Parameters

[in] new_size the desired size

Reimplemented from GEO::MeshSubElementsStore.

◆ set_vertex()

void GEO::MeshEdges::set_vertex	(	index_t	e,
		index_t	lv,
		index_t	v
	)

inline

Sets a vertex of an edge.

Parameters

[in]	e	index of the edge
[in]	lv	local index of the vertex, in {0,1}
[in]	v	global index of the vertex

Definition at line 649 of file mesh.h.

◆ vertex()

index_t GEO::MeshEdges::vertex	(	index_t	e,
		index_t	lv
	)		const

inline

Gets the index of an edge vertex.

Parameters

[in]	e	index of the edge
[in]	lv	local index of the vertex, in {0,1}

Returns: the global index of vertex lv in edge e

Definition at line 637 of file mesh.h.

◆ vertex_index_ptr() [1/2]

index_t* GEO::MeshEdges::vertex_index_ptr ( index_t c )

inline

Gets a pointer to a vertex index by corner index.

Parameters

[in] c corner index (2 * edge index + 0 or 1)

Returns: a pointer to the index of the vertex.

Note: Normal uses do not call this function

Definition at line 662 of file mesh.h.

◆ vertex_index_ptr() [2/2]

const index_t* GEO::MeshEdges::vertex_index_ptr ( index_t c ) const

inline

Gets a pointer to a vertex index by corner index.

Parameters

[in] c corner index (2 * edge index + 0 or 1)

Returns: a pointer to the index of the vertex.

Note: Normal uses do not call this function

Definition at line 673 of file mesh.h.

The documentation for this class was generated from the following file:

geogram/mesh/mesh.h

Public Member Functions

Protected Member Functions

Protected Attributes

Friends

Additional Inherited Members

Detailed Description

Member Function Documentation

◆ clear()

◆ clear_store()

◆ create_edge() [1/2]

◆ create_edge() [2/2]

◆ create_edges()

◆ delete_elements()

◆ permute_elements()

◆ resize_store()

◆ set_vertex()

◆ vertex()

◆ vertex_index_ptr() [1/2]

◆ vertex_index_ptr() [2/2]