Volumes are 3-dimensional objects. More...

#include <grid_base_objects.h>

Inheritance diagram for ug::Volume:

Public Types
typedef Volume	grid_base_object

typedef void	higher_dim_base_object

typedef Face	lower_dim_base_object

typedef Face	side

typedef Volume	sideof

Public Types inherited from ug::IVertexGroup
typedef Vertex const	ConstVertexArray

Public Member Functions
virtual int	base_object_id () const

virtual bool	collapse_edge (std::vector< Volume * > &vNewVolumesOut, int edgeIndex, Vertex newVertex, std::vector< Vertex > *pvSubstituteVertices=NULL)

virtual int	container_section () const

virtual Edge *	create_edge (int index)
	create the edge with index i and return it. More...

virtual Face *	create_face (int index)
	create the face with index i and return it. More...

virtual EdgeDescriptor	edge_desc (int index) const

virtual void	edge_desc (int index, EdgeDescriptor &edOut) const

virtual FaceDescriptor	face_desc (int index) const

virtual void	face_desc (int index, FaceDescriptor &fdOut) const

virtual int	get_edge_index_from_vertices (const size_t vi0, const size_t vi1) const
	returns the local index of the edge which connects the two vertex indices. More...

virtual int	get_face_edge_index (const size_t faceInd, const size_t faceEdgeInd) const
	returns the local index of the j-th edge of the i-th face of the volume More...

virtual void	get_flipped_orientation (VolumeDescriptor &vdOut) const

int	get_local_side_index (FaceVertices *f) const
	returns the local index of the given face or -1, if the face is not part of the volume. More...

virtual std::pair< GridBaseObjectId, int >	get_opposing_object (Vertex *vrt) const
	returns an index to the obbject, which lies on the opposite side of the volume to the given vertex. More...

virtual bool	get_opposing_side (FaceVertices *f, FaceDescriptor &fdOut) const
	retrieves the face-descriptor for the opposing side to the specified one. More...

virtual void	get_vertex_indices_of_edge (size_t &ind1Out, size_t &ind2Out, size_t edgeInd) const
	returns the local indices of an edge of the volume. More...

virtual void	get_vertex_indices_of_face (std::vector< size_t > &indsOut, size_t side) const
	returns the local indices of a face of the volume. More...

virtual bool	is_regular_ref_rule (int edgeMarks) const
	returns true if the specified edgeMarks would lead to a regular refinement More...

virtual uint	num_edges () const

virtual uint	num_faces () const

uint	num_sides () const

virtual ReferenceObjectID	reference_object_id () const

virtual bool	refine (std::vector< Volume * > &vNewVolumesOut, Vertex ppNewVertexOut, Vertex newEdgeVertices, Vertex *newFaceVertices, Vertex newVolumeVertex, const Vertex &prototypeVertex, Vertex *pSubstituteVertices=NULL, vector3 corners=NULL, bool *isSnapPoint=NULL)

virtual	~Volume ()

Public Member Functions inherited from ug::GridObject
virtual GridObject *	create_empty_instance () const
	create an instance of the derived type More...

uint	grid_data_index () const
	Returns the grid attachment data index of a geometric object. More...

virtual bool	is_constrained () const
	returns true if the object is constrained by other objects. More...

virtual bool	is_constraining () const
	returns the id of the reference-object. More...

virtual	~GridObject ()

virtual void	remove_constraint_link (const Vertex *vrt)
	removes a constraint link to the grid object. More...

virtual void	remove_constraint_link (const Edge *e)
	removes a constraint link to the grid object. More...

virtual void	remove_constraint_link (const Face *f)
	removes a constraint link to the grid object. More...

Public Member Functions inherited from ug::VolumeVertices
virtual size_t	num_vertices () const

Vertex *	operator[] (size_t index) const
	returns the i-th vertex. More...

size_t	size () const
	returns the number of vertices. More...

virtual Vertex *	vertex (size_t index) const

virtual ConstVertexArray	vertices () const

virtual	~VolumeVertices ()

Public Member Functions inherited from ug::IVertexGroup
Vertex *	operator[] (size_t index) const
	returns the i-th vertex. More...

size_t	size () const
	returns the number of vertices. More...

virtual	~IVertexGroup ()

Static Public Member Functions
static bool	type_match (GridObject *pObj)

Static Public Attributes
static const int	BASE_OBJECT_ID = VOLUME

static const bool	CAN_BE_SIDE = false

static const int	dim = 3
	reference dimension More...

static const bool	HAS_SIDES = true

Protected Member Functions
virtual void	set_vertex (uint index, Vertex *pVrt)

Protected Member Functions inherited from ug::GridObject
void	set_grid_data_index (uint index)
	ATTENTION: Use this method with extreme care! More...

Friends
class	Grid

Additional Inherited Members
Protected Attributes inherited from ug::GridObject
uint	m_gridDataIndex

Detailed Description

Volumes are 3-dimensional objects.

Base class for all 3-dimensional objects. Volumes connect four or more vertices.

default implementations of all methods are featured to allow empty instances of this class. This is required to allow the use of this class for compile-time method selection by dummy-parameters. It is cruical that derived classes overload those methods.

Member Typedef Documentation

◆ grid_base_object

typedef Volume ug::Volume::grid_base_object

◆ higher_dim_base_object

typedef void ug::Volume::higher_dim_base_object

◆ lower_dim_base_object

typedef Face ug::Volume::lower_dim_base_object

◆ side

typedef Face ug::Volume::side

◆ sideof

typedef Volume ug::Volume::sideof

Constructor & Destructor Documentation

◆ ~Volume()

virtual ug::Volume::~Volume ( )

inlinevirtual

Member Function Documentation

◆ base_object_id()

virtual int ug::Volume::base_object_id ( ) const

inlinevirtual

Implements ug::GridObject.

References ug::VOLUME.

◆ collapse_edge()

virtual bool ug::Volume::collapse_edge	(	std::vector< Volume * > &	vNewVolumesOut,
		int	edgeIndex,
		Vertex *	newVertex,
		std::vector< Vertex * > *	pvSubstituteVertices = `NULL`
	)

inlinevirtual

The collapse_edge method creates new geometric objects by collapsing the specified edge. The user that calls this function is responsible to either register the new volumes with a grid (the grid from which the vertices are), or to take responsibility for deletion of the acquired memory (delete each element in vNewFacesOut).

edgeIndex specifies the edge which shall be collapsed. edgeIndex has to lie between 0 and this->num_edges().
Vertices adjacent to the collapsed edge will be replaced by newVertex.
If you specify pvSubstituteVertices, the created volumes will reference the vertices in pvSubstituteVertices. Note that pvSubstituteVertices has to contain exactly as many vertices as the volume in which you collapse the edge. Vertices with the same index correlate.

Reimplemented in ug::Octahedron, ug::Pyramid, ug::Prism, ug::Hexahedron, and ug::Tetrahedron.

Referenced by ug::CollapseEdge().

◆ container_section()

virtual int ug::Volume::container_section ( ) const

inlinevirtual

Implements ug::GridObject.

Reimplemented in ug::Octahedron, ug::Pyramid, ug::Prism, ug::Hexahedron, and ug::Tetrahedron.

Referenced by ug::Selector::add_to_list(), ug::MGSelector::add_to_list(), ug::Grid::erase(), ug::Selector::erase_from_list(), ug::MGSelector::erase_from_list(), ug::Grid::register_and_replace_element(), ug::Grid::register_volume(), ug::Grid::replace_vertex(), and ug::Grid::unregister_volume().

◆ create_edge()

virtual Edge* ug::Volume::create_edge ( int index )

inlinevirtual

create the edge with index i and return it.

Reimplemented in ug::Octahedron, ug::Pyramid, ug::Prism, ug::Hexahedron, and ug::Tetrahedron.

Referenced by ug::Grid::register_volume(), and ug::Grid::volume_autogenerate_edges().

◆ create_face()

virtual Face* ug::Volume::create_face ( int index )

inlinevirtual

create the face with index i and return it.

Reimplemented in ug::Octahedron, ug::Pyramid, ug::Prism, ug::Hexahedron, and ug::Tetrahedron.

Referenced by ug::Grid::register_volume(), and ug::Grid::volume_autogenerate_faces().

◆ edge_desc() [1/2]

virtual EdgeDescriptor ug::Volume::edge_desc ( int index ) const

inlinevirtual

Reimplemented in ug::Octahedron, ug::Pyramid, ug::Prism, ug::Hexahedron, and ug::Tetrahedron.

Referenced by ug::grid_unit_tests::CheckAssociatedEdgesOfVolumes(), ug::ComputeOrientationOffsetLagrange(), ug::ContainsPoint(), ug::Grid::edge_store_associated_volumes(), ug::Grid::flip_orientation(), ug::Grid::get_edge(), ug::GetEdgeIndex(), ug::GetMaxEdgeLength(), ug::Grid::register_edge(), ug::Grid::register_volume(), ug::Grid::replace_vertex(), ug::Grid::volume_autogenerate_edges(), ug::Grid::volume_sort_associated_edge_container(), and ug::VolumeContains().

◆ edge_desc() [2/2]

virtual void ug::Volume::edge_desc	(	int	index,
		EdgeDescriptor &	edOut
	)		const

inlinevirtual

Reimplemented in ug::Octahedron, ug::Pyramid, ug::Prism, ug::Hexahedron, and ug::Tetrahedron.

◆ face_desc() [1/2]

virtual FaceDescriptor ug::Volume::face_desc ( int index ) const

inlinevirtual

◆ face_desc() [2/2]

virtual void ug::Volume::face_desc	(	int	index,
		FaceDescriptor &	fdOut
	)		const

inlinevirtual

Reimplemented in ug::Octahedron, ug::Pyramid, ug::Prism, ug::Hexahedron, and ug::Tetrahedron.

◆ get_edge_index_from_vertices()

virtual int ug::Volume::get_edge_index_from_vertices	(	const size_t	vi0,
		const size_t	vi1
	)		const

inlinevirtual

returns the local index of the edge which connects the two vertex indices.

Default implementation throws a UGError

Reimplemented in ug::Octahedron, ug::Pyramid, ug::Prism, ug::Hexahedron, and ug::Tetrahedron.

References UG_THROW.

Referenced by ug::HangingNodeRefinerBase< TSelector >::assign_hnode_marks(), and ug::IRefiner::get_local_face_mark().

◆ get_face_edge_index()

virtual int ug::Volume::get_face_edge_index	(	const size_t	faceInd,
		const size_t	faceEdgeInd
	)		const

inlinevirtual

returns the local index of the j-th edge of the i-th face of the volume

Default implementation throws a UGError

Reimplemented in ug::Octahedron, ug::Pyramid, ug::Prism, ug::Hexahedron, and ug::Tetrahedron.

References UG_THROW.

◆ get_flipped_orientation()

void ug::Volume::get_flipped_orientation ( VolumeDescriptor & vdOut ) const

virtual

Writes vertices to the volume-descriptor so that it defines a volume with flipped orientation. If you want to flip the orientation of a volume in a grid, please consider using the grids flip_orientation method.

Please note: The default implementation returns the original volume and has to be reimplemented by derived classes.

Reimplemented in ug::Octahedron, ug::Pyramid, ug::Prism, ug::Hexahedron, and ug::Tetrahedron.

Referenced by ug::Grid::flip_orientation().

◆ get_local_side_index()

int ug::Volume::get_local_side_index ( FaceVertices * f ) const

returns the local index of the given face or -1, if the face is not part of the volume.

References ug::CompareVertices(), face_desc(), and num_sides().

◆ get_opposing_object()

virtual std::pair<GridBaseObjectId, int> ug::Volume::get_opposing_object ( Vertex * vrt ) const

inlinevirtual

returns an index to the obbject, which lies on the opposite side of the volume to the given vertex.

The method returs a pair <GridBaseObjectId, int>, where GridBaseObjectId is either VERTEX, EDGE, or FACE and where the second entry specifies the local index of the object in the given volume.

Reimplemented in ug::Octahedron, ug::Pyramid, ug::Prism, ug::Hexahedron, and ug::Tetrahedron.

References UG_THROW.

Referenced by ug::CalculateConstrainedSmoothVolumePosInTopLevel(), ug::CalculateSmoothVolumePosInTopLevel(), and ug::Grid::get_opposing_object().

◆ get_opposing_side()

virtual bool ug::Volume::get_opposing_side	(	FaceVertices *	f,
		FaceDescriptor &	fdOut
	)		const

inlinevirtual

retrieves the face-descriptor for the opposing side to the specified one.

If no opposing side exists false is returned. If an opposing side exists, the method returns true and fills the specified descriptor.

Reimplemented in ug::Prism, and ug::Hexahedron.

Referenced by ug::GetOpposingSide().

◆ get_vertex_indices_of_edge()

virtual void ug::Volume::get_vertex_indices_of_edge	(	size_t &	ind1Out,
		size_t &	ind2Out,
		size_t	edgeInd
	)		const

inlinevirtual

returns the local indices of an edge of the volume.

Default implementation throws a UGError

Reimplemented in ug::Octahedron, ug::Pyramid, ug::Prism, ug::Hexahedron, and ug::Tetrahedron.

References UG_THROW.

Referenced by ug::ExpandFractures3d().

◆ get_vertex_indices_of_face()

virtual void ug::Volume::get_vertex_indices_of_face	(	std::vector< size_t > &	indsOut,
		size_t	side
	)		const

inlinevirtual

returns the local indices of a face of the volume.

Default implementation throws a UGError

Reimplemented in ug::Octahedron, ug::Pyramid, ug::Prism, ug::Hexahedron, and ug::Tetrahedron.

References UG_THROW.

Referenced by ug::ExpandFractures3d().

◆ is_regular_ref_rule()

virtual bool ug::Volume::is_regular_ref_rule ( int edgeMarks ) const

inlinevirtual

returns true if the specified edgeMarks would lead to a regular refinement

A regular refinement leads to new elements which are all similar to the original element. I.e. which are of the same type and which have similar angles.

Note: this method does not perform refinement. Use 'refine' with the specified edges instead.

Parameters

edgeMarks If the i-th edge shall be refined, the expression 'edgeMarks & (1<<i) != 0' has to be true. You can specify multiple refine-edges using or-combinations: 'edgeMarks = (1<<i) | (1<<j)' would indicate that the i-th and the j-th edge shall be refined.

Reimplemented in ug::Octahedron, ug::Pyramid, ug::Prism, ug::Hexahedron, and ug::Tetrahedron.

◆ num_edges()

virtual uint ug::Volume::num_edges ( ) const

inlinevirtual

Reimplemented in ug::Octahedron, ug::Pyramid, ug::Prism, ug::Hexahedron, and ug::Tetrahedron.

Referenced by ug::CalculateAngles(), ug::CalculateMaxDihedral(), ug::CalculateMinDihedral(), ug::grid_unit_tests::CheckAssociatedEdgesOfVolumes(), ug::CollectEdges(), ug::CollectEdgesSorted(), ug::CreateEdgeSplitGeometry(), ug::Grid::edge_store_associated_volumes(), ug::ExpandFractures3d(), ug::Grid::flip_orientation(), ug::Grid::get_associated_sorted(), ug::GetEdgeIndex(), ug::GetMaxEdgeLength(), ug::GlobalFracturedMediaRefiner::perform_refinement(), ug::GlobalMultiGridRefiner::perform_refinement(), ug::LocalMarkAdjuster::ref_marks_changed(), ug::Refine(), ug::HangingNodeRefinerBase< TSelector >::refine_volume_with_normal_vertex(), ug::Grid::register_edge(), ug::Grid::register_volume(), ug::Grid::replace_vertex(), ug::Grid::unregister_volume(), ug::Grid::volume_autogenerate_edges(), ug::Grid::volume_sort_associated_edge_container(), ug::Grid::volume_store_associated_edges(), and ug::VolumeContains().

◆ num_faces()

virtual uint ug::Volume::num_faces ( ) const

inlinevirtual

◆ num_sides()

uint ug::Volume::num_sides ( ) const

inline

Referenced by ug::CalculateBoundaryVertexNormal3D(), ug::CalculateCreaseNormal(), ug::ExpandFractures3d(), and get_local_side_index().

◆ reference_object_id()

virtual ReferenceObjectID ug::Volume::reference_object_id ( ) const

inlinevirtual

A reference object represents a class of geometric objects. Tetrahedrons, Triangles etc are such classes. Reference ids should be defined in the file in which concrete geometric objects are defined.

Implements ug::GridObject.

Reimplemented in ug::Octahedron, ug::Pyramid, ug::Prism, ug::Hexahedron, and ug::Tetrahedron.

References ug::ROID_UNKNOWN.

Referenced by ug::CalculateAspectRatio(), ug::CalculateConstrainedSmoothVolumePosInTopLevel(), ug::CalculateNumElemsVertexAttachmentInTopLevel(), ug::CalculateSmoothVolumePosInTopLevel(), ug::CalculateVolToRMSFaceAreaRatio(), ug::CalculateVolume(), ug::ConvertToTetrahedra(), and ug::GlobalMultiGridRefiner::perform_refinement().

◆ refine()

virtual bool ug::Volume::refine	(	std::vector< Volume * > &	vNewVolumesOut,
		Vertex **	ppNewVertexOut,
		Vertex **	newEdgeVertices,
		Vertex **	newFaceVertices,
		Vertex *	newVolumeVertex,
		const Vertex &	prototypeVertex,
		Vertex **	pSubstituteVertices = `NULL`,
		vector3 *	corners = `NULL`,
		bool *	isSnapPoint = `NULL`
	)

inlinevirtual

The refine method can be used to create new elements by inserting new vertices on the volume.

New volumes will be returned in vNewFacesOut. If a new vertex has to be created from the prototypeVertex (this happens in more complicated situations) the pointer to the new vertex is returned in ppNewVertexOut. ppNewVertexOut contains NULL if no new vertex has been created.

The user that calls this function is responsible to either register the new volumes and the new vertex with a grid (the grid from which the referenced vertices are), or to take responsibility for deletion of the acquired memory (delete each element in vNewVolumesOut and ppNewVertexOut - if it is not NULL).

Specify vertices that shall be inserted on edges with vNewEdgeVertices. Vertices are inserted on the edge that corresponds to its index. Use NULL to indicate that no vertex shall be inserted on the associated edge.
Specify vertices that shall be inserted on faces with vNewFaceVertices. Vertices are inserted on the face that corresponds to its index. Use NULL to indicate that no vertex shall be inserted on the associated face.
If newVolumeVertex is not NULL, newVolumeVertex will be inserted in the center of the volume.
via the prototypeVertex you can specify the vertex-type of the vertex that is auto-inserted if the refine operation is too complex. In most cases this will be an instance of a standard vertex (a concrete type is required. Vertex will not do). The prototypeVertex has not to be registered at any grid - it may be a temporary instance.
If you specify pvSubstituteVertices, the created volumes will reference the vertices in pvSubstituteVertices. Note that pvSubstituteVertices has to contain exactly as many vertices as the refined Face. Vertices with the same index correlate.
You may optionally specify an array containing the corner positions of the element. If specified, those corners are used during regular tetrahedron refinement only (only if all edges are refined). They are used to choose the best refinement rule for interior child tetrahedrons, thus improving interior angles.
You may optionally specify 'isSnapPoint', a list of booleans of length 'num_vertices()'. Each quadrilateral side may contain at most one snap-point. New edges on quadrilateral faces will then connect the snap-point and the newly introduced edge-vertex. Note that a snap-point must not be a corner of a refined edge.

Reimplemented in ug::Octahedron, ug::Pyramid, ug::Prism, ug::Hexahedron, and ug::Tetrahedron.

Referenced by ug::AdaptiveRegularRefiner_MultiGrid::create_closure_elements_3d(), ug::CreateEdgeSplitGeometry(), ug::GlobalFracturedMediaRefiner::perform_refinement(), ug::GlobalMultiGridRefiner::perform_refinement(), ug::Refine(), and ug::HangingNodeRefinerBase< TSelector >::refine_volume_with_normal_vertex().

◆ set_vertex()

virtual void ug::Volume::set_vertex	(	uint	index,
		Vertex *	pVrt
	)

inlineprotectedvirtual

creates the volumes that result from the splitting of the edge with index 'splitEdgeIndex'. creates the volumes that result from the collapsing of the edge with index 'splitEdgeIndex'.

Reimplemented in ug::Octahedron, ug::Pyramid, ug::Prism, ug::Hexahedron, and ug::Tetrahedron.

References UG_ASSERT.

Referenced by ug::Grid::create_by_cloning(), ug::Grid::flip_orientation(), ug::Grid::register_and_replace_element(), and ug::Grid::replace_vertex().

◆ type_match()

static bool ug::Volume::type_match ( GridObject * pObj )

inlinestatic

Friends And Related Function Documentation

◆ Grid

friend class Grid

friend

Member Data Documentation

◆ BASE_OBJECT_ID

const int ug::Volume::BASE_OBJECT_ID = VOLUME

static

◆ CAN_BE_SIDE

const bool ug::Volume::CAN_BE_SIDE = false

static

◆ dim

const int ug::Volume::dim = 3

static

reference dimension

◆ HAS_SIDES

const bool ug::Volume::HAS_SIDES = true

static

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

ugbase/lib_grid/grid/grid_base_objects.h
ugbase/lib_grid/grid/grid_base_objects.cpp

Public Types

Public Member Functions

Static Public Member Functions

Static Public Attributes

Protected Member Functions

Friends

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ grid_base_object

◆ higher_dim_base_object

◆ lower_dim_base_object

◆ side

◆ sideof

Constructor & Destructor Documentation

◆ ~Volume()

Member Function Documentation

◆ base_object_id()

◆ collapse_edge()

◆ container_section()

◆ create_edge()

◆ create_face()

◆ edge_desc() [1/2]

◆ edge_desc() [2/2]

◆ face_desc() [1/2]

◆ face_desc() [2/2]

◆ get_edge_index_from_vertices()

◆ get_face_edge_index()

◆ get_flipped_orientation()

◆ get_local_side_index()

◆ get_opposing_object()

◆ get_opposing_side()

◆ get_vertex_indices_of_edge()

◆ get_vertex_indices_of_face()

◆ is_regular_ref_rule()

◆ num_edges()

◆ num_faces()

◆ num_sides()

◆ reference_object_id()

◆ refine()

◆ set_vertex()

◆ type_match()

Friends And Related Function Documentation

◆ Grid

Member Data Documentation

◆ BASE_OBJECT_ID

◆ CAN_BE_SIDE

◆ dim

◆ HAS_SIDES