MeshBasedTissueWithGhostNodes< DIM > Class Template Reference

#include <MeshBasedTissueWithGhostNodes.hpp>

Collaboration diagram for MeshBasedTissueWithGhostNodes< DIM >:

Public Member Functions
	MeshBasedTissueWithGhostNodes (MutableMesh< DIM, DIM > &rMesh, std::vector< TissueCell > &rCells, const std::vector< unsigned > locationIndices=std::vector< unsigned >(), bool deleteMesh=false)
	MeshBasedTissueWithGhostNodes (MutableMesh< DIM, DIM > &rMesh)
void	UpdateNodeLocations (const std::vector< c_vector< double, DIM > > &rNodeForces, double dt)
std::vector< bool > &	rGetGhostNodes ()
bool	IsGhostNode (unsigned index)
std::set< unsigned >	GetGhostNodeIndices ()
void	UpdateGhostPositions (double dt)
void	UpdateGhostNodesAfterReMesh (NodeMap &rMap)
c_vector< double, DIM >	CalculateForceBetweenNodes (const unsigned &rNodeAGlobalIndex, const unsigned &rNodeBGlobalIndex)
TissueCell *	AddCell (TissueCell &rNewCell, const c_vector< double, DIM > &rCellDivisionVector, TissueCell *pParentCell=NULL)
Private Member Functions
template<class Archive >
void	serialize (Archive &archive, const unsigned int version)
void	SetGhostNodes (const std::set< unsigned > &rGhostNodeIndices)
void	Validate ()
Private Attributes
std::vector< bool >	mIsGhostNode
Friends
class	TestMeshBasedTissueWithGhostNodes
class	boost::serialization::access

Detailed Description

template<unsigned DIM>
class MeshBasedTissueWithGhostNodes< DIM >

A facade class encapsulating a mesh-based 'tissue' with ghost nodes.

If simulating a crypt with a mesh-based tissue, the mesh should be surrounded by at least one layer of ghost nodes. These are nodes which do not correspond to a cell, but are necessary for remeshing (because the remesher tries to create a convex hull of the set of nodes) and visualization purposes. The MeshBasedTissueWithGhostNodes class deals with these ghost nodes, hiding the 'ghost nodes' concept from the TissueSimulation class, so the latter only ever deals with real cells.

Definition at line 49 of file MeshBasedTissueWithGhostNodes.hpp.

Constructor & Destructor Documentation

template<unsigned DIM>

MeshBasedTissueWithGhostNodes< DIM >::MeshBasedTissueWithGhostNodes	(	MutableMesh< DIM, DIM > &	rMesh,
		std::vector< TissueCell > &	rCells,
		const std::vector< unsigned >	locationIndices = `std::vector<unsigned>()`,
		bool	deleteMesh = `false`
	)			`[inline]`

Create a new tissue facade from a mesh and collection of cells.

Parameters:

	rMesh	a mutable tetrahedral mesh
	rCells	TissueCells corresponding to the nodes of the mesh
	locationIndices	an optional vector of location indices that correspond to real cells
	deleteMesh	set to true if you want the tissue to free the mesh memory on destruction

Definition at line 32 of file MeshBasedTissueWithGhostNodes.cpp.

References MeshBasedTissue< DIM >::GetNode(), MeshBasedTissue< DIM >::GetNumNodes(), MeshBasedTissueWithGhostNodes< DIM >::mIsGhostNode, MeshBasedTissueWithGhostNodes< DIM >::SetGhostNodes(), and MeshBasedTissueWithGhostNodes< DIM >::Validate().

template<unsigned DIM>

MeshBasedTissueWithGhostNodes< DIM >::MeshBasedTissueWithGhostNodes ( MutableMesh< DIM, DIM > & rMesh ) [inline]

Constructor for use by the de-serializer.

Parameters:

rMesh

a mutable tetrahedral mesh.

Definition at line 70 of file MeshBasedTissueWithGhostNodes.cpp.

Member Function Documentation

template<unsigned DIM>

TissueCell * MeshBasedTissueWithGhostNodes< DIM >::AddCell	(	TissueCell &	rNewCell,
		const c_vector< double, DIM > &	rCellDivisionVector,
		TissueCell *	pParentCell = `NULL`
	)			`[inline, virtual]`

Overridden AddCell() method.

Add a new cell to the tissue and update mIsGhostNode.

Parameters:

	rNewCell	the cell to add
	rCellDivisionVector	the position in space at which to put it
	pParentCell	pointer to a parent cell (if required)

Returns:: address of cell as it appears in the cell list (internal of this method uses a copy constructor along the way)

Reimplemented from MeshBasedTissue< DIM >.

Definition at line 189 of file MeshBasedTissueWithGhostNodes.cpp.

References MeshBasedTissue< DIM >::GetNumNodes(), AbstractTissue< DIM >::mCellLocationMap, and MeshBasedTissueWithGhostNodes< DIM >::mIsGhostNode.

template<unsigned DIM>

c_vector< double, DIM > MeshBasedTissueWithGhostNodes< DIM >::CalculateForceBetweenNodes	(	const unsigned &	rNodeAGlobalIndex,
		const unsigned &	rNodeBGlobalIndex
	)			`[inline]`

This method is used to calculate the force between GHOST nodes.

Parameters:

	rNodeAGlobalIndex
	rNodeBGlobalIndex

Returns:: The force exerted on Node A by Node B.

Definition at line 169 of file MeshBasedTissueWithGhostNodes.cpp.

References MeshBasedTissue< DIM >::GetNode(), TissueConfig::GetSpringStiffness(), AbstractMesh< ELEMENT_DIM, SPACE_DIM >::GetVectorFromAtoB(), TissueConfig::Instance(), and MeshBasedTissue< DIM >::mrMesh.

Referenced by MeshBasedTissueWithGhostNodes< DIM >::UpdateGhostPositions().

template<unsigned DIM>

std::set< unsigned > MeshBasedTissueWithGhostNodes< DIM >::GetGhostNodeIndices ( ) [inline]

Returns:: the indices of those nodes that are ghost nodes.

Definition at line 88 of file MeshBasedTissueWithGhostNodes.cpp.

References MeshBasedTissueWithGhostNodes< DIM >::mIsGhostNode.

template<unsigned DIM>

bool MeshBasedTissueWithGhostNodes< DIM >::IsGhostNode ( unsigned index ) [inline, virtual]

Overridden IsGhostNode() method.

Find if a given node is a ghost node. The abstract method always returns false but is overridden in subclasses.

Parameters:

index

the global index of a specified node

Returns:: whether the node is a ghost node

Reimplemented from AbstractCellCentreBasedTissue< DIM >.

Definition at line 82 of file MeshBasedTissueWithGhostNodes.cpp.

References MeshBasedTissueWithGhostNodes< DIM >::mIsGhostNode.

template<unsigned DIM>

std::vector< bool > & MeshBasedTissueWithGhostNodes< DIM >::rGetGhostNodes ( ) [inline]

Returns:: mIsGhostNode.

Definition at line 76 of file MeshBasedTissueWithGhostNodes.cpp.

References MeshBasedTissueWithGhostNodes< DIM >::mIsGhostNode.

template<unsigned DIM>

template<class Archive >

void MeshBasedTissueWithGhostNodes< DIM >::serialize	(	Archive &	archive,
		const unsigned int	version
	)			`[inline, private]`

Serialize the object and its member variables.

Note that serialization of the mesh and cells is handled by load/save_construct_data.

Note also that member data related to writers is not saved - output must be set up again by the caller after a restart.

Parameters:

	archive	the archive
	version	the current version of this class

Reimplemented from MeshBasedTissue< DIM >.

Definition at line 72 of file MeshBasedTissueWithGhostNodes.hpp.

template<unsigned DIM>

void MeshBasedTissueWithGhostNodes< DIM >::SetGhostNodes ( const std::set< unsigned > & rGhostNodeIndices ) [inline, private]

Set the ghost nodes by taking in a set of which nodes indices are ghost nodes.

Parameters:

rGhostNodeIndices

set of node indices corresponding to ghost nodes

Definition at line 102 of file MeshBasedTissueWithGhostNodes.cpp.

References MutableMesh< ELEMENT_DIM, SPACE_DIM >::GetNumNodes(), MeshBasedTissueWithGhostNodes< DIM >::mIsGhostNode, MeshBasedTissue< DIM >::mrMesh, and MeshBasedTissueWithGhostNodes< DIM >::Validate().

Referenced by MeshBasedTissueWithGhostNodes< DIM >::MeshBasedTissueWithGhostNodes().

template<unsigned DIM>

void MeshBasedTissueWithGhostNodes< DIM >::UpdateGhostNodesAfterReMesh ( NodeMap & rMap ) [inline, virtual]

Update mIsGhostNode if required by a remesh.

Parameters:

rMap

A map between node indices before and after remesh

Reimplemented from MeshBasedTissue< DIM >.

Definition at line 241 of file MeshBasedTissueWithGhostNodes.cpp.

References NodeMap::GetNewIndex(), MeshBasedTissue< DIM >::GetNumNodes(), NodeMap::IsDeleted(), MeshBasedTissueWithGhostNodes< DIM >::mIsGhostNode, and NodeMap::Size().

template<unsigned DIM>

void MeshBasedTissueWithGhostNodes< DIM >::UpdateGhostPositions ( double dt ) [inline]

Update the GhostNode positions using the spring force model with rest length=1. Forces are applied to ghost nodes from connected ghost and normal nodes.

Parameters:

dt

Definition at line 119 of file MeshBasedTissueWithGhostNodes.cpp.

References MeshBasedTissueWithGhostNodes< DIM >::CalculateForceBetweenNodes(), TetrahedralMesh< ELEMENT_DIM, SPACE_DIM >::EdgesBegin(), TetrahedralMesh< ELEMENT_DIM, SPACE_DIM >::EdgesEnd(), TissueConfig::GetDampingConstantNormal(), AbstractMesh< ELEMENT_DIM, SPACE_DIM >::GetNodeIteratorBegin(), AbstractMesh< ELEMENT_DIM, SPACE_DIM >::GetNodeIteratorEnd(), MeshBasedTissue< DIM >::GetNumNodes(), TissueConfig::Instance(), MeshBasedTissueWithGhostNodes< DIM >::mIsGhostNode, MeshBasedTissue< DIM >::mrMesh, and MutableMesh< ELEMENT_DIM, SPACE_DIM >::SetNode().

Referenced by MeshBasedTissueWithGhostNodes< DIM >::UpdateNodeLocations().

template<unsigned DIM>

void MeshBasedTissueWithGhostNodes< DIM >::UpdateNodeLocations	(	const std::vector< c_vector< double, DIM > > &	rNodeForces,
		double	dt
	)			`[inline, virtual]`

Overridden UpdateNodeLocation() method.

Update the location of each node in the tissue given a vector of forces on nodes and a time step over which to integrate the equations of motion.

Parameters:

	rNodeForces	forces on nodes
	dt	time step

Reimplemented from AbstractCellCentreBasedTissue< DIM >.

Definition at line 262 of file MeshBasedTissueWithGhostNodes.cpp.

References MeshBasedTissueWithGhostNodes< DIM >::UpdateGhostPositions().

template<unsigned DIM>

void MeshBasedTissueWithGhostNodes< DIM >::Validate ( ) [inline, private, virtual]

This is called after a tissue has been constructed to check the user gave consistent instructions. Check consistency of our internal data structures: Each node must have a cell associated with it OR must be a ghost node.

It is called after cells are added or removed from MeshBasedTissue as it is an overridden virtual method.

Reimplemented from MeshBasedTissue< DIM >.

Definition at line 208 of file MeshBasedTissueWithGhostNodes.cpp.

References AbstractTissue< DIM >::Begin(), AbstractTissue< DIM >::End(), MeshBasedTissue< DIM >::GetNumNodes(), AbstractTissue< DIM >::mCellLocationMap, and MeshBasedTissueWithGhostNodes< DIM >::mIsGhostNode.

Referenced by MeshBasedTissueWithGhostNodes< DIM >::MeshBasedTissueWithGhostNodes(), and MeshBasedTissueWithGhostNodes< DIM >::SetGhostNodes().