MeshCore::MeshComponents Class Reference

The MeshComponents class searches for topologic independent segments of the given mesh structure. More...

#include <TopoAlgorithm.h>

Classes
struct	CNofFacetsCompare

Public Types
enum	TMode { OverEdge, OverPoint }

Public Member Functions
	MeshComponents (const MeshKernel &rclMesh)
	Some important formulas: More...
void	SearchForComponents (TMode tMode, const std::vector< unsigned long > &aSegment, std::vector< std::vector< unsigned long > > &aclT) const
	Does basically the same as the method above escept that only the faces in aSegment are regarded. More...
void	SearchForComponents (TMode tMode, std::vector< std::vector< unsigned long > > &aclT) const
	Searches for 'isles' of the mesh. More...
	~MeshComponents ()

Detailed Description

The MeshComponents class searches for topologic independent segments of the given mesh structure.

Author

Werner Mayer

Member Enumeration Documentation

TMode

enum MeshCore::MeshComponents::TMode

Enumerator
OverEdge
OverPoint

Constructor & Destructor Documentation

MeshComponents()

MeshComponents::MeshComponents

(

const MeshKernel &

rclMesh

)

Some important formulas:

Ne = 3Nv - Nb + 3B + 6(G-R) Nt = 2Nv - Nb + 2B + 4(G-R)

Ne <= 3Nv + 6(G-R) Nt <= 2Nv + 4(G-R)

Ne ~ 3Nv, Nv >> G, Nv >> R Nt ~ 2Nv, Nv >> G, Nv >> R

Ne = #Edges Nt = #Facets Nv = #Vertices Nb = #Boundary vertices B = #Boundaries G = Genus (Number of holes) R = #components

See also http://max-limper.de/publications/Euler/

~MeshComponents()

MeshComponents::~MeshComponents

(

)

Member Function Documentation

SearchForComponents() [1/2]

void MeshComponents::SearchForComponents	(	TMode	tMode,
		const std::vector< unsigned long > &	aSegment,
		std::vector< std::vector< unsigned long > > &	aclT
	)		const

Does basically the same as the method above escept that only the faces in aSegment are regarded.

References MeshCore::MeshAlgorithm::CountFacetFlag(), OverEdge, OverPoint, MeshCore::MeshAlgorithm::ResetFacetsFlag(), MeshCore::MeshAlgorithm::SetFacetFlag(), and MeshCore::MeshFacet::VISIT.

SearchForComponents() [2/2]

void MeshComponents::SearchForComponents	(	TMode	tMode,
		std::vector< std::vector< unsigned long > > &	aclT
	)		const

Searches for 'isles' of the mesh.

If tMode is OverEdge then facets sharing the same edge are regarded as connected, if tMode is OverPoint then facets sharing a common point are regarded as connected.

Referenced by Mesh::MeshObject::countComponents(), MeshGui::MeshSelection::deselectComponent(), MeshCore::MeshTopoAlgorithm::FindComponents(), Mesh::MeshObject::getComponents(), and MeshGui::MeshSelection::selectComponent().

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

• src/Mod/Mesh/App/Core/TopoAlgorithm.h
• src/Mod/Mesh/App/Core/TopoAlgorithm.cpp