CCCoreLib::GridAndMeshIntersection Class Reference

Structure to compute the intersection between a mesh and a grid (to compute fast distances) More...

#include <GridAndMeshIntersection.h>

Collaboration diagram for CCCoreLib::GridAndMeshIntersection:

Public Member Functions
	GridAndMeshIntersection ()
	Default constructor.
virtual	~GridAndMeshIntersection ()
	Destructor.
void	clear ()
	Clears the structure.
bool	isInitialized () const
	Returns whether the structure is initialized or not.
bool	computeMeshIntersection (GenericIndexedMesh *mesh, const CCVector3 &minGridBB, const CCVector3 &maxGridBB, PointCoordinateType cellSize, GenericProgressCallback *progressCb=nullptr)
	Initializes the structure with a mesh.
bool	initDistanceTransformWithMesh (GenericIndexedMesh *mesh, const CCVector3 &minGridBB, const CCVector3 &maxGridBB, const CCVector3 &minFilledBB, const CCVector3 &maxFilledBB, PointCoordinateType cellSize, GenericProgressCallback *progressCb=nullptr)
	Initializes the structure with a mesh.
Tuple3i	computeCellPos (const CCVector3 &P) const
	Computes the (grid) cell position that contains a given point.
void	computeCellCenter (const Tuple3i &cellPos, CCVector3 &center) const
	Computes the center of a given (grid) cell. More...
const GenericIndexedMesh *	mesh () const
	Returns the associated mesh (if any)
const SaitoSquaredDistanceTransform *	distanceTransform () const
	Returns the distance transform (if any)
unsigned	distanceTransformValue (const Tuple3i &cellPos, bool isLocalCellPos) const
	Returns the distance transform value (if any)
PointCoordinateType	cellSize () const
	Returns the virtual grid cell size.
Tuple3i	toLocal (const Tuple3i &cellPos) const
	Converts a global cell position to a local one.
const TriangleList *	trianglesInCell (const Tuple3i &cellPos, bool isLocalCellPos) const
	Returns the list of triangles intersecting a given cell.
void	computeSignedDistToBoundaries (const Tuple3i &cellPos, Tuple3i &distToLowerBorder, Tuple3i &distToUpperBorder) const
	Computes the distances between a given cell and the inner grid boundaries.

Protected Attributes
GenericIndexedMesh *	m_mesh
	Mesh.
SaitoSquaredDistanceTransform *	m_distanceTransform
	Distance transform.
CCVector3	m_minGridBB
	Virtual grid bounding-box (min corner)
CCVector3	m_maxGridBB
	Virtual grid bounding-box (max corner)
Tuple3i	m_minFillIndexes
	Virtual grid occupancy of the mesh (minimum indexes for each dimension)
Tuple3i	m_maxFillIndexes
	Virtual grid occupancy of the mesh (maximum indexes for each dimension)
PointCoordinateType	m_cellSize
	Virtual grid cell size.
Grid3D< TriangleList * >	m_perCellTriangleList
	Grid of TriangleList items. More...
bool	m_initialized
	Whether the structure is properly initialized.

Detailed Description

Structure to compute the intersection between a mesh and a grid (to compute fast distances)

Member Function Documentation

computeCellCenter()

void CCCoreLib::GridAndMeshIntersection::computeCellCenter ( const Tuple3i &  cellPos, CCVector3 &  center  ) const

inline

Computes the center of a given (grid) cell.

Parameters

cellPos	the (grid) cell position
center	the computed center

Member Data Documentation

m_perCellTriangleList

Grid3D<TriangleList*> CCCoreLib::GridAndMeshIntersection::m_perCellTriangleList

protected

Grid of TriangleList items.

Warning

: may be smaller than the 'virtual grid' (see m_minFillIndexes and m_maxFillIndexes)

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

• GridAndMeshIntersection.h
• GridAndMeshIntersection.cpp