Creates a non interpolated triangulation of an isosurface. More...

#include <WMarchingLegoAlgorithm.h>

Collaboration diagram for WMarchingLegoAlgorithm:

Public Member Functions
	WMarchingLegoAlgorithm ()
	standard constructor More...

	~WMarchingLegoAlgorithm ()
	destructor More...

template<typename T >
std::shared_ptr< WTriangleMesh >	generateSurface (size_t nbCoordsX, size_t nbCoordsY, size_t nbCoordsZ, const WMatrix< double > &mat, const std::vector< T > *vals, double isoValue, std::shared_ptr< WProgressCombiner > mainProgress=std::shared_ptr< WProgressCombiner >())
	Generate the triangles for the surface on the given dataSet (inGrid, vals). More...

std::shared_ptr< WTriangleMesh >	genSurfaceOneValue (size_t nbCoordsX, size_t nbCoordsY, size_t nbCoordsZ, const WMatrix< double > &mat, const std::vector< size_t > *vals, size_t isoValue, std::shared_ptr< WProgressCombiner > progress=std::shared_ptr< WProgressCombiner >())
	Generate the triangles for the surface on the given dataSet (inGrid, vals). More...

Private Member Functions
void	addSurface (size_t x, size_t y, size_t z, size_t surface)
	adds 2 triangles for a given face of the voxel More...

size_t	getVertexID (size_t nX, size_t nY, size_t nZ)
	returns a vertex id for a given grid point More...

Private Attributes
unsigned int	m_nCellsX
	No. of cells in x direction. More...

unsigned int	m_nCellsY
	No. of cells in y direction. More...

unsigned int	m_nCellsZ
	No. of cells in z direction. More...

double	m_tIsoLevel
	The isovalue. More...

WMatrix< double >	m_matrix
	The 4x4 transformation matrix for the triangle vertices. More...

ID2WMLPointXYZId	m_idToVertices
	List of WPointXYZIds which form the isosurface. More...

WMLTriangleVECTOR	m_trivecTriangles
	List of WMCTriangleS which form the triangulation of the isosurface. More...

Detailed Description

Creates a non interpolated triangulation of an isosurface.

Definition at line 63 of file WMarchingLegoAlgorithm.h.

Constructor & Destructor Documentation

◆ WMarchingLegoAlgorithm()

WMarchingLegoAlgorithm::WMarchingLegoAlgorithm ( )

standard constructor

Definition at line 30 of file WMarchingLegoAlgorithm.cpp.

◆ ~WMarchingLegoAlgorithm()

WMarchingLegoAlgorithm::~WMarchingLegoAlgorithm ( )

destructor

Definition at line 35 of file WMarchingLegoAlgorithm.cpp.

Member Function Documentation

◆ addSurface()

void WMarchingLegoAlgorithm::addSurface	(	size_t	x,
		size_t	y,
		size_t	z,
		size_t	surface
	)

private

adds 2 triangles for a given face of the voxel

Parameters

x	position of the voxel
y	position of the voxel
z	position of the voxel
surface	which side of the voxel to paint

Definition at line 39 of file WMarchingLegoAlgorithm.cpp.

References getVertexID(), m_idToVertices, m_trivecTriangles, WMLPointXYZId::newID, WMLTriangle::pointID, WMLPointXYZId::x, WMLPointXYZId::y, and WMLPointXYZId::z.

Referenced by generateSurface(), and genSurfaceOneValue().

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◆ generateSurface()

template<typename T >

std::shared_ptr< WTriangleMesh > WMarchingLegoAlgorithm::generateSurface	(	size_t	nbCoordsX,
		size_t	nbCoordsY,
		size_t	nbCoordsZ,
		const WMatrix< double > &	mat,
		const std::vector< T > *	vals,
		double	isoValue,
		std::shared_ptr< WProgressCombiner >	mainProgress = `std::shared_ptr < WProgressCombiner >()`
	)

Generate the triangles for the surface on the given dataSet (inGrid, vals).

The texture coordinates in the resulting mesh are relative to the grid. This means they are NOT transformed. This ensure faster grid matrix updates in texture space. This might be useful where texture transformation matrices are used.

Parameters

nbCoordsX	number of vertices in X direction
nbCoordsY	number of vertices in Y direction
nbCoordsZ	number of vertices in Z direction
mat	the matrix transforming the vertices from canonical space
vals	the values at the vertices
isoValue	The surface will run through all positions with this value.
mainProgress	Pointer to the parent's progress reporter. Leave empty if no progress should be shown

Returns: the created triangle mesh

Definition at line 154 of file WMarchingLegoAlgorithm.h.

References addSurface(), m_idToVertices, m_matrix, m_nCellsX, m_nCellsY, m_nCellsZ, m_tIsoLevel, and m_trivecTriangles.

Referenced by WROIArbitrary::updateGFX().

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◆ genSurfaceOneValue()

std::shared_ptr< WTriangleMesh > WMarchingLegoAlgorithm::genSurfaceOneValue	(	size_t	nbCoordsX,
		size_t	nbCoordsY,
		size_t	nbCoordsZ,
		const WMatrix< double > &	mat,
		const std::vector< size_t > *	vals,
		size_t	isoValue,
		std::shared_ptr< WProgressCombiner >	progress = `std::shared_ptr < WProgressCombiner >()`
	)

Generate the triangles for the surface on the given dataSet (inGrid, vals).

The texture coordinates in the resulting mesh are relative to the grid. This means they are NOT transformed. This ensure faster grid matrix updates in texture space. This might be useful where texture transformation matrices are used.

Parameters

nbCoordsX	number of vertices in X direction
nbCoordsY	number of vertices in Y direction
nbCoordsZ	number of vertices in Z direction
mat	the matrix transforming the vertices from canonical space
vals	the values at the vertices
isoValue	The surface will run through all positions with this value.
progress	parent's WProgressCombiner. May be empty if no status report is requested