A volume representation used by the standard Marching Cubes implementation. More...

#include <FastBox.hpp>

Inheritance diagram for lvr2::FastBox< BaseVecT >:

Public Member Functions
	FastBox (BaseVecT center)
	Constructs a new box at the given center point defined by the used m_voxelsize}. More...

BaseVecT	getCenter ()

FastBox< BaseVecT > *	getNeighbor (int index)

virtual void	getSurface (BaseMesh< BaseVecT > &mesh, vector< QueryPoint< BaseVecT >> &query_points, uint &globalIndex)
	Performs a local reconstruction according to the standard Marching Cubes table from Paul Bourke. More...

virtual void	getSurface (BaseMesh< BaseVecT > &mesh, vector< QueryPoint< BaseVecT >> &query_points, uint &globalIndex, BoundingBox< BaseVecT > &bb, vector< unsigned int > &duplicates, float comparePrecision)

uint	getVertex (int index)
	Gets the vertex index of the queried cell corner. More...

void	setNeighbor (int index, FastBox< BaseVecT > *cell)
	Adjacent cells in the grid should use common vertices. This functions assigns the value of corner[index] to the corresponding corner of the give neighbor cell. More...

void	setVertex (int index, uint value)
	Each cell vertex (0 to 7) as associated with a vertex in the reconstruction grid. This methods assigns the index value} to the index}th cell corner. More...

virtual	~FastBox ()
	Destructor.NormalT. More...

Public Attributes
BaseVecT	m_center
	The box center. More...

bool	m_duplicate

bool	m_extruded

OptionalVertexHandle	m_intersections [12]
	The twelve intersection between box and surface. More...

FastBox< BaseVecT > *	m_neighbors [27]
	Pointer to all adjacent cells. More...

Static Public Attributes
static uint	INVALID_INDEX
	An index value that is used to reference vertices that are not in the grid. More...

static float	m_voxelsize
	The voxelsize of the reconstruction grid. More...

Protected Types
typedef FastBox< BaseVecT >	BoxType

Protected Member Functions
float	calcIntersection (float x1, float x2, float d1, float d2)

bool	compareFloat (double num1, double num2)

float	distanceToBB (const BaseVecT &v, const BoundingBox< BaseVecT > &bb) const

void	getCorners (BaseVecT corners[], vector< QueryPoint< BaseVecT >> &query_points)
	Calculates the position of the eight cell corners. More...

void	getDistances (float distances[], vector< QueryPoint< BaseVecT >> &query_points)
	Calculates the distance value for the eight cell corners. More...

int	getIndex (vector< QueryPoint< BaseVecT >> &query_points)
	Calculated the index for the MC table. More...

void	getIntersections (BaseVecT corners, float distance, BaseVecT *positions)
	Calculated the 12 possible intersections between the cell and the surface to interpolate. More...

Protected Attributes
uint	m_vertices [8]
	The eight box corners. More...

Friends
template<typename T >
class	BilinearFastBox

Detailed Description

template<typename BaseVecT>
class lvr2::FastBox< BaseVecT >

A volume representation used by the standard Marching Cubes implementation.

Definition at line 65 of file FastBox.hpp.

Member Typedef Documentation

◆ BoxType

template<typename BaseVecT>

typedef FastBox<BaseVecT> lvr2::FastBox< BaseVecT >::BoxType

protected

Definition at line 218 of file FastBox.hpp.

Constructor & Destructor Documentation

◆ FastBox()

template<typename BaseVecT>

lvr2::FastBox< BaseVecT >::FastBox ( BaseVecT center )

Constructs a new box at the given center point defined by the used m_voxelsize}.

◆ ~FastBox()

template<typename BaseVecT>

virtual lvr2::FastBox< BaseVecT >::~FastBox ( )

inlinevirtual

Destructor.NormalT.

Definition at line 78 of file FastBox.hpp.

Member Function Documentation

◆ calcIntersection()

template<typename BaseVecT>

float lvr2::FastBox< BaseVecT >::calcIntersection	(	float	x1,
		float	x2,
		float	d1,
		float	d2
	)

protected

◆ compareFloat()

template<typename BaseVecT>

bool lvr2::FastBox< BaseVecT >::compareFloat	(	double	num1,
		double	num2
	)

inlineprotected

Definition at line 160 of file FastBox.hpp.

◆ distanceToBB()

template<typename BaseVecT>

float lvr2::FastBox< BaseVecT >::distanceToBB	(	const BaseVecT &	v,
		const BoundingBox< BaseVecT > &	bb
	)		const

protected

◆ getCenter()

template<typename BaseVecT>

BaseVecT lvr2::FastBox< BaseVecT >::getCenter ( )

inline

Definition at line 111 of file FastBox.hpp.

◆ getCorners()

template<typename BaseVecT>

void lvr2::FastBox< BaseVecT >::getCorners	(	BaseVecT	corners[],
		vector< QueryPoint< BaseVecT >> &	query_points
	)

protected

Calculates the position of the eight cell corners.

Parameters

corners	The cell corners
query_points	The query points of the grid

◆ getDistances()

template<typename BaseVecT>

void lvr2::FastBox< BaseVecT >::getDistances	(	float	distances[],
		vector< QueryPoint< BaseVecT >> &	query_points
	)

protected

Calculates the distance value for the eight cell corners.

Parameters

distances	The distance values
query_points	The query points of the grid

◆ getIndex()

template<typename BaseVecT>

int lvr2::FastBox< BaseVecT >::getIndex ( vector< QueryPoint< BaseVecT >> & query_points )

protected

Calculated the index for the MC table.

◆ getIntersections()

template<typename BaseVecT>

void lvr2::FastBox< BaseVecT >::getIntersections	(	BaseVecT *	corners,
		float *	distance,
		BaseVecT *	positions
	)

protected

Calculated the 12 possible intersections between the cell and the surface to interpolate.

Parameters

corners	The eight corners of the current cell
distance	The corresponding distance value
positions	The interpolated intersections.

◆ getNeighbor()

template<typename BaseVecT>

FastBox<BaseVecT>* lvr2::FastBox< BaseVecT >::getNeighbor ( int index )

◆ getSurface() [1/2]

template<typename BaseVecT>

virtual void lvr2::FastBox< BaseVecT >::getSurface	(	BaseMesh< BaseVecT > &	mesh,
		vector< QueryPoint< BaseVecT >> &	query_points,
		uint &	globalIndex
	)

virtual

Performs a local reconstruction according to the standard Marching Cubes table from Paul Bourke.

Parameters

mesh	The reconstructed mesh
query_points	A vector containing the query points of the reconstruction grid
globalIndex	The index of the newest vertex in the mesh, i.e. a newly generated vertex shout have the index globalIndex + 1.

Reimplemented in lvr2::TetraederBox< BaseVecT >, and lvr2::BilinearFastBox< BaseVecT >.

◆ getSurface() [2/2]

template<typename BaseVecT>

virtual void lvr2::FastBox< BaseVecT >::getSurface	(	BaseMesh< BaseVecT > &	mesh,
		vector< QueryPoint< BaseVecT >> &	query_points,
		uint &	globalIndex,
		BoundingBox< BaseVecT > &	bb,
		vector< unsigned int > &	duplicates,
		float	comparePrecision
	)

virtual

Reimplemented in lvr2::BilinearFastBox< BaseVecT >.

◆ getVertex()

template<typename BaseVecT>

uint lvr2::FastBox< BaseVecT >::getVertex ( int index )

Gets the vertex index of the queried cell corner.

Parameters

index One of the eight cell corners

Returns: A vertex index.

◆ setNeighbor()

template<typename BaseVecT>

void lvr2::FastBox< BaseVecT >::setNeighbor	(	int	index,
		FastBox< BaseVecT > *	cell
	)

Adjacent cells in the grid should use common vertices. This functions assigns the value of corner[index] to the corresponding corner of the give neighbor cell.

Parameters

index	One of the eight cell corners.
cell	A neighbor cell.

◆ setVertex()

template<typename BaseVecT>

void lvr2::FastBox< BaseVecT >::setVertex	(	int	index,
		uint	value
	)

Each cell vertex (0 to 7) as associated with a vertex in the reconstruction grid. This methods assigns the index value} to the index}th cell corner.

Parameters

index	One of the eight cell corners.
value	An index in the reconstruction grid.

Friends And Related Function Documentation

◆ BilinearFastBox

template<typename BaseVecT>

template<typename T >

friend class BilinearFastBox

friend

Definition at line 216 of file FastBox.hpp.

Member Data Documentation

◆ INVALID_INDEX

template<typename BaseVecT>

uint lvr2::FastBox< BaseVecT >::INVALID_INDEX

static

An index value that is used to reference vertices that are not in the grid.

Definition at line 144 of file FastBox.hpp.

◆ m_center

template<typename BaseVecT>

BaseVecT lvr2::FastBox< BaseVecT >::m_center

The box center.

Definition at line 152 of file FastBox.hpp.

◆ m_duplicate

template<typename BaseVecT>

bool lvr2::FastBox< BaseVecT >::m_duplicate

Definition at line 149 of file FastBox.hpp.

◆ m_extruded

template<typename BaseVecT>

bool lvr2::FastBox< BaseVecT >::m_extruded

Definition at line 148 of file FastBox.hpp.

◆ m_intersections

template<typename BaseVecT>

OptionalVertexHandle lvr2::FastBox< BaseVecT >::m_intersections[12]

The twelve intersection between box and surface.

Definition at line 147 of file FastBox.hpp.

◆ m_neighbors

template<typename BaseVecT>

FastBox<BaseVecT>* lvr2::FastBox< BaseVecT >::m_neighbors[27]

Pointer to all adjacent cells.

Definition at line 155 of file FastBox.hpp.

◆ m_vertices

template<typename BaseVecT>

uint lvr2::FastBox< BaseVecT >::m_vertices[8]

protected

The eight box corners.

Definition at line 214 of file FastBox.hpp.

◆ m_voxelsize

template<typename BaseVecT>

float lvr2::FastBox< BaseVecT >::m_voxelsize

static

The voxelsize of the reconstruction grid.

Definition at line 141 of file FastBox.hpp.

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

FastBox.hpp

Public Member Functions

Public Attributes

Static Public Attributes

Protected Types

Protected Member Functions

Protected Attributes

Friends

Detailed Description

template<typename BaseVecT> class lvr2::FastBox< BaseVecT >

Member Typedef Documentation

◆ BoxType

Constructor & Destructor Documentation

◆ FastBox()

◆ ~FastBox()

Member Function Documentation

◆ calcIntersection()

◆ compareFloat()

◆ distanceToBB()

◆ getCenter()

◆ getCorners()

◆ getDistances()

◆ getIndex()

◆ getIntersections()

◆ getNeighbor()

◆ getSurface() [1/2]

◆ getSurface() [2/2]

◆ getVertex()

◆ setNeighbor()

◆ setVertex()

Friends And Related Function Documentation

◆ BilinearFastBox

Member Data Documentation

◆ INVALID_INDEX

◆ m_center

◆ m_duplicate

◆ m_extruded

◆ m_intersections

◆ m_neighbors

◆ m_vertices

◆ m_voxelsize

template<typename BaseVecT>
class lvr2::FastBox< BaseVecT >