inviwo::VolumeTetraMesh Class Reference

Data required for rendering an Inviwo Volume as tetrahedral mesh. More...

#include <volumetetramesh.h>

Inheritance diagram for inviwo::VolumeTetraMesh:

Public Member Functions
	VolumeTetraMesh (const std::shared_ptr< const Volume > &volume, int channel=0)
VolumeTetraMesh *	clone () const override
void	setData (const std::shared_ptr< const Volume > &volume, int channel=0)
virtual int	getNumberOfCells () const override
virtual int	getNumberOfPoints () const override
virtual void	get (std::vector< vec4 > &nodes, std::vector< ivec4 > &nodeIds) const override
virtual mat4	getBoundingBox () const override
virtual dvec2	getDataRange () const override
virtual const Axis *	getAxis (size_t index) const override
Public Member Functions inherited from inviwo::SpatialEntity
	SpatialEntity (const glm::mat4 &modelMatrix)
	SpatialEntity (const glm::mat4 &modelMatrix, const glm::mat4 &worldMatrix)
	SpatialEntity (const SpatialEntity &rhs)
SpatialEntity &	operator= (const SpatialEntity &that)
glm::vec3	getOffset () const
void	setOffset (const glm::vec3 &offset)
glm::mat3	getBasis () const
void	setBasis (const glm::mat3 &basis)
glm::mat4	getModelMatrix () const
void	setModelMatrix (const glm::mat4 &modelMatrix)
glm::mat4	getWorldMatrix () const
void	setWorldMatrix (const glm::mat4 &worldMatrix)
virtual const SpatialCoordinateTransformer &	getCoordinateTransformer () const
virtual const SpatialCameraCoordinateTransformer &	getCoordinateTransformer (const Camera &camera) const

Additional Inherited Members
Protected Attributes inherited from inviwo::SpatialEntity
std::unique_ptr< SpatialCoordinateTransformer >	transformer_
std::unique_ptr< SpatialCameraCoordinateTransformer >	cameraTransformer_
glm::mat4	modelMatrix_
glm::mat4	worldMatrix_

Detailed Description

Data required for rendering an Inviwo Volume as tetrahedral mesh.

Provides an interface between a Volume and the data structures required for rendering a tetrahedral mesh. Six tetrahedra are created in between each four voxels of the volume to convert the cell-centered data of the uniform grid of the Volume to node-centered values.

The extent of the TetraMesh will be smaller than the extent of the Volume by half a voxel in each dimension.

Member Function Documentation

clone()

VolumeTetraMesh * inviwo::VolumeTetraMesh::clone ( ) const

overridevirtual

Implements inviwo::TetraMesh.

get()

virtual void inviwo::VolumeTetraMesh::get ( std::vector< vec4 > & nodes, std::vector< ivec4 > & nodeIds ) const

overridevirtual

Fill the nodes vector with the 3D coordinates of each node along with its scalar value (vec4). The scalar is stored in the w component. The nodeIds vector is filled with the node/vertex IDs for each tetrahedron (ivec4). The faces opposite of each node are implicitly encoded. The coordinates are given in Data space and can be transformed to Model space using the Model matrix or SpatialCoordinateTransformer::getDataToModelMatrix().

Implements inviwo::TetraMesh.

getAxis()

virtual const Axis * inviwo::VolumeTetraMesh::getAxis ( size_t index ) const

overridevirtual

returns the axis information corresponding to index

Returns

nullptr if there is no axis for index

Implements inviwo::SpatialEntity.

getBoundingBox()

virtual mat4 inviwo::VolumeTetraMesh::getBoundingBox ( ) const

overridevirtual

Return the bounding box of all nodes of the tetrahedral mesh in world space. The bounding box is represented using a mat4, where all positions are between bbox * (x,y,z,1) where x, y, and z are between 0 and 1.

Implements inviwo::TetraMesh.

getDataRange()

virtual dvec2 inviwo::VolumeTetraMesh::getDataRange ( ) const

overridevirtual

Return the data range of the scalar values

Returns

scalar value range

Implements inviwo::TetraMesh.

getNumberOfCells()

virtual int inviwo::VolumeTetraMesh::getNumberOfCells ( ) const

overridevirtual

Implements inviwo::TetraMesh.

getNumberOfPoints()

virtual int inviwo::VolumeTetraMesh::getNumberOfPoints ( ) const

overridevirtual

Implements inviwo::TetraMesh.

setData()

void inviwo::VolumeTetraMesh::setData	(	const std::shared_ptr< const Volume > &	volume,
		int	channel = 0 )

Use volume as source for the tetrahedralization into a TetraMesh.

Parameters

volume	input volume to be converted
channel	volume channel used as scalar values

Exceptions

Exception

if one of the volume dimensions is less than 2

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

• volumetetramesh.h