volcart::texturing::ProjectMesh Class Reference

Generates a PerPixelMap by projecting a mesh onto an image plane. More...

#include <vc/texturing/ProjectMesh.hpp>

Collaboration diagram for volcart::texturing::ProjectMesh:

Public Member Functions
void	setMesh (const ITKMesh::Pointer &inputMesh)
	Set the input mesh.
void	setTransform (CompositeTransform::Pointer transform)
	Set the image transform from mesh texture to target.
void	setUseInverseTransform (bool useInverse)
	Invert the image transform prior to use.
void	setSampleMode (SampleMode mode)
	Set the PPM space sampling mode.
void	setTextureDimensions (int width, int height)
	Set the texture image dimensions.
void	setPPMDimensions (int width, int height)
	Set the PPM dimensions.
void	setSampleRate (double rate)
	Set the X and Y sample rate for the PPM.
void	setUseFirstIntersection (bool useFirstIntersection)
	Use the first mesh intersection rather than the last.
auto	compute () -> PerPixelMap
	Project mesh and compute PerPixelMap with given settings.

Private Attributes
ITKMesh::Pointer	inputMesh_
PerPixelMap	outputPPM_
CompositeTransform::Pointer	tfm_
bool	useInverse_ {false}
SampleMode	mode_ {SampleMode::Rate}
int	textureWidth_ {1}
int	textureHeight_ {1}
int	ppmWidth_ {0}
int	ppmHeight_ {0}
double	sampleRateX_ {1.0}
double	sampleRateY_ {1.0}
bool	useFirstIntersection_
enum class	SampleMode { Rate , Dimensions }
	Target image space sampling method. More...
using	CompositeTransform = itk::CompositeTransform< double, 2 >
using	Point = itk::Point< double, 2 >
	ProjectMesh ()=default
	Default constructor.

Detailed Description

Generates a PerPixelMap by projecting a mesh onto an image plane.

Constructs an oriented bounding box around a mesh, chooses the largest plane as the image plane, and iterates over the surface of this plane. At each point, projects a ray oriented with the bounding box into the mesh. The position and surface normal at the mesh intersection point are stored in the PPM.

The input mesh should separately be modified using rt_reorder_texture from registration-toolkit if the PPM should align with the texture image. Optionally, if the mesh already has a reordered texture and a separate image has been registered to that texture image, the separate target image and its registration transform can be passed. In this scenario this class will iterate over the provided target image space, first mapping each point using the transform to find its corresponding location in the mesh bounding box plane before performing the ray intersection. The inverse transform may be specified if registration was performed with the mesh texture as the fixed image.

By default, the last mesh intersection point is used for each ray, optionally this may be changed to the first intersection point.

This class uses raytracing functionality provided by the bvh library.

See also

volcart::PerPixelMap

Definition at line 41 of file ProjectMesh.hpp.

Member Typedef Documentation

CompositeTransform

using volcart::texturing::ProjectMesh::CompositeTransform = itk::CompositeTransform<double, 2>

Composite transform type

Definition at line 56 of file ProjectMesh.hpp.

Point

using volcart::texturing::ProjectMesh::Point = itk::Point<double, 2>

Transform point type

Definition at line 58 of file ProjectMesh.hpp.

Member Enumeration Documentation

SampleMode

enum class volcart::texturing::ProjectMesh::SampleMode

strong

Target image space sampling method.

Enumerator
Rate	Samples per unit interval in mesh space determine PPM dimensions.
Dimensions	PPM dimensions determine image plane sample rate.

Definition at line 46 of file ProjectMesh.hpp.

Member Data Documentation

inputMesh_

ITKMesh::Pointer volcart::texturing::ProjectMesh::inputMesh_

private

Input mesh

Definition at line 96 of file ProjectMesh.hpp.

mode_

SampleMode volcart::texturing::ProjectMesh::mode_ {SampleMode::Rate}

private

PPM sampling mode

Definition at line 106 of file ProjectMesh.hpp.

outputPPM_

PerPixelMap volcart::texturing::ProjectMesh::outputPPM_

private

Output PPM

Definition at line 98 of file ProjectMesh.hpp.

ppmHeight_

int volcart::texturing::ProjectMesh::ppmHeight_ {0}

private

PerPixelMap height in pixels

Definition at line 114 of file ProjectMesh.hpp.

ppmWidth_

int volcart::texturing::ProjectMesh::ppmWidth_ {0}

private

PerPixelMap width in pixels

Definition at line 112 of file ProjectMesh.hpp.

sampleRateX_

double volcart::texturing::ProjectMesh::sampleRateX_ {1.0}

private

PerPixelMap sample rate in X axis

Definition at line 116 of file ProjectMesh.hpp.

sampleRateY_

double volcart::texturing::ProjectMesh::sampleRateY_ {1.0}

private

PerPixelMap sample rate in Y axis

Definition at line 118 of file ProjectMesh.hpp.

textureHeight_

int volcart::texturing::ProjectMesh::textureHeight_ {1}

private

Texture image height in pixels

Definition at line 110 of file ProjectMesh.hpp.

textureWidth_

int volcart::texturing::ProjectMesh::textureWidth_ {1}

private

Texture image width in pixels

Definition at line 108 of file ProjectMesh.hpp.

tfm_

CompositeTransform::Pointer volcart::texturing::ProjectMesh::tfm_

private

Transform from target image to PPM space

Definition at line 101 of file ProjectMesh.hpp.

useFirstIntersection_

bool volcart::texturing::ProjectMesh::useFirstIntersection_

private

Use the first mesh intersection rather than the last

Definition at line 121 of file ProjectMesh.hpp.

useInverse_

bool volcart::texturing::ProjectMesh::useInverse_ {false}

private

Invert transform prior to use

Definition at line 103 of file ProjectMesh.hpp.

---

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

• vc/texturing/ProjectMesh.hpp