Projection< N, Nnew, P, NUM, Policy > Class Template Reference

Class that projects a N dimensional vertex array to Nnew dimensions. More...

#include <Projection.h>

Inheritance diagram for Projection< N, Nnew, P, NUM, Policy >:

Collaboration diagram for Projection< N, Nnew, P, NUM, Policy >:

List of all members.

Public Types
typedef ViewpointList< N, Nnew, NUM >	PointList
	Type of the list of view points and camera positions.
typedef ArrayList< N-Nnew, NUM >	DistanceList
	Type of the list of screen distances from the camera.
typedef ArrayList< N-Nnew, bool >	BoolList
	Type of the list of bools deciding whether each projection uses depth cue or not.
Public Member Functions
	Projection (const PointList &viewpoint, const PointList &eye, const DistanceList &screenDistance, const BoolList &depthCue4D)
	Create a Projection with arbitrary view- and camera points for each dimension.
	Projection (NUM scrW, NUM camW, bool depthCue4D)
	Create a Projection with view point at the origin and same parameters for each dimension.
VecMath::MultiDimensionalVector < VecMath::Vector< Nnew, NUM > , P >	project (const VecMath::MultiDimensionalVector< VecMath::Vector< N, NUM >, P > &values)
	Execute the Projection on a P dimensional field of N dimensional vertices.
Private Member Functions
void	checkConsistency ()
	Check whether this Projection is created with sensible parameters.
void	checkDimensions ()
	Check whether the template is instantiated with sensible values for the dimensions.
PointList	makeOriginViewPointList ()
	Generates a ViewpointList looking at the origin in every dimension.
PointList	makeEyePointList (NUM camW)
	Generates a list of camera positions camW units away from the origin in every dimension.
DistanceList	makeScreenDistanceList (NUM scrW)
	Generates a list of screen distances scrW units away each.
BoolList	makeDepthCueList (bool depthCue4D)
	Generates a list of bools which all are equal to depthCue4D.
Private Attributes
PointList	_viewpoint
	List of view points for the downprojection in each dimension.
PointList	_eye
	List of camera positions for the downprojection in each dimension.
DistanceList	_screen_distance
	List of screen distances for the downprojection in each dimension.
BoolList	_depth_cue
	List of flags whether depth cue is used for the downprojection in each dimension.

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Detailed Description

template<unsigned N, unsigned Nnew, unsigned P, typename NUM = double, typename Policy = SimpleProjectionPolicy <N, Nnew, P, NUM>>
class Projection< N, Nnew, P, NUM, Policy >

Class that projects a N dimensional vertex array to Nnew dimensions.

Template Parameters:

N	Original dimension of the Vector s to project.
Nnew	Dimension to project into.
P	Dimension of parameter space of the projected vertex array.
NUM	The numeric type of the Vector s.
Policy	The class executing the actual projection on the vertices.

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Constructor & Destructor Documentation

template<unsigned N, unsigned Nnew, unsigned P, typename NUM , class Policy >

Projection< N, Nnew, P, NUM, Policy >::Projection	(	const PointList &	viewpoint,
		const PointList &	eye,
		const DistanceList &	screenDistance,
		const BoolList &	depthCue
	)

Create a Projection with arbitrary view- and camera points for each dimension.

Parameters:

viewpoint	List of view points for the downprojection in each dimension.
eye	List of camera positions for the downprojection in each dimension.
screenDistance	List of screen distances for the downprojection in each dimension.
depthCue	List of flags whether depth cue is used for the downprojection in each dimension.

References Projection< N, Nnew, P, NUM, Policy >::checkConsistency().

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template<unsigned N, unsigned Nnew, unsigned P, typename NUM, class Policy >

Projection< N, Nnew, P, NUM, Policy >::Projection	(	NUM	scrW,
		NUM	camW,
		bool	depthCue4D
	)

Create a Projection with view point at the origin and same parameters for each dimension.

Camera is on the axis which is projected along at distance camW from the origin, the screen has distance scrW and depthCue4D indicates if depth cue is used, the same in every projection that is done to project from N to Nnew.

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Member Function Documentation

template<unsigned N, unsigned Nnew, unsigned P, typename NUM , class Policy >

void Projection< N, Nnew, P, NUM, Policy >::checkConsistency

(

)

[private]

Check whether this Projection is created with sensible parameters.

Todo:

check view points, eye points and distances.

Referenced by Projection< N, Nnew, P, NUM, Policy >::Projection().

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template<unsigned N, unsigned Nnew, unsigned P, typename NUM , class Policy >

void Projection< N, Nnew, P, NUM, Policy >::checkDimensions

(

)

[private]

Check whether the template is instantiated with sensible values for the dimensions.

Todo:

I would prefer a compilation error to throwing an exception when N equals Nnew, but I don't see how to achieve this.

template<unsigned N, unsigned Nnew, unsigned P, typename NUM, class Policy >

VecMath::MultiDimensionalVector< VecMath::Vector< Nnew, NUM >, P > Projection< N, Nnew, P, NUM, Policy >::project

(

const VecMath::MultiDimensionalVector< VecMath::Vector< N, NUM >, P > &

values

)

Execute the Projection on a P dimensional field of N dimensional vertices.

Parameters:

values

The vertices which are projected to Nnew- space.

Referenced by VertexHolder< N, P, NUM >::Project().

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

• HyperspaceExplorer/src/Displayable/Projection.h
• HyperspaceExplorer/src/Displayable/Projection.impl.h