vtkOpenGLMatrixDrivenCamera Class Reference

Subclass of vtkCamera so we can just set the relevant intrinsic matrix, the size of the image used in camera calibration, and the size of the actual window to get a calibrated camera view of the rendered scene. So, compared with vtkOpenGLCamera, this class ignores all the stuff to do with orthographic or perspective projection, and just uses the matrix and image/window size. More...

Inheritance diagram for vtkOpenGLMatrixDrivenCamera:

Collaboration diagram for vtkOpenGLMatrixDrivenCamera:

Public Member Functions
	vtkTypeMacro (vtkOpenGLMatrixDrivenCamera, vtkOpenGLCamera)
virtual void	PrintSelf (ostream &os, vtkIndent indent) override
void	Render (vtkRenderer *ren) override
	vtkSetMacro (UseCalibratedCamera, bool)
	vtkGetMacro (UseCalibratedCamera, bool)
void	SetCalibratedImageSize (const int &width, const int &height, double pixelaspect=1.0)
	Set the size of the image in pixels that was used while calibrating the camera model. More...
void	SetActualWindowSize (const int &width, const int &height)
	Set the window/widget size currently used. More...
void	SetIntrinsicParameters (const double &fx, const double &fy, const double &cx, const double &cy)
	Set the intrinsic parameters as determined from camera calibration. More...

Static Public Member Functions
static vtkOpenGLMatrixDrivenCamera *	New ()

Protected Member Functions
	vtkOpenGLMatrixDrivenCamera ()
	~vtkOpenGLMatrixDrivenCamera ()

Detailed Description

Subclass of vtkCamera so we can just set the relevant intrinsic matrix, the size of the image used in camera calibration, and the size of the actual window to get a calibrated camera view of the rendered scene. So, compared with vtkOpenGLCamera, this class ignores all the stuff to do with orthographic or perspective projection, and just uses the matrix and image/window size.

See also

http://sightations.wordpress.com/2010/08/03/simulating-calibrated-cameras-in-opengl/

http://jamesgregson.blogspot.co.uk/2011/11/matching-calibrated-cameras-with-opengl.html

http://strawlab.org/2011/11/05/augmented-reality-with-OpenGL/

where the last of these links seemed most intuitive to my way of thinking.

Constructor & Destructor Documentation

vtkOpenGLMatrixDrivenCamera::vtkOpenGLMatrixDrivenCamera ( )

protected

vtkOpenGLMatrixDrivenCamera::~vtkOpenGLMatrixDrivenCamera ( )

inlineprotected

Member Function Documentation

static vtkOpenGLMatrixDrivenCamera* vtkOpenGLMatrixDrivenCamera::New ( )

static

void vtkOpenGLMatrixDrivenCamera::PrintSelf ( ostream &  os, vtkIndent  indent  )

overridevirtual

void vtkOpenGLMatrixDrivenCamera::Render ( vtkRenderer *  ren )

override

void vtkOpenGLMatrixDrivenCamera::SetActualWindowSize	(	const int &	width,
		const int &	height
	)

Set the window/widget size currently used.

Parameters

width	in pixels.
height	in pixels.

void vtkOpenGLMatrixDrivenCamera::SetCalibratedImageSize	(	const int &	width,
		const int &	height,
		double	pixelaspect = 1.0
	)

Set the size of the image in pixels that was used while calibrating the camera model.

Parameters

width	in pixels.
height	in pixels.
pixelaspect	is the width of a single pixel divided by its height.

void vtkOpenGLMatrixDrivenCamera::SetIntrinsicParameters	(	const double &	fx,
		const double &	fy,
		const double &	cx,
		const double &	cy
	)

Set the intrinsic parameters as determined from camera calibration.

Parameters

fx	scale factor of combined focal length * effective pixel size in horizontal direction.
fy	scale factor of combined focal length * effective pixel size in vertical direction.
cx	centre of projection in x axis.
cy	centre of projection in y axis.

vtkOpenGLMatrixDrivenCamera::vtkGetMacro	(	UseCalibratedCamera	,
		bool
	)

vtkOpenGLMatrixDrivenCamera::vtkSetMacro	(	UseCalibratedCamera	,
		bool
	)

vtkOpenGLMatrixDrivenCamera::vtkTypeMacro	(	vtkOpenGLMatrixDrivenCamera	,
		vtkOpenGLCamera
	)

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

• vtkOpenGLMatrixDrivenCamera.h
• vtkOpenGLMatrixDrivenCamera.cxx