Distort/undistort focal plane coordinates. More...

#include <LoMediumDistortionMap.h>

Public Member Functions
	LoMediumDistortionMap (Camera *parent)
	Constructor for LunarOrbiterMediumDistortionMap class.

void	SetDistortion (const int naifIkCode)
	Load LO Medium Resolution Camera perspective & distortion coefficients.

virtual bool	SetFocalPlane (const double dx, const double dy)
	Compute undistorted focal plane x/y for Lo Medium Resolution Camera.

virtual bool	SetUndistortedFocalPlane (const double ux, const double uy)
	Compute distorted focal plane x/y for Lo Medium Resolution Camera.

std::vector< double >	OpticalDistortionCoefficients () const
	Return optical distortion polynomial coefficients.

double	ZDirection () const
	Return the direction of the focal plane Z-axis.

double	FocalPlaneX () const
	Return distorted focal plane x.

double	FocalPlaneY () const
	Return distorted focal plane y.

double	UndistortedFocalPlaneX () const
	Return undistorted focal plane x.

double	UndistortedFocalPlaneY () const
	Return undistorted focal plane y.

double	UndistortedFocalPlaneZ () const
	Return undistorted focal plane z.

Protected Attributes
Camera *	p_camera

double	p_focalPlaneX

double	p_focalPlaneY

double	p_undistortedFocalPlaneX

double	p_undistortedFocalPlaneY

double	p_zDirection

std::vector< double >	p_odk

Detailed Description

Distort/undistort focal plane coordinates.

Creates a map for adding/removing optical distortions from the focal plane of the Lunar Orbiter medium resolution camera.

See Also: LoMediumCamera

Author: 2007-07-31 Debbie A. Cook

Constructor & Destructor Documentation

Isis::LoMediumDistortionMap::LoMediumDistortionMap ( Camera * parent )

Constructor for LunarOrbiterMediumDistortionMap class.

Define the distortion model coefficients for a Lunar Orbiter Medium Resolution camera.

Parameters

parent A pointer to the parent camera object

Member Function Documentation

double Isis::CameraDistortionMap::FocalPlaneX ( ) const

inlineinherited

Return distorted focal plane x.

References Isis::CameraDistortionMap::p_focalPlaneX.

Referenced by Isis::ControlPoint::ComputeResiduals(), Isis::Camera::SetRightAscensionDeclination(), and Isis::LineScanCameraSkyMap::SetSky().

double Isis::CameraDistortionMap::FocalPlaneY ( ) const

inlineinherited

Return distorted focal plane y.

References Isis::CameraDistortionMap::p_focalPlaneY.

Referenced by Isis::ControlPoint::ComputeResiduals(), Isis::Camera::SetRightAscensionDeclination(), and Isis::LineScanCameraSkyMap::SetSky().

std::vector< double > Isis::CameraDistortionMap::OpticalDistortionCoefficients ( ) const

inherited

Return optical distortion polynomial coefficients.

References Isis::CameraDistortionMap::p_odk.

void Isis::LoMediumDistortionMap::SetDistortion ( const int naifIkCode )

Load LO Medium Resolution Camera perspective & distortion coefficients.

This method loads the distortion centers, and coefficients from the instrument kernel. * The distortion center coordinates (in mm) are expected to be in the form of:

INSxxxxxxx_DISTORTION_CENTER = ( xcenter, ycenter)
where xxxxxxx is the instrument code (always a negative number).

The center, (x0,y0), will be used to calculate the radius of distortion, r, in the equations below.

distX = x - x0 distY = y - y0, where (x,y) are the distorted focal plane coordinates. r^2 = (DistX^2 + DistY^2)/sref^2

The distortion coefficients in the NAIF instrument kernel are expected to be in the form of:

INSxxxxxxx_OD_K = ( coef1, coef2, ..., coefN)
where xxxxxxx is as is described above for the distortion center.

These coefficient will be used to convert from focal plane x,y to to undistorted x,y as follows:

dr/r = (k0 + k1*r^2 + k2*r^4)/sref ux = x - DistX*dr/r, similarly for uy

Parameters

naifIkCode Code to search for in instrument kernel

References Isis::CameraFocalPlaneMap::DetectorLine(), Isis::CameraFocalPlaneMap::DetectorSample(), Isis::Camera::FocalPlaneMap(), Isis::CameraDistortionMap::p_camera, Isis::CameraDistortionMap::SetDistortion(), Isis::CameraFocalPlaneMap::SetFocalPlane(), and Isis::toString().

Referenced by Isis::LoMediumCamera::LoMediumCamera().

bool Isis::LoMediumDistortionMap::SetFocalPlane	(	const double	dx,
		const double	dy
	)

virtual

Compute undistorted focal plane x/y for Lo Medium Resolution Camera.

Compute undistorted focal plane x/y given a distorted focal plane x/y for the Lunar Orbiter Medium Resolution Camera. The polynomial used is described in the SetDistortion documentation. After calling this method, the undistorted x/y can be obtained via the UndistortedFocalPlaneX and UndistortedFocalPlaneY methods of the parent class.

Parameters

dx	Distorted focal plane x in millimeters
dy	Distorted focal plane y in millimeters

Returns: Whether the conversion was successful

See Also: SetDistortion

Reimplemented from Isis::CameraDistortionMap.

References Isis::CameraFocalPlaneMap::DetectorLine(), Isis::CameraFocalPlaneMap::DetectorSample(), Isis::Camera::FocalPlaneMap(), Isis::CameraFocalPlaneMap::FocalPlaneX(), Isis::CameraFocalPlaneMap::FocalPlaneY(), Isis::CameraDistortionMap::p_camera, Isis::CameraDistortionMap::p_focalPlaneX, Isis::CameraDistortionMap::p_focalPlaneY, Isis::CameraDistortionMap::p_odk, Isis::CameraDistortionMap::p_undistortedFocalPlaneX, Isis::CameraDistortionMap::p_undistortedFocalPlaneY, Isis::CameraFocalPlaneMap::SetDetector(), and Isis::CameraFocalPlaneMap::SetFocalPlane().

bool Isis::LoMediumDistortionMap::SetUndistortedFocalPlane	(	const double	ux,
		const double	uy
	)

virtual

Compute distorted focal plane x/y for Lo Medium Resolution Camera.

Compute distorted focal plane x/y given an undistorted focal plane x/y for the Lunar Orbiter Medium Resolution Camera. This method applies a distortion error based on a polynomial defined in the SetDistortion method. After calling this method the distorted x/y can be obtained via the FocalPlaneX and FocalPlaneY methods.

Parameters