Specification for an abstract triangular plate. More...

#include <TriangularPlate.h>

Inheritance diagram for Isis::TriangularPlate:

Collaboration diagram for Isis::TriangularPlate:

Public Member Functions
	TriangularPlate (const NaifTriangle &plate, const int &plateId=0)
	Basic zero plate constructor.

virtual	~TriangularPlate ()

int	id () const

QString	name () const
	Gets the name of this Plate type.

Distance	minRadius () const
	Gets the minimum radius.

Distance	maxRadius () const
	Determines the maximum radius from all the vertices of the plate.

double	area () const
	Returns the area of the plate in km.

NaifVector	normal () const
	Compute the surface normal of the plate.

NaifVector	center () const

Angle	separationAngle (const NaifVector &raydir) const
	Computes the separation angle from the plate normal of a given vector.

bool	hasIntercept (const NaifVertex &vertex, const NaifVector &raydir) const
	Determines if a look direction from a point intercepts the plate.

bool	hasPoint (const Latitude &lat, const Longitude &lon) const
	Determines the give lat/lon point intercept the triangular plate.

SurfacePoint *	point (const Latitude &lat, const Longitude &lon) const
	Determine the intercept point of a lat/lon location for the plate.

Intercept *	intercept (const NaifVertex &vertex, const NaifVector &raydir) const
	Conpute the intercept point on a triangular plate.

NaifVertex	vertex (int v) const
	Returns the vth point of the triangle.

AbstractPlate *	clone () const
	Retrns a clone of the current plate.

Protected Member Functions
bool	findPlateIntercept (const NaifVertex &obs, const NaifVector &raydir, NaifVertex &point) const
	Determines of if given a vertex and look direction intercepts the plate.

Intercept *	construct (const NaifVertex &vertex, const NaifVector &raydir, SurfacePoint *ipoint) const
	Construct an intercept from a clone of this plate as well as the given vertex, direction vector, and surface point.

Detailed Description

Specification for an abstract triangular plate.

This class implements the abstract concept of a triangular plate. It provides the basic elements of the plate to compute intersections and property values.

Author: 2013-12-05 Kris Becker

Constructor & Destructor Documentation

◆ TriangularPlate()

Isis::TriangularPlate::TriangularPlate	(	const NaifTriangle &	plate,
		const int &	plateId = 0 )

Basic zero plate constructor.

Constructor creates a unique copy of an existing plate

◆ ~TriangularPlate()

Isis::TriangularPlate::~TriangularPlate ( )

virtual

Member Function Documentation

◆ area()

double Isis::TriangularPlate::area ( ) const

virtual

Returns the area of the plate in km.

Returns: double Area of plate in km

Author: 2014-02-05 Kris Becker

Implements Isis::AbstractPlate.

◆ center()

NaifVector Isis::TriangularPlate::center ( ) const

◆ clone()

AbstractPlate * Isis::TriangularPlate::clone ( ) const

virtual

Retrns a clone of the current plate.

Provides replication of the current triangular plate. Note this implementation returns a shared copy of the triangular plate as long as the plate type is shared by copy (TNT library is).

Returns: AbstractPlate* Returns a copy of the plate

Author: 2013-12-05 Kris Becker

Implements Isis::AbstractPlate.

Referenced by intercept().

◆ construct()

Intercept * Isis::AbstractPlate::construct	(	const NaifVertex &	vertex,
		const NaifVector &	raydir,
		SurfacePoint *	ipoint ) const

protectedinherited

Construct an intercept from a clone of this plate as well as the given vertex, direction vector, and surface point.

Parameters

vertex	Observer position
raydir	Look direction
ipoint	Surface point of the intercept location on the body

Returns: Intercept * A pointer to an intercept constructed with the vertex, raydir, ipoint and clone of this AbstractPlate.

References Isis::AbstractPlate::clone().

◆ findPlateIntercept()

bool Isis::TriangularPlate::findPlateIntercept	(	const NaifVertex &	obs,
		const NaifVector &	raydir,
		NaifVertex &	point ) const

protected

Determines of if given a vertex and look direction intercepts the plate.

If from the location in space as specifed by obs and a look direction intercepts the current plate, the intercept point is returned.

Parameters

obs	An observer point in space
raydir	A look direction eminating from the observer point
point	If the observer/look direction intercepts the plate, the intercept point is computed an returned in this parameter. If the intercept point is not determined, this point is unchanged.

Returns: bool Returns true in an intercept point is found, otherwise it returned.

Author: 2013-12-05 Kris Becker

References point().

Referenced by hasIntercept(), hasPoint(), intercept(), and point().

◆ hasIntercept()

bool Isis::TriangularPlate::hasIntercept	(	const NaifVertex &	vertex,
		const NaifVector &	raydir ) const

virtual

Determines if a look direction from a point intercepts the plate.

Given a point in space in body fixed coordinates and a look direction, this method determines the point of intercept on the plate.

Parameters

vertex	An observer point in space in body fixed coordinates
raydir	A look direction vector

Returns: bool Returns true if the look direction from the observer intercepts the plate, otherwise returns false

Author: 2013-12-05 Kris Becker

Implements Isis::AbstractPlate.

References findPlateIntercept(), point(), and vertex().

◆ hasPoint()

bool Isis::TriangularPlate::hasPoint	(	const Latitude &	lat,
		const Longitude &	lon ) const

virtual

Determines the give lat/lon point intercept the triangular plate.

Given a latitude/longitude point, this method determines if it intercepts the plate.

Parameters

lat	The latitude of the given grid point
lon	Longitude of the given point

Returns: bool Returns true if the lat/lon point intercepts the plate, false otherwise

Author: 2013-12-05 Kris Becker

Implements Isis::AbstractPlate.

References findPlateIntercept(), Isis::Distance::Kilometers, Isis::Distance::kilometers(), maxRadius(), point(), and Isis::SurfacePoint::ToNaifArray().

◆ id()

int Isis::TriangularPlate::id ( ) const

◆ intercept()

Intercept * Isis::TriangularPlate::intercept	(	const NaifVertex &	vertex,
		const NaifVector &	raydir ) const

virtual

Conpute the intercept point on a triangular plate.

Given a point in space and a look direction, compute the intercept point on a triangular plate. If the intercept point does not exist, return a null pointer.

Parameters

vertex	Specifies a point in space of a body fixed coordinate
raydir	Specifies a look direction from the vertex in body fixed coordinates. It can be of any magnitude.

Returns: Intercept* Returns the intercept point if it exists on the triangular plate, otherwise returns a null pointer.

Author: 2013-12-05 Kris Becker

Implements Isis::AbstractPlate.

References clone(), findPlateIntercept(), point(), and vertex().

◆ maxRadius()

Distance Isis::TriangularPlate::maxRadius ( ) const

virtual

Determines the maximum radius from all the vertices of the plate.

This method returns the maximum radius (or magnitude) of the vectors of the plate. This routine is typically use to determine the maximum height of a plate so that a sufficient body fixed radius can be used to determine grid intercept points.

Returns: Distance Returns the maximum magnitude of the vertex vectors

Author: 2013-12-05 Kris Becker

Implements Isis::AbstractPlate.

References Isis::Distance::Kilometers.

Referenced by hasPoint(), and point().

◆ minRadius()

Distance Isis::TriangularPlate::minRadius ( ) const

virtual

Gets the minimum radius.

This is a pure virtual function.

Returns: Distance The minimum radius

Implements Isis::AbstractPlate.

References Isis::Distance::Kilometers.

◆ name()

QString Isis::TriangularPlate::name ( ) const

virtual

Gets the name of this Plate type.

Returns: QString AbstractPlate; QString The name of this plate, "AbstractPlate"

Implements Isis::AbstractPlate.

◆ normal()

NaifVector Isis::TriangularPlate::normal ( ) const

virtual

Compute the surface normal of the plate.

Returns: NaifVector Returns the surface normal of the plate

Author: 2013-12-05 Kris Becker

Implements Isis::AbstractPlate.

Referenced by separationAngle().

◆ point()

SurfacePoint * Isis::TriangularPlate::point	(	const Latitude &	lat,
		const Longitude &	lon ) const

virtual

Determine the intercept point of a lat/lon location for the plate.

Determines if a lat/lon point intercepts a plate. Given a latitude and longitude coordinate, this method converts the point to a body fixed X/Y/Z value and computes intercept point within the boundaries if the plate. If no intercept is found, a null pointer is returned.

Parameters

lat	Latitude of the point
lon	Longitude of the point

Returns: SurfacePoint* Pointer to the intersection of the point on the triangle. If an intersection does not exist a null pointer is returned.

Author: 2013-12-05 Kris Becker

Implements Isis::AbstractPlate.

References findPlateIntercept(), Isis::Distance::Kilometers, Isis::Distance::kilometers(), maxRadius(), point(), and Isis::SurfacePoint::ToNaifArray().

Referenced by findPlateIntercept(), hasIntercept(), hasPoint(), intercept(), and point().

◆ separationAngle()

Angle Isis::TriangularPlate::separationAngle ( const NaifVector & raydir ) const

virtual

Computes the separation angle from the plate normal of a given vector.

This method will compute the separation angle between the plate normal and the given direction vector. This can be use for determining the incidence and/or emission angle from an observer point given its look direction.

Parameters

raydir Given a direction vector, compute the angle of separation between it and the plate normal vector

Returns: Returns the angle of separation

Author: 2013-12-05 Kris Becker

Implements Isis::AbstractPlate.

References normal(), and Isis::Angle::Radians.

◆ vertex()

NaifVertex Isis::TriangularPlate::vertex ( int v ) const

Returns the vth point of the triangle.

Returns the X/Y/Z body fixed coordinate of the plate.

Parameters

v	Specifies the point to return. Valid values of v is 0 to 2.

Returns: NaifVertex Returns the X/Y/Z body fixed coordinate of the requested vertex in the plate

Author: 2013-12-05 Kris Becker

References _FILEINFO_, Isis::IException::Programmer, and Isis::toString().

Referenced by hasIntercept(), and intercept().

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

/Users/astamile/ISIS3/isis/src/base/objs/TriangularPlate/TriangularPlate.h
/Users/astamile/ISIS3/isis/src/base/objs/TriangularPlate/TriangularPlate.cpp

Public Member Functions

Protected Member Functions

Detailed Description

Constructor & Destructor Documentation

◆ TriangularPlate()

◆ ~TriangularPlate()

Member Function Documentation

◆ area()

◆ center()

◆ clone()

◆ construct()

◆ findPlateIntercept()

◆ hasIntercept()

◆ hasPoint()

◆ id()

◆ intercept()

◆ maxRadius()

◆ minRadius()

◆ name()

◆ normal()

◆ point()

◆ separationAngle()

◆ vertex()