StelGeom::ConvexPolygon Class Reference

A special case of ConvexS for which all HalfSpace have an aperture of PI/2. More...

#include <StelSphereGeometry.hpp>

Inherits StelGeom::ConvexS, and StelGeom::Polygon.

List of all members.

Public Member Functions
	ConvexPolygon ()
	ConvexPolygon (const Vec3d &e0, const Vec3d &e1, const Vec3d &e2)
	ConvexPolygon (const Vec3d &e0, const Vec3d &e1, const Vec3d &e2, const Vec3d &e3)
bool	operator== (const ConvexPolygon &other) const
const Vec3d &	operator[] (const Polygon::size_type &i) const
Vec3d &	operator[] (Polygon::size_type &i)
double	getArea () const
Vec3d	getBarycenter () const
Polygon &	asPolygon ()
const Polygon &	asPolygon () const
ConvexS &	asConvex ()
const ConvexS &	asConvex () const
bool	checkValid () const
Static Public Member Functions
static ConvexPolygon	fullSky ()

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Detailed Description

A special case of ConvexS for which all HalfSpace have an aperture of PI/2.

The operator [] behave as for a Polygon, i.e. return the vertex positions. To acces the HalfSpaces, use the asConvex() method.

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Constructor & Destructor Documentation

StelGeom::ConvexPolygon::ConvexPolygon

(

)

[inline]

Default constructor.

StelGeom::ConvexPolygon::ConvexPolygon	(	const Vec3d &	e0,
		const Vec3d &	e1,
		const Vec3d &	e2
	)			[inline]

Special constructor for 3 points.

StelGeom::ConvexPolygon::ConvexPolygon	(	const Vec3d &	e0,
		const Vec3d &	e1,
		const Vec3d &	e2,
		const Vec3d &	e3
	)			[inline]

Special constructor for 4 points.

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Member Function Documentation

const Vec3d& StelGeom::ConvexPolygon::operator[]

(

const Polygon::size_type &

i

)

const [inline]

By default the [] operator return the vertexes.

Vec3d& StelGeom::ConvexPolygon::operator[]

(

Polygon::size_type &

i

)

[inline]

By default the [] operator return the vertexes.

double StelGeom::ConvexPolygon::getArea

(

)

const

Return the convex polygon area in steradians.

Vec3d StelGeom::ConvexPolygon::getBarycenter

(

)

const

Return the convex polygon barycenter.

Polygon& StelGeom::ConvexPolygon::asPolygon

(

)

[inline]

Cast to Polygon in case of ambiguity.

const Polygon& StelGeom::ConvexPolygon::asPolygon

(

)

const [inline]

Same with const.

ConvexS& StelGeom::ConvexPolygon::asConvex

(

)

[inline]

Cast to Convex in case of ambiguity.

const ConvexS& StelGeom::ConvexPolygon::asConvex

(

)

const [inline]

Same with const.

bool StelGeom::ConvexPolygon::checkValid

(

)

const

Check if the polygon is valid, i.e. it has no side >180 etc.

static ConvexPolygon StelGeom::ConvexPolygon::fullSky

(

)

[static]

Special case for degenerated polygons (>180 deg), assume full sky, i.e. intersect and contains is always true.