OctahedronPolygon Class Reference

Manage a non-convex polygon which can extends on more than 180 deg. More...

#include <OctahedronPolygon.hpp>

Public Member Functions
	OctahedronPolygon (const SubContour &subContour)
	Create the OctahedronPolygon by splitting the passed SubContour on the 8 sides of the octahedron.
	OctahedronPolygon (const QVector< QVector< Vec3d > > &contours)
	OctahedronPolygon (const QVector< Vec3d > &contour)
	OctahedronPolygon (const QList< OctahedronPolygon > &octContours)
double	getArea () const
Vec3d	getPointInside () const
StelVertexArray	getFillVertexArray () const
	Returns the list of triangles resulting from tesselating the contours.
StelVertexArray	getOutlineVertexArray () const
void	getBoundingCap (Vec3d &v, double &d) const
void	inPlaceIntersection (const OctahedronPolygon &mpoly)
	Set this OctahedronPolygon as the intersection of itself with the given OctahedronPolygon.
void	inPlaceUnion (const OctahedronPolygon &mpoly)
	Set this OctahedronPolygon as the union of itself with the given OctahedronPolygon.
void	inPlaceSubtraction (const OctahedronPolygon &mpoly)
	Set this OctahedronPolygon as the subtraction of itself with the given OctahedronPolygon.
bool	intersects (const OctahedronPolygon &mpoly) const
bool	contains (const OctahedronPolygon &mpoly) const
bool	contains (const Vec3d &p) const
bool	isEmpty () const
QString	toJson () const

Static Public Member Functions
static const OctahedronPolygon &	getAllSkyOctahedronPolygon ()
static const OctahedronPolygon &	getEmptyOctahedronPolygon ()
static double	sphericalTriangleArea (const Vec3d &v0, const Vec3d &v1, const Vec3d &v2)

Friends
class	TestStelSphericalGeometry
QDataStream &	operator<< (QDataStream &, const OctahedronPolygon &)
QDataStream &	operator>> (QDataStream &, OctahedronPolygon &)
OctahedronPolygon	createAllSkyOctahedronPolygon ()

Detailed Description

The contours defining the polygon are splitted and projected on the 8 sides of an Octahedron to enable 2D geometry algorithms to be used.