cg3d::Shape3d Class Reference

A convex 3D shape, described either as a set of convex planar faces or the intersection of a set of halfspaces. More...

#include <cg3d.h>

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Public Member Functions
	Shape3d (PointSet3d *ps_, int nFaces_, int nPoints_, const int *halfspaces_, const int *points_)
virtual	~Shape3d ()
PointSet3d *	getSet (void) const
int	getFaces (void) const
int	getPoints (void) const
int	getPointIndex (int p) const
	Get this point on the boundary of the shape.
const CkVector3d &	getPoint (int p) const
int	getHalfspaceIndex (int f) const
	Extract the halfspace of face f of this shape.
const CkHalfspace3d &	getHalfspace (int f) const
virtual void	getFace (int f, Planar3d &face) const =0
	Extract the boundary of face f of this shape.
bool	contains (const CkVector3d &pt) const
	Return true if this shape fully contains this point.
Protected Attributes
PointSet3d *	ps
Private Attributes
int	nFaces
int	nPoints
const int *	halfspaces
const int *	points

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Detailed Description

A convex 3D shape, described either as a set of convex planar faces or the intersection of a set of halfspaces.

Definition at line 145 of file cg3d.h.

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Constructor & Destructor Documentation

cg3d::Shape3d::Shape3d	(	PointSet3d *	ps_,
		int	nFaces_,
		int	nPoints_,
		const int *	halfspaces_,
		const int *	points_
	)			[inline]

Definition at line 153 of file cg3d.h.

Shape3d::~Shape3d

(

)

[virtual]

Definition at line 127 of file cg3d.C.

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Member Function Documentation

PointSet3d* cg3d::Shape3d::getSet

(

void

)

const [inline]

Definition at line 159 of file cg3d.h.

References ps.

Referenced by cg3d::testShape().

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int cg3d::Shape3d::getFaces

(

void

)

const [inline]

Definition at line 161 of file cg3d.h.

References nFaces.

Referenced by contains(), earlyExit(), cg3d::intersect(), and cg3d::testShape().

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int cg3d::Shape3d::getPoints

(

void

)

const [inline]

Definition at line 162 of file cg3d.h.

References nPoints.

Referenced by earlyExit(), and cg3d::testShape().

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int cg3d::Shape3d::getPointIndex

(

int

p

)

const [inline]

Get this point on the boundary of the shape.

The return value is suitable for passing to PointSet3d::getPoint.

Definition at line 168 of file cg3d.h.

References points.

Referenced by earlyExit(), getPoint(), and test_vol_mgc().

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const CkVector3d& cg3d::Shape3d::getPoint

(

int

p

)

const [inline]

Definition at line 169 of file cg3d.h.

References cg3d::PointSet3d::getPoint(), getPointIndex(), and ps.

Referenced by cg3d::testShape().

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int cg3d::Shape3d::getHalfspaceIndex

(

int

f

)

const [inline]

Extract the halfspace of face f of this shape.

The halfspace normal should point into the shape's interior. The return value is suitable for passing to PointSet3d::getHalfspace.

Definition at line 177 of file cg3d.h.

References halfspaces.

Referenced by contains(), earlyExit(), getHalfspace(), and cg3d::intersect().

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const CkHalfspace3d& cg3d::Shape3d::getHalfspace

(

int

f

)

const [inline]

Definition at line 178 of file cg3d.h.

References cg3d::PointSet3d::getHalfspace(), getHalfspaceIndex(), and ps.

Referenced by test_vol_planes(), and cg3d::testShape().

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virtual void cg3d::Shape3d::getFace	(	int	f,
		Planar3d &	face
	)			const [pure virtual]

Extract the boundary of face f of this shape.

Points in face should spiral right-handed around plane normal.

Implemented in cg3d::Tet3d.

Referenced by cg3d::intersect(), and cg3d::testShape().

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bool Shape3d::contains

(

const CkVector3d &

pt

)

const

Return true if this shape fully contains this point.

Works by enumerating the shape's halfspaces.

Works by enumerating the shape's halfspaces.

Definition at line 131 of file cg3d.C.

References getFaces(), getHalfspaceIndex(), cg3d::PointSet3d::isInside(), and ps.

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Field Documentation

PointSet3d* cg3d::Shape3d::ps [protected]

Definition at line 147 of file cg3d.h.

Referenced by contains(), earlyExit(), getHalfspace(), getPoint(), getSet(), and cg3d::Tet3d::Tet3d().

int cg3d::Shape3d::nFaces [private]

Definition at line 149 of file cg3d.h.

Referenced by getFaces().

int cg3d::Shape3d::nPoints [private]

Definition at line 149 of file cg3d.h.

Referenced by getPoints().

const int* cg3d::Shape3d::halfspaces [private]

Definition at line 150 of file cg3d.h.

Referenced by getHalfspaceIndex().

const int* cg3d::Shape3d::points [private]

Definition at line 151 of file cg3d.h.

Referenced by getPointIndex().

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

• libs/ck-libs/datatransfer/cg3d.h
• libs/ck-libs/datatransfer/cg3d.C