NurbsSphere Class Reference

#include <NurbsSphere.h>

Inheritance diagram for NurbsSphere:


Public Member Functions
	NurbsSphere (const SDS &ss, AutoPtr< Intersector > *it, float x, float y, float z, float r)
virtual void	rayIntersection (PointEnv *pPE, int mask, const Vector3 &origin, const Vector3 &direction, float maxD=MAXFLOAT)
virtual bool	mapToUV (const Vector3 &v, Vector2 &uv)
virtual void	randomSample (int mask, PointEnv &pe, double *pdf)
virtual bool	randomDirection (const Vector3 &pov, Vector3 &dir, double *pdf)
virtual Interval	extent (const Vector3 &direction) const
Interval	extent (float x, float y, float z) const
virtual Vector3	centroid (void) const
virtual double	radius (void) const
virtual double	radius (const Vector3 &centroid) const
virtual Geometry *	clone (const Matrix4 *pTrMat) const
Geometry *	clone (void) const
virtual bool	separation (Geometry &geom, Vector3 *pDir)
virtual double	distance (const Geometry &geom, Vector3 *pDir)
virtual void	dump (const char intent, const char tab)
void	insideOut (bool b)
Mesh *	mesh (int density=0) const
virtual void	__debug ()
Static Public Attributes
static const float	EPS = 1e-03
	epsilon variation (tolerance) of zero
Protected Member Functions
void	_triangulate_surface (const ON_NurbsSurface &, const SDS &, AutoPtr< Intersector > *)
virtual Mesh *	_mesh (int) const
virtual void	_duplicate_attributes (const Geometry &src)
virtual void	_rotateX (float)
virtual void	_rotateY (float)
virtual void	_rotateZ (float)
virtual void	_rotate (float, const Vector3 &)
virtual void	_rotate (const Matrix3 &)
virtual void	_translate (float, float, float)
void	_translate (const Vector3 &v)
virtual void	_transform (const Matrix4 &)
virtual void	_scale (float)
Protected Attributes
Surface *	_pSurface
	triangulated surface
bool	_insideOut

Detailed Description

Sphere represented by NURBS surface.

Definition at line 15 of file NurbsSphere.h.

Constructor & Destructor Documentation

NurbsSphere ( const SDS & ss,

AutoPtr< Intersector > * it,

float x,

float y,

float z,

float r

)

Constructor.

Parameters:

ss space subdivision structure (spatial data structure)

it ray intersector

x x coorinate of the center

y y coorinate of the center

z z coorinate of the center

r speher radius

Definition at line 5 of file NurbsSphere.cc.
References NurbsSurface::_triangulate_surface().

Member Function Documentation

virtual void __debug ( void ) [inline, virtual, inherited]

Reimplemented in _Surface, FDH, Polygon, Sphere, and Surface.
Definition at line 211 of file Geometry.h.
Referenced by BVH::__debug().

void _duplicate_attributes ( const Geometry & src ) [protected, virtual, inherited]

Reimplemented from Geometry.
Definition at line 135 of file NurbsSurface.cc.
References Geometry::_duplicate_attributes(), and NurbsSurface::_pSurface.
Referenced by NurbsSurface::clone().

Mesh * _mesh ( int ) const [protected, virtual, inherited]

Implements Geometry.
Definition at line 126 of file NurbsSurface.cc.
References NurbsSurface::_pSurface, and Geometry::mesh().

void _rotate ( const Matrix3 & ) [protected, virtual, inherited]

Implements Geometry.
Definition at line 165 of file NurbsSurface.cc.
References NurbsSurface::_pSurface, and Surface::_rotate().

void _rotate ( float ,

const Vector3 &

) [protected, virtual, inherited]

Implements Geometry.
Definition at line 160 of file NurbsSurface.cc.
References NurbsSurface::_pSurface, and Surface::_rotate().

void _rotateX ( float ) [protected, virtual, inherited]

Implements Geometry.
Definition at line 145 of file NurbsSurface.cc.
References NurbsSurface::_pSurface, and Surface::_rotateX().

void _rotateY ( float ) [protected, virtual, inherited]

Implements Geometry.
Definition at line 150 of file NurbsSurface.cc.
References NurbsSurface::_pSurface, and Surface::_rotateY().

void _rotateZ ( float ) [protected, virtual, inherited]

Implements Geometry.
Definition at line 155 of file NurbsSurface.cc.
References NurbsSurface::_pSurface, and Surface::_rotateZ().

void _scale ( float ) [protected, virtual, inherited]

Implements Geometry.
Definition at line 180 of file NurbsSurface.cc.
References NurbsSurface::_pSurface, and Surface::_scale().

void _transform ( const Matrix4 & ) [protected, virtual, inherited]

Implements Geometry.
Definition at line 175 of file NurbsSurface.cc.
References NurbsSurface::_pSurface, and Surface::_transform().
Referenced by NurbsSurface::clone().

void _translate ( const Vector3 & v ) [inline, protected, inherited]

Definition at line 38 of file Geometry.h.

void _translate ( float ,

float ,

float

) [protected, virtual, inherited]

Implements Geometry.
Definition at line 170 of file NurbsSurface.cc.
References NurbsSurface::_pSurface, and Surface::_translate().

void _triangulate_surface ( const ON_NurbsSurface & ,

const SDS & ,

AutoPtr< Intersector > *

) [protected, inherited]

Definition at line 6 of file NurbsSurface.cc.
Referenced by NurbsSphere::NurbsSphere(), and NurbsSurface::NurbsSurface().

Vector3 centroid ( void ) const [virtual, inherited]

Returns:
centroid (point of gravity) of the geometry

Implements Geometry.
Definition at line 250 of file NurbsSurface.cc.
References NurbsSurface::_pSurface, and Surface::centroid().

Geometry* clone ( void ) const [inline, inherited]

Duplicates geometry

Returns:
duplicate (clone)

Reimplemented in _Surface, and OSGPolygon.
Definition at line 155 of file Geometry.h.
Referenced by BVH::__get_edges(), BVH::__get_meshes(), ObjsInAreaExplorer::_accept_new_transformation(), SphereTree::_enlarge_bv(), FDHTree::_enlarge_bv(), BVExplorer::_iterate(), BVDistRot::BVDistRot(), and ObjsInAreaExplorer::ObjsInAreaExplorer().

Geometry * clone ( const Matrix4 * pTrMat ) const [virtual, inherited]

Duplicates and transforms geometry

Parameters:

pTrMat transformation matrix of the clone or NULL

Returns:
duplicate (clone)

Implements Geometry.
Definition at line 242 of file NurbsSurface.cc.
References NurbsSurface::_duplicate_attributes(), NurbsSurface::_transform(), and NurbsSurface::NurbsSurface().

virtual double distance ( const Geometry & geom,

Vector3 * pDir

) [inline, virtual, inherited]

Computes approximate distance between this and given geometries (lower bound of distance)

Parameters:

geom geometry to check

pDir if presented then is set to normalized measured direction (vector of minimal distance)

Returns:
lower bound of distance, negative value indicates penetration, positive value indicates separation, zero indicates touch

Implements Geometry.
Definition at line 123 of file NurbsSurface.h.

void dump ( const char * intent,

const char * tab

) [virtual, inherited]

Writes information about this geometry to std. out.

Parameters:

intent free space before each line

tab free space added to intent inside description of this class

Implements Geometry.
Definition at line 268 of file NurbsSurface.cc.
References NurbsSurface::_pSurface, and Surface::dump().

Interval extent ( float x,

float y,

float z

) const [inline, inherited]

Returns extent occupied by the geometry in given direction

Parameters:

x direction direction of extent - x coordinate

y direction direction of extent - y coordinate

z direction direction of extent - z coordinate

Returns:
extent of occupied space

Definition at line 124 of file Geometry.h.

Interval extent ( const Vector3 & direction ) const [virtual, inherited]

Returns extent occupied by the geometry in given direction

Parameters:

direction direction of extent

Returns:
extent of occupied space

Implements Geometry.
Definition at line 231 of file NurbsSurface.cc.
References NurbsSurface::_pSurface, Surface::extent(), Interval::max, MAXFLOAT, and Interval::min.

void insideOut ( bool b ) [inline, inherited]

Inverts facet normals (turns the object inside-out)

Parameters:

b determines wehether to turn the geometry inside-out

Definition at line 56 of file Geometry.h.

bool mapToUV ( const Vector3 & v,

Vector2 & uv

) [virtual, inherited]

Maps 3D point from surface to the UV surface representation

Parameters:

v 3D point in the world coordinates

uv UV coordinates (relative to the surface)

Returns:
true on success, false otherwise (mainly if the 3D point does not lie on the surface)

Implements Geometry.
Definition at line 225 of file NurbsSurface.cc.

Mesh * mesh ( int density = 0 ) const [inherited]

Returns polygonal mesh computed from this geometry

Parameters:

density mesh density

Returns:
polygonal mesh

Definition at line 24 of file Geometry.cc.
References Geometry::_insideOut, Geometry::_mesh(), and Mesh::turnInsideOut().
Referenced by BVH::__get_edges(), BVH::__get_meshes(), NurbsSurface::_mesh(), and POVRayExporter::_process_leaf().

double radius ( const Vector3 & centroid ) const [virtual, inherited]

Returns radius of minimal packing sphere having given center

Parameters:

centroid center of packing sphere

Returns:
minimal packing radius

Implements Geometry.
Definition at line 262 of file NurbsSurface.cc.
References NurbsSurface::_pSurface, MAXDOUBLE, and Surface::radius().

double radius ( void ) const [virtual, inherited]

Returns radius of minimal packing sphere with center in the ceontroid of the geometry

Parameters:

centroid center of packing sphere

Returns:
minimal packing radius

Reimplemented from Geometry.
Definition at line 256 of file NurbsSurface.cc.
References NurbsSurface::_pSurface, MAXDOUBLE, and Surface::radius().

virtual bool randomDirection ( const Vector3 & pov,

Vector3 & dir,

double * pdf

) [inline, virtual, inherited]

Computes random direction towards the surface in accord to the point of view.

Parameters:

pov point of view

dir computed random direction

pdf if present then it is set to the value of the Probability Density Function of the random point

Implements Geometry.
Definition at line 101 of file NurbsSurface.h.
References NurbsSurface::_pSurface, and Surface::randomDirection().

virtual void randomSample ( int mask,

PointEnv & pe,

double * pdf

) [inline, virtual, inherited]

Computes random point on the surface

Parameters:

mask bitmask determining what to compute, see PointEnv.h

pe information about the computed random point on surface

pdf if present then it is set to the value of the Probability Density Function of the random point

Implements Geometry.
Definition at line 96 of file NurbsSurface.h.
References NurbsSurface::_pSurface, ENV_HAVE_NOTHING, PointEnv::mask, and Surface::randomSample().

void rayIntersection ( PointEnv * pPE,

int mask,

const Vector3 & origin,

const Vector3 & direction,

float maxD = MAXFLOAT

) [virtual, inherited]

Computes point of intersection of ray with this geometry

Parameters:

pPE structure in which the information about intersection point is stored; must be defined (not NULL)

mask bitmask determining what to compute, see PointEnv.h

origin ray's origin

direction normalized ray's direction

maxD maximal interesting distance; if the point of intersection can't be closer than this distance then the computation stops (object is too far away)

Implements Geometry.
Definition at line 213 of file NurbsSurface.cc.
References NurbsSurface::_pSurface, ENV_HAVE_NOTHING, and Surface::rayIntersection().

virtual bool separation ( Geometry & geom,

Vector3 * pDir

) [inline, virtual, inherited]

Checks if there is separation between this and given geometries

Parameters:

geom geometry to check

pDir if presented then is set to normalized direction to found separation (gap)

Returns:
true if thre is separation (gap), false otherwise

Implements Geometry.
Definition at line 119 of file NurbsSurface.h.

Member Data Documentation

bool _insideOut [protected, inherited]

Definition at line 23 of file Geometry.h.
Referenced by Geometry::_duplicate_attributes(), and Geometry::mesh().

Surface* _pSurface [protected, inherited]

triangulated surface

Definition at line 27 of file NurbsSurface.h.
Referenced by NurbsSurface::_duplicate_attributes(), NurbsSurface::_mesh(), NurbsSurface::_rotate(), NurbsSurface::_rotateX(), NurbsSurface::_rotateY(), NurbsSurface::_rotateZ(), NurbsSurface::_scale(), NurbsSurface::_transform(), NurbsSurface::_translate(), NurbsSurface::centroid(), NurbsSurface::dump(), NurbsSurface::extent(), NurbsSurface::radius(), NurbsSurface::randomDirection(), NurbsSurface::randomSample(), NurbsSurface::rayIntersection(), and NurbsSurface::~NurbsSurface().

const float EPS = 1e-03 [static, inherited]

epsilon variation (tolerance) of zero

Definition at line 20 of file Geometry.h.
Referenced by FDH::_cut_line(), Sphere::_duplicate_attributes(), FDH::_get_corners(), FDH::_mesh(), Sphere::_scale(), Polygon::_triTriCollision(), Sphere::rayIntersection(), Polygon::rayIntersection(), Point3D::rayIntersection(), Hemisphere::rayIntersection(), Sphere::setRadius(), and Sphere::Sphere().

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

esg/include/esg/geometry/NurbsSphere.h
esg/src/NurbsSphere.cc

Generated on Wed Jun 28 12:24:34 2006 for esg by

1.4.6

NurbsSphere Class Reference

Public Member Functions

Static Public Attributes

Protected Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation