Main Page   Modules   Class Hierarchy   Alphabetical List   Compound List   File List   Compound Members  

SbSphere Class Reference

The SbSphere class is a representation of a sphere. More...

#include <Inventor/SbLinear.h>

List of all members.

Public Methods

 SbSphere (void)
 SbSphere (const SbVec3f &center, const float radius)
void setValue (const SbVec3f &center, const float radius)
void setCenter (const SbVec3f &center)
void setRadius (const float radius)
const SbVec3fgetCenter (void) const
float getRadius (void) const
void circumscribe (const SbBox3f &box)
SbBool intersect (const SbLine &l, SbVec3f &intersection) const
SbBool intersect (const SbLine &l, SbVec3f &enter, SbVec3f &exit) const
SbBool pointInside (const SbVec3f &p) const
void print (FILE *file) const


Detailed Description

The SbSphere class is a representation of a sphere.

This class is used within many other classes in Coin. It contains the data neccessary to represent a sphere (a 3D point and a radius).

See also:
SbCylinder


Constructor & Destructor Documentation

SbSphere::SbSphere void
 

The default constructor does nothing. The center point and the radius will be uninitialized.

SbSphere::SbSphere const SbVec3f & center,
const float radius
 

Construct an SbSphere instance with the given center point and radius.


Member Function Documentation

void SbSphere::setValue const SbVec3f & center,
const float radius
 

Set the sphere's center point and radius.

See also:
getCenter(), getRadius().

void SbSphere::setCenter const SbVec3f & center
 

Set the sphere's center point.

See also:
setValue(), setRadius() and getCenter().

void SbSphere::setRadius const float radius
 

Set the sphere's radius.

See also:
setValue(), setCenter() and getRadius().

const SbVec3f & SbSphere::getCenter void const
 

Returns an SbVec3f with the sphere's center point.

See also:
setCenter(), getRadius().

float SbSphere::getRadius void const
 

Returns the sphere's radius.

See also:
setRadius(), getCenter().

void SbSphere::circumscribe const SbBox3f & box
 

Make the sphere exactly contain box, i.e. the sphere center point will be the same as that of the box, and the radius will be the distance from the box center point to any of the corners.

SbBool SbSphere::intersect const SbLine & l,
SbVec3f & intersection
const
 

Finds the intersection enter point for the given line l on the sphere.

If the line does not intersect the sphere, FALSE is returned.

SbBool SbSphere::intersect const SbLine & l,
SbVec3f & enter,
SbVec3f & exit
const
 

Find the intersection points of the ray l on the sphere and return these in enter and exit. If the ray just "grazes" the sphere, the enter and exit points have equal values.

If the ray does not intersect the sphere, FALSE is returned, otherwise we will return TRUE.

SbBool SbSphere::pointInside const SbVec3f & p const
 

Returns TRUE of the given point p lies within the sphere.

void SbSphere::print FILE * fp const
 

Dump the state of this object to the file stream. Only works in debug version of library, method does nothing in an optimized compile.


The documentation for this class was generated from the following files:
Generated at Tue Mar 5 03:31:31 2002 for Coin by doxygen1.2.9 written by Dimitri van Heesch, © 1997-2001