NAME
SbCylinder -
The SbCylinder class is a representation of a cylinder.
This class is used within other classes in Coin. It contains data to
represent a cylinder by an axis and a radius. The cylinder has no
length/height value, which means it is treated as of infinite length.
SYNOPSIS
#include <Inventor/SbLinear.h>
Public Member Functions
SbCylinder (void)
SbCylinder (const SbLine &a, const float r)
void setValue (const SbLine &a, const float r)
void setAxis (const SbLine &a)
void setRadius (const float r)
const SbLine & getAxis (void) const
float getRadius (void) const
SbBool intersect (const SbLine &l, SbVec3f &intersection) const
SbBool intersect (const SbLine &l, SbVec3f &enter, SbVec3f &exit) const
void print (FILE *file) const
Detailed Description
The SbCylinder class is a representation of a cylinder.
This class is used within other classes in Coin. It contains data to
represent a cylinder by an axis and a radius. The cylinder has no
length/height value, which means it is treated as of infinite length.
See also:
SbLine, SbSphere
Constructor & Destructor Documentation
SbCylinder::SbCylinder (void) The default constructor will make a cylinder
of radius 1, center axis going through origo in the parallel direction
of the positive y-axis.
SbCylinder::SbCylinder (const SbLine & a, const float r) Construct and
initialize an SbCylinder instance with the given axis a and radius r.
Member Function Documentation
void SbCylinder::setValue (const SbLine & a, const float r) Set the axis
and radius of the cylinder.
See also:
getAxis(), getRadius().
void SbCylinder::setAxis (const SbLine & a) Set the center axis of the
cylinder.
See also:
setRadius(), getAxis().
void SbCylinder::setRadius (const float r) Set the radius of the cylinder.
See also:
setAxis(), getRadius().
const SbLine & SbCylinder::getAxis (void) const Return the line which is
the center axis of the cylinder.
See also:
setAxis(), getRadius().
float SbCylinder::getRadius (void) const Return radius of cylinder.
See also:
setRadius(), getAxis().
SbBool SbCylinder::intersect (const SbLine & l, SbVec3f & intersection)
const Finds the intersection point of the ray l on the cylinder where
the ray enters, and return this point in intersection.
If the ray does not intersect the cylinder, FALSE is returned,
otherwise we will return TRUE.
SbBool SbCylinder::intersect (const SbLine & l, SbVec3f & enter, SbVec3f &
exit) const Find the intersection points of the ray l on the cylinder
and return these in enter and exit. If the ray just ’grazes’ the
cylinder, the enter and exit points have equal values.
If the ray does not intersect the cylinder, FALSE is returned,
otherwise we will return TRUE.
void SbCylinder::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.
Author
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