04-02-2009
Hmm.... I don't quite understand the logic how you determine the 'intersection'...
What does that mean:
Quote:
The result i´m looking for is intersection with A B C D F
so the answer here will be
7 8 9 2 3
So how do we do a intersection using to compare just the column 1 .
Can you try explaining again, please.
Last edited by vgersh99; 04-02-2009 at 11:23 AM..
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LEARN ABOUT DEBIAN
sbcylinder
SbCylinder(3) Coin SbCylinder(3)
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 floatr)
Construct and initialize an SbCylinder instance with the given axis a and radius r.
Member Function Documentation
void SbCylinder::setValue (const SbLine &a, const floatr)
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 floatr)
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
Generated automatically by Doxygen for Coin from the source code.
Version 3.1.3 Wed May 23 2012 SbCylinder(3)