SbDPPlane - Online Linux Manual Page
Section : 3
Updated : Mon Jan 25 2021
Source : Version 4.0.0
Note : Coin
NAMESbDPPlane − The SbDPPlane class represents a plane in 3D space.
SYNOPSIS
#include <Inventor/SbLinear.h>
Public Member FunctionsSbDPPlane (void)
SbDPPlane (const SbVec3d &normal, const double D)
SbDPPlane (const SbVec3d &p0, const SbVec3d &p1, const SbVec3d &p2)
SbDPPlane (const SbVec3d &normal, const SbVec3d &point)
void offset (const double d)
SbBool intersect (const SbDPLine &l, SbVec3d &intersection) const
void transform (const SbDPMatrix &matrix)
SbBool isInHalfSpace (const SbVec3d &point) const
double getDistance (const SbVec3d &point) const
const SbVec3d & getNormal (void) const
double getDistanceFromOrigin (void) const
void print (FILE *file) const
SbBool intersect (const SbDPPlane &pl, SbDPLine &line) const
Related Functions(Note that these are not member functions.) int operator== (const SbDPPlane &p1, const SbDPPlane &p2)
int operator!= (const SbDPPlane &p1, const SbDPPlane &p2)
Detailed DescriptionThe SbDPPlane class represents a plane in 3D space. SbDPPlane is used by many other classes in Coin. It provides a way of representing a plane, specified by a plane normal vector and a distance from the origin of the coordinate system. Be aware that this class is an extension for Coin, and it is not available in the original SGI Open Inventor v2.1 API.
Since Coin 2.0
Constructor & Destructor Documentation
SbDPPlane::SbDPPlane (void)An SbDPPlane instantiated with the default constructor will be uninitialized.
SbDPPlane::SbDPPlane (const SbVec3d & normalref, const double D)Construct an SbDPPlane instance with a normal pointing in the given direction and the given shortest distance from the origin of the coordinate system to a point in the plane. normal must not be a null vector.
SbDPPlane::SbDPPlane (const SbVec3d & p0, const SbVec3d & p1, const SbVec3d & p2)Construct an SbDPPlane with three points laying in the plane. Make sure p0, p1 and p2 are actually three distinct points when using this constructor.
SbDPPlane::SbDPPlane (const SbVec3d & normalref, const SbVec3d & point)Construct an SbDPPlane from a normal and a point laying in the plane. normal must not be a null vector.
Member Function Documentation
void SbDPPlane::offset (const double d)Add the given offset d to the plane distance from the origin.
SbBool SbDPPlane::intersect (const SbDPLine & l, SbVec3d & intersection) constFind the point on given line l intersecting the plane and return it in intersection. If the line is parallel to the plane, we return FALSE, otherwise TRUE. Do not pass an invalid line for the l parameter (i.e. with a null direction vector).
void SbDPPlane::transform (const SbDPMatrix & matrix)Transform the plane by matrix. See also offset()
SbBool SbDPPlane::isInHalfSpace (const SbVec3d & point) constCheck if the given point lies in the halfspace of the plane which the plane normal vector is pointing.
double SbDPPlane::getDistance (const SbVec3d & point) constReturn the distance from point to plane. Positive distance means the point is in the plane's half space. This method is an extension specific to Coin versus the original SGI Inventor API.
const SbVec3d & SbDPPlane::getNormal (void) constReturn the plane's normal vector, which indicates which direction the plane is oriented. See also getDistanceFromOrigin().
double SbDPPlane::getDistanceFromOrigin (void) constReturn distance from origin of coordinate system to the point in the plane which is closest to the origin. See also getNormal().
void SbDPPlane::print (FILE * fp) constDump the state of this object to the file stream. Only works in debug version of library, method does nothing in an optimized build.
SbBool SbDPPlane::intersect (const SbDPPlane & pl, SbDPLine & line) constIntersect this plane with pl, and return the resulting line in line. Returns TRUE if an intersection line can be found, and FALSE if the planes are parallel. This function is an extension for Coin, and it is not available in the original SGI Open Inventor v2.1 API.
Since Coin 2.0
Friends And Related Function Documentation
int operator== (const SbDPPlane & p1, const SbDPPlane & p2) [related]Check the two given planes for equality.
int operator!= (const SbDPPlane & p1, const SbDPPlane & p2) [related]Check the two given planes for unequality.
AuthorGenerated automatically by Doxygen for Coin from the source code. 0
Johanes Gumabo
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