![]() |
http://www.sim.no http://www.coin3d.org |
The SbBox3d class is an abstraction for an axis aligned 3 dimensional box.This box abstraction class is used by other entities in the Coin library for data exchange and storage. It provides a representation of the defining corners of a box in 3D space, with the sides aligned with the 3 principal axes. More...
#include <Inventor/SbBox.h>
Public Member Functions | |
SbBox3d (void) | |
SbBox3d (double xmin, double ymin, double zmin, double xmax, double ymax, double zmax) | |
SbBox3d (const SbVec3d &minpoint, const SbVec3d &maxpoint) | |
SbBox3d (const SbBox3f &box) | |
SbBox3d (const SbBox3s &box) | |
SbBox3d (const SbBox3i32 &box) | |
SbBox3d & | setBounds (double xmin, double ymin, double zmin, double xmax, double ymax, double zmax) |
SbBox3d & | setBounds (const SbVec3d &minpoint, const SbVec3d &maxpoint) |
SbBox3d & | setBounds (const SbBox3f &box) |
SbBox3d & | setBounds (const SbBox3s &box) |
SbBox3d & | setBounds (const SbBox3i32 &box) |
void | getBounds (double &xmin, double &ymin, double &zmin, double &xmax, double &ymax, double &zmax) const |
void | getBounds (SbVec3d &minpoint, SbVec3d &maxpoint) const |
const SbVec3d & | getMin (void) const |
SbVec3d & | getMin (void) |
const SbVec3d & | getMax (void) const |
SbVec3d & | getMax (void) |
void | extendBy (const SbVec3d &pt) |
void | extendBy (const SbBox3d &box) |
void | transform (const SbDPMatrix &matrix) |
void | makeEmpty (void) |
SbBool | isEmpty (void) const |
SbBool | hasVolume (void) const |
double | getVolume (void) const |
SbBool | intersect (const SbVec3d &point) const |
SbBool | intersect (const SbBox3d &box) const |
SbVec3d | getClosestPoint (const SbVec3d &point) const |
SbBool | outside (const SbDPMatrix &mvp, int &cullbits) const |
SbVec3d | getCenter (void) const |
void | getOrigin (double &origoX, double &origoY, double &origoZ) const |
void | getSize (double &sizeX, double &sizeY, double &sizeZ) const |
void | getSpan (const SbVec3d &dir, double &dmin, double &dmax) const |
void | print (FILE *file) const |
Protected Attributes | |
SbVec3d | minpt |
SbVec3d | maxpt |
Related Functions | |
(Note that these are not member functions.) | |
int | operator== (const SbBox3d &b1, const SbBox3d &b2) |
int | operator!= (const SbBox3d &b1, const SbBox3d &b2) |
The SbBox3d class is an abstraction for an axis aligned 3 dimensional box.
This box abstraction class is used by other entities in the Coin library for data exchange and storage. It provides a representation of the defining corners of a box in 3D space, with the sides aligned with the 3 principal axes.
|
inline |
The default constructor makes an empty box.
|
inline |
Constructs a box with the given corners.
minx should be less than maxx, miny should be less than maxy and minz should be less than maxz if you want to make a valid box.
Constructs a box with the given corners.
The coordinates of min should be less than the coordinates of max if you want to make a valid box.
|
inlineexplicit |
Constructs a box with coordinates from box, converting the coordinates to floating point double precision values
|
inlineexplicit |
Constructs a box with coordinates from box, converting the coordinates to floating point double precision values
|
inlineexplicit |
Constructs a box with coordinates from box, converting the coordinates to floating point double precision values
|
inline |
Reset the boundaries of the box.
minx should be less than maxx, miny should be less than maxy and minz should be less than maxz if you want to make a valid box.
Returns reference to self.
Referenced by SbXfBox3d::extendBy(), extendBy(), and transform().
Reset the boundaries of the box with the given corners.
The coordinates of min should be less than the coordinates of max if you want to make a valid box.
Returns reference to self.
Reset the boundaries to the boundaries of the given box.
Returns reference to self.
References SbBox3f::getMax(), SbBox3f::getMin(), SbBox3f::isEmpty(), makeEmpty(), and SbVec3d::setValue().
Reset the boundaries to the boundaries of the given box.
Returns reference to self.
References SbBox3s::getMax(), SbBox3s::getMin(), SbBox3s::isEmpty(), makeEmpty(), and SbVec3d::setValue().
Reset the boundaries to the boundaries of the given box.
Returns reference to self.
References SbBox3i32::getMax(), SbBox3i32::getMin(), SbBox3i32::isEmpty(), makeEmpty(), and SbVec3d::setValue().
|
inline |
Returns the box corner points.
|
inline |
Returns the minimum point. This should usually be the lower left corner point of the box.
Referenced by SbXfBox3d::extendBy(), SbXfBox3d::getTransform(), SbXfBox3d::intersect(), operator==(), SbXfBox3d::project(), SbBox3s::setBounds(), SbBox3f::setBounds(), and SbBox3i32::setBounds().
|
inline |
Returns a modifiable reference the minimum point.
|
inline |
Returns the maximum point. This should usually be the upper right corner point of the box.
Referenced by SbXfBox3d::extendBy(), SbXfBox3d::getTransform(), SbXfBox3d::intersect(), operator==(), SbXfBox3d::project(), SbBox3s::setBounds(), SbBox3f::setBounds(), and SbBox3i32::setBounds().
|
inline |
Returns a modifiable reference the maximum point.
void SbBox3d::extendBy | ( | const SbVec3d & | point | ) |
Extend the boundaries of the box by the given point, i.e. make the point fit inside the box if it isn't already so.
References isEmpty(), setBounds(), and SbVec3d::setValue().
Referenced by SbXfBox3d::extendBy(), extendBy(), SbXfBox3d::getTransform(), SbXfBox3d::intersect(), and transform().
void SbBox3d::extendBy | ( | const SbBox3d & | box | ) |
Extend the boundaries of the box by the given box parameter. This is equal to calling extendBy() twice with the corner points.
References extendBy(), isEmpty(), and SoDebugError::postWarning().
void SbBox3d::transform | ( | const SbDPMatrix & | matrix | ) |
Transform the box by the matrix, and change its boundaries to contain the transformed box.
Doesn't touch illegal/empty boxes.
References extendBy(), isEmpty(), SbDPMatrix::multVecMatrix(), SoDebugError::postWarning(), setBounds(), and SbVec3d::setValue().
Referenced by SbXfBox3d::getTransform(), and SbXfBox3d::project().
void SbBox3d::makeEmpty | ( | void | ) |
Marks this as an empty box.
References SbVec3d::setValue().
Referenced by setBounds().
|
inline |
Check if this has been marked as an empty box.
Referenced by SbXfBox3d::extendBy(), extendBy(), SbXfBox3d::intersect(), SbXfBox3d::project(), SbBox3s::setBounds(), SbBox3f::setBounds(), SbBox3i32::setBounds(), and transform().
|
inline |
Check if the box has been correctly specified and by that virtue has volume.
Referenced by SbXfBox3d::getVolume().
|
inline |
Check if the box has "positive" volume, i.e. the lower left corner is actually lower and more left than the maximum point.
Referenced by SbXfBox3d::extendBy(), SbXfBox3d::getTransform(), and SbXfBox3d::getVolume().
SbBool SbBox3d::intersect | ( | const SbVec3d & | point | ) | const |
Check if the given point lies within the boundaries of this box.
Referenced by SbXfBox3d::getTransform(), and SbXfBox3d::intersect().
SbBool SbBox3d::intersect | ( | const SbBox3d & | box | ) | const |
Check if the given box lies wholly or partly within the boundaries of this box.
Return the point on the box closest to the given point.
References getCenter().
SbBool SbBox3d::outside | ( | const SbDPMatrix & | mvp, |
int & | cullbits | ||
) | const |
Check if the box is outside the view volume defined by the mvp matrix. Sets cullbits according to which planes we're inside or outside. Bit 0 (0x1) is cleared when box is completely inside left and right clipping planes. Bit 1 (0x2) is cleared when box is inside top and bottom clipping planes. Bit 2 (0x4) is cleared when box is inside near and far clipping planes.
Returns TRUE
if box is completely outside one of the clipping planes. FALSE
otherwise.
References SbDPMatrix::multVecMatrix().
|
inline |
Returns the center point of the box.
Referenced by SbXfBox3d::getCenter(), getClosestPoint(), and SbXfBox3d::getTransform().
|
inline |
Returns the coordinates of the box origin (i.e. the lower left corner).
|
inline |
Returns width, height and depth of box.
void SbBox3d::getSpan | ( | const SbVec3d & | dir, |
double & | dmin, | ||
double & | dmax | ||
) | const |
Find the span of the box in the given direction (i.e. how much room in the given direction the box needs). The distance is returned as the minimum and maximum distance from origo to the closest and furthest plane defined by the direction vector and each of the box' corners. The difference between these values gives the span.
References SbVec3d::dot(), SbVec3d::normalize(), SoDebugError::postWarning(), and SbVec3d::setValue().
Referenced by SbXfBox3d::getSpan(), and SbXfBox3d::getTransform().
void SbBox3d::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.
References getBounds(), and SbVec3d::print().
Check b1 and b2 for equality.
References getMax(), and getMin().
Referenced by SbXfBox3d::getTransform(), and SbXfBox3d::project().
Check b1 and b2 for inequality.
Referenced by SbXfBox3d::getTransform(), and SbXfBox3d::project().
Copyright © 1998-2007 by Systems in Motion AS. All rights reserved.
Generated on Fri Feb 17 2017 for Coin by Doxygen. 1.8.13