3D box class. More...
#include <Inventor/SbBox.h>
Public Member Functions | |
SbBox3s () | |
SbBox3s (short xmin, short ymin, short zmin, short xmax, short ymax, short zmax) | |
SbBox3s (const SbVec3s &_min, const SbVec3s &_max) | |
SbBox3s (const SbBox3i32 &box) | |
~SbBox3s () | |
const SbVec3s & | getMin () const |
const SbVec3s & | getMax () const |
SbVec3s & | getMin () |
SbVec3s & | getMax () |
SbVec3f | getCenter () const |
void | extendBy (const SbVec3f &pt) |
void | extendBy (const SbBox3s &bb) |
SbBool | intersect (const SbVec3f &pt) const |
SbBool | intersect (const SbBox3s &bb) const |
SbBox3s | intersection (const SbBox3s &box) const |
SbBool | contains (const SbBox3s &bb) const |
SbBool | outside (const SbMatrix &MVP, int &cullBits) const |
void | setBounds (short xmin, short ymin, short zmin, short xmax, short ymax, short zmax) |
void | setBounds (const SbVec3s &_min, const SbVec3s &_max) |
void | getBounds (short &xmin, short &ymin, short &zmin, short &xmax, short &ymax, short &zmax) const |
void | getBounds (SbVec3s &_min, SbVec3s &_max) const |
SbVec3f | getClosestPoint (const SbVec3f &point) const |
void | getOrigin (short &originX, short &originY, short &originZ) const |
void | getSize (short &sizeX, short &sizeY, short &sizeZ) const |
void | makeEmpty () |
SbBool | isEmpty () const |
SbBool | hasVolume () const |
void | getSpan (const SbVec3f &direction, float &dMin, float &dMax) const |
void | transform (const SbMatrix &m) |
float | getVolume () const |
SbBox3s | operator= (const SbBox3i32 &box) |
Friends | |
int | operator== (const SbBox3s &b1, const SbBox3s &b2) |
int | operator!= (const SbBox3s &b1, const SbBox3s &b2) |
3D box which has planes parallel to the major axes and is specified by two points on a diagonal. This class is part of the standard Open Inventor datatype classes and is used as input and output to geometry operations (see SoGetBoundingBoxAction).
SbXfBox3f, SbBox2f, SbBox2s, SbVec3s, SbVec2f, SbVec2s, SbMatrix, SoGetBoundingBoxAction
SbBox3s::SbBox3s | ( | ) | [inline] |
Constructor for a 3D short box.
The box is initially empty.
SbBox3s::SbBox3s | ( | short | xmin, | |
short | ymin, | |||
short | zmin, | |||
short | xmax, | |||
short | ymax, | |||
short | zmax | |||
) | [inline] |
Constructor for a 3D short box.
xmin , ymin , zmin , xmax , ymax and zmax are the bounds of the box.
Constructor for a 3D short box.
m_min and m_max are the corners of the diagonal that define the box.
SbBox3s::SbBox3s | ( | const SbBox3i32 & | box | ) |
Constructor given an SbBox3i32 (adapter).
Note possible loss of data.
SbBox3s::~SbBox3s | ( | ) | [inline] |
Destructor.
Returns TRUE if the specified box is fully contained inside this box.
void SbBox3s::extendBy | ( | const SbBox3s & | bb | ) |
Extends this box (if necessary) to contain the specified box.
void SbBox3s::extendBy | ( | const SbVec3f & | pt | ) |
Extends this box (if necessary) to contain the specified point.
Gets the corners of the box.
void SbBox3s::getBounds | ( | short & | xmin, | |
short & | ymin, | |||
short & | zmin, | |||
short & | xmax, | |||
short & | ymax, | |||
short & | zmax | |||
) | const [inline] |
Gets the corners of the box.
SbVec3f SbBox3s::getCenter | ( | ) | const |
Returns the center of the box.
Returns the closest point on the box to the given point.
(Returns the point on the center of the Z face if passed the center.)
SbVec3s& SbBox3s::getMax | ( | ) | [inline] |
Returns the maximum point of the box.
The maximum point is the corner of the box with the highest X, Y, and Z values.
const SbVec3s& SbBox3s::getMax | ( | ) | const [inline] |
Returns the maximum point of the box.
The maximum point is the corner of the box with the highest X, Y, and Z values.
SbVec3s& SbBox3s::getMin | ( | ) | [inline] |
Returns the minimum point of the box.
The minimum point is the corner of the box with the lowest X, Y, and Z values.
const SbVec3s& SbBox3s::getMin | ( | ) | const [inline] |
Returns the minimum point of the box.
The minimum point is the corner of the box with the lowest X, Y, and Z values.
void SbBox3s::getOrigin | ( | short & | originX, | |
short & | originY, | |||
short & | originZ | |||
) | const [inline] |
Gets box origin which is the same as the minimum corner of the box.
void SbBox3s::getSize | ( | short & | sizeX, | |
short & | sizeY, | |||
short & | sizeZ | |||
) | const [inline] |
Gets box size.
void SbBox3s::getSpan | ( | const SbVec3f & | direction, | |
float & | dMin, | |||
float & | dMax | |||
) | const |
Finds the span of a box along a specified direction.
The span is the total distance the box occupies along a given direction. The total distance is returned in the form of a minimum and maximum distance from the origin of each of the corners of the box along the given direction. The difference between these two values is the span.
float SbBox3s::getVolume | ( | ) | const |
Returns the volume of the box.
SbBool SbBox3s::hasVolume | ( | ) | const [inline] |
Returns TRUE if all three dimensions of the box have positive size, and FALSE otherwise.
Returns TRUE if the specified box intersects this box.
Returns TRUE if the specified point intersects this box.
Returns the intersection of the specified box with this box.
Returned box is empty if there is no intersection.
SbBool SbBox3s::isEmpty | ( | ) | const [inline] |
Returns TRUE if the box is empty, and FALSE otherwise. Note: Setting the box to all zeros does not make it "empty". Use the makeEmpty() method. (This method only returns true if the maximum X value is less than the minimum X value.)
void SbBox3s::makeEmpty | ( | ) |
Makes an empty box.
Assignment operator given an SbBox3i32 (adapter).
Note possible loss of data.
Returns TRUE if bounding box is completely outside the view-volume defined by the model+view+projection matrix given.
"cullBits" keeps track of which view-volume clipping planes the box is completely inside of; if a 'parent' bounding box of this bounding box was found to be completely inside the left/right clipping planes, the low bit of cullBits will be set to zero, and this routine will not test this box against those planes. When cullBits is zero, it is a waste of time to call this function! Before calling this the first time, set cullBits to 7 (SoGLRenderAction and SoSeparator will handle this automatically for render culling).
Sets the corners of the box.
void SbBox3s::setBounds | ( | short | xmin, | |
short | ymin, | |||
short | zmin, | |||
short | xmax, | |||
short | ymax, | |||
short | zmax | |||
) | [inline] |
Sets the corners of the box.
void SbBox3s::transform | ( | const SbMatrix & | m | ) |
Transforms box by matrix, enlarging box to contain result.