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SbOctTree(3) Coin SbOctTree(3)
NAME
SbOctTree -
The SbOctTree class defines a generic oct tree for fast geometry searches.
Be aware that this class is an extension for Coin, and it is not available in the original SGI Open Inventor v2.1 API.
SYNOPSIS
#include <Inventor/SbOctTree.h>
Public Member Functions
SbOctTree (const SbBox3f &bbox, const SbOctTreeFuncs &itemfuncs, const int maxitemspernode=64)
~SbOctTree ()
void addItem (void *const item)
void removeItem (void *const item)
void findItems (const SbVec3f &pos, SbList< void * > &destarray, const SbBool removeduplicates=TRUE) const
void findItems (const SbBox3f &box, SbList< void * > &destarray, const SbBool removeduplicates=TRUE) const
void findItems (const SbSphere &sphere, SbList< void * > &destarray, const SbBool removeduplicates=TRUE) const
void findItems (const SbPlane *const planes, const int numplanes, SbList< void * > &destarray, const SbBool removeduplicates=TRUE) const
const SbBox3f & getBoundingBox (void) const
void clear (void)
void debugTree (FILE *fp)
Detailed Description
The SbOctTree class defines a generic oct tree for fast geometry searches.
Be aware that this class is an extension for Coin, and it is not available in the original SGI Open Inventor v2.1 API.
Constructor & Destructor Documentation
SbOctTree::SbOctTree (const SbBox3f &bbox, const SbOctTreeFuncs &itemfuncs, const intmaxitems = 64)
Constructor.
SbOctTree::~SbOctTree ()
Destructor.
Member Function Documentation
void SbOctTree::addItem (void *constitem)
Adds an item to this oct tree.
void SbOctTree::removeItem (void *constitem)
Removes the item from the octtree. The octtree will not be modified/simplified even when all items are removed.
void SbOctTree::findItems (const SbVec3f &pos, SbList< void * > &destarray, const SbBoolremoveduplicates = TRUE) const
Finds all items which contains the point pos. Items are returned in destarray.
If removeduplicates is TRUE (the default), destarray will not contain duplicate items. This is not an optimized process, so if you're
looking for speed you should set this to FALSE and do your own postprocessing of the array of returned items.
Note that if the Coin library has been built as a DLL under Microsoft Windows and you use this method from application code, you must make
sure that both the Coin DLL and the application executable is using the same instance of a C Run-Time (CRT) library. Otherwise, you will
get memory heap corruption upon deallocating the returned instances, eventually leading to mysterious crashes.
void SbOctTree::findItems (const SbBox3f &box, SbList< void * > &destarray, const SbBoolremoveduplicates = TRUE) const
Finds all items inside box. Items are returned in destarray.
If removeduplicates is TRUE (the default), destarray will not contain duplicate items. This is not an optimized process, so if you're
looking for speed you should set this to FALSE and do your own postprocessing of the array of returned items.
Note that if the Coin library has been built as a DLL under Microsoft Windows and you use this method from application code, you must make
sure that both the Coin DLL and the application executable is using the same instance of a C Run-Time (CRT) library. Otherwise, you will
get memory heap corruption upon deallocating the returned instances, eventually leading to mysterious crashes.
void SbOctTree::findItems (const SbSphere &sphere, SbList< void * > &destarray, const SbBoolremoveduplicates = TRUE) const
Finds all items inside sphere. Items are returned in destarray.
If removeduplicates is TRUE (the default), destarray will not contain duplicate items. This is not an optimized process, so if you're
looking for speed you should set this to FALSE and do your own postprocessing of the array of returned items.
Note that if the Coin library has been built as a DLL under Microsoft Windows and you use this method from application code, you must make
sure that both the Coin DLL and the application executable is using the same instance of a C Run-Time (CRT) library. Otherwise, you will
get memory heap corruption upon deallocating the returned instances, eventually leading to mysterious crashes.
void SbOctTree::findItems (const SbPlane *constplanes, const intnumplanes, SbList< void * > &destarray, const SbBoolremoveduplicates = TRUE)
const
Finds all items inside planes. The method SbPlane::isInHalfSpace() should be used, and only items which are (partly) inside all planes are
returned. Items are returned in destarray.
If removeduplicates is TRUE (the default), destarray will not contain duplicate items. This is not an optimized process, so if you're
looking for speed you should set this to FALSE and do your own postprocessing of the array of returned items.
Note that if the Coin library has been built as a DLL under Microsoft Windows and you use this method from application code, you must make
sure that both the Coin DLL and the application executable is using the same instance of a C Run-Time (CRT) library. Otherwise, you will
get memory heap corruption upon deallocating the returned instances, eventually leading to mysterious crashes.
const SbBox3f & SbOctTree::getBoundingBox (void) const
Returns a bounding box enclosing all the elements in the tree. This is just the same bounding box which was supplied to the constructor.
void SbOctTree::clear (void)
Restores this oct tree to an empty oct tree. The bounding box will still be the same though.
Author
Generated automatically by Doxygen for Coin from the source code.
Version 3.1.3 Wed May 23 2012 SbOctTree(3)