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NAME

       SbHeap -

       The SbHeap class is a generic heap class.

       FIXME: write doc.

SYNOPSIS

       #include <Inventor/SbHeap.h>

   Public Member Functions
       SbHeap (const SbHeapFuncs &SbHeapFuncs, const int initsize=1024)
       ~SbHeap ()
       void emptyHeap (void)
       int size (void) const
       int add (void *obj)
       void remove (const int pos)
       void remove (void *obj)
       void * extractMin ()
       void * getMin ()
       void * operator[] (const int idx)
       void newWeight (void *obj, int hpos=-1)
       SbBool buildHeap (SbBool(*progresscb)(float percentage, void *data)=NULL, void *data=NULL)
       SbBool traverseHeap (SbBool(*func)(void *, void *), void *userdata) const

Detailed Description

       The SbHeap class is a generic heap class.

       FIXME: write doc.

       Note: SbHeap is an extension versus the Open Inventor API.

Constructor & Destructor Documentation

   SbHeap::SbHeap (const SbHeapFuncs &hFuncs, const intinitsize = 1024) Constructor. hFuncs
       specifies the functions for modifying and returning information about the heap object,
       initsize specifies the initial number of allocated elements. This array will automatically
       grow when necessary, but if you know approximately how many elements the heap will
       contain, you should supply this to avoid some reallocs.
   SbHeap::~SbHeap (void) Destructor.

Member Function Documentation

   void SbHeap::emptyHeap (void) Removes all the elements from the heap.
   int SbHeap::size (void) const Returns the number of elements in the heap.
   int SbHeap::add (void *obj) Adds an element to the heap. Returns the element's heap position.
   void SbHeap::remove (const intidx) Removes an element from the heap.
   void SbHeap::remove (void *obj) This is an overloaded member function, provided for
       convenience. It differs from the above function only in what argument(s) it accepts.
   void * SbHeap::extractMin (void) Returns and removes the first element in the heap, or NULL if
       heap is empty.
   void * SbHeap::getMin (void) Returns the first element in the heap, or NULL if heap is empty.
   void * SbHeap::operator[] (const intidx) Returns the heap element at index idx in the heap.
   void SbHeap::newWeight (void *obj, inthpos = -1) Fixes heap if necessary when the element at
       hpos has changed weight. If you know the element's heap position you can supply it in
       hpos.
   SbBool SbHeap::buildHeap (SbBool(*)(float percentage, void *data)progresscb = NULL, void *data
       = NULL) Builds heap out of randomly ordered data-structure.
   SbBool SbHeap::traverseHeap (SbBool(*)(void *, void *)func, void *userdata) const Traverses
       each heap elements, and calls func for each element.

Author

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