/usr/include/vtk-5.8/vtkBitArray.h is in libvtk5-dev 5.8.0-5.
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Program: Visualization Toolkit
Module: vtkBitArray.h
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
// .NAME vtkBitArray - dynamic, self-adjusting array of bits
// .SECTION Description
// vtkBitArray is an array of bits (0/1 data value). The array is packed
// so that each byte stores eight bits. vtkBitArray provides methods
// for insertion and retrieval of bits, and will automatically resize
// itself to hold new data.
#ifndef __vtkBitArray_h
#define __vtkBitArray_h
#include "vtkDataArray.h"
class vtkBitArrayLookup;
class VTK_COMMON_EXPORT vtkBitArray : public vtkDataArray
{
public:
static vtkBitArray *New();
vtkTypeMacro(vtkBitArray,vtkDataArray);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// Allocate memory for this array. Delete old storage only if necessary.
// Note that ext is no longer used.
int Allocate(vtkIdType sz, vtkIdType ext=1000);
// Description:
// Release storage and reset array to initial state.
void Initialize();
// satisfy vtkDataArray API
int GetDataType() {return VTK_BIT;};
int GetDataTypeSize() { return 0; }
// Description:
// Set the number of n-tuples in the array.
void SetNumberOfTuples(vtkIdType number);
// Description:
// Set the tuple at the ith location using the jth tuple in the source array.
// This method assumes that the two arrays have the same type
// and structure. Note that range checking and memory allocation is not
// performed; use in conjunction with SetNumberOfTuples() to allocate space.
virtual void SetTuple(vtkIdType i, vtkIdType j, vtkAbstractArray* source);
// Description:
// Insert the jth tuple in the source array, at ith location in this array.
// Note that memory allocation is performed as necessary to hold the data.
virtual void InsertTuple(vtkIdType i, vtkIdType j, vtkAbstractArray* source);
// Description:
// Insert the jth tuple in the source array, at the end in this array.
// Note that memory allocation is performed as necessary to hold the data.
// Returns the location at which the data was inserted.
virtual vtkIdType InsertNextTuple(vtkIdType j, vtkAbstractArray* source);
// Description:
// Get a pointer to a tuple at the ith location. This is a dangerous method
// (it is not thread safe since a pointer is returned).
double *GetTuple(vtkIdType i);
// Description:
// Copy the tuple value into a user-provided array.
void GetTuple(vtkIdType i, double * tuple);
// Description:
// Set the tuple value at the ith location in the array.
void SetTuple(vtkIdType i, const float * tuple);
void SetTuple(vtkIdType i, const double * tuple);
// Description:
// Insert (memory allocation performed) the tuple into the ith location
// in the array.
void InsertTuple(vtkIdType i, const float * tuple);
void InsertTuple(vtkIdType i, const double * tuple);
// Description:
// Insert (memory allocation performed) the tuple onto the end of the array.
vtkIdType InsertNextTuple(const float * tuple);
vtkIdType InsertNextTuple(const double * tuple);
// Description:
// These methods remove tuples from the data array. They shift data and
// resize array, so the data array is still valid after this operation. Note,
// this operation is fairly slow.
virtual void RemoveTuple(vtkIdType id);
virtual void RemoveFirstTuple();
virtual void RemoveLastTuple();
// Description:
// Set the data component at the ith tuple and jth component location.
// Note that i is less then NumberOfTuples and j is less then
// NumberOfComponents. Make sure enough memory has been allocated (use
// SetNumberOfTuples() and SetNumberOfComponents()).
void SetComponent(vtkIdType i, int j, double c);
// Description:
// Free any unneeded memory.
void Squeeze();
// Description:
// Resize the array while conserving the data.
virtual int Resize(vtkIdType numTuples);
// Description:
// Get the data at a particular index.
int GetValue(vtkIdType id);
// Description:
// Fast method based setting of values without memory checks. First
// use SetNumberOfValues then use SetValue to actually set them.
// Specify the number of values for this object to hold. Does an
// allocation as well as setting the MaxId ivar. Used in conjunction with
// SetValue() method for fast insertion.
void SetNumberOfValues(vtkIdType number);
// Description:
// Set the data at a particular index. Does not do range checking. Make sure
// you use the method SetNumberOfValues() before inserting data.
void SetValue(vtkIdType id, int value);
// Description:
// Insets values and checks to make sure there is enough memory
void InsertValue(vtkIdType id, int i);
// Description:
// Set a value in the array from a variant.
void SetVariantValue(vtkIdType idx, vtkVariant value);
vtkIdType InsertNextValue(int i);
// Description:
// Insert the data component at ith tuple and jth component location.
// Note that memory allocation is performed as necessary to hold the data.
virtual void InsertComponent(vtkIdType i, int j, double c);
// Description:
// Direct manipulation of the underlying data.
unsigned char *GetPointer(vtkIdType id) {return this->Array + id/8;}
// Description:
// Get the address of a particular data index. Make sure data is allocated
// for the number of items requested. Set MaxId according to the number of
// data values requested.
unsigned char *WritePointer(vtkIdType id, vtkIdType number);
void* WriteVoidPointer(vtkIdType id, vtkIdType number)
{ return this->WritePointer(id, number); }
void *GetVoidPointer(vtkIdType id)
{
return static_cast<void *>(this->GetPointer(id));
}
// Description:
// Deep copy of another bit array.
void DeepCopy(vtkDataArray *da);
void DeepCopy(vtkAbstractArray* aa)
{ this->Superclass::DeepCopy(aa); }
// Description:
// This method lets the user specify data to be held by the array. The
// array argument is a pointer to the data. size is the size of
// the array supplied by the user. Set save to 1 to keep the class
// from deleting the array when it cleans up or reallocates memory.
// The class uses the actual array provided; it does not copy the data
// from the suppled array. If save 0, the array must have been allocated
// with new[] not malloc.
void SetArray(unsigned char* array, vtkIdType size, int save);
void SetVoidArray(void *array, vtkIdType size, int save)
{
this->SetArray(static_cast<unsigned char *>(array), size, save);
}
// Description:
// Returns a new vtkBitArrayIterator instance.
vtkArrayIterator* NewIterator();
// Description:
// Return the indices where a specific value appears.
virtual vtkIdType LookupValue(vtkVariant value);
virtual void LookupValue(vtkVariant value, vtkIdList* ids);
vtkIdType LookupValue(int value);
void LookupValue(int value, vtkIdList* ids);
// Description:
// Tell the array explicitly that the data has changed.
// This is only necessary to call when you modify the array contents
// without using the array's API (i.e. you retrieve a pointer to the
// data and modify the array contents). You need to call this so that
// the fast lookup will know to rebuild itself. Otherwise, the lookup
// functions will give incorrect results.
virtual void DataChanged();
// Description:
// Delete the associated fast lookup data structure on this array,
// if it exists. The lookup will be rebuilt on the next call to a lookup
// function.
virtual void ClearLookup();
protected:
vtkBitArray(vtkIdType numComp=1);
~vtkBitArray();
unsigned char *Array; // pointer to data
unsigned char *ResizeAndExtend(vtkIdType sz);
// function to resize data
int TupleSize; //used for data conversion
double *Tuple;
int SaveUserArray;
private:
// hide superclass' DeepCopy() from the user and the compiler
void DeepCopy(vtkDataArray &da) {this->vtkDataArray::DeepCopy(&da);}
private:
vtkBitArray(const vtkBitArray&); // Not implemented.
void operator=(const vtkBitArray&); // Not implemented.
//BTX
vtkBitArrayLookup* Lookup;
void UpdateLookup();
//ETX
};
inline void vtkBitArray::SetNumberOfValues(vtkIdType number)
{
this->Allocate(number);
this->MaxId = number - 1;
this->DataChanged();
}
inline void vtkBitArray::SetValue(vtkIdType id, int value)
{
if (value)
{
this->Array[id/8] = static_cast<unsigned char>(
this->Array[id/8] | (0x80 >> id%8));
}
else
{
this->Array[id/8] = static_cast<unsigned char>(
this->Array[id/8] & (~(0x80 >> id%8)));
}
this->DataChanged();
}
inline void vtkBitArray::InsertValue(vtkIdType id, int i)
{
if ( id >= this->Size )
{
this->ResizeAndExtend(id+1);
}
if (i)
{
this->Array[id/8] = static_cast<unsigned char>(
this->Array[id/8] | (0x80 >> id%8));
}
else
{
this->Array[id/8] = static_cast<unsigned char>(
this->Array[id/8] & (~(0x80 >> id%8)));
}
if ( id > this->MaxId )
{
this->MaxId = id;
}
this->DataChanged();
}
inline void vtkBitArray::SetVariantValue(vtkIdType id, vtkVariant value)
{
this->SetValue(id, value.ToInt());
}
inline vtkIdType vtkBitArray::InsertNextValue(int i)
{
this->InsertValue (++this->MaxId,i);
this->DataChanged();
return this->MaxId;
}
inline void vtkBitArray::Squeeze() {this->ResizeAndExtend (this->MaxId+1);}
#endif
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