/usr/include/ITK-4.9/itkValarrayImageContainer.h is in libinsighttoolkit4-dev 4.9.0-4ubuntu1.
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*
* Copyright Insight Software Consortium
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
#ifndef itkValarrayImageContainer_h
#define itkValarrayImageContainer_h
#include "itkObject.h"
#include "itkObjectFactory.h"
#include <utility>
#include <valarray>
namespace itk
{
/** \class ValarrayImageContainer
* \brief Defines a front-end to the std\\::\<valarray\> container that conforms to the
* ImageContainerInterface.
*
* This is a full-fleged Object, so
* there is modification time, debug, and reference count information.
*
* \tparam TElementIdentifier
* An INTEGRAL type for use in indexing the valarray.
* It must have a \< operator defined for ordering.
*
* \tparam TElement
* The element type stored in the container.
*
* \ingroup ImageObjects
* \ingroup DataRepresentation
* \ingroup ITKCommon
*/
template<
typename TElementIdentifier,
typename TElement
>
class ValarrayImageContainer:
public Object,
private std::valarray< TElement >
{
public:
/** Standard class typedefs. */
typedef ValarrayImageContainer Self;
typedef Object Superclass;
typedef SmartPointer< Self > Pointer;
typedef SmartPointer< const Self > ConstPointer;
/** Save the template parameters. */
typedef TElementIdentifier ElementIdentifier;
typedef TElement Element;
private:
/** Quick access to the STL valarray type that was inherited. */
typedef std::valarray< Element > ValarrayType;
protected:
/** Provide pass-through constructors corresponding to all the STL
* valarray constructors. These are for internal use only since
* this is also an Object which must be constructed through the
* "New()" routine. */
ValarrayImageContainer():
ValarrayType() {}
ValarrayImageContainer(unsigned long n):
ValarrayType(n) {}
ValarrayImageContainer(unsigned long n, const Element & x):
ValarrayType(n, x) {}
ValarrayImageContainer(const Self & r):
ValarrayType(r) {}
public:
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** Standard part of every itk Object. */
itkTypeMacro(ValarrayImageContainer, Object);
/** Index operator. This version can be an lvalue. */
TElement & operator[](const ElementIdentifier id)
{ return this->ValarrayType::operator[](id); }
/** Index operator. This version can only be an rvalue */
const TElement & operator[](const ElementIdentifier id) const
{ return this->ValarrayType::operator[](id); }
/** Return a pointer to the beginning of the buffer. This is used by
* the image iterator class. */
TElement * GetBufferPointer()
{
if ( this->Size() > 0 )
{
return & ( this->ValarrayType::operator[](0) );
}
else
{
return ITK_NULLPTR;
}
}
/** Get the number of elements currently stored in the container. */
unsigned long Size(void) const
{ return static_cast< unsigned long >( this->ValarrayType::size() ); }
/** Tell the container to allocate enough memory to allow at least
* as many elements as the size given to be stored. This is NOT
* guaranteed to actually allocate any memory, but is useful if the
* implementation of the container allocates contiguous storage. */
void Reserve(ElementIdentifier num)
{ this->ValarrayType::resize(num); }
/** Tell the container to try to minimize its memory usage for storage of
* the current number of elements. This is NOT guaranteed to decrease
* memory usage. */
void Squeeze(void)
{ this->ValarrayType::resize( this->ValarrayType::size() ); }
/** Tell the container to release any of its allocated memory. */
void Initialize(void)
{ this->ValarrayType::resize(0); }
/** Tell the container to release any of its allocated memory. */
void Fill(const TElement & value)
{ this->ValarrayType::operator=(value); }
public:
/** PrintSelf routine. Normally this is a protected internal method. It is
* made public here so that Image can call this method. Users should not
* call this method but should call Print() instead. */
virtual void PrintSelf(std::ostream & os, Indent indent) const ITK_OVERRIDE
{
Object::PrintSelf(os, indent);
// Print out the pointer to bulk data memory. We use const_cast<> to
// cast away the constness so we can call GetBufferPointer()
os << indent << "Pointer: "
<< const_cast< ValarrayImageContainer * >( this )->GetBufferPointer()
<< std::endl;
os << indent << "Size: " << this->Size() << std::endl;
}
};
} // end namespace itk
#endif
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