/usr/include/casacore/lattices/Lattices/MaskedLattice.tcc is in casacore-dev 2.2.0-2.
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//# Copyright (C) 1998,1999,2000
//# Associated Universities, Inc. Washington DC, USA.
//#
//# This library is free software; you can redistribute it and/or modify it
//# under the terms of the GNU Library General Public License as published by
//# the Free Software Foundation; either version 2 of the License, or (at your
//# option) any later version.
//#
//# This library is distributed in the hope that it will be useful, but WITHOUT
//# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
//# FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
//# License for more details.
//#
//# You should have received a copy of the GNU Library General Public License
//# along with this library; if not, write to the Free Software Foundation,
//# Inc., 675 Massachusetts Ave, Cambridge, MA 02139, USA.
//#
//# Correspondence concerning AIPS++ should be addressed as follows:
//# Internet email: aips2-request@nrao.edu.
//# Postal address: AIPS++ Project Office
//# National Radio Astronomy Observatory
//# 520 Edgemont Road
//# Charlottesville, VA 22903-2475 USA
//#
//# $Id$
#ifndef LATTICES_MASKEDLATTICE_TCC
#define LATTICES_MASKEDLATTICE_TCC
#include <casacore/lattices/Lattices/MaskedLattice.h>
#include <casacore/lattices/LRegions/LatticeRegion.h>
#include <casacore/lattices/LRegions/LCBox.h>
#include <casacore/casa/Arrays/Array.h>
#include <casacore/casa/Arrays/Slicer.h>
#include <casacore/casa/Utilities/COWPtr.h>
#include <casacore/casa/Exceptions/Error.h>
namespace casacore { //# NAMESPACE CASACORE - BEGIN
template <class T>
MaskedLattice<T>::MaskedLattice (const MaskedLattice<T>& that)
: Lattice<T>(),
itsDefRegPtr (0)
{
if (that.itsDefRegPtr != 0) {
itsDefRegPtr = new LatticeRegion (*that.itsDefRegPtr);
}
}
template <class T>
MaskedLattice<T>::~MaskedLattice()
{
delete itsDefRegPtr;
}
template <class T>
MaskedLattice<T>& MaskedLattice<T>::operator= (const MaskedLattice<T>& that)
{
if (this != &that) {
delete itsDefRegPtr;
itsDefRegPtr = 0;
if (that.itsDefRegPtr != 0) {
itsDefRegPtr = new LatticeRegion (*that.itsDefRegPtr);
}
}
return *this;
}
template<class T>
Lattice<T>* MaskedLattice<T>::clone() const
{
return cloneML();
}
template<class T>
Bool MaskedLattice<T>::isMasked() const
{
const LatticeRegion* ptr = getRegionPtr();
if (ptr == 0) {
return False;
}
return ptr->hasMask();
}
template<class T>
Bool MaskedLattice<T>::hasPixelMask() const
{
return False;
}
template<class T>
const Lattice<Bool>& MaskedLattice<T>::pixelMask() const
{
throw (AipsError ("MaskedLattice::pixelMask - no pixelmask available"));
//# Make the compiler happy.
return *itsDefRegPtr;
}
template<class T>
Lattice<Bool>& MaskedLattice<T>::pixelMask()
{
throw (AipsError ("MaskedLattice::pixelMask - no pixelmask available"));
//# Make the compiler happy.
return *itsDefRegPtr;
}
template<class T>
const LatticeRegion& MaskedLattice<T>::region() const
{
// If there is a region, return it.
const LatticeRegion* ptr = getRegionPtr();
if (ptr != 0) {
return *ptr;
}
// No region, so use the one in the MaskedLattice itself which
// describes the entire lattice. Create it if it does not exist yet.
// Check if its shape still matches.
if (itsDefRegPtr != 0) {
if (itsDefRegPtr->slicer().length().isEqual (shape())) {
return *itsDefRegPtr;
}
delete itsDefRegPtr;
itsDefRegPtr = 0;
}
itsDefRegPtr = new LatticeRegion (LCBox(shape()));
return *itsDefRegPtr;
}
template<class T>
Bool MaskedLattice<T>::getMask (COWPtr<Array<Bool> >& buffer,
Bool removeDegenerateAxes) const
{
uInt nd = ndim();
return getMaskSlice (buffer, Slicer(IPosition(nd,0), shape()),
removeDegenerateAxes);
}
template<class T>
Bool MaskedLattice<T>::getMask (Array<Bool>& buffer,
Bool removeDegenerateAxes)
{
uInt nd = ndim();
return getMaskSlice (buffer, Slicer(IPosition(nd,0), shape()),
removeDegenerateAxes);
}
template<class T>
Array<Bool> MaskedLattice<T>::getMask (Bool removeDegenerateAxes) const
{
uInt nd = ndim();
return getMaskSlice (Slicer(IPosition(nd,0), shape()),
removeDegenerateAxes);
}
template<class T>
Bool MaskedLattice<T>::getMaskSlice (COWPtr<Array<Bool> >& buffer,
const IPosition& start,
const IPosition& shape,
Bool removeDegenerateAxes) const
{
return getMaskSlice (buffer, Slicer(start, shape),
removeDegenerateAxes);
}
template<class T>
Bool MaskedLattice<T>::getMaskSlice (COWPtr<Array<Bool> >& buffer,
const IPosition& start,
const IPosition& shape,
const IPosition& stride,
Bool removeDegenerateAxes) const
{
return getMaskSlice (buffer, Slicer(start, shape, stride),
removeDegenerateAxes);
}
template<class T>
Bool MaskedLattice<T>::getMaskSlice (COWPtr<Array<Bool> >& buffer,
const Slicer& section,
Bool removeDegenerateAxes) const
{
// Cast pointer to non-const.
// This is safe, since the array is copied when needed by COWptr.
MaskedLattice<T>* This = (MaskedLattice<T>*)this;
// The COWPtr takes over the pointer to the array.
Array<Bool>* arr = new Array<Bool>;
Bool isARef = This->getMaskSlice (*arr, section, removeDegenerateAxes);
buffer = COWPtr<Array<Bool> > (arr, True, isARef);
return False;
}
template<class T>
Bool MaskedLattice<T>::getMaskSlice (Array<Bool>& buffer,
const IPosition& start,
const IPosition& shape,
Bool removeDegenerateAxes)
{
return getMaskSlice (buffer, Slicer(start, shape), removeDegenerateAxes);
}
template<class T>
Bool MaskedLattice<T>::getMaskSlice (Array<Bool>& buffer,
const IPosition& start,
const IPosition& shape,
const IPosition& stride,
Bool removeDegenerateAxes)
{
return getMaskSlice (buffer, Slicer(start, shape, stride),
removeDegenerateAxes);
}
template<class T>
Bool MaskedLattice<T>::getMaskSlice (Array<Bool>& buffer,
const Slicer& section,
Bool removeDegenerateAxes)
{
Bool isARef;
// When the slicer is fixed, it can be used immediately.
// Otherwise unspecified values are to be filled in.
if (section.isFixed()) {
isARef = doGetMaskSlice (buffer, section);
} else {
IPosition blc,trc,inc;
section.inferShapeFromSource (shape(), blc, trc, inc);
isARef = doGetMaskSlice (buffer, Slicer(blc,trc,inc,Slicer::endIsLast));
}
if (removeDegenerateAxes) {
Array<Bool> tmp = buffer.nonDegenerate();
buffer.reference (tmp);
}
return isARef;
}
template<class T>
Array<Bool> MaskedLattice<T>::getMaskSlice (const IPosition& start,
const IPosition& shape,
Bool removeDegenerateAxes) const
{
return getMaskSlice (Slicer(start,shape), removeDegenerateAxes);
}
template<class T>
Array<Bool> MaskedLattice<T>::getMaskSlice (const IPosition& start,
const IPosition& shape,
const IPosition& stride,
Bool removeDegenerateAxes) const
{
return getMaskSlice (Slicer(start,shape,stride), removeDegenerateAxes);
}
template<class T>
Array<Bool> MaskedLattice<T>::getMaskSlice (const Slicer& section,
Bool removeDegenerateAxes) const
{
// Cast pointer to non-const.
// This is safe, since the array is copied when needed.
MaskedLattice<T>* This = (MaskedLattice<T>*)this;
// Note that getMaskSlice is used to be sure that section getMasks filled
// when needed.
Array<Bool> arr;
Bool isARef = This->getMaskSlice (arr, section, removeDegenerateAxes);
// When not referenced, return it as such.
// Otherwise make a copy.
if (!isARef) {
return arr;
}
Array<Bool> tmp;
tmp = arr;
return tmp;
}
template<class T>
Bool MaskedLattice<T>::doGetMaskSlice (Array<Bool>& buffer,
const Slicer& section)
{
// Note that Slicer::inferShapeFromSource has already been called
// by getMaskSlice.
const LatticeRegion* ptr = getRegionPtr();
if (ptr == 0) {
buffer.resize (section.length());
buffer = True;
return False;
}
return const_cast<LatticeRegion*>(ptr)->doGetSlice (buffer, section);
}
} //# NAMESPACE CASACORE - END
#endif
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