/usr/include/casacore/lattices/LEL/LELFunction.tcc is in casacore-dev 2.2.0-2.
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//# Copyright (C) 1997,1998,1999,2000,2001,2003
//# 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_LELFUNCTION_TCC
#define LATTICES_LELFUNCTION_TCC
#include <casacore/lattices/LEL/LatticeExpr.h>
#include <casacore/lattices/LEL/LELFunction.h>
#include <casacore/lattices/LEL/LELFunctionEnums.h>
#include <casacore/lattices/LEL/LELScalar.h>
#include <casacore/lattices/LEL/LELArray.h>
#include <casacore/lattices/LatticeMath/LatticeFractile.h>
#include <casacore/lattices/LEL/LatticeExpr.h>
#include <casacore/lattices/Lattices/MaskedLatticeIterator.h>
#include <casacore/lattices/Lattices/LatticeIterator.h>
#include <casacore/casa/Arrays/Slicer.h>
#include <casacore/casa/Arrays/Vector.h>
#include <casacore/casa/Arrays/ArrayMath.h>
#include <casacore/scimath/Mathematics/NumericTraits.h>
#include <casacore/casa/Exceptions/Error.h>
namespace casacore { //# NAMESPACE CASACORE - BEGIN
// LELFunction1D
template <class T>
LELFunction1D<T>::LELFunction1D(const LELFunctionEnums::Function function,
const CountedPtr<LELInterface<T> >& expr)
: function_p(function)
{
switch (function_p) {
case LELFunctionEnums::MIN1D :
case LELFunctionEnums::MAX1D :
case LELFunctionEnums::MEAN1D :
case LELFunctionEnums::SUM :
setAttr(LELAttribute()); // these result in a scalar
break;
case LELFunctionEnums::VALUE :
{
// The value gets unmasked.
const LELAttribute& argAttr = expr->getAttribute();
if (argAttr.isScalar()) {
setAttr (LELAttribute());
} else {
setAttr (LELAttribute (False, argAttr.shape(), argAttr.tileShape(),
argAttr.coordinates()));
}
break;
}
default:
setAttr(expr->getAttribute());
}
// Fill this variable here, so an exception in setAttr does
// not leave it undestructed.
pExpr_p = expr;
#if defined(AIPS_TRACE)
cout << "LELFunction1D: constructor" << endl;
#endif
}
template <class T>
LELFunction1D<T>::~LELFunction1D()
{
#if defined(AIPS_TRACE)
cout << "LELFunction1D: destructor" << endl;
#endif
}
template <class T>
void LELFunction1D<T>::eval(LELArray<T>& result,
const Slicer& section) const
{
#if defined(AIPS_TRACE)
cout << "LELFunction1D:: eval" << endl;
#endif
// Evaluate the expression
pExpr_p->eval(result, section);
// Apply the 1D function
switch(function_p) {
case LELFunctionEnums::SIN :
{
Array<T> tmp(sin(result.value()));
result.value().reference(tmp);
break;
}
case LELFunctionEnums::SINH :
{
Array<T> tmp(sinh(result.value()));
result.value().reference(tmp);
break;
}
case LELFunctionEnums::COS :
{
Array<T> tmp(cos(result.value()));
result.value().reference(tmp);
break;
}
case LELFunctionEnums::COSH :
{
Array<T> tmp(cosh(result.value()));
result.value().reference(tmp);
break;
}
case LELFunctionEnums::EXP :
{
Array<T> tmp(exp(result.value()));
result.value().reference(tmp);
break;
}
case LELFunctionEnums::LOG :
{
Array<T> tmp(log(result.value()));
result.value().reference(tmp);
break;
}
case LELFunctionEnums::LOG10 :
{
Array<T> tmp(log10(result.value()));
result.value().reference(tmp);
break;
}
case LELFunctionEnums::SQRT :
{
Array<T> tmp(sqrt(result.value()));
result.value().reference(tmp);
break;
}
case LELFunctionEnums::VALUE :
{
result.removeMask();
break;
}
default:
throw(AipsError("LELFunction1D::eval - unknown function"));
}
}
template <class T>
LELScalar<T> LELFunction1D<T>::getScalar() const
{
#if defined(AIPS_TRACE)
cout << "LELFunction1D:: getScalar" << endl;
#endif
// Apply the 1D function
switch(function_p) {
case LELFunctionEnums::SIN :
return sin(pExpr_p->getScalar().value());
case LELFunctionEnums::SINH :
return sinh(pExpr_p->getScalar().value());
case LELFunctionEnums::COS :
return cos(pExpr_p->getScalar().value());
case LELFunctionEnums::COSH :
return cosh(pExpr_p->getScalar().value());
case LELFunctionEnums::EXP :
return exp(pExpr_p->getScalar().value());
case LELFunctionEnums::LOG :
return log(pExpr_p->getScalar().value());
case LELFunctionEnums::LOG10 :
return log10(pExpr_p->getScalar().value());
case LELFunctionEnums::SQRT :
return sqrt(pExpr_p->getScalar().value());
case LELFunctionEnums::VALUE :
return pExpr_p->getScalar();
case LELFunctionEnums::MIN1D :
{
if (pExpr_p->isScalar()) {
return pExpr_p->getScalar();
}
Bool firstTime = True;
T minVal = T();
LatticeExpr<T> latExpr(pExpr_p);
if (! latExpr.isMasked()) {
RO_LatticeIterator<T> iter(latExpr);
while (! iter.atEnd()) {
T minv = min(iter.cursor());
if (firstTime || minv < minVal) {
firstTime = False;
minVal = minv;
}
iter++;
}
} else {
RO_MaskedLatticeIterator<T> iter(latExpr);
Bool delMask, delData;
Array<Bool> mask;
while (! iter.atEnd()) {
const Array<T>& array = iter.cursor();
iter.getMask (mask);
const Bool* maskPtr = mask.getStorage (delMask);
const T* dataPtr = array.getStorage (delData);
size_t n = array.nelements();
T lminVal = minVal;
for (size_t i=0; i<n; i++) {
if (maskPtr[i]) {
if (firstTime || dataPtr[i] < lminVal) {
firstTime = False;
lminVal = dataPtr[i];
}
}
}
minVal = lminVal;
mask.freeStorage (maskPtr, delMask);
array.freeStorage (dataPtr, delData);
iter++;
}
}
if (firstTime) {
return LELScalar<T>(); // no element found
}
return minVal;
}
case LELFunctionEnums::MAX1D :
{
if (pExpr_p->isScalar()) {
return pExpr_p->getScalar();
}
Bool firstTime = True;
T maxVal = T();
LatticeExpr<T> latExpr(pExpr_p);
if (! latExpr.isMasked()) {
RO_LatticeIterator<T> iter(latExpr);
while (! iter.atEnd()) {
T maxv = max(iter.cursor());
if (firstTime || maxv > maxVal) {
firstTime = False;
maxVal = maxv;
}
iter++;
}
} else {
RO_MaskedLatticeIterator<T> iter(latExpr);
Bool delMask, delData;
Array<Bool> mask;
while (! iter.atEnd()) {
const Array<T>& array = iter.cursor();
iter.getMask (mask);
const Bool* maskPtr = mask.getStorage (delMask);
const T* dataPtr = array.getStorage (delData);
size_t n = array.nelements();
T lmaxVal = maxVal;
for (size_t i=0; i<n; i++) {
if (maskPtr[i]) {
if (firstTime || dataPtr[i] > lmaxVal) {
firstTime = False;
lmaxVal = dataPtr[i];
}
}
}
maxVal = lmaxVal;
mask.freeStorage (maskPtr, delMask);
array.freeStorage (dataPtr, delData);
iter++;
}
}
if (firstTime) {
return LELScalar<T>(); // no element found
}
return maxVal;
}
case LELFunctionEnums::MEAN1D :
{
if (pExpr_p->isScalar()) {
return pExpr_p->getScalar();
}
typename NumericTraits<T>::PrecisionType sumVal = 0;
size_t nrVal = 0;
LatticeExpr<T> latExpr(pExpr_p);
Bool delData, delMask;
// Do the sum ourselves to avoid round off
if (! latExpr.isMasked()) {
RO_LatticeIterator<T> iter(latExpr);
while (! iter.atEnd()) {
const Array<T>& array = iter.cursor();
const T* dataPtr = array.getStorage(delData);
size_t n = array.nelements();
typename NumericTraits<T>::PrecisionType lsumVal = 0;
for (size_t i=0; i<n; i++) {
lsumVal += dataPtr[i];
}
sumVal += lsumVal;
array.freeStorage(dataPtr, delData);
nrVal += n;
iter++;
}
} else {
RO_MaskedLatticeIterator<T> iter(latExpr);
Array<Bool> mask;
while (! iter.atEnd()) {
const Array<T>& array = iter.cursor();
iter.getMask (mask);
const Bool* maskPtr = mask.getStorage (delMask);
const T* dataPtr = array.getStorage (delData);
size_t n = array.nelements();
typename NumericTraits<T>::PrecisionType lsumVal = 0;
size_t lnrVal = 0;
for (size_t i=0; i<n; i++) {
if (maskPtr[i]) {
lsumVal += dataPtr[i];
lnrVal++;
}
}
sumVal += lsumVal;
nrVal += lnrVal;
mask.freeStorage (maskPtr, delMask);
array.freeStorage (dataPtr, delData);
iter++;
}
}
if (nrVal == 0) {
return LELScalar<T>(); // no element found
}
return T(sumVal / Double(nrVal));
}
case LELFunctionEnums::SUM :
{
if (pExpr_p->isScalar()) {
return pExpr_p->getScalar();
}
typename NumericTraits<T>::PrecisionType sumVal = 0;
LatticeExpr<T> latExpr(pExpr_p);
Bool delData, delMask;
// Do the sum ourselves to avoid round off
if (! latExpr.isMasked()) {
RO_LatticeIterator<T> iter(latExpr);
while (! iter.atEnd()) {
const Array<T>& array = iter.cursor();
const T* dataPtr = array.getStorage(delData);
size_t n = array.nelements();
typename NumericTraits<T>::PrecisionType lsumVal = 0;
for (size_t i=0; i<n; i++) {
lsumVal += dataPtr[i];
}
sumVal += lsumVal;
array.freeStorage(dataPtr, delData);
iter++;
}
} else {
RO_MaskedLatticeIterator<T> iter(latExpr);
Array<Bool> mask;
while (! iter.atEnd()) {
const Array<T>& array = iter.cursor();
iter.getMask (mask);
const Bool* maskPtr = mask.getStorage (delMask);
const T* dataPtr = array.getStorage (delData);
size_t n = array.nelements();
typename NumericTraits<T>::PrecisionType lsumVal = 0;
for (size_t i=0; i<n; i++) {
if (maskPtr[i]) {
lsumVal += dataPtr[i];
}
}
sumVal += lsumVal;
mask.freeStorage (maskPtr, delMask);
array.freeStorage (dataPtr, delData);
iter++;
}
}
return T(sumVal);
}
default:
throw(AipsError("LELFunction1D::getScalar - unknown function"));
}
return pExpr_p->getScalar(); // to make compiler happy
}
template <class T>
Bool LELFunction1D<T>::prepareScalarExpr()
{
#if defined(AIPS_TRACE)
cout << "LELFunction1D::prepare" << endl;
#endif
return LELInterface<T>::replaceScalarExpr (pExpr_p);
}
template <class T>
String LELFunction1D<T>::className() const
{
return String("LELFunction1D");
}
template<class T>
Bool LELFunction1D<T>::lock (FileLocker::LockType type, uInt nattempts)
{
return pExpr_p->lock (type, nattempts);
}
template<class T>
void LELFunction1D<T>::unlock()
{
pExpr_p->unlock();
}
template<class T>
Bool LELFunction1D<T>::hasLock (FileLocker::LockType type) const
{
return pExpr_p->hasLock (type);
}
template<class T>
void LELFunction1D<T>::resync()
{
pExpr_p->resync();
}
// LELFunctionReal1D
template <class T>
LELFunctionReal1D<T>::LELFunctionReal1D
(const LELFunctionEnums::Function function,
const CountedPtr<LELInterface<T> >& expr)
: function_p(function)
{
switch (function_p) {
case LELFunctionEnums::MEDIAN1D :
setAttr(LELAttribute()); // these result in a scalar
break;
default:
setAttr(expr->getAttribute());
}
// Fill this variable here, so an exception in setAttr does
// not leave it undestructed.
pExpr_p = expr;
#if defined(AIPS_TRACE)
cout << "LELFunctionReal1D: constructor" << endl;
#endif
}
template <class T>
LELFunctionReal1D<T>::~LELFunctionReal1D()
{
#if defined(AIPS_TRACE)
cout << "LELFunctionReal1D: destructor" << endl;
#endif
}
template <class T>
void LELFunctionReal1D<T>::eval(LELArray<T>& result,
const Slicer& section) const
{
#if defined(AIPS_TRACE)
cout << "LELFunctionReal1D:: eval" << endl;
#endif
// Evaluate the expression
pExpr_p->eval(result, section);
// Apply the Real1D function
switch(function_p) {
case LELFunctionEnums::ASIN :
{
Array<T> tmp(asin(result.value()));
result.value().reference(tmp);
break;
}
case LELFunctionEnums::ACOS :
{
Array<T> tmp(acos(result.value()));
result.value().reference(tmp);
break;
}
case LELFunctionEnums::TAN :
{
Array<T> tmp(tan(result.value()));
result.value().reference(tmp);
break;
}
case LELFunctionEnums::TANH :
{
Array<T> tmp(tanh(result.value()));
result.value().reference(tmp);
break;
}
case LELFunctionEnums::ATAN :
{
Array<T> tmp(atan(result.value()));
result.value().reference(tmp);
break;
}
case LELFunctionEnums::ROUND :
{
Bool deleteIt;
T* data = result.value().getStorage (deleteIt);
size_t nr = result.value().nelements();
for (size_t i=0; i<nr; i++) {
if (data[i] < 0) {
data[i] = ceil (data[i] - 0.5);
} else {
data[i] = floor (data[i] + 0.5);
}
}
result.value().putStorage (data, deleteIt);
break;
}
case LELFunctionEnums::CEIL :
{
Array<T> tmp(ceil(result.value()));
result.value().reference(tmp);
break;
}
case LELFunctionEnums::FLOOR :
{
Array<T> tmp(floor(result.value()));
result.value().reference(tmp);
break;
}
default:
throw(AipsError("LELFunctionReal1D::eval - unknown function"));
}
}
template <class T>
LELScalar<T> LELFunctionReal1D<T>::getScalar() const
{
#if defined(AIPS_TRACE)
cout << "LELFunctionReal1D:: getScalar" << endl;
#endif
// Apply the Real1D function
switch(function_p) {
case LELFunctionEnums::ASIN :
return asin(pExpr_p->getScalar().value());
case LELFunctionEnums::ACOS :
return acos(pExpr_p->getScalar().value());
case LELFunctionEnums::TAN :
return tan(pExpr_p->getScalar().value());
case LELFunctionEnums::TANH :
return tanh(pExpr_p->getScalar().value());
case LELFunctionEnums::ATAN :
return atan(pExpr_p->getScalar().value());
case LELFunctionEnums::ROUND :
{
T value = pExpr_p->getScalar().value();
if (value < 0) {
return ceil(value - 0.5);
}
return floor (value + 0.5);
}
case LELFunctionEnums::CEIL :
return ceil(pExpr_p->getScalar().value());
case LELFunctionEnums::FLOOR :
return floor(pExpr_p->getScalar().value());
case LELFunctionEnums::MEDIAN1D :
{
if (pExpr_p->isScalar()) {
return pExpr_p->getScalar();
}
Vector<T> median = LatticeFractile<T>::maskedFractile
(LatticeExpr<T>(pExpr_p), 0.5);
if (median.nelements() == 0) {
return LELScalar<T>(); // no valid median found
}
return median(0);
}
default:
throw(AipsError("LELFunctionReal1D::getScalar - unknown function"));
}
return pExpr_p->getScalar(); // to make compiler happy
}
template <class T>
Bool LELFunctionReal1D<T>::prepareScalarExpr()
{
#if defined(AIPS_TRACE)
cout << "LELFunctionReal1D::prepare" << endl;
#endif
if (! pExpr_p.null()) {
return LELInterface<T>::replaceScalarExpr (pExpr_p);
}
return False;
}
template <class T>
String LELFunctionReal1D<T>::className() const
{
return String("LELFunctionReal1D");
}
template<class T>
Bool LELFunctionReal1D<T>::lock (FileLocker::LockType type, uInt nattempts)
{
return pExpr_p->lock (type, nattempts);
}
template<class T>
void LELFunctionReal1D<T>::unlock()
{
pExpr_p->unlock();
}
template<class T>
Bool LELFunctionReal1D<T>::hasLock (FileLocker::LockType type) const
{
return pExpr_p->hasLock (type);
}
template<class T>
void LELFunctionReal1D<T>::resync()
{
pExpr_p->resync();
}
// LELFunctionND
template <class T>
LELFunctionND<T>::LELFunctionND(const LELFunctionEnums::Function function,
const Block<LatticeExprNode>& exp)
: function_p(function)
{
switch (function_p) {
case LELFunctionEnums::IIF :
{
if (exp.nelements() != 3) {
throw (AipsError ("LELFunctionND - "
"function IIF should have 3 arguments"));
}
//# The 1st argument must be Bool, the 2nd and 3rd must be T.
//# The arguments do not need to be lattices.
Block<Int> argType(3);
argType[0] = TpBool;
argType[1] = whatType(static_cast<T*>(0));
argType[2] = whatType(static_cast<T*>(0));
setAttr (LatticeExprNode::checkArg (exp, argType, False));
break;
}
case LELFunctionEnums::REPLACE :
{
if (exp.nelements() != 2) {
throw (AipsError ("LELFunctionND - "
"function REPLACE should have 2 arguments"));
}
//# The 1st and 2nd argument must be T.
//# The first arguments has to be a lattice.
if (exp[0].isScalar()) {
throw (AipsError ("LELFunctionND - "
"first argument of function REPLACE cannot be "
" a scalar"));
}
Block<Int> argType(2);
argType[0] = whatType(static_cast<T*>(0));
argType[1] = whatType(static_cast<T*>(0));
LatticeExprNode::checkArg (exp, argType, False);
setAttr (exp[0].getAttribute());
break;
}
default:
throw (AipsError ("LELFunctionND::constructor - unknown function"));
}
// Fill the node block here, so an exception does
// not leave the nodes undestructed.
arg_p = exp;
#if defined(AIPS_TRACE)
cout << "LELFunctionND: constructor" << endl;
#endif
}
template <class T>
LELFunctionND<T>::~LELFunctionND()
{
#if defined(AIPS_TRACE)
cout << "LELFunctionND: destructor" << endl;
#endif
}
template <class T>
void LELFunctionND<T>::eval(LELArray<T>& result,
const Slicer& section) const
{
#if defined(AIPS_TRACE)
cout << "LELFunctionND:: eval" << endl;
#endif
switch (function_p) {
case LELFunctionEnums::IIF :
{
//# Evaluation is not difficult, but there are many scalar/lattice
//# combinations.
//# The optional masks make life even much more difficult.
// If the condition is a scalar, the result is simply the 1st or 2nd operand.
// If the operand taken is a scalar, its mask is certainly true.
// (otherwise prepareScalarExpr would have tackled it).
if (arg_p[0].isScalar()) {
T tmp;
Bool tmpb;
arg_p[0].eval (tmpb);
if (tmpb) {
if (arg_p[1].isScalar()) {
arg_p[1].eval (tmp);
result.value() = tmp;
} else {
arg_p[1].eval (result, section);
}
} else {
if (arg_p[2].isScalar()) {
arg_p[2].eval (tmp);
result.value() = tmp;
} else {
arg_p[2].eval (result, section);
}
}
} else {
// So the condition is an array.
// The result might get a mask. That is the case if one of the operands
// is an invalid scalar or an array with mask,
LELArrayRef<Bool> tmpb(result.shape());
arg_p[0].evalRef (tmpb, section);
Bool deleteTmpb;
const Bool* tmpbData = tmpb.value().getStorage (deleteTmpb);
size_t n = tmpb.value().nelements();
Bool deleteRes, deleteMask;
T* resData = 0;
Bool* maskData = 0;
T tmp1, tmp2;
// The combination of left and right gets a mask if either
// of them has a mask.
Array<Bool> newMask;
Bool makeMask = (arg_p[1].isInvalidScalar()
|| arg_p[1].isMasked()
|| arg_p[2].isInvalidScalar()
|| arg_p[2].isMasked());
// There are 4 different scalar/array combinations for 1st and 2nd operand.
// Each of them must handle the optional new mask.
// Because efficiency is needed, the test for a new mask is done
// outside the loop.
if (arg_p[1].isScalar()) {
arg_p[1].eval (tmp1);
Bool mask1 = (!arg_p[1].isInvalidScalar());
if (arg_p[2].isScalar()) {
// Handle scalar,scalar case.
resData = result.value().getStorage (deleteRes);
arg_p[2].eval (tmp2);
Bool mask2 = (!arg_p[2].isInvalidScalar());
if (makeMask) {
newMask.resize (result.shape());
maskData = newMask.getStorage (deleteMask);
for (size_t i=0; i<n; i++) {
if (tmpbData[i]) {
resData[i] = tmp1;
maskData[i] = mask1;
} else {
resData[i] = tmp2;
maskData[i] = mask2;
}
}
} else {
for (size_t i=0; i<n; i++) {
if (tmpbData[i]) {
resData[i] = tmp1;
} else {
resData[i] = tmp2;
}
}
}
} else {
// Handle scalar,array case.
arg_p[2].eval (result, section);
resData = result.value().getStorage (deleteRes);
if (makeMask) {
if (result.isMasked()) {
newMask.reference (result.mask());
} else {
newMask.resize (result.shape());
newMask = True;
}
maskData = newMask.getStorage (deleteMask);
for (size_t i=0; i<n; i++) {
if (tmpbData[i]) {
resData[i] = tmp1;
maskData[i] = mask1;
}
}
} else {
for (size_t i=0; i<n; i++) {
if (tmpbData[i]) {
resData[i] = tmp1;
}
}
}
}
// The first operand is an array.
} else {
arg_p[1].eval (result, section);
resData = result.value().getStorage (deleteRes);
if (makeMask) {
if (result.isMasked()) {
newMask.reference (result.mask());
} else {
newMask.resize (result.shape());
newMask = True;
}
}
if (arg_p[2].isScalar()) {
// Handle array,scalar case.
arg_p[2].eval (tmp2);
if (makeMask) {
Bool mask2 = (!arg_p[2].isInvalidScalar());
maskData = newMask.getStorage (deleteMask);
for (size_t i=0; i<n; i++) {
if (! tmpbData[i]) {
resData[i] = tmp2;
maskData[i] = mask2;
}
}
} else {
for (size_t i=0; i<n; i++) {
if (! tmpbData[i]) {
resData[i] = tmp2;
}
}
}
} else {
// Handle array,array case.
LELArrayRef<T> tmp(result.shape());
arg_p[2].evalRef (tmp, section);
Bool deleteTmp, deleteTmpMask;
const T* tmpData = tmp.value().getStorage (deleteTmp);
if (makeMask) {
maskData = newMask.getStorage (deleteMask);
if (tmp.isMasked()) {
const Bool* tmpMaskData = tmp.mask().getStorage
(deleteTmpMask);
for (size_t i=0; i<n; i++) {
if (! tmpbData[i]) {
resData[i] = tmpData[i];
maskData[i] = tmpMaskData[i];
}
}
tmp.mask().freeStorage (tmpMaskData, deleteTmpMask);
} else {
for (size_t i=0; i<n; i++) {
if (! tmpbData[i]) {
resData[i] = tmpData[i];
maskData[i] = True;
}
}
}
tmp.value().freeStorage (tmpData, deleteTmp);
} else {
for (size_t i=0; i<n; i++) {
if (! tmpbData[i]) {
resData[i] = tmpData[i];
}
}
}
}
}
tmpb.value().freeStorage (tmpbData, deleteTmpb);
if (resData != 0) {
result.value().putStorage (resData, deleteRes);
}
if (maskData != 0) {
newMask.putStorage (maskData, deleteMask);
}
result.setMask (tmpb);
if (makeMask) {
result.combineMask (newMask);
}
}
break;
}
case LELFunctionEnums::REPLACE :
{
//# The first argument is always an array.
//# Replacing is only needed if the first argument has a mask.
arg_p[0].eval (result, section);
if (arg_p[0].isMasked()) {
size_t n = result.value().nelements();
Bool deleteRes, deleteMask;
T* resData = result.value().getStorage (deleteRes);
const Bool* maskData = result.mask().getStorage (deleteMask);
//# Handle the scalar case. Use 0 for an invalid scalar.
if (arg_p[1].isScalar()) {
T tmp;
if (arg_p[1].isInvalidScalar()) {
tmp = 0;
} else {
arg_p[1].eval (tmp);
}
for (size_t i=0; i<n; i++) {
if (! maskData[i]) {
resData[i] = tmp;
}
}
} else {
LELArrayRef<T> tmp(result.shape());
arg_p[1].evalRef (tmp, section);
Bool deleteTmp;
const T* tmpData = tmp.value().getStorage (deleteTmp);
for (size_t i=0; i<n; i++) {
if (! maskData[i]) {
resData[i] = tmpData[i];
}
}
tmp.value().freeStorage (tmpData, deleteTmp);
}
result.value().putStorage (resData, deleteRes);
result.mask().freeStorage (maskData, deleteMask);
}
break;
}
//
default:
throw(AipsError("LELFunctionND::eval - unknown function"));
}
}
template <class T>
LELScalar<T> LELFunctionND<T>::getScalar() const
{
#if defined(AIPS_TRACE)
cout << "LELFunctionND:: getScalar" << endl;
#endif
// Apply the ND function
T tmp;
switch(function_p) {
case LELFunctionEnums::IIF :
{
Bool tmpb;
arg_p[0].eval (tmpb);
if (tmpb) {
arg_p[1].eval (tmp);
} else {
arg_p[2].eval (tmp);
}
return tmp;
}
default:
throw(AipsError("LELFunctionND::getScalar - unknown function"));
}
return tmp; // to make compiler happy
}
template <class T>
Bool LELFunctionND<T>::prepareScalarExpr()
{
#if defined(AIPS_TRACE)
cout << "LELFunctionND::prepare" << endl;
#endif
size_t i;
for (i=0; i<arg_p.nelements(); i++) {
Bool invalid = arg_p[i].replaceScalarExpr();
if (invalid && function_p != LELFunctionEnums::IIF
&& function_p != LELFunctionEnums::REPLACE) {
return True;
}
}
// REPLACE is never invalid.
if (function_p == LELFunctionEnums::REPLACE) {
return False;
}
// IIF is invalid if:
// - the condition is an invalid scalar.
// - both operands are invalid scalars.
// - condition is scalar and corresponding operand is invalid scalar.
if (arg_p[0].isInvalidScalar()) {
return True;
}
if (arg_p[1].isInvalidScalar() && arg_p[2].isInvalidScalar()) {
return True;
}
if (arg_p[0].isScalar()) {
i = (arg_p[0].getBool() ? 1 : 2);
if (arg_p[i].isInvalidScalar()) {
return True;
}
}
return False;
}
template <class T>
String LELFunctionND<T>::className() const
{
return String("LELFunctionND");
}
template<class T>
Bool LELFunctionND<T>::lock (FileLocker::LockType type, uInt nattempts)
{
for (size_t i=0; i<arg_p.nelements(); i++) {
if (! arg_p[i].lock (type, nattempts)) {
return False;
}
}
return True;
}
template<class T>
void LELFunctionND<T>::unlock()
{
for (size_t i=0; i<arg_p.nelements(); i++) {
arg_p[i].unlock();
}
}
template<class T>
Bool LELFunctionND<T>::hasLock (FileLocker::LockType type) const
{
for (size_t i=0; i<arg_p.nelements(); i++) {
if (! arg_p[i].hasLock (type)) {
return False;
}
}
return True;
}
template<class T>
void LELFunctionND<T>::resync()
{
for (size_t i=0; i<arg_p.nelements(); i++) {
arg_p[i].resync();
}
}
} //# NAMESPACE CASACORE - END
#endif
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