/usr/include/casacore/ms/MSSel/MSSelUtil2.tcc is in casacore-dev 2.2.0-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 | //# MSSelUtil2.cc: templated helper function for MSSelector
//# Copyright (C) 1997,1999,2000,2001
//# 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 MS_MSSELUTIL2_TCC
#define MS_MSSELUTIL2_TCC
#include <casacore/ms/MSSel/MSSelUtil2.h>
#include <casacore/casa/Arrays/ArrayMath.h>
#include <casacore/casa/Arrays/Vector.h>
#include <casacore/casa/Exceptions/Error.h>
#include <casacore/casa/Utilities/Assert.h>
namespace casacore { //# NAMESPACE CASACORE - BEGIN
// reorder from 3d to 4d (adding ifr axis)
template <class T>
void MSSelUtil2<T>::reorderData(Array<T>& data,
const Vector<Int>& ifrSlot,
Int nIfr, const Vector<Int>& timeSlot,
Int nTime, const T& defvalue)
{
Int nPol=data.shape()(0),nChan=data.shape()(1),nRow=data.shape()(2);
Array<T> data2(IPosition(4,nPol,nChan,nIfr,nTime));
data2.set(defvalue);
Bool deleteData,deleteData2;
const T* pdata=data.getStorage(deleteData);
T* pdata2=data2.getStorage(deleteData2);
Int n=nPol*nChan;
for (Int i=0; i<nRow; i++) {
Int start1=i*n, start2=(ifrSlot(i)+timeSlot(i)*nIfr)*n;
for (Int j=0; j<n; j++) pdata2[start2+j]=pdata[start1+j];
}
data.freeStorage(pdata,deleteData);
data2.putStorage(pdata2,deleteData2);
data.reference(data2);
}
// reorder from 4d to 3d (removing ifr axis)
template <class T>
void MSSelUtil2<T>::reorderData(Array<T>& data, const Matrix<Int>& rowIndex,
Int nRow)
{
Int nPol=data.shape()(0),nChan=data.shape()(1),nIfr=data.shape()(2),
nTime=data.shape()(3);
if (nIfr!=rowIndex.shape()(0) || nTime!=rowIndex.shape()(1)) {
// os<< LogIO::SEVERE << "Data array shape does not match current selection"
// << LogIO::POST;
return;
}
Array<T> data2(IPosition(3,nPol,nChan,nRow));
Bool deleteData,deleteData2;
const T* pData=data.getStorage(deleteData);
T* pData2=data2.getStorage(deleteData2);
Int n=nPol*nChan;
for (Int i=0; i<nTime; i++) {
for (Int j=0; j<nIfr; j++) {
Int k=rowIndex(j,i);
if (k>=0) {
Int start2=k*n, start1=(j+i*nIfr)*n;
for (Int l=0; l<n; l++) pData2[start2+l]=pData[start1+l];
}
}
}
data.freeStorage(pData,deleteData);
data2.putStorage(pData2,deleteData2);
data.reference(data2);
}
// average data (with flags & weights applied) over it's last axis (time or
// row), return in data (overwritten), dataFlag gives new flags.
template <class T>
void MSSelUtil2<T>::timeAverage(Array<Bool>& dataFlag, Array<T>& data,
const Array<Bool>& flag,
const Array<Float>& weight)
{
Bool delData,delFlag,delWeight;
const T* pdata=data.getStorage(delData);
const Bool* pflag=flag.getStorage(delFlag);
const Float* pweight=weight.getStorage(delWeight);
Int nPol=data.shape()(0),nChan=data.shape()(1);
Int nIfr=1, nTime=data.shape()(2);
Array<T> out;
if (data.ndim()==4) {
nIfr=nTime;
nTime=data.shape()(3);
out.resize(IPosition(3,nPol,nChan,nIfr));
} else {
out.resize(IPosition(2,nPol,nChan));
}
Array<Float> wt(IPosition(3,nPol,nChan,nIfr));
dataFlag.resize(IPosition(3,nPol,nChan,nIfr));
dataFlag.set(True);
Bool delDataflag, delWt, delOut;
Float* pwt=wt.getStorage(delWt);
T* pout=out.getStorage(delOut);
Bool* pdflags=dataFlag.getStorage(delDataflag);
out=0;
wt=0;
Int offset=0,off1=0,offw=0;
for (Int l=0; l<nTime; l++) {
off1=0;
for (Int k=0; k<nIfr; k++) {
for (Int j=0; j<nChan; j++) {
for (Int i=0; i<nPol; i++) {
// if (!flag(i,j,k,l)) {
if (!pflag[offset]) {
// out(i,j,k)+=weight(k,l)*data(i,j,k,l);
pdflags[off1]=False;
pout[off1]+=pweight[offw]*pdata[offset];
// wt(i,j,k)+=weight(k,l);
pwt[off1]+=pweight[offw];
}
off1++; offset++;
}
}
offw++;
}
}
for (Int k=0; k<nIfr*nChan*nPol; k++) {
if (pwt[k]>0) pout[k]/=pwt[k];
}
data.freeStorage(pdata,delData);
flag.freeStorage(pflag,delFlag);
weight.freeStorage(pweight,delWeight);
dataFlag.putStorage(pdflags,delDataflag);
wt.putStorage(pwt,delWt);
out.putStorage(pout,delOut);
data.reference(out);
}
} //# NAMESPACE CASACORE - END
#endif
|