source: branches/alma/src/STWriter.cpp@ 1648

Last change on this file since 1648 was 1603, checked in by TakTsutsumi, 15 years ago

New Development: No, merge with asap2.3.1

JIRA Issue: Yes CAS-1450

Ready to Release: Yes/No

Interface Changes: Yes/No

What Interface Changed: Please list interface changes

Test Programs: List test programs

Put in Release Notes: Yes

Module(s): single dish

Description: Upgrade of alma branch based on ASAP2.2.0

(rev.1562) to ASAP2.3.1 (rev.1561)


  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
File size: 10.9 KB
Line 
1//#---------------------------------------------------------------------------
2//# STWriter.cc: ASAP class to write out single dish spectra.
3//#---------------------------------------------------------------------------
4//# Copyright (C) 2004
5//# ATNF
6//#
7//# This program is free software; you can redistribute it and/or modify it
8//# under the terms of the GNU General Public License as published by the Free
9//# Software Foundation; either version 2 of the License, or (at your option)
10//# any later version.
11//#
12//# This program is distributed in the hope that it will be useful, but
13//# WITHOUT ANY WARRANTY; without even the implied warranty of
14//# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
15//# Public License for more details.
16//#
17//# You should have received a copy of the GNU General Public License along
18//# with this program; if not, write to the Free Software Foundation, Inc.,
19//# 675 Massachusetts Ave, Cambridge, MA 02139, USA.
20//#
21//# Correspondence concerning this software should be addressed as follows:
22//# Internet email: Malte.Marquarding@csiro.au
23//# Postal address: Malte Marquarding,
24//# Australia Telescope National Facility,
25//# P.O. Box 76,
26//# Epping, NSW, 2121,
27//# AUSTRALIA
28//#
29//# $Id: STWriter.cpp 1603 2009-07-17 20:35:47Z TakTsutsumi $
30//#---------------------------------------------------------------------------
31
32#include <string>
33
34#include <casa/aips.h>
35#include <casa/Arrays/Array.h>
36#include <casa/Arrays/Vector.h>
37#include <casa/BasicSL/Complex.h>
38#include <casa/Utilities/CountedPtr.h>
39#include <casa/Utilities/Assert.h>
40
41#include <atnf/PKSIO/PKSrecord.h>
42#include <atnf/PKSIO/PKSMS2writer.h>
43#include <atnf/PKSIO/PKSSDwriter.h>
44
45#include <tables/Tables/Table.h>
46#include <tables/Tables/TableIter.h>
47#include <tables/Tables/TableRow.h>
48#include <tables/Tables/ArrayColumn.h>
49
50#include "STFITSImageWriter.h"
51#include "STAsciiWriter.h"
52#include "STHeader.h"
53
54#include "STWriter.h"
55
56using namespace casa;
57namespace asap {
58
59STWriter::STWriter(const std::string &format)
60{
61 format_ = format;
62 String t(format_);
63 t.upcase();
64 if (t == "MS2") {
65 writer_ = new PKSMS2writer();
66 } else if (t == "SDFITS") {
67 writer_ = new PKSSDwriter();
68 } else if (t == "ASCII" || t == "FITS" || t == "CLASS") {
69 writer_ = 0;
70 } else {
71 throw (AipsError("Unrecognized export format"));
72 }
73}
74
75STWriter::~STWriter()
76{
77 if (writer_) {
78 delete writer_;
79 }
80}
81
82Int STWriter::setFormat(const std::string &format)
83{
84 if (format != format_) {
85 if (writer_) delete writer_;
86 }
87
88 format_ = format;
89 String t(format_);
90 t.upcase();
91 if (t== "MS2") {
92 writer_ = new PKSMS2writer();
93 } else if (t== "SDFITS") {
94 writer_ = new PKSSDwriter();
95 } else if (t == "ASCII" || t == "FITS" || t == "CLASS") {
96 writer_ = 0;
97 } else {
98 throw (AipsError("Unrecognized Format"));
99 }
100 return 0;
101}
102
103Int STWriter::write(const CountedPtr<Scantable> in,
104 const std::string &filename)
105{
106
107 if (format_=="ASCII") {
108 STAsciiWriter iw;
109 if (iw.write(*in, filename)) {
110 return 0;
111 } else {
112 return 1;
113 }
114 } else if ( format_ == "FITS" || format_ == "CLASS") {
115 STFITSImageWriter iw;
116 if (format_ == "CLASS") {
117 iw.setClass(True);
118 }
119 if (iw.write(*in, filename)) {
120 return 0;
121 }
122 }
123
124 // MS or SDFITS
125
126 // Extract the header from the table.
127 // this is a little different from what I have done
128 // before. Need to check with the Offline User Test data
129 STHeader hdr = in->getHeader();
130 //const Int nPol = hdr.npol;
131 //const Int nChan = hdr.nchan;
132 std::vector<uint> ifs = in->getIFNos();
133 int nIF = in->nif();//ifs.size();
134 Vector<uInt> nPol(nIF),nChan(nIF);
135 Vector<Bool> havexpol(nIF);
136 String fluxUnit = hdr.fluxunit;
137
138 nPol = 0;nChan = 0; havexpol = False;
139 for (uint i=0;i<ifs.size();++i) {
140 nPol(ifs[i]) = in->npol();
141 nChan(ifs[i]) = in->nchan(ifs[i]);
142 havexpol(ifs[i]) = nPol(ifs[i]) > 2;
143 }
144
145 const Table table = in->table();
146
147 // Create the output file and write static data.
148 Int status;
149 status = writer_->create(String(filename), hdr.observer, hdr.project,
150 hdr.antennaname, hdr.antennaposition,
151 hdr.obstype, hdr.fluxunit,
152 hdr.equinox, hdr.freqref,
153 nChan, nPol, havexpol, False);
154 if ( status ) {
155 throw(AipsError("Failed to create output file"));
156 }
157
158
159 Int count = 0;
160 PKSrecord pksrec;
161 pksrec.scanNo = 1;
162 // use spearate iterators to ensure renumbering of all numbers
163 TableIterator scanit(table, "SCANNO");
164 while (!scanit.pastEnd() ) {
165 Table stable = scanit.table();
166 TableIterator beamit(stable, "BEAMNO");
167 pksrec.beamNo = 1;
168 while (!beamit.pastEnd() ) {
169 Table btable = beamit.table();
170 MDirection::ScalarColumn dirCol(btable, "DIRECTION");
171 pksrec.direction = dirCol(0).getAngle("rad").getValue();
172 TableIterator cycit(btable, "CYCLENO");
173 ROArrayColumn<Double> srateCol(btable, "SCANRATE");
174 Vector<Double> sratedbl;
175 srateCol.get(0, sratedbl);
176 Vector<Float> srateflt(sratedbl.nelements());
177 convertArray(srateflt, sratedbl);
178 //pksrec.scanRate = srateflt;
179 pksrec.scanRate = sratedbl;
180 ROArrayColumn<Double> spmCol(btable, "SRCPROPERMOTION");
181 spmCol.get(0, pksrec.srcPM);
182 ROArrayColumn <Double> sdirCol(btable, "SRCDIRECTION");
183 sdirCol.get(0, pksrec.srcDir);
184 ROScalarColumn<Double> svelCol(btable, "SRCVELOCITY");
185 svelCol.get(0, pksrec.srcVel);
186 ROScalarColumn<uInt> bCol(btable, "BEAMNO");
187 pksrec.beamNo = bCol(0)+1;
188 pksrec.cycleNo = 1;
189 while (!cycit.pastEnd() ) {
190 Table ctable = cycit.table();
191 TableIterator ifit(ctable, "IFNO");
192 //MDirection::ScalarColumn dirCol(ctable, "DIRECTION");
193 //pksrec.direction = dirCol(0).getAngle("rad").getValue();
194 pksrec.IFno = 1;
195 while (!ifit.pastEnd() ) {
196 Table itable = ifit.table();
197 TableRow row(itable);
198 // use the first row to fill in all the "metadata"
199 const TableRecord& rec = row.get(0);
200 ROArrayColumn<Float> specCol(itable, "SPECTRA");
201 pksrec.IFno = rec.asuInt("IFNO")+1;
202 uInt nchan = specCol(0).nelements();
203 Double crval,crpix;
204 //Vector<Double> restfreq;
205 Float tmp0,tmp1,tmp2,tmp3,tmp4;
206 String tcalt;
207 Vector<String> stmp0, stmp1;
208 in->frequencies().getEntry(crpix,crval, pksrec.freqInc,
209 rec.asuInt("FREQ_ID"));
210 in->focus().getEntry(pksrec.focusAxi, pksrec.focusTan,
211 pksrec.focusRot, tmp0,tmp1,tmp2,tmp3,tmp4,
212 rec.asuInt("FOCUS_ID"));
213 in->molecules().getEntry(pksrec.restFreq,stmp0,stmp1,
214 rec.asuInt("MOLECULE_ID"));
215 in->tcal().getEntry(pksrec.tcalTime, pksrec.tcal,
216 rec.asuInt("TCAL_ID"));
217 in->weather().getEntry(pksrec.temperature, pksrec.pressure,
218 pksrec.humidity, pksrec.windSpeed,
219 pksrec.windAz, rec.asuInt("WEATHER_ID"));
220 Double pixel = Double(nchan/2);
221 pksrec.refFreq = (pixel-crpix)*pksrec.freqInc + crval;
222 // ok, now we have nrows for the n polarizations in this table
223 polConversion(pksrec.spectra, pksrec.flagged, pksrec.xPol, itable);
224 pksrec.tsys = tsysFromTable(itable);
225 // dummy data
226 uInt npol = pksrec.spectra.ncolumn();
227
228 pksrec.mjd = rec.asDouble("TIME");
229 pksrec.interval = rec.asDouble("INTERVAL");
230 pksrec.fieldName = rec.asString("FIELDNAME");
231 pksrec.srcName = rec.asString("SRCNAME");
232 pksrec.obsType = hdr.obstype;
233 pksrec.bandwidth = nchan * abs(pksrec.freqInc);
234 pksrec.azimuth = rec.asFloat("AZIMUTH");
235 pksrec.elevation = rec.asFloat("ELEVATION");
236 pksrec.parAngle = rec.asFloat("PARANGLE");
237 pksrec.refBeam = rec.asInt("REFBEAMNO") + 1;
238 pksrec.sigma.resize(npol);
239 pksrec.sigma = 0.0f;
240 pksrec.calFctr.resize(npol);
241 pksrec.calFctr = 0.0f;
242 pksrec.baseLin.resize(npol,2);
243 pksrec.baseLin = 0.0f;
244 pksrec.baseSub.resize(npol,9);
245 pksrec.baseSub = 0.0f;
246 pksrec.xCalFctr = 0.0;
247
248 status = writer_->write(pksrec);
249 if ( status ) {
250 writer_->close();
251 throw(AipsError("STWriter: Failed to export Scantable."));
252 }
253 ++count;
254 //++pksrec.IFno;
255 ++ifit;
256 }
257 ++pksrec.cycleNo;
258 ++cycit;
259 }
260 //++pksrec.beamNo;
261 ++beamit;
262 }
263 ++pksrec.scanNo;
264 ++scanit;
265 }
266 ostringstream oss;
267 oss << "STWriter: wrote " << count << " rows to " << filename;
268 pushLog(String(oss));
269 writer_->close();
270 //if MS2 delete POINTING table exists and copy the one in the keyword
271 if ( format_ == "MS2" ) {
272 replacePtTab(table, filename);
273 }
274 return 0;
275}
276
277Vector<Float> STWriter::tsysFromTable(const Table& tab)
278{
279 ROArrayColumn<Float> tsysCol(tab, "TSYS");
280 Vector<Float> out(tab.nrow());
281 Vector<Float> tmp;
282 for (uInt i=0; i<tab.nrow(); ++i) {
283 tmp.resize();
284 tmp = tsysCol(i);
285 out[i] = tmp[0];
286 }
287 return out;
288}
289
290void STWriter::polConversion( Matrix< Float >& specs, Matrix< uChar >& flags,
291 Vector< Complex > & xpol, const Table & tab )
292{
293 String poltype = tab.keywordSet().asString("POLTYPE");
294 if ( poltype == "stokes") {
295 String msg = "poltype = " + poltype + " not yet supported in output.";
296 throw(AipsError(msg));
297 }
298 ROArrayColumn<Float> specCol(tab, "SPECTRA");
299 ROArrayColumn<uChar> flagCol(tab, "FLAGTRA");
300 uInt nchan = specCol(0).nelements();
301 uInt ncol = (tab.nrow()==1 ? 1: 2 );
302 specs.resize(nchan, ncol);
303 flags.resize(nchan, ncol);
304 // the linears
305 for (uInt i=0; i<ncol; ++i) {
306 specs.column(i) = specCol(i);
307 flags.column(i) = flagCol(i);
308 }
309 // now the complex if exists
310 Bool hasxpol = False;
311 xpol.resize();
312 if ( tab.nrow() == 4 ) {
313 hasxpol = True;
314 xpol.resize(nchan);
315 Vector<Float> reals, imags;
316 reals = specCol(2); imags = specCol(3);
317 for (uInt k=0; k < nchan; ++k) {
318 xpol[k] = Complex(reals[k], imags[k]);
319 }
320 }
321}
322
323// For writing MS data, if there is the reference to
324// original pointing table it replace it by it.
325void STWriter::replacePtTab (const Table& tab, const std::string& fname)
326{
327 String oldPtTabName = fname;
328 oldPtTabName.append("/POINTING");
329 if ( tab.keywordSet().isDefined("POINTING") ) {
330 String PointingTab = tab.keywordSet().asString("POINTING");
331 if ( Table::isReadable(PointingTab) ) {
332 Table newPtTab(PointingTab, Table::Old);
333 newPtTab.copy(oldPtTabName, Table::New);
334 ostringstream oss;
335 oss << "STWriter: copied " <<PointingTab << " to " << fname;
336 pushLog(String(oss));
337 }
338 }
339}
340
341}
Note: See TracBrowser for help on using the repository browser.