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 822 2006-02-16 23:05:16Z mar637 $ |
---|
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/PKSMS2writer.h> |
---|
42 | #include <atnf/PKSIO/PKSSDwriter.h> |
---|
43 | |
---|
44 | #include <tables/Tables/ArrayColumn.h> |
---|
45 | |
---|
46 | |
---|
47 | |
---|
48 | |
---|
49 | #include "SDContainer.h" |
---|
50 | #include "SDMemTable.h" |
---|
51 | #include "STWriter.h" |
---|
52 | #include "SDFITSImageWriter.h" |
---|
53 | #include "SDAsciiWriter.h" |
---|
54 | #include "SDPol.h" |
---|
55 | |
---|
56 | using namespace casa; |
---|
57 | using namespace asap; |
---|
58 | |
---|
59 | //--------------------------------------------------------- STWriter::STWriter |
---|
60 | |
---|
61 | // Default constructor. |
---|
62 | |
---|
63 | STWriter::STWriter(const std::string &format) |
---|
64 | { |
---|
65 | cFormat = format; |
---|
66 | // |
---|
67 | String t(cFormat); |
---|
68 | t.upcase(); |
---|
69 | if (t== "MS2") { |
---|
70 | cWriter = new PKSMS2writer(); |
---|
71 | } else if (t== "SDFITS") { |
---|
72 | cWriter = new PKSSDwriter(); |
---|
73 | } else if (t== "FITS") { |
---|
74 | cWriter = 0; |
---|
75 | } else if (t== "ASCII") { |
---|
76 | cWriter = 0; |
---|
77 | } else { |
---|
78 | throw (AipsError("Unrecognized Format")); |
---|
79 | } |
---|
80 | } |
---|
81 | |
---|
82 | //-------------------------------------------------------- STWriter::~STWriter |
---|
83 | |
---|
84 | // Destructor. |
---|
85 | |
---|
86 | STWriter::~STWriter() |
---|
87 | { |
---|
88 | if (cWriter) { |
---|
89 | delete cWriter; |
---|
90 | } |
---|
91 | } |
---|
92 | |
---|
93 | //-------------------------------------------------------- STWriter::setFormat |
---|
94 | |
---|
95 | // Reset the output format. |
---|
96 | |
---|
97 | Int STWriter::setFormat(const std::string &format) |
---|
98 | { |
---|
99 | if (format != cFormat) { |
---|
100 | if (cWriter) delete cWriter; |
---|
101 | } |
---|
102 | // |
---|
103 | cFormat = format; |
---|
104 | String t(cFormat); |
---|
105 | t.upcase(); |
---|
106 | if (t== "MS2") { |
---|
107 | cWriter = new PKSMS2writer(); |
---|
108 | } else if (t== "SDFITS") { |
---|
109 | cWriter = new PKSSDwriter(); |
---|
110 | } else if (t== "FITS") { |
---|
111 | cWriter = 0; |
---|
112 | } else if (t== "ASCII") { |
---|
113 | cWriter = 0; |
---|
114 | } else { |
---|
115 | throw (AipsError("Unrecognized Format")); |
---|
116 | } |
---|
117 | return 0; |
---|
118 | } |
---|
119 | |
---|
120 | //------------------------------------------------------------ STWriter::write |
---|
121 | |
---|
122 | // Write an SDMemTable to file in the desired format, closing the file when |
---|
123 | // finished. |
---|
124 | |
---|
125 | Int STWriter::write(const CountedPtr<SDMemTable> in, |
---|
126 | const std::string &filename, Bool toStokes) |
---|
127 | { |
---|
128 | |
---|
129 | // Image FITS |
---|
130 | |
---|
131 | if (cFormat=="FITS") { |
---|
132 | Bool verbose = True; |
---|
133 | SDFITSImageWriter iw; |
---|
134 | if (iw.write(*in, filename, verbose, toStokes)) { |
---|
135 | return 0; |
---|
136 | } else { |
---|
137 | return 1; |
---|
138 | } |
---|
139 | } else if (cFormat=="ASCII") { |
---|
140 | SDAsciiWriter iw; |
---|
141 | if (iw.write(*in, filename, toStokes)) { |
---|
142 | return 0; |
---|
143 | } else { |
---|
144 | return 1; |
---|
145 | } |
---|
146 | } |
---|
147 | |
---|
148 | // MS or SDFITS |
---|
149 | |
---|
150 | // Extract the header from the table. |
---|
151 | SDHeader hdr = in->getSDHeader(); |
---|
152 | const Int nPol = hdr.npol; |
---|
153 | const Int nChan = hdr.nchan; |
---|
154 | |
---|
155 | // Get Freq table |
---|
156 | |
---|
157 | SDFrequencyTable sdft = in->getSDFreqTable(); |
---|
158 | Vector<Double> restFreqs; |
---|
159 | String restFreqUnit; |
---|
160 | sdft.restFrequencies(restFreqs, restFreqUnit); |
---|
161 | Double restFreq = 0.0; |
---|
162 | if (restFreqs.nelements()>0) { |
---|
163 | Quantum<Double> rF(restFreqs(0), Unit(restFreqUnit)); |
---|
164 | restFreq = rF.getValue(Unit("Hz")); |
---|
165 | } |
---|
166 | |
---|
167 | // Table columns |
---|
168 | |
---|
169 | const Table table = in->table(); |
---|
170 | ROArrayColumn<uInt> freqIDCol(table, "FREQID"); |
---|
171 | Vector<uInt> freqIDs; |
---|
172 | |
---|
173 | // Create the output file and write static data. |
---|
174 | Int status; |
---|
175 | if (status = cWriter->create(filename, hdr.observer, hdr.project, |
---|
176 | hdr.antennaname, hdr.antennaposition, |
---|
177 | hdr.obstype, hdr.equinox, hdr.freqref, |
---|
178 | nChan, nPol, False, False)) { |
---|
179 | throw(AipsError("Failed to create output file")); |
---|
180 | } |
---|
181 | |
---|
182 | Vector<Double> srcPM(2, 0.0); |
---|
183 | Double srcVel = 0.0; |
---|
184 | |
---|
185 | Array<Float> spectra, tSys, stokes; |
---|
186 | Array<uChar> flags; |
---|
187 | Bool doLinear = True; |
---|
188 | |
---|
189 | String fieldName, srcName, tcalTime; |
---|
190 | Vector<Float> calFctr, sigma, tcal, tsys; |
---|
191 | Vector<Double> direction(2), scanRate(2), srcDir(2), srcPM(2,0.0); |
---|
192 | Matrix<Float> spectra; |
---|
193 | Matrix<uChar> flagtra; |
---|
194 | Complex xCalFctr; |
---|
195 | Int count = 0; |
---|
196 | Int scanno = 1; |
---|
197 | // use spearate iterators to ensure renumbering of all numbers |
---|
198 | TableIterator scanit(table, "SCANNO"); |
---|
199 | while (!scanit.pastEnd() ) { |
---|
200 | Table stable = scanit.table(); |
---|
201 | TableIterator beamit(table, "BEAMNO"); |
---|
202 | Int beamno = 1; |
---|
203 | while (!beamit.pastEnd() ) { |
---|
204 | Table btable = beamit.table(); |
---|
205 | TableIterator ifit(btable, "IFNO"); |
---|
206 | Int ifno = 1; |
---|
207 | while (!ifit.pastEnd() ) { |
---|
208 | Table itable = ifit.table(); |
---|
209 | TableIterator cycit(itable, "CYCLENO"); |
---|
210 | Int cycno = 1; |
---|
211 | while (!cycit.pastEnd() ) { |
---|
212 | Table ctable = cycit.table(); |
---|
213 | TableRow row(ctable); |
---|
214 | // use the first row to fill in all the "metadata" |
---|
215 | const TableRecord& rec = row.record(0); |
---|
216 | ROArrayColumn<Float> specCol(ctable, "SPECTRA"); |
---|
217 | uInt nchan = specCol(0).nelements(); |
---|
218 | Double cdelt,crval,crpix, restfreq; |
---|
219 | String tmp,tmp2; |
---|
220 | in->frequencies().getEntry(crpix,crval,cdelt, rec.asuInt("FREQ_ID")); |
---|
221 | in->molecules().getEntry(restfreq,tmp,tmp2,rec.asuInt("RESTFREQ_ID")); |
---|
222 | Double pixel = Double(nchan/2); |
---|
223 | Double refFreqNew = (pixel-crpix)*cdelt + crval; |
---|
224 | // ok, now we have nrows for the n polarizations in this table |
---|
225 | Matrix<Float> specs; |
---|
226 | Matrix<uChar> flags; |
---|
227 | Vector<Complex> xpol; |
---|
228 | polConversion(specs, flags, xpol, ctable); |
---|
229 | // dummy data |
---|
230 | uInt nPol = specs.ncolumns(); |
---|
231 | Matrix<Float> baseLin(npol,2, 0.0f); |
---|
232 | Matrix<Float> baseSub(npol,9, 0.0f); |
---|
233 | Complex xCalFctr; |
---|
234 | Vector<Double> scanRate(2, 0.0); |
---|
235 | Vector<Float> sigma(npol, 0.0f); |
---|
236 | Vector<Float> calFctr(npol, 0.0f); |
---|
237 | |
---|
238 | |
---|
239 | if (status = cWriter->write(scano, cycno, rec.asDouble("TIME"), |
---|
240 | rec.asDouble("INTERVAL"), |
---|
241 | rec.asString("FIELDNAME"), |
---|
242 | rec.asString("SRCNAME"), |
---|
243 | direction ,// |
---|
244 | srcPM, srcVel, // not in scantable yet |
---|
245 | ifno, |
---|
246 | refFreqNew, nchan*abs(cdelt), cdelt, |
---|
247 | restfreq, |
---|
248 | tcal,// |
---|
249 | tcaltime,// |
---|
250 | rec.asFloat("AZIMUTH"), |
---|
251 | rec.asFloat("ELEVATION"), |
---|
252 | rec.asFloat("PARANGLE"), |
---|
253 | focusAxi, focusTan, focusRot,// |
---|
254 | temperature,// |
---|
255 | pressure, humidity, windSpeed, windAz,// |
---|
256 | rec.asInt("REFBEAM"), beamno, |
---|
257 | direction,// |
---|
258 | scanRate,// not in scantable |
---|
259 | tSys, // |
---|
260 | sigma, calFctr,// not in scantable |
---|
261 | baseLin, baseSub,// not in scantable |
---|
262 | specs, flags, |
---|
263 | xCalFctr,// |
---|
264 | xpol) |
---|
265 | ) { |
---|
266 | cerr << "Error writing output file." << endl; |
---|
267 | return 1; |
---|
268 | } |
---|
269 | |
---|
270 | ++cycno; |
---|
271 | ++cycit; |
---|
272 | } |
---|
273 | ++ifno; |
---|
274 | ++ifit; |
---|
275 | } |
---|
276 | ++beamno; |
---|
277 | ++beamit; |
---|
278 | } |
---|
279 | ++scanno; |
---|
280 | ++scanit; |
---|
281 | } |
---|
282 | ostringstream oss; |
---|
283 | oss << "STWriter: wrote " << count << " rows to " << filename << endl; |
---|
284 | pushLog(String(oss)); |
---|
285 | cWriter->close(); |
---|
286 | |
---|
287 | return 0; |
---|
288 | } |
---|
289 | |
---|
290 | void STWriter::polConversion( Matrix< Float >& specs, Matrix< Float >& flags, |
---|
291 | Vector< Complex > & xpol, const Table & tab ) |
---|
292 | { |
---|
293 | TableRow row(tab); |
---|
294 | String poltype = tab.keywordSet().asString("POLTYPE"); |
---|
295 | if ( poltype != "linear") |
---|
296 | String msg = "poltype = " + poltype + " not yet supported in output."; |
---|
297 | throw(AipsError("msg")); |
---|
298 | // use the first row to fill in all the "metadata" |
---|
299 | const TableRecord& rec = row.record(0); |
---|
300 | ROArrayColumn<Float> specCol(ctable, "SPECTRA"); |
---|
301 | ROArrayColumn<uChar> flagCol(ctable, "FLAGTRA"); |
---|
302 | uInt nchan = specCol(0).nelements(); |
---|
303 | uInt ncols = ( ctable.nrow()==1 ? 1: 2 ); |
---|
304 | specs.resize(nchan, ncols); |
---|
305 | flags.resize(nchan, ncols); |
---|
306 | // the linears |
---|
307 | for (uInt i=0; i<ncols; ++i) { |
---|
308 | specs.column(i) = specCol(i); |
---|
309 | flags.column(i) = flagCol(i); |
---|
310 | } |
---|
311 | // now the complex if exists |
---|
312 | Vector<Complex> xpol; |
---|
313 | Bool hasxpol = False; |
---|
314 | xpol.resize(); |
---|
315 | if ( ctable.nrow() == 4 ) { |
---|
316 | hasxpol = True; |
---|
317 | xpol.resize(nchan); |
---|
318 | Vector<Float> reals, imags; |
---|
319 | reals = specCol(2); imags = specCol(3); |
---|
320 | for (uInt k=0; k < nchan; ++k) { |
---|
321 | ` xpol[k] = Complex(reals[k], imags[k]); |
---|
322 | } |
---|
323 | } |
---|
324 | } |
---|