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 901 2006-03-10 02:29:22Z 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/Table.h> |
---|
45 | #include <tables/Tables/TableIter.h> |
---|
46 | #include <tables/Tables/TableRow.h> |
---|
47 | #include <tables/Tables/ArrayColumn.h> |
---|
48 | |
---|
49 | //#include "SDFITSImageWriter.h" |
---|
50 | //#include "STAsciiWriter.h" |
---|
51 | #include "STHeader.h" |
---|
52 | |
---|
53 | #include "STWriter.h" |
---|
54 | |
---|
55 | using namespace casa; |
---|
56 | namespace asap { |
---|
57 | |
---|
58 | STWriter::STWriter(const std::string &format) |
---|
59 | { |
---|
60 | cFormat = format; |
---|
61 | String t(cFormat); |
---|
62 | t.upcase(); |
---|
63 | if (t== "MS2") { |
---|
64 | cWriter = new PKSMS2writer(); |
---|
65 | } else if (t== "SDFITS") { |
---|
66 | cWriter = new PKSSDwriter(); |
---|
67 | } else if (t== "FITS") { |
---|
68 | cWriter = 0; |
---|
69 | } else if (t== "ASCII") { |
---|
70 | cWriter = 0; |
---|
71 | } else { |
---|
72 | throw (AipsError("Unrecognized Format")); |
---|
73 | } |
---|
74 | } |
---|
75 | |
---|
76 | STWriter::~STWriter() |
---|
77 | { |
---|
78 | if (cWriter) { |
---|
79 | delete cWriter; |
---|
80 | } |
---|
81 | } |
---|
82 | |
---|
83 | Int STWriter::setFormat(const std::string &format) |
---|
84 | { |
---|
85 | if (format != cFormat) { |
---|
86 | if (cWriter) delete cWriter; |
---|
87 | } |
---|
88 | |
---|
89 | cFormat = format; |
---|
90 | String t(cFormat); |
---|
91 | t.upcase(); |
---|
92 | if (t== "MS2") { |
---|
93 | cWriter = new PKSMS2writer(); |
---|
94 | } else if (t== "SDFITS") { |
---|
95 | cWriter = new PKSSDwriter(); |
---|
96 | } else if (t== "FITS") { |
---|
97 | cWriter = 0; |
---|
98 | } else if (t== "ASCII") { |
---|
99 | cWriter = 0; |
---|
100 | } else { |
---|
101 | throw (AipsError("Unrecognized Format")); |
---|
102 | } |
---|
103 | return 0; |
---|
104 | } |
---|
105 | |
---|
106 | Int STWriter::write(const CountedPtr<Scantable> in, |
---|
107 | const std::string &filename) |
---|
108 | { |
---|
109 | |
---|
110 | // Image FITS |
---|
111 | |
---|
112 | if (cFormat=="FITS") { |
---|
113 | // Bool verbose = True; |
---|
114 | // SDFITSImageWriter iw; |
---|
115 | // if (iw.write(*in, filename, verbose)) { |
---|
116 | // return 0; |
---|
117 | // } else { |
---|
118 | // return 1; |
---|
119 | // } |
---|
120 | } else if (cFormat=="ASCII") { |
---|
121 | /*SDAsciiWriter iw; |
---|
122 | if (iw.write(*in, filename)) { |
---|
123 | return 0; |
---|
124 | } else { |
---|
125 | return 1; |
---|
126 | }*/ |
---|
127 | } |
---|
128 | |
---|
129 | // MS or SDFITS |
---|
130 | |
---|
131 | // Extract the header from the table. |
---|
132 | STHeader hdr = in->getHeader(); |
---|
133 | const Int nPol = hdr.npol; |
---|
134 | const Int nChan = hdr.nchan; |
---|
135 | |
---|
136 | const Table table = in->table(); |
---|
137 | // ROArrayColumn<uInt> freqIDCol(table, "FREQ_ID"); |
---|
138 | // Vector<uInt> freqIDs; |
---|
139 | |
---|
140 | // Create the output file and write static data. |
---|
141 | Int status; |
---|
142 | if (status = cWriter->create(filename, hdr.observer, hdr.project, |
---|
143 | hdr.antennaname, hdr.antennaposition, |
---|
144 | hdr.obstype, hdr.equinox, hdr.freqref, |
---|
145 | nChan, nPol, False, False)) { |
---|
146 | throw(AipsError("Failed to create output file")); |
---|
147 | } |
---|
148 | |
---|
149 | Double srcVel = 0.0; |
---|
150 | |
---|
151 | String fieldName, srcName, tcalTime; |
---|
152 | Vector<Float> calFctr, sigma, tcal, tsys; |
---|
153 | Vector<Double> direction(2), scanRate(2), srcDir(2), srcPM(2,0.0); |
---|
154 | Matrix<Float> spectra; |
---|
155 | Matrix<uChar> flagtra; |
---|
156 | Complex xCalFctr; |
---|
157 | Int count = 0; |
---|
158 | Int scanno = 1; |
---|
159 | // use spearate iterators to ensure renumbering of all numbers |
---|
160 | TableIterator scanit(table, "SCANNO"); |
---|
161 | while (!scanit.pastEnd() ) { |
---|
162 | Table stable = scanit.table(); |
---|
163 | TableIterator beamit(table, "BEAMNO"); |
---|
164 | Int beamno = 1; |
---|
165 | while (!beamit.pastEnd() ) { |
---|
166 | Table btable = beamit.table(); |
---|
167 | // position only varies by beam |
---|
168 | MDirection::ScalarColumn dirCol(btable, "DIRECTION"); |
---|
169 | Vector<Double> direction = dirCol(0).getAngle("rad").getValue(); |
---|
170 | TableIterator ifit(btable, "IFNO"); |
---|
171 | Int ifno = 1; |
---|
172 | while (!ifit.pastEnd() ) { |
---|
173 | Table itable = ifit.table(); |
---|
174 | TableIterator cycit(itable, "CYCLENO"); |
---|
175 | Int cycno = 1; |
---|
176 | while (!cycit.pastEnd() ) { |
---|
177 | Table ctable = cycit.table(); |
---|
178 | TableRow row(ctable); |
---|
179 | // use the first row to fill in all the "metadata" |
---|
180 | const TableRecord& rec = row.get(0); |
---|
181 | ROArrayColumn<Float> specCol(ctable, "SPECTRA"); |
---|
182 | uInt nchan = specCol(0).nelements(); |
---|
183 | Double cdelt,crval,crpix, restfreq; |
---|
184 | Float focusAxi, focusTan, focusRot, |
---|
185 | temperature, pressure, humidity, windSpeed, windAz; |
---|
186 | Vector<Float> tcalval; |
---|
187 | String tmp,tmp2, tcalt; |
---|
188 | in->frequencies().getEntry(crpix,crval,cdelt, rec.asuInt("FREQ_ID")); |
---|
189 | in->molecules().getEntry(restfreq,tmp,tmp2,rec.asuInt("RESTFREQ_ID")); |
---|
190 | in->tcal().getEntry(tcalt,tcalval,rec.asuInt("TCAL_ID")); |
---|
191 | in->weather().getEntry(temperature, pressure, humidity, |
---|
192 | windSpeed, windAz, |
---|
193 | rec.asuInt("WEATHER_ID")); |
---|
194 | Double pixel = Double(nchan/2); |
---|
195 | Double refFreqNew = (pixel-crpix)*cdelt + crval; |
---|
196 | // ok, now we have nrows for the n polarizations in this table |
---|
197 | Matrix<Float> specs; |
---|
198 | Matrix<uChar> flags; |
---|
199 | Vector<Complex> xpol; |
---|
200 | polConversion(specs, flags, xpol, ctable); |
---|
201 | Vector<Float> tsys = tsysFromTable(ctable); |
---|
202 | // dummy data |
---|
203 | uInt npol = specs.ncolumn(); |
---|
204 | Matrix<Float> baseLin(npol,2, 0.0f); |
---|
205 | Matrix<Float> baseSub(npol,9, 0.0f); |
---|
206 | Complex xCalFctr; |
---|
207 | Vector<Double> scanRate(2, 0.0); |
---|
208 | Vector<Float> sigma(npol, 0.0f); |
---|
209 | Vector<Float> calFctr(npol, 0.0f); |
---|
210 | |
---|
211 | |
---|
212 | if (status = cWriter->write(scanno, cycno, rec.asDouble("TIME"), |
---|
213 | rec.asDouble("INTERVAL"), |
---|
214 | rec.asString("FIELDNAME"), |
---|
215 | rec.asString("SRCNAME"), |
---|
216 | direction, |
---|
217 | srcPM, srcVel, // not in scantable yet |
---|
218 | ifno, |
---|
219 | refFreqNew, nchan*abs(cdelt), cdelt, |
---|
220 | restfreq, |
---|
221 | tcal, |
---|
222 | tcalt, |
---|
223 | rec.asFloat("AZIMUTH"), |
---|
224 | rec.asFloat("ELEVATION"), |
---|
225 | rec.asFloat("PARANGLE"), |
---|
226 | focusAxi, focusTan, focusRot,// |
---|
227 | temperature, |
---|
228 | pressure, humidity, windSpeed, windAz, |
---|
229 | rec.asInt("REFBEAM"), beamno, |
---|
230 | direction, |
---|
231 | scanRate,// not in scantable |
---|
232 | tsys, |
---|
233 | sigma, calFctr,// not in scantable |
---|
234 | baseLin, baseSub,// not in scantable |
---|
235 | specs, flags, |
---|
236 | xCalFctr,// |
---|
237 | xpol) |
---|
238 | ) { |
---|
239 | cerr << "Error writing output file." << endl; |
---|
240 | return 1; |
---|
241 | } |
---|
242 | |
---|
243 | ++cycno; |
---|
244 | ++cycit; |
---|
245 | } |
---|
246 | ++ifno; |
---|
247 | ++ifit; |
---|
248 | } |
---|
249 | ++beamno; |
---|
250 | ++beamit; |
---|
251 | } |
---|
252 | ++scanno; |
---|
253 | ++scanit; |
---|
254 | } |
---|
255 | ostringstream oss; |
---|
256 | oss << "STWriter: wrote " << count << " rows to " << filename << endl; |
---|
257 | pushLog(String(oss)); |
---|
258 | cWriter->close(); |
---|
259 | |
---|
260 | return 0; |
---|
261 | } |
---|
262 | |
---|
263 | Vector<Float> STWriter::tsysFromTable(const Table& tab) |
---|
264 | { |
---|
265 | ROArrayColumn<Float> tsysCol(tab, "TSYS"); |
---|
266 | Vector<Float> out(tab.nrow()); |
---|
267 | Vector<Float> tmp; |
---|
268 | for (uInt i=0; i<tab.nrow(); ++i) { |
---|
269 | tmp = tsysCol(i); |
---|
270 | out[i] = tmp[0]; |
---|
271 | } |
---|
272 | } |
---|
273 | |
---|
274 | void STWriter::polConversion( Matrix< Float >& specs, Matrix< uChar >& flags, |
---|
275 | Vector< Complex > & xpol, const Table & tab ) |
---|
276 | { |
---|
277 | TableRow row(tab); |
---|
278 | String poltype = tab.keywordSet().asString("POLTYPE"); |
---|
279 | if ( poltype != "linear") |
---|
280 | String msg = "poltype = " + poltype + " not yet supported in output."; |
---|
281 | throw(AipsError("msg")); |
---|
282 | // use the first row to fill in all the "metadata" |
---|
283 | const TableRecord& rec = row.get(0); |
---|
284 | ROArrayColumn<Float> specCol(tab, "SPECTRA"); |
---|
285 | ROArrayColumn<uChar> flagCol(tab, "FLAGTRA"); |
---|
286 | uInt nchan = specCol(0).nelements(); |
---|
287 | uInt ncols = (tab.nrow()==1 ? 1: 2 ); |
---|
288 | specs.resize(nchan, ncols); |
---|
289 | flags.resize(nchan, ncols); |
---|
290 | // the linears |
---|
291 | for (uInt i=0; i<ncols; ++i) { |
---|
292 | specs.column(i) = specCol(i); |
---|
293 | flags.column(i) = flagCol(i); |
---|
294 | } |
---|
295 | // now the complex if exists |
---|
296 | Bool hasxpol = False; |
---|
297 | xpol.resize(); |
---|
298 | if ( tab.nrow() == 4 ) { |
---|
299 | hasxpol = True; |
---|
300 | xpol.resize(nchan); |
---|
301 | Vector<Float> reals, imags; |
---|
302 | reals = specCol(2); imags = specCol(3); |
---|
303 | for (uInt k=0; k < nchan; ++k) { |
---|
304 | xpol[k] = Complex(reals[k], imags[k]); |
---|
305 | } |
---|
306 | } |
---|
307 | } |
---|
308 | |
---|
309 | |
---|
310 | } |
---|