source: trunk/external/atnf/PKSIO/PKSSDwriter.cc@ 1459

Last change on this file since 1459 was 1452, checked in by Malte Marquarding, 16 years ago

update from livedata CVS

File size: 9.3 KB
Line 
1//#---------------------------------------------------------------------------
2//# PKSSDwriter.cc: Class to write Parkes multibeam data to an SDFITS file.
3//#---------------------------------------------------------------------------
4//# Copyright (C) 2000-2008
5//# Associated Universities, Inc. Washington DC, USA.
6//#
7//# This library is free software; you can redistribute it and/or modify it
8//# under the terms of the GNU Library General Public License as published by
9//# the Free Software Foundation; either version 2 of the License, or (at your
10//# option) any later version.
11//#
12//# This library is distributed in the hope that it will be useful, but
13//# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
14//# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
15//# License for more details.
16//#
17//# You should have received a copy of the GNU Library General Public License
18//# along with this library; if not, write to the Free Software Foundation,
19//# Inc., 675 Massachusetts Ave, Cambridge, MA 02139, USA.
20//#
21//# Correspondence concerning AIPS++ should be addressed as follows:
22//# Internet email: aips2-request@nrao.edu.
23//# Postal address: AIPS++ Project Office
24//# National Radio Astronomy Observatory
25//# 520 Edgemont Road
26//# Charlottesville, VA 22903-2475 USA
27//#
28//# $Id: PKSSDwriter.cc,v 19.15 2008-11-17 06:56:50 cal103 Exp $
29//#---------------------------------------------------------------------------
30
31#include <atnf/PKSIO/MBrecord.h>
32#include <atnf/PKSIO/PKSSDwriter.h>
33
34#include <casa/stdio.h>
35#include <casa/Quanta/MVTime.h>
36
37//--------------------------------------------------- PKSSDwriter::PKSSDwriter
38
39// Default constructor.
40
41PKSSDwriter::PKSSDwriter()
42{
43 // By default, messages are written to stderr.
44 initMsg();
45}
46
47//-------------------------------------------------- PKSSDwriter::~PKSSDwriter
48
49// Destructor.
50
51PKSSDwriter::~PKSSDwriter()
52{
53 close();
54}
55
56//-------------------------------------------------------- PKSSDwriter::setMsg
57
58// Set message disposition. If fd is non-zero messages will be written
59// to that file descriptor, else stored for retrieval by getMsg().
60
61Int PKSSDwriter::setMsg(FILE *fd)
62{
63 PKSmsg::setMsg(fd);
64 cSDwriter.setMsg(fd);
65
66 return 0;
67}
68
69//-------------------------------------------------------- PKSSDwriter::create
70
71// Create the SDFITS file and and write static data.
72
73Int PKSSDwriter::create(
74 const String sdName,
75 const String observer,
76 const String project,
77 const String antName,
78 const Vector<Double> antPosition,
79 const String obsMode,
80 const String bunit,
81 const Float equinox,
82 const String dopplerFrame,
83 const Vector<uInt> nChan,
84 const Vector<uInt> nPol,
85 const Vector<Bool> haveXPol,
86 const Bool haveBase)
87{
88 // Clear the message stack.
89 clearMsg();
90
91 double antPos[3];
92 antPos[0] = antPosition(0);
93 antPos[1] = antPosition(1);
94 antPos[2] = antPosition(2);
95
96 cNIF = nChan.nelements();
97 if (nPol.nelements() != cNIF || haveXPol.nelements() != cNIF) {
98 cerr << "PKSSDwriter::create: "
99 << "Inconsistent number of IFs for nChan, nPol, and/or haveXPol."
100 << endl;
101 return 1;
102 }
103
104 cNChan.assign(nChan);
105 cNPol.assign(nPol);
106
107 cHaveXPol.resize(cNIF);
108 for (uInt iIF = 0; iIF < cNIF; iIF++) {
109 // Convert Bool -> uInt.
110 cHaveXPol(iIF) = haveXPol(iIF) ? 1 : 0;
111 }
112
113 cHaveBase = haveBase;
114
115 // Storage in the trivial cNChan, cNPol, and cHaveXPol arrays should always
116 // be contiguous so the pointer returned by getStorage() shouldn't need to
117 // be deleted via freeStorage() (i.e. deleteIt always returned False). This
118 // storage will, of course, be deleted when the PKSwriter object is deleted.
119 Bool deleteIt;
120 Int status = cSDwriter.create((char *)sdName.chars(),
121 (char *)observer.chars(), (char *)project.chars(),
122 (char *)antName.chars(), antPos, (char *)obsMode.chars(),
123 (char *)bunit.chars(), equinox, (char *)dopplerFrame.chars(), cNIF,
124 (int *)cNChan.getStorage(deleteIt),
125 (int *)cNPol.getStorage(deleteIt),
126 (int *)cHaveXPol.getStorage(deleteIt), (int)cHaveBase, 1);
127 logMsg(cSDwriter.getMsg());
128 cSDwriter.clearMsg();
129 if (status) {
130 cSDwriter.deleteFile();
131 close();
132 }
133
134 return status;
135}
136
137//--------------------------------------------------------- PKSSDwriter::write
138
139// Write the next data record.
140
141Int PKSSDwriter::write(
142 const PKSrecord &pksrec)
143{
144 // Do basic checks.
145 Int IFno = pksrec.IFno;
146 uInt iIF = IFno - 1;
147 if (IFno < 1 || Int(cNIF) < IFno) {
148 cerr << "PKSDwriter::write: "
149 << "Invalid IF number " << IFno
150 << " (maximum " << cNIF << ")." << endl;
151 return 1;
152 }
153
154 uInt nChan = pksrec.spectra.nrow();
155 if (nChan != cNChan(iIF)) {
156 cerr << "PKSDwriter::write: "
157 << "Wrong number of channels for IF " << IFno << "," << endl
158 << " "
159 << "got " << nChan << " should be " << cNChan(iIF) << "." << endl;
160 return 1;
161 }
162
163 uInt nPol = pksrec.spectra.ncolumn();
164 if (nPol != cNPol(iIF)) {
165 cerr << "PKSDwriter::write: "
166 << "Wrong number of polarizations for IF " << IFno << "," << endl
167 << " "
168 << "got " << nPol << " should be " << cNPol(iIF) << "." << endl;
169 return 1;
170 }
171
172 // Extract calendar information from mjd.
173 MVTime time(pksrec.mjd);
174 Int year = time.year();
175 Int month = time.month();
176 Int day = time.monthday();
177
178 // Transfer data to a single-IF MBrecord.
179 MBrecord mbrec(1);
180
181 // Start with basic beam- and IF-independent bookkeeping information.
182 mbrec.scanNo = pksrec.scanNo;
183 mbrec.cycleNo = pksrec.cycleNo;
184
185 sprintf(mbrec.datobs, "%4.4d-%2.2d-%2.2d", year, month, day);
186 mbrec.utc = fmod(pksrec.mjd, 1.0) * 86400.0;
187 mbrec.exposure = float(pksrec.interval);
188
189 strncpy(mbrec.srcName, (char *)pksrec.srcName.chars(), 17);
190 mbrec.srcRA = pksrec.srcDir(0);
191 mbrec.srcDec = pksrec.srcDir(1);
192
193 mbrec.restFreq = pksrec.restFreq;
194
195 strncpy(mbrec.obsType, (char *)pksrec.obsType.chars(), 16);
196
197 // Now beam-dependent parameters.
198 mbrec.beamNo = pksrec.beamNo;
199 mbrec.ra = pksrec.direction(0);
200 mbrec.dec = pksrec.direction(1);
201 mbrec.raRate = pksrec.scanRate(0);
202 mbrec.decRate = pksrec.scanRate(1);
203
204 // Now IF-dependent parameters.
205 mbrec.nIF = 1;
206 mbrec.IFno[0] = IFno;
207 mbrec.nChan[0] = nChan;
208 mbrec.nPol[0] = nPol;
209
210 mbrec.fqRefPix[0] = (nChan/2) + 1;
211 mbrec.fqRefVal[0] = pksrec.refFreq;
212 mbrec.fqDelt[0] = pksrec.freqInc;
213
214 // Now the data itself.
215 for (uInt i = 0; i < pksrec.tsys.nelements(); i++) {
216 mbrec.tsys[0][i] = pksrec.tsys(i);
217 }
218
219 for (uInt ipol = 0; ipol < nPol; ipol++) {
220 mbrec.calfctr[0][ipol] = pksrec.calFctr(ipol);
221 }
222
223 if (cHaveXPol(iIF)) {
224 mbrec.xcalfctr[0][0] = pksrec.xCalFctr.real();
225 mbrec.xcalfctr[0][1] = pksrec.xCalFctr.imag();
226 } else {
227 mbrec.xcalfctr[0][0] = 0.0f;
228 mbrec.xcalfctr[0][1] = 0.0f;
229 }
230
231 if (cHaveBase) {
232 mbrec.haveBase = 1;
233
234 for (uInt ipol = 0; ipol < nPol; ipol++) {
235 mbrec.baseLin[0][ipol][0] = pksrec.baseLin(0,ipol);
236 mbrec.baseLin[0][ipol][1] = pksrec.baseLin(1,ipol);
237
238 for (uInt j = 0; j < pksrec.baseSub.nrow(); j++) {
239 mbrec.baseSub[0][ipol][j] = pksrec.baseSub(j,ipol);
240 }
241 for (uInt j = pksrec.baseSub.nrow(); j < 9; j++) {
242 mbrec.baseSub[0][ipol][j] = 0.0f;
243 }
244 }
245
246 } else {
247 mbrec.haveBase = 0;
248 }
249
250 Bool delSpectra = False;
251 const Float *specstor = pksrec.spectra.getStorage(delSpectra);
252 mbrec.spectra[0] = (float *)specstor;
253
254 Bool delFlagged = False;
255 const uChar *flagstor = pksrec.flagged.getStorage(delFlagged);
256 mbrec.flagged[0] = (unsigned char *)flagstor;
257
258 Bool delXPol = False;
259 const Complex *xpolstor;
260 if (cHaveXPol(iIF)) {
261 xpolstor = pksrec.xPol.getStorage(delXPol);
262 } else {
263 xpolstor = 0;
264 }
265 mbrec.xpol[0] = (float *)xpolstor;
266
267 // Finish off with system calibration parameters.
268 mbrec.extraSysCal = 1;
269 mbrec.refBeam = pksrec.refBeam;
270 for (uInt i = 0; i < pksrec.tcal.nelements(); i++) {
271 mbrec.tcal[0][i] = pksrec.tcal(i);
272 }
273 strncpy(mbrec.tcalTime, (char *)pksrec.tcalTime.chars(), 16);
274 mbrec.azimuth = pksrec.azimuth;
275 mbrec.elevation = pksrec.elevation;
276 mbrec.parAngle = pksrec.parAngle;
277 mbrec.focusAxi = pksrec.focusAxi;
278 mbrec.focusTan = pksrec.focusTan;
279 mbrec.focusRot = pksrec.focusRot;
280 mbrec.temp = pksrec.temperature;
281 mbrec.pressure = pksrec.pressure;
282 mbrec.humidity = pksrec.humidity;
283 mbrec.windSpeed = pksrec.windSpeed;
284 mbrec.windAz = pksrec.windAz;
285
286 Int status = cSDwriter.write(mbrec);
287 logMsg(cSDwriter.getMsg());
288 cSDwriter.clearMsg();
289 if (status) {
290 status = 1;
291 }
292
293 pksrec.spectra.freeStorage(specstor, delSpectra);
294 pksrec.flagged.freeStorage(flagstor, delFlagged);
295 pksrec.xPol.freeStorage(xpolstor, delXPol);
296
297 return status;
298}
299
300//------------------------------------------------------- PKSSDwriter::history
301
302// Write a history record.
303
304Int PKSSDwriter::history(const String text)
305{
306 return cSDwriter.history((char *)text.chars());
307}
308
309Int PKSSDwriter::history(const char *text)
310{
311 return cSDwriter.history((char *)text);
312}
313
314//--------------------------------------------------------- PKSSDwriter::close
315
316// Close the SDFITS file.
317
318void PKSSDwriter::close()
319{
320 cSDwriter.close();
321 logMsg(cSDwriter.getMsg());
322 cSDwriter.clearMsg();
323}
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