1 | //#--------------------------------------------------------------------------- |
---|
2 | //# SDReader.cc: A class to read single dish spectra from SDFITS, RPFITS |
---|
3 | //#--------------------------------------------------------------------------- |
---|
4 | //# Copyright (C) 2004 |
---|
5 | //# Malte Marquarding, 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: |
---|
30 | //#--------------------------------------------------------------------------- |
---|
31 | #include <atnf/PKSIO/PKSreader.h> |
---|
32 | |
---|
33 | #include "SDContainer.h" |
---|
34 | #include "SDReader.h" |
---|
35 | |
---|
36 | using namespace atnf_sd; |
---|
37 | |
---|
38 | SDReader::SDReader() : |
---|
39 | reader_(0), |
---|
40 | table_(new SDMemTable()) { |
---|
41 | cursor_ = 0; |
---|
42 | timestamp_ = 0; |
---|
43 | } |
---|
44 | |
---|
45 | SDReader::SDReader(CountedPtr<SDMemTable> tbl) : |
---|
46 | reader_(0), |
---|
47 | table_(tbl) { |
---|
48 | cursor_ = 0; |
---|
49 | timestamp_ = 0; |
---|
50 | } |
---|
51 | |
---|
52 | SDReader::~SDReader() { |
---|
53 | delete reader_;reader_ =0; |
---|
54 | } |
---|
55 | |
---|
56 | void SDReader::reset() { |
---|
57 | cursor_ = 0; |
---|
58 | timestamp_ = 0; |
---|
59 | open(filename_); |
---|
60 | } |
---|
61 | |
---|
62 | void SDReader::open(const std::string& filename) { |
---|
63 | if (reader_) delete reader_; reader_ = 0; |
---|
64 | Bool haveBase, haveSpectra, haveXPol; |
---|
65 | //Int nChan, nIF, nPol; |
---|
66 | String inName(filename); |
---|
67 | String format; |
---|
68 | Vector<Bool> beams; |
---|
69 | if ((reader_ = getPKSreader(inName, 0, False, format, beams, nIF_, |
---|
70 | nChan_, nPol_, haveBase, haveSpectra, |
---|
71 | haveXPol)) == 0) { |
---|
72 | cerr << "PKSreader failed" << endl; |
---|
73 | } |
---|
74 | if (!haveSpectra) { |
---|
75 | delete reader_; |
---|
76 | reader_ = 0; |
---|
77 | cerr << "Spectral data absent." << endl; |
---|
78 | return; |
---|
79 | } |
---|
80 | nBeam_ = beams.nelements(); |
---|
81 | cout << "Reading " + format + " format from " + inName << endl; |
---|
82 | cout << "nChannels = " << nChan_ << ", " << "nPol = " << nPol_ << endl |
---|
83 | << "nIF = " << nIF_ << endl |
---|
84 | << "nBeams = " << nBeam_ << endl; |
---|
85 | |
---|
86 | // Get basic parameters. |
---|
87 | Double bandwidth, refFreq; |
---|
88 | header_ = SDHeader(); |
---|
89 | header_.nchan = nChan_; |
---|
90 | header_.npol = nPol_; |
---|
91 | header_.nbeam = nBeam_; |
---|
92 | |
---|
93 | //cerr << " getting header ..." << endl; |
---|
94 | Int status = reader_->getHeader(header_.observer, header_.project, |
---|
95 | header_.antennaname, header_.antennaposition, |
---|
96 | header_.obstype,header_.equinox, |
---|
97 | header_.freqref, |
---|
98 | header_.utc, header_.reffreq, |
---|
99 | header_.bandwidth); |
---|
100 | if (status) { |
---|
101 | delete reader_; |
---|
102 | reader_ = 0; |
---|
103 | cerr << "Failed to get data description." << endl; |
---|
104 | return; |
---|
105 | } |
---|
106 | header_.print(); |
---|
107 | if ((header_.obstype).matches("*SW*")) { |
---|
108 | // need robust way here - probably read ahead of next timestamp |
---|
109 | cout << "Header indicates frequency switched observation.\n" |
---|
110 | "setting # of IFs = 1 " << endl; |
---|
111 | nIF_ = 1; |
---|
112 | } |
---|
113 | header_.nif = nIF_; |
---|
114 | // Apply selection criteria. |
---|
115 | cerr << "applying selection criteria..." << endl; |
---|
116 | Vector<Int> start(nIF_, 1); |
---|
117 | Vector<Int> end(nIF_, 0); |
---|
118 | Vector<Int> ref; |
---|
119 | Vector<Bool> beamSel(nBeam_,True); |
---|
120 | Vector<Bool> IFsel(nIF_,True); |
---|
121 | reader_->select(beamSel, IFsel, start, end, ref, True, haveXPol); |
---|
122 | cerr << "open finished" << endl; |
---|
123 | } |
---|
124 | |
---|
125 | int SDReader::read(const std::vector<int>& seq) { |
---|
126 | cerr << "SDReader::read" << endl; |
---|
127 | int status = 0; |
---|
128 | |
---|
129 | Int beamNo, IFno, refBeam, scanNo; |
---|
130 | Float azimuth, elevation, focusAxi, focusRot, focusTan, |
---|
131 | humidity, parAngle, pressure, temperature, windAz, windSpeed; |
---|
132 | Double bandwidth, freqInc, interval, mjd, refFreq, srcVel; |
---|
133 | String fieldName, srcName, tcalTime; |
---|
134 | Vector<Float> calFctr, sigma, tcal, tsys; |
---|
135 | Matrix<Float> baseLin, baseSub; |
---|
136 | Vector<Double> direction(2), scanRate(2), srcDir(2), srcPM(2); |
---|
137 | Matrix<Float> spectra; |
---|
138 | Matrix<uChar> flagtra; |
---|
139 | Complex xCalFctr; |
---|
140 | Vector<Complex> xPol; |
---|
141 | mjd = 0; |
---|
142 | uInt n = seq.size(); |
---|
143 | cerr << header_.nif << ", " << header_.nbeam << endl; |
---|
144 | uInt stepsize = header_.nif*header_.nbeam; |
---|
145 | cerr << "SDReader stepsize = " << stepsize << endl; |
---|
146 | uInt scanid = 0; |
---|
147 | String prevName = "_noname_";// temporary until scanid is present |
---|
148 | uInt seqi = 0; |
---|
149 | //SDFrequencyTable sdft(); |
---|
150 | Bool getAll = False; |
---|
151 | if (seq[n-1] == -1) getAll = True; |
---|
152 | while ( (cursor_ <= seq[n-1]) || getAll) { |
---|
153 | // only needs to be create if in seq |
---|
154 | SDContainer sc(header_.nbeam,header_.nif,header_.nchan,header_.npol); |
---|
155 | |
---|
156 | // iterate over one correlator integration cycle = nBeam*nIF |
---|
157 | for (uInt row=0; row < stepsize; row++) { |
---|
158 | |
---|
159 | //cerr << "SDReader starting reading process row = " << row << endl; |
---|
160 | |
---|
161 | // add scanid from GROUP field -- this will remove the need for |
---|
162 | // stepsize as well |
---|
163 | // spectra(nChan,nPol)!!! |
---|
164 | status = reader_->read(scanNo, mjd, interval, fieldName, srcName, |
---|
165 | srcDir, srcPM, srcVel, IFno, refFreq, |
---|
166 | bandwidth, freqInc, tcal, tcalTime, |
---|
167 | azimuth, elevation, parAngle, focusAxi, |
---|
168 | focusTan, focusRot, temperature, pressure, |
---|
169 | humidity, windSpeed, windAz, refBeam, |
---|
170 | beamNo, direction, scanRate, |
---|
171 | tsys, sigma, calFctr, baseLin, baseSub, |
---|
172 | spectra, flagtra, xCalFctr, xPol); |
---|
173 | |
---|
174 | // cerr << "SDReader row read"<< endl; |
---|
175 | |
---|
176 | if (status) { |
---|
177 | if (status == -1) { |
---|
178 | // EOF. |
---|
179 | if (row < stepsize-1) cerr << "incomplete integration data." << endl; |
---|
180 | cerr << "EOF" << endl; |
---|
181 | return status; |
---|
182 | } |
---|
183 | } |
---|
184 | // if in the given list |
---|
185 | if ( cursor_ == seq[seqi]) { |
---|
186 | |
---|
187 | //cerr << "SDReader cursor == seq[i]" << endl; |
---|
188 | |
---|
189 | // add integration cycle |
---|
190 | if (row==0) { |
---|
191 | //add invariant info: scanNo, mjd, interval, fieldName, |
---|
192 | //srcName, azimuth, elevation, parAngle, focusAxi, focusTan, |
---|
193 | //focusRot, temperature, pressure, humidity, windSpeed, |
---|
194 | //windAz srcDir, srcPM, srcVel |
---|
195 | } |
---|
196 | |
---|
197 | // cerr << "SDReader::read - before SDContainer" << endl; |
---|
198 | |
---|
199 | // add specific info |
---|
200 | // IFno beamNo are 1-relative |
---|
201 | // refPix = nChan/2+1 in Integer arith.! |
---|
202 | uInt refPix = header_.nchan/2+1; |
---|
203 | //uInt frqslot = sdft.addFrequency(refPix, refFreq, freqInc); |
---|
204 | |
---|
205 | if ( srcName != prevName ) {//temp |
---|
206 | scanid++;//temp |
---|
207 | prevName = srcName;//temp |
---|
208 | }//temp |
---|
209 | |
---|
210 | sc.sourcename = srcName; |
---|
211 | sc.timestamp = mjd; |
---|
212 | sc.interval = interval; |
---|
213 | sc.scanid = scanid; |
---|
214 | //sc.setFrequencyMap(frqslot,IFno-1); |
---|
215 | sc.setSpectrum(spectra, beamNo-1, IFno-1); |
---|
216 | sc.setFlags(flagtra, beamNo-1, IFno-1); |
---|
217 | sc.setTsys(tsys, beamNo-1, IFno-1); |
---|
218 | //sc.addPointing(direction, beamNo-1); |
---|
219 | |
---|
220 | // cerr << "SDReader::read - after SDContainer" << endl; |
---|
221 | |
---|
222 | } |
---|
223 | } |
---|
224 | if (cursor_ == seq[seqi]) { |
---|
225 | // insert container into table/list |
---|
226 | table_->putSDContainer(sc); |
---|
227 | cout << "Reading integration " << seqi << endl; |
---|
228 | seqi++;// next in list |
---|
229 | } |
---|
230 | cursor_++; |
---|
231 | } |
---|
232 | return status; |
---|
233 | } |
---|