Line data Source code
1 : //# VPSkyJones.cc: Implementation for VPSkyJones
2 : //# Copyright (C) 1996,1997,1998,1999,2000,2001,2002,2003
3 : //# Associated Universities, Inc. Washington DC, USA.
4 : //#
5 : //# This library is free software; you can redistribute it and/or modify it
6 : //# under the terms of the GNU Library General Public License as published by
7 : //# the Free Software Foundation; either version 2 of the License, or (at your
8 : //# option) any later version.
9 : //#
10 : //# This library is distributed in the hope that it will be useful, but WITHOUT
11 : //# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 : //# FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
13 : //# License for more details.
14 : //#
15 : //# You should have received a copy of the GNU Library General Public License
16 : //# along with this library; if not, write to the Free Software Foundation,
17 : //# Inc., 675 Massachusetts Ave, Cambridge, MA 02139, USA.
18 : //#
19 : //# Correspondence concerning AIPS++ should be adressed as follows:
20 : //# Internet email: casa-feedback@nrao.edu.
21 : //# Postal address: AIPS++ Project Office
22 : //# National Radio Astronomy Observatory
23 : //# 520 Edgemont Road
24 : //# Charlottesville, VA 22903-2475 USA
25 : //#
26 : //#
27 : //# $Id$
28 :
29 : #include <casacore/casa/aips.h>
30 : #include <casacore/casa/BasicSL/Complex.h>
31 : #include <synthesis/TransformMachines/PBMath.h>
32 : #include <synthesis/TransformMachines2/VPSkyJones.h>
33 :
34 : #include <casacore/ms/MeasurementSets/MeasurementSet.h>
35 : #include <casacore/tables/Tables.h>
36 : #include <casacore/tables/Tables/TableRecord.h>
37 : #include <casacore/ms/MeasurementSets/MSColumns.h>
38 :
39 : #include <casacore/measures/Measures/Stokes.h>
40 :
41 : #include <casacore/casa/BasicSL/Constants.h>
42 :
43 : #include <components/ComponentModels/Flux.h>
44 : #include <components/ComponentModels/ComponentShape.h>
45 :
46 : #include <casacore/images/Images/ImageInterface.h>
47 : #include <casacore/lattices/Lattices/LatticeStepper.h>
48 : #include <casacore/lattices/Lattices/LatticeIterator.h>
49 :
50 : #include <casacore/coordinates/Coordinates/CoordinateSystem.h>
51 : #include <casacore/coordinates/Coordinates/DirectionCoordinate.h>
52 : #include <casacore/coordinates/Coordinates/SpectralCoordinate.h>
53 : #include <casacore/coordinates/Coordinates/StokesCoordinate.h>
54 : #include <casacore/coordinates/Coordinates/Projection.h>
55 :
56 : #include <casacore/casa/Utilities/Assert.h>
57 :
58 : using namespace casacore;
59 : namespace casa { //# NAMESPACE CASA - BEGIN
60 :
61 : namespace refim {// REFIM namespace
62 :
63 : using namespace casacore;
64 : using namespace casa;
65 : using namespace casacore;
66 : using namespace casa::refim;
67 0 : VPSkyJones::VPSkyJones(const MSColumns& msc, Table& tab,
68 : const Quantity &parAngleInc,
69 : BeamSquint::SquintType doSquint,
70 0 : const Quantity &skyPositionThreshold)
71 0 : : BeamSkyJones(parAngleInc, doSquint,skyPositionThreshold)
72 : {
73 0 : LogIO os(LogOrigin("VPSkyJones", "VPSkyJones"));
74 :
75 0 : const uInt nrow = tab.nrow();
76 :
77 0 : ScalarColumn<String> telCol(tab, "telescope");
78 0 : ScalarColumn<Int> antCol(tab, "antenna");
79 0 : ScalarColumn<TableRecord> recCol(tab, "pbdescription");
80 :
81 :
82 0 : for (uInt i=0; i < nrow; ++i) {
83 : // if-operator condition checks that the names are not redundant
84 0 : if (indexTelescope(telCol(i))<0) {
85 :
86 :
87 :
88 :
89 0 : String name;
90 0 : String commonpb;
91 0 : if(recCol(i).isDefined("name") && (recCol(i).asString("name") != "REFERENCE")){
92 :
93 0 : const Int nameFieldNumber=recCol(i).fieldNumber("name");
94 0 : if (nameFieldNumber!=-1)
95 0 : recCol(i).get(nameFieldNumber,name);
96 :
97 0 : if (name == "COMMONPB") {
98 0 : const Int commonPBFieldNumber=recCol(i).fieldNumber("commonpb");
99 0 : AlwaysAssert(commonPBFieldNumber!=-1,AipsError);
100 0 : recCol(i).get(commonPBFieldNumber, commonpb );
101 : }
102 :
103 0 : if (commonpb == "DEFAULT") {
104 0 : String band;
105 : PBMath::CommonPB whichPB;
106 0 : String commonPBName;
107 0 : ScalarColumn<String> telescopesCol(msc.observation().telescopeName());
108 0 : Quantity freq( msc.spectralWindow().refFrequency()(0), "Hz");
109 0 : String tele = telCol(i);
110 0 : if(tele=="") {
111 : os << "Telescope name for row " << i << " of " << tab.tableName()
112 0 : << " is blank : cannot find correct primary beam model" << LogIO::EXCEPTION;
113 : }
114 : else {
115 0 : PBMath::whichCommonPBtoUse( tele, freq, band, whichPB, commonPBName );
116 : }
117 :
118 0 : PBMath myPBMath(tele, false, freq );
119 0 : setPBMath (telCol(i), myPBMath);
120 :
121 0 : } else {
122 0 : PBMath myPBMath( recCol(i));
123 0 : setPBMath (telCol(i), myPBMath);
124 0 : }
125 : }
126 :
127 0 : }
128 :
129 : }
130 0 : };
131 :
132 :
133 0 : VPSkyJones::VPSkyJones(const MSColumns& msc,
134 : Bool makePBs,
135 : const Quantity &parAngleInc,
136 : BeamSquint::SquintType doSquint,
137 0 : const Quantity &skyPositionThreshold)
138 0 : : BeamSkyJones(parAngleInc, doSquint, skyPositionThreshold)
139 : {
140 0 : LogIO os(LogOrigin("VPSkyJones", "VPSkyJones"));
141 :
142 0 : if (makePBs) {
143 0 : ScalarColumn<String> telescopesCol(msc.observation().telescopeName());
144 :
145 :
146 0 : for (uInt i=0; i < telescopesCol.nrow(); ++i) {
147 0 : String telescope_p = telescopesCol(i);
148 : // if-operator condition checks that the names are not redundant
149 0 : if (indexTelescope(telescope_p)<0) {
150 : // Ultimately, we need to get the Beam parameters from the MS.beamSubTable,
151 : // but until then we will use this: figure it out from Telescope and Freq
152 0 : String band;
153 : PBMath::CommonPB whichPB;
154 0 : String commonPBName;
155 : // This frequency is ONLY required to determine which PB model to use:
156 : // The VLA, the ATNF, and WSRT have frequency - dependent PB models
157 0 : Quantity freq( msc.spectralWindow().refFrequency()(0), "Hz");
158 :
159 0 : if((telescope_p==" ") || (telescope_p=="")) {
160 0 : whichPB=PBMath::UNKNOWN;
161 : }
162 : else {
163 0 : PBMath::whichCommonPBtoUse( telescope_p, freq, band, whichPB, commonPBName );
164 : }
165 :
166 0 : if(whichPB != PBMath::UNKNOWN){
167 0 : os << "PB used " << commonPBName << LogIO::POST;
168 0 : PBMath myPBMath(telescope_p, false, freq );
169 0 : setPBMath (telescope_p, myPBMath);
170 0 : }
171 : else{
172 : //lets do it by diameter
173 0 : os << "PB used determined from dish-diameter" << LogIO::POST;
174 0 : Double diam=msc.antenna().dishDiameter()(0);
175 0 : PBMath myPBMath(diam, false, freq);
176 0 : setPBMath(telescope_p, myPBMath);
177 :
178 0 : }
179 :
180 :
181 :
182 0 : }
183 0 : }
184 0 : }
185 0 : };
186 :
187 :
188 0 : VPSkyJones::VPSkyJones(const String& telescope,
189 : PBMath::CommonPB commonPBType,
190 : const Quantity &parAngleInc,
191 : BeamSquint::SquintType doSquint,
192 0 : const Quantity &skyPositionThreshold)
193 0 : : BeamSkyJones(parAngleInc, doSquint,skyPositionThreshold)
194 : {
195 0 : LogIO os(LogOrigin("VPSkyJones", "VPSkyJones"));
196 :
197 :
198 : // we need a way to do this for multiple telescope cases
199 0 : String telescope_p = telescope;
200 0 : PBMath myPBMath(commonPBType);
201 0 : setPBMath (telescope_p, myPBMath);
202 :
203 0 : };
204 :
205 :
206 :
207 :
208 0 : VPSkyJones::VPSkyJones(const String& telescope,
209 : PBMath& myPBMath,
210 : const Quantity &parAngleInc,
211 : BeamSquint::SquintType doSquint,
212 0 : const Quantity &skyPositionThreshold)
213 0 : : BeamSkyJones(parAngleInc, doSquint,skyPositionThreshold)
214 : {
215 0 : LogIO os(LogOrigin("VPSkyJones", "VPSkyJones"));
216 :
217 :
218 : // we need a way to do this for multiple telescope cases
219 0 : String telescope_p = telescope;
220 0 : setPBMath (telescope_p, myPBMath);
221 :
222 0 : };
223 :
224 :
225 : } //END of REFIM
226 : } //# NAMESPACE CASA - END
227 :
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