source: trunk/src/SDMemTable.h@ 418

Last change on this file since 418 was 418, checked in by kil064, 20 years ago

First go at handling polarimetric data

  • Add STOKES (virtual) column
  • Add function getStokesSpectrum
  • Add function rotateXYPhase
  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
File size: 9.1 KB
Line 
1//#---------------------------------------------------------------------------
2//# SDMemTable.h: A MemoryTable container for single dish integrations
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:
30//#---------------------------------------------------------------------------
31#ifndef SDMEMTABLE_H
32#define SDMEMTABLE_H
33
34// STL
35#include <string>
36#include <vector>
37// AIPS++
38 #include <casa/aips.h>
39#include <casa/Arrays/MaskedArray.h>
40#include <casa/BasicSL/String.h>
41#include <coordinates/Coordinates/SpectralCoordinate.h>
42#include <tables/Tables/Table.h>
43#include <tables/Tables/ArrayColumn.h>
44#include <tables/Tables/ScalarColumn.h>
45
46#include "SDDefs.h"
47
48
49
50namespace asap {
51
52class SDContainer;
53class SDHeader;
54class SDFrequencyTable;
55
56
57
58
59class SDMemTable {
60public:
61 // create a new (empty) SDMemTable
62 SDMemTable();
63 // create a SDMemTable from an (aips++) table on disk
64 SDMemTable(const std::string& name);
65
66 // Copy Construct a SDMemTable, if clear==True only header and
67 // skeleton are copied, otherwise the whole table is copied.
68 SDMemTable(const SDMemTable& other, casa::Bool clear=casa::False);
69
70 // Copy Construct (copy semantics) a SDMemTable, give a scanid constraint
71 // see also getScan()
72 SDMemTable(const casa::Table& tab, const std::string& expr);
73
74 // Assignment operator (copy semantics)
75 SDMemTable &operator=(const SDMemTable& other);
76
77 virtual ~SDMemTable();
78
79 // put data from meta conatiner into the table
80 bool putSDContainer(const SDContainer& sdc);
81 bool putSDHeader(const SDHeader& sdh);
82 bool putSDFreqTable(const SDFrequencyTable& sdft);
83
84 //get the data wrapped up in a meta container
85
86 SDContainer getSDContainer(casa::uInt whichRow=0) const;
87 SDHeader getSDHeader() const;
88
89 // Get SD Frequency table.
90 SDFrequencyTable getSDFreqTable() const;
91
92 // get spectrum,mask and tsys for the given row, at the selected
93 // cursor - all as stl vectors
94 virtual std::vector<float> getSpectrum(casa::Int whichRow=0) const;
95 virtual std::vector<bool> getMask(casa::Int whichRow=0) const;
96 virtual std::vector<float> getStokesSpectrum(casa::Int whichRow=0,
97 casa::Bool doPol=casa::False) const;
98
99 virtual casa::Float getTsys(casa::Int whichRow=0) const;
100 // get all as aips++ Vectors
101 virtual void getSpectrum(casa::Vector<casa::Float>& spectrum,
102 casa::Int whichRow=0) const;
103 //virtual void getMask(Vector<Bool>& mask,Int whichRow=0) const;
104
105 std::vector<double> getRestFreqs() const;
106
107 // get info for current row
108 // if whichRow == -1 the Header time is given
109 std::string getTime(casa::Int whichRow=0,
110 casa::Bool showDate=casa::False) const ;
111 casa::MEpoch getEpoch(casa::Int whichRow=0) const;
112 casa::MDirection getDirection(casa::Int whichRow=0,
113 casa::Bool refBeam=casa::False) const;
114//
115 std::string getSourceName(casa::Int whichRow=0) const;
116 double getInterval(casa::Int whichRow=0) const;
117
118 virtual void setSpectrum(std::vector<float> spectrum, int whichRow=0);
119 virtual void setCoordInfo(std::vector<string> theinfo);
120
121// Set RestFreqID. source="" and IF=-1 means select all
122 virtual casa::Bool setRestFreqs (const casa::Vector<casa::Double>& restFreqs,
123 const casa::String& unit,
124 const std::vector<std::string>& lines,
125 const casa::String& source,
126 casa::Int whichIF=-1);
127
128// List lines
129 void spectralLines() const;
130
131// Get/Set flux unit
132 std::string getFluxUnit() const;
133 void setFluxUnit (const std::string& unit);
134
135// Set Instrument
136 void setInstrument (const std::string& instrument);
137
138 // set the current value
139 virtual bool setIF(casa::Int whichIF=0);
140 virtual bool setBeam(casa::Int whichBeam=0);
141 virtual bool setPol(casa::Int whichPol=0);
142
143 // REset cursor to 0
144 virtual void resetCursor();
145
146 //sets the user mask applied to all spectra
147 virtual bool setMask(std::vector<int> whichChans);
148 // Hard flags the current spectrum, not reversible
149 virtual void flag(int whichRow);
150
151 // return the currently selected values
152 virtual casa::Int getIF() const { return IFSel_; }
153 virtual casa::Int getBeam() const { return beamSel_; }
154 virtual casa::Int getPol() const { return polSel_; }
155
156 // returns unit, conversion frame, doppler, base-frame
157 virtual std::vector<std::string> getCoordInfo() const;
158
159 // number of scans in table
160 virtual casa::Int nScan() const;
161
162 // get a summary of the table
163 virtual std::string summary(bool verbose=false) const;
164
165 std::vector<std::string> history(int whichRow=0) const;
166 bool appendHistory(const std::string& hist, int whichRow=0);
167 // write to disk as aips++ table
168 void makePersistent(const std::string& filename);
169
170 // get a new SDMemTable containing all rows with the same give SCANID
171 SDMemTable getScan(casa::Int scanID) const;
172 SDMemTable getSource(const std::string& source) const;
173
174 const casa::TableRecord& getHeader() const {return table_.keywordSet();}
175 // get a handle to the "raw" aips++ table
176 const casa::Table& table() const { return table_; }
177
178 // return the number of values
179 casa::Int nBeam() const;
180 casa::Int nIF() const;
181 casa::Int nPol() const;
182 casa::Int nChan() const;
183
184 // return the number of rows (integrations) in the table
185 casa::Int nRow() const { return table_.nrow(); }
186
187 // return a row as a Masked array, internally converting uChar flags
188 // to bool mask
189 casa::MaskedArray<casa::Float> rowAsMaskedArray(casa::uInt whichRow,
190 casa::Bool useSelection =
191 casa::False) const;
192
193 // Return SC, setting only the basic construction state (i.e.
194 // no conversion or velocity or rest frequency state).
195 // Specify the index of the FreqID you want
196 casa::SpectralCoordinate getSpectralCoordinate(casa::uInt whichIdx) const;
197
198 // Return SC. Set velocity conversion state (unit,doppler), and
199 // rest frequency. If row number given (>=0), also set
200 // frame conversion layer (needs direction & time which require row)
201 casa::SpectralCoordinate getSpectralCoordinate(casa::uInt freqID,
202 casa::uInt restFreqID,
203 casa::uInt row) const;
204
205 // Set just the reference value, pixel and increment into the table
206 // No other state is extracted.
207 casa::Bool setCoordinate(const casa::SpectralCoordinate& speccord,
208 casa::uInt whichIdx);
209
210 casa::Int nCoordinates() const;
211
212 std::vector<double> getAbcissa(int whichRow=0) const;
213 std::string getAbcissaString(casa::Int whichRow=0) const;
214
215// Get global reference types
216 casa::MDirection::Types getDirectionReference() const;
217 casa::MEpoch::Types getTimeReference() const;
218
219// Get global antenna position
220 casa::MPosition getAntennaPosition() const;
221
222// Rotate phase of XY correlation by specified value (degrees)
223 void rotateXYPhase (casa::Float angle);
224
225// Helper function to check instrument (antenna) name and give enum
226 static Instrument convertInstrument(const casa::String& instrument,
227 casa::Bool throwIt);
228
229private:
230 // utility func for nice printout
231 casa::String formatSec(casa::Double x) const;
232 casa::String formatDirection(const casa::MDirection& md) const;
233 std::vector<float> getFloatSpectrum (const casa::Array<casa::Float>& arr) const;
234 void setup();
235 void attach();
236 void renumber();
237 // the current cursor into the array
238 casa::Int IFSel_,beamSel_,polSel_;
239 std::vector<bool> chanMask_;
240 // the underlying memory table
241 casa::Table table_;
242
243// Cached Columns to avoid reconstructing them for each row get/put
244 casa::ScalarColumn<casa::Double> timeCol_, integrCol_;
245 casa::ScalarColumn<casa::Float> azCol_, elCol_, paraCol_;
246 casa::ScalarColumn<casa::String> srcnCol_, fldnCol_, tcaltCol_;
247 casa::ScalarColumn<casa::Int> scanCol_, rbeamCol_;
248 casa::ArrayColumn<casa::Float> specCol_, tsCol_, tcalCol_;
249 casa::ArrayColumn<casa::Double> dirCol_;
250 casa::ArrayColumn<casa::uChar> flagsCol_;
251 casa::ArrayColumn<casa::uInt> freqidCol_, restfreqidCol_;
252 casa::ArrayColumn<casa::String> histCol_;
253 casa::ArrayColumn<casa::Float> stokesCol_;
254};
255
256}// namespace
257#endif
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