Line data Source code
1 : //# VisBuffer.h: buffer for iterating through casacore::MS in large blocks
2 : //# Copyright (C) 1996,1997,1998,1999,2000,2002,2003
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 addressed as follows:
20 : //# Internet email: aips2-request@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 : #ifndef MSVIS_VISBUFFER2_H
28 : #define MSVIS_VISBUFFER2_H
29 :
30 : #include <casacore/casa/aips.h>
31 :
32 : //#include <casa/Arrays/Cube.h>
33 : //#include <casa/Arrays/Vector.h>
34 : //#include <casa/Arrays/Matrix.h>
35 : //#include <casa/BasicSL/Complex.h>
36 : #include <casacore/casa/BasicSL/Complexfwd.h>
37 : #include <msvis/MSVis/VisBufferComponents2.h>
38 : //#include <msvis/MSVis/VisibilityIterator2.h>
39 : #include <casacore/measures/Measures/Stokes.h>
40 : #include <casacore/casa/Arrays/ArrayFwd.h>
41 : #include <casacore/casa/Exceptions/Error.h>
42 : #include <casacore/tables/Tables/RowNumbers.h>
43 :
44 : using casa::vi::VisBufferComponent2;
45 : using casa::vi::VisBufferComponents2;
46 :
47 : namespace casacore{
48 :
49 : template <typename T> class CountedPtr;
50 : class MDirection;
51 : template <typename T, Int N> class SquareMatrix;
52 : class MeasurementSet;
53 : }
54 :
55 : namespace casa { //# NAMESPACE CASA - BEGIN
56 :
57 : //#forward
58 :
59 : class CStokesVector;
60 :
61 : namespace ms {
62 :
63 : class MsRow;
64 : }
65 :
66 : namespace vi {
67 :
68 : class Subchunk;
69 : class ViImplementation2;
70 : class VisibilityIterator2;
71 : class WeightScaling;
72 : class SubtableColumns;
73 :
74 : // These are options to be applied to a VisBuffer, usually when it's created.
75 : // The intent is that these form a bit mask so that they can be used as
76 : // VbWritable | VbRekeyable, etc. So add the next one in as 2 * theLastOne.
77 :
78 : enum VisBufferOptions : int {VbNoOptions, VbWritable = 1, VbRekeyable = 2};
79 :
80 : //<summary>VisBuffer2s encapsulate one chunk of visibility data for processing.</summary>
81 : //
82 : // <use visibility=export>
83 : //
84 : // <reviewed reviewer="" date="" tests="" demos="">
85 :
86 : // <prerequisite>
87 : // <li> <linkto class="VisibilityIterator">VisibilityIterator</linkto>
88 : // <li> <linkto class="VbDirtyComponents">VbDirtyComponents</linkto>
89 : // </prerequisite>
90 : //
91 : // <etymology>
92 : // VisBuffer2 is a buffer for visibility data
93 : // </etymology>
94 : //
95 : //<synopsis>
96 : // The VisBuffer is designed to contain a small amount of visibility-related
97 : // data. The VisBuffer can be used in two somewhat distinct ways. The first
98 : // is as an integral (or attached) part of the VisibilityIterator and the second
99 : // is as a free or unattached object.
100 : //
101 : // Attached VisBuffer -- Each VisibilityIterator has a exactly one VisBuffer
102 : // attached to it. This VisBuffer is created and destroyed by the
103 : // VisibilityIterator. The role of an attached VB is to contain the data
104 : // currently "pointed to" by the VI. Because of this tight coupling between
105 : // an attached VI and its VB the operations that can be applied to a VisBuffer
106 : // are somewhat restricted in order to maintain the relationship between the
107 : // casacore::MeasurementSet's data and the data i the VisBuffer (failure to do so allows
108 : // obscure bugs to be created). As such the functions for averaging in either
109 : // the time or frequency axes is not permitted on an attached VB.
110 : //
111 : // Free VisBuffer -- A free VisBuffer is used to contain data that might not
112 : // correspond to the data in the MeasurementSet. The meaning of the data in
113 : // a free VisBuffer will depend on the user. Some obvious examples might be:
114 : // a VisBuffer used to resample or average frequencies together; creation of
115 : // "virtual" spectral windows which might reconnect frequencies that were
116 : // split into separate spectral windows becasue of hardware limitation; and
117 : // performing a time average of visibility data. Because the free VB is not
118 : // tightly coupled to a VI, it is the responsibility of the user to assign
119 : // meaningful values to some of the fields in the VB. For example, the user
120 : // averaging across time will need to decide what values ought to be reported
121 : // for the VisBuffer's timestamp, pointing angle, etc.
122 : //
123 : // Another possible attribute of a VisBuffer is "rekeyable". This is for when
124 : // the VisBuffer is being filled by client code rather than from an input MS.
125 : // Because of this, the enforcement of VisBuffer invariants is relaxed. Users
126 : // will be able to change row key fields (e.g., antenna1, data description id,
127 : // etc.) as well as change the shape of the data. The method validateShapes is
128 : // provided which will check that all modified shapes are consistent. This method
129 : // is automatically called by writeChangesBack and should also be called whenever
130 : // the construction process is complete and the VisBuffer is about to be released
131 : // for use; it's better to catch the error rather than letting an inconsistent
132 : // VisBuffer escape into consuming code.
133 : //
134 : //</synopsis>
135 : //
136 : //<todo>
137 : //</todo>
138 :
139 : class VisBuffer2 {
140 :
141 : friend class ViImplementation2;
142 : friend class VisibilityIteratorImpl2;
143 : friend class FinalTvi2;
144 : friend class TransformingVi2;
145 : friend class SimpleSimVi2;
146 :
147 : public:
148 :
149 : // make noncopyable...
150 : VisBuffer2( const VisBuffer2& ) = delete;
151 : VisBuffer2& operator=( const VisBuffer2& ) = delete;
152 :
153 : enum {FrameNotSpecified = -2};
154 :
155 54047 : VisBuffer2 () : associatedVi_p (nullptr) {}
156 :
157 : static VisBuffer2 * factory (VisBufferOptions vbOptions = VbNoOptions);
158 :
159 : // Used by framework
160 :
161 : // Destructor (detaches from VisIter)
162 :
163 54047 : virtual ~VisBuffer2() {}
164 :
165 : virtual ms::MsRow * getRow (casacore::Int row) const;
166 : virtual ms::MsRow * getRowMutable (casacore::Int row);
167 :
168 : //---------------------------------------------------------------------
169 : //
170 : // Copying methods
171 : //
172 : // These methods allow copying portions of the data between two
173 : // VisBuffers. Because of the complicated semantics of a VisBuffer the
174 : // assignment and copy-construction methods are not used as they are likely
175 : // to confuse VisBuffer users.
176 :
177 :
178 : // Copies all of the components from the specified VisBuffer into this one.
179 : // Uncached values will be cleared in this VB.
180 :
181 : virtual void copy (const VisBuffer2 & other, casacore::Bool fetchIfNeeded) = 0;
182 :
183 : // Copies the specified components (or just the ones in the cache if
184 : // fetchIfNeeded is false) from the specified VisBuffer into this one.
185 : // If this VB is not empty it will must have the same shape as the other
186 : // VB unless allowShapeChange is true; in that case this VB will change
187 : // changes to match the other VB flushing the cached data.
188 :
189 : virtual void copyComponents (const VisBuffer2 & other,
190 : const VisBufferComponents2 & components,
191 : casacore::Bool allowShapeChange = false,
192 : casacore::Bool fetchIfNeeded = true) = 0;
193 :
194 : // Copies the coordinate components (or just the ones in the cache if
195 : // fetchIfNeeded is false) from the specified VisBuffer into this one.
196 : // If this VB is not empty it will must have the same shape as the other
197 : // VB unless allowShapeChange is true; in that case this VB will change
198 : // changes to match the other VB flushing the cached data.
199 : // The basic coordinate components are:
200 : // Antenna1, Antenna2, ArrayId, DataDescriptionIds, FieldId, SpectralWindows,
201 : // casacore::Time, NRows, Feed1, Feed2
202 : // The directional coordinates (copied if includeDirections is true):
203 : // Direction1, Direction2, FeedPa1, FeedPa2
204 :
205 : virtual void copyCoordinateInfo(const VisBuffer2 * other,
206 : casacore::Bool includeDirections,
207 : casacore::Bool allowShapeChange = false,
208 : casacore::Bool fetchIfNeeded = true) = 0;
209 :
210 : virtual void setShape (casacore::Int nCorrelations, casacore::Int nChannels, casacore::rownr_t nRows, casacore::Bool clearCache = false) = 0;
211 : virtual void validateShapes () const = 0;
212 :
213 : // For attached VBs this returns the VI the VB is attached to. For free VBs
214 : // this method returns false. N.B.: Use of this method is deprecated.
215 :
216 : virtual const VisibilityIterator2 * getVi () const;
217 :
218 0 : virtual const casacore::MeasurementSet& ms() const { ThrowCc ("Should be overridden"); } // Kluge
219 0 : virtual const vi::SubtableColumns & subtableColumns () const { ThrowCc ("Should be overridden"); } // Kluge
220 : virtual casacore::Bool existsColumn (VisBufferComponent2 id) const = 0;
221 :
222 : virtual casacore::Bool isAttached () const = 0;
223 : virtual casacore::Bool isFillable () const = 0;
224 :
225 : //---------------------------------------------------------------------
226 : //
227 : // Dirty component methods
228 : //
229 : // The dirtyComponent methods support the data-flow approach to using
230 : // VisBuffers (the Visibility Processing Framework). In this approach
231 : // a VisBuffer is passed to successive processing nodes (e.g., applycal,
232 : // flagging, etc.) which operate on it and pass it on to the next node
233 : // in the algorithm. The dirtyComponents mechanism allows a processing
234 : // node to mark portions of the VisBuffer as modified. If the VisBuffer
235 : // reaches an write-to-disk node then the modified portions of the
236 : // VisBuffer will be written out. The user can also explicitly direct
237 : // that the changes be written out using the writeChangesBack method.
238 : //
239 : // Using a setter on a VisBuffer component will also set the dirty flag for
240 : // that component. Normally the user should not need to use these methods;
241 : // however, they are available in case unexpected situations should arise
242 : // in the future.
243 :
244 : virtual void writeChangesBack () = 0;
245 : virtual void initWeightSpectrum (const casacore::Cube<casacore::Float>& wtspec) = 0;
246 : virtual void initSigmaSpectrum (const casacore::Cube<casacore::Float>& sigspec) = 0;
247 :
248 : virtual void dirtyComponentsAdd (const VisBufferComponents2 & additionalDirtyComponents) = 0;
249 : virtual void dirtyComponentsAdd (VisBufferComponent2 component) = 0;
250 : virtual void dirtyComponentsClear () = 0;
251 : virtual VisBufferComponents2 dirtyComponentsGet () const = 0;
252 : virtual void dirtyComponentsSet (const VisBufferComponents2 & dirtyComponents) = 0;
253 : virtual void dirtyComponentsSet (VisBufferComponent2 component) = 0;
254 :
255 : // This method returns the imagin g
256 : // If an imaging weight generator has not been supplied to the associated
257 : // VisibilityIterator then this method will throw an exception.
258 :
259 : virtual const casacore::Matrix<casacore::Float> & imagingWeight() const = 0;
260 : virtual void setImagingWeight (const casacore::Matrix<casacore::Float> & newImagingWeights) = 0;
261 :
262 : //---------------------------------------------------------------------------
263 : //
264 : // Frequency reporting methods.
265 : //
266 : // These methods provide information about the frequencies returned in the
267 : // visibility cubes. The information can returned as the channel numbers
268 : // (numbered as in the underlying casacore::MS data) or in a frame-based frequency.
269 : // This information reported need not be in the same frame of reference
270 : // used to select the data. If the frame of reference is specified in the
271 : // call, then that is the frame that is used to calculate the frequencies.
272 : // If it is not specified, then the VisibilityIterator will be queried for
273 : // virtual the reportingFrame = 0; if the user has specified a reporting frame to the
274 : // virtual VI then that frame will be used = 0; otherwise the frame used to select
275 : // the frequencies will be used. If the user provides no frequency selection
276 : // to the VI then the selection frame will TOPO.
277 : //
278 : // Both the channelNumber and frequency reporting methods come in two versions:
279 : // one returns a single frequency for the specified frequency index and row
280 : // while the other provides all of the frequencies for the specified row.
281 : // The frequency index is the zero-based index along the frequency axis of
282 : // a visibility cube.
283 :
284 : virtual casacore::Vector<casacore::Stokes::StokesTypes> getCorrelationTypesDefined () const = 0;
285 : virtual casacore::Vector<casacore::Stokes::StokesTypes> getCorrelationTypesSelected () const = 0;
286 : virtual casacore::Vector<casacore::Int> getCorrelationTypes () const = 0;
287 : virtual casacore::Double getFrequency (casacore::Int rowInBuffer, casacore::Int frequencyIndex,
288 : casacore::Int frame = FrameNotSpecified) const = 0;
289 : virtual const casacore::Vector<casacore::Double> & getFrequencies (casacore::Int rowInBuffer,
290 : casacore::Int frame = FrameNotSpecified) const = 0;
291 : virtual casacore::Int getChannelNumber (casacore::Int rowInBuffer, casacore::Int frequencyIndex) const = 0;
292 : virtual const casacore::Vector<casacore::Int> & getChannelNumbers (casacore::Int rowInBuffer) const = 0;
293 : virtual casacore::Vector<casacore::Int> getChannelNumbersSelected (casacore::Int outputChannelIndex) const = 0;
294 :
295 : // casacore::Sort/unsort the correlations, if necessary
296 : // (Rudimentary handling of non-canonically sorted correlations--use with care!)
297 : //
298 : // The sorting functionality is a horrible kluge that puts the VisBuffer into a
299 : // somewhat incoherent state (e.g., after sorting the correlation types array
300 : // does not correspond to the data) and appears to serve the needs
301 : // of a tiny piece of code. As such, this refactor is initially not going to
302 : // support this functionality since it is probably better implemented in the one
303 : // place that actually needs it. (jjacobs 10/3/12)
304 : //
305 : //virtual void sortCorr () = 0;
306 : //virtual void unSortCorr() = 0;
307 :
308 : // Normalize the visCube by the modelVisCube.
309 :
310 : virtual void normalize() = 0;
311 :
312 : // Rotate visibility phase for given vector (dim = nrow of vb) of phases (metres)
313 : virtual void phaseCenterShift(const casacore::Vector<casacore::Double>& phase) = 0;
314 : // Rotate visibility phase for phase center offsets (arcsecs)
315 : virtual void phaseCenterShift(casacore::Double dx, casacore::Double dy) = 0;
316 :
317 : // Set the weight cube using the sigma cube. Each weight will be
318 : // the reciprocal of the square of the corresponding element in the model
319 : // VisCube multiplied by the number of channels in the spectral window.
320 : // If an element in sigma is zero then the corresponding weight element
321 : // will also be set to zero.
322 :
323 : virtual void resetWeightsUsingSigma () = 0;//void resetWeightMat() = 0;
324 :
325 : //----------------------------------------------------------------------
326 : //
327 : // Subhchunk information methods
328 : //
329 : // These methods provide information related to the current subchunk.
330 : // The isNewXXX methods return true if the XXX property of the subchunk
331 : // differs from the previous subchunk.
332 : //
333 : // The methods msId and msName provide information about the MS
334 : // related to the current subchunk. The msID is the zero-based index
335 : // of the casacore::MS in the sequence of MSs being iterated over.
336 : //
337 : // The isWritable method is true when the attached iterator is writable
338 : // and false otherwise.
339 : //
340 : // The isRekeyable method is true when the VisBuffer is writable and also
341 : // allows the modification of non-data fields (e.g., antenna1, fieldId, etc.)
342 : // A rekeyable VB is one that could be used to create data for a brand new
343 : // MS.
344 :
345 : virtual casacore::Bool isNewArrayId () const = 0;
346 : virtual casacore::Bool isNewFieldId () const = 0;
347 : virtual casacore::Bool isNewMs() const = 0;
348 : virtual casacore::Bool isNewSpectralWindow () const = 0;
349 : virtual casacore::Bool isWritable () const = 0;
350 : virtual casacore::Int msId() const /*__attribute__((deprecated))*/ = 0;
351 : virtual casacore::String msName (casacore::Bool stripPath = false) const /*__attribute__((deprecated))*/ = 0;
352 : virtual Subchunk getSubchunk () const = 0;
353 :
354 : //////////////////////////////////////////////////////////////////////
355 : //
356 : // casacore::Data accessors and setters (where appropriate)
357 : //
358 : // There are the methods that allows access to the items cached in the
359 : // VisBuffer. The straight accessors provide read-only access to the
360 : // item. Where the item is allowed to be modified, one or more set
361 : // methods are provided.
362 : //
363 : // The dimensionality of the major object in in accessor/setter is
364 : // shown in a trailing comment using the following abbreviations:
365 : //
366 : // nA :== number of antennas
367 : // nF :== number of frequencies (or channels)
368 : // nC :== number of correlations
369 : // nR :== number of table rows contained in the buffer
370 :
371 : //--------------------------------------------------------
372 : //
373 : // Accessors for data contained in the main casacore::MeasurementSet main table
374 : // The actual visibility data are at the end.
375 : //
376 : // *** N.B.: the VB usually caches the information
377 : // in the representation requested so that using a setter to modify
378 : // one value type (e.g., weight or visibility) will not modify the
379 : // cached value in a different representation (e.g., weightMat or
380 : // visCube). This should not be a problem in normal usage.
381 :
382 : virtual const casacore::Vector<casacore::Int> & antenna1 () const = 0; // [nR]
383 : virtual void setAntenna1 (const casacore::Vector<casacore::Int> & value) = 0; // [nR]
384 : virtual const casacore::Vector<casacore::Int> & antenna2 () const = 0; // [nR]
385 : virtual void setAntenna2 (const casacore::Vector<casacore::Int> & value) = 0; // [nR]
386 : virtual const casacore::Vector<casacore::Int> & arrayId () const = 0;
387 : virtual void setArrayId (const casacore::Vector<casacore::Int> & ) = 0;
388 : //virtual casacore::Int dataDescriptionId () const = 0;
389 : //virtual void setDataDescriptionId (casacore::Int value) = 0;
390 : virtual const casacore::Vector<casacore::Int> & dataDescriptionIds () const = 0; // [nR]
391 : virtual void setDataDescriptionIds (const casacore::Vector<casacore::Int> & ) = 0; // [nR]
392 : virtual const casacore::Vector<casacore::MDirection> & direction1 () const = 0; // [nR]
393 : virtual const casacore::Vector<casacore::MDirection> & direction2 () const = 0; // [nR]
394 : virtual const casacore::Vector<casacore::Double> & exposure () const = 0; // [nR]
395 : virtual void setExposure (const casacore::Vector<casacore::Double> & value) = 0; // [nR]
396 : virtual const casacore::Vector<casacore::Int> & feed1 () const = 0; // [nR]
397 : virtual void setFeed1 (const casacore::Vector<casacore::Int> & value) = 0; // [nR]
398 : virtual const casacore::Vector<casacore::Int> & feed2 () const = 0; // [nR]
399 : virtual void setFeed2 (const casacore::Vector<casacore::Int> & value) = 0; // [nR]
400 : virtual const casacore::Vector<casacore::Int> & fieldId () const = 0;
401 : virtual void setFieldId (const casacore::Vector<casacore::Int> &) = 0;
402 : //virtual const casacore::Matrix<casacore::Bool> & flag () const = 0; // [nF,nR]
403 : //virtual void setFlag (const casacore::Matrix<casacore::Bool>& value) = 0; // [nF,nR]
404 : virtual const casacore::Array<casacore::Bool> & flagCategory () const = 0; // [nC,nF,nCategories,nR]
405 : virtual void setFlagCategory (const casacore::Array<casacore::Bool>& value) = 0; // [nC,nF,nCategories,nR]
406 : virtual const casacore::Vector<casacore::Array<casacore::Bool>> & flagCategories () const = 0; // [nC,nF,nCategories,nR]
407 : virtual void setFlagCategories (const casacore::Vector<casacore::Array<casacore::Bool>>& value) = 0; // [nC,nF,nCategories,nR]
408 : virtual const casacore::Cube<casacore::Bool> & flagCube () const = 0; // [nC,nF,nR]
409 : virtual void setFlagCube (const casacore::Cube<casacore::Bool>& value) = 0; // [nC,nF,nR]
410 : virtual const casacore::Vector<casacore::Cube<casacore::Bool>> & flagCubes () const = 0; // [nC,nF,nR]
411 : virtual void setFlagCubes (const casacore::Vector<casacore::Cube<casacore::Bool>>& value) = 0; // [nC,nF,nR]
412 : virtual const casacore::Vector<casacore::Bool> & flagRow () const = 0; // [nR]
413 : virtual void setFlagRow (const casacore::Vector<casacore::Bool>& value) = 0; // [nR]
414 : virtual const casacore::Vector<casacore::Int> & observationId () const = 0; // [nR]
415 : virtual void setObservationId (const casacore::Vector<casacore::Int> & value) = 0; // [nR]
416 : virtual const casacore::Vector<casacore::Int> & processorId () const = 0; // [nR]
417 : virtual void setProcessorId (const casacore::Vector<casacore::Int> & value) = 0; // [nR]
418 : virtual const casacore::Vector<casacore::Int> & scan () const = 0; // [nR]
419 : virtual void setScan (const casacore::Vector<casacore::Int> & value) = 0; // [nR]
420 : virtual const casacore::Matrix<casacore::Float> & sigma () const = 0; // [nC, nR]
421 : virtual void setSigma (const casacore::Matrix <casacore::Float> & value) = 0; // [nC, nR]
422 : virtual const casacore::Vector<casacore::Matrix<casacore::Float>> & sigmas () const = 0; // [nC, nR]
423 : virtual void setSigmas (const casacore::Vector<casacore::Matrix <casacore::Float>> & value) = 0; // [nC, nR]
424 : //virtual const casacore::Matrix<casacore::Float> & sigmaMat () const = 0; // [nC,nR]
425 : virtual const casacore::Vector<casacore::Int> & stateId () const = 0; // [nR]
426 : virtual void setStateId (const casacore::Vector<casacore::Int> & value) = 0; // [nR]
427 : virtual const casacore::Vector<casacore::Double> & time () const = 0; // [nR]
428 : virtual void setTime (const casacore::Vector<casacore::Double> & value) = 0; // [nR]
429 : virtual const casacore::Vector<casacore::Double> & timeCentroid () const = 0; // [nR]
430 : virtual void setTimeCentroid (const casacore::Vector<casacore::Double> & value) = 0; // [nR]
431 : virtual const casacore::Vector<casacore::Double> & timeInterval () const = 0; // [nR]
432 : virtual void setTimeInterval (const casacore::Vector<casacore::Double> & value) = 0; // [nR]
433 : virtual const casacore::Matrix<casacore::Double> & uvw () const = 0; // [3,nR]
434 : virtual void setUvw (const casacore::Matrix<casacore::Double> & value) = 0; // [3,nR]
435 : virtual const casacore::Matrix<casacore::Float> & weight () const = 0; // [nC, nR]
436 : virtual void setWeight (const casacore::Matrix <casacore::Float>& value) = 0; // [nC, nR]
437 : virtual const casacore::Vector<casacore::Matrix<casacore::Float>> & weights () const = 0; // [nC, nR]
438 : virtual void setWeights (const casacore::Vector<casacore::Matrix <casacore::Float>>& value) = 0; // [nC, nR]
439 : //virtual const casacore::Matrix<casacore::Float> & weightMat () const = 0; // [nC,nR]
440 : //virtual void setWeightMat (const casacore::Matrix<casacore::Float>& value) = 0; // [nC,nR]
441 :
442 : virtual const casacore::Cube<casacore::Float> & weightSpectrum () const = 0; // [nC,nF,nR]
443 : virtual void setWeightSpectrum (const casacore::Cube<casacore::Float>& value) = 0; // [nC,nF,nR]
444 : virtual const casacore::Vector<casacore::Cube<casacore::Float>> & weightSpectra () const = 0; // [nC,nF,nR]
445 : virtual void setWeightSpectra (const casacore::Vector<casacore::Cube<casacore::Float>>& value) = 0; // [nC,nF,nR]
446 :
447 : virtual const casacore::Cube<casacore::Float> & sigmaSpectrum () const = 0; // [nC,nF,nR]
448 : virtual void setSigmaSpectrum (const casacore::Cube<casacore::Float>& value) = 0; // [nC,nF,nR]
449 : virtual const casacore::Vector<casacore::Cube<casacore::Float>> & sigmaSpectra () const = 0; // [nC,nF,nR]
450 : virtual void setSigmaSpectra (const casacore::Vector<casacore::Cube<casacore::Float>>& value) = 0; // [nC,nF,nR]
451 :
452 : // --------------------------------------------------------------
453 : // Visibility data accessors in order of observed, corrected,
454 : // float, & model
455 :
456 : virtual const casacore::Cube<casacore::Complex> & visCube () const = 0; // [nC,nF,nR]
457 : virtual void setVisCube(const casacore::Complex & c) = 0;
458 : virtual void setVisCube (const casacore::Cube<casacore::Complex> &) = 0; // [nC,nF,nR]
459 : virtual const casacore::Vector<casacore::Cube<casacore::Complex>> & visCubes () const = 0; // [nC,nF,nR]
460 : virtual void setVisCubes (const casacore::Vector<casacore::Cube<casacore::Complex>> &) = 0; // [nC,nF,nR]
461 : // virtual const casacore::Matrix<CStokesVector> & vis () const = 0; // [nF,nR]
462 : // virtual void setVis (casacore::Matrix<CStokesVector> &) = 0; // [nF,nR]
463 :
464 : virtual const casacore::Cube<casacore::Complex> & visCubeCorrected () const = 0; // [nC,nF,nR]
465 : virtual void setVisCubeCorrected (const casacore::Cube<casacore::Complex> &) = 0; // [nC,nF,nR]
466 : virtual const casacore::Vector<casacore::Cube<casacore::Complex>> & visCubesCorrected () const = 0; // [nC,nF,nR]
467 : virtual void setVisCubesCorrected (const casacore::Vector<casacore::Cube<casacore::Complex>> &) = 0; // [nC,nF,nR]
468 : // virtual const casacore::Matrix<CStokesVector> & visCorrected () const = 0; // [nF,nR]
469 : // virtual void setVisCorrected (const casacore::Matrix<CStokesVector> &) = 0; // [nF,nR]
470 :
471 : virtual const casacore::Cube<casacore::Float> & visCubeFloat () const = 0; // [nC,nF,nR]
472 : virtual void setVisCubeFloat (const casacore::Cube<casacore::Float> &) = 0; // [nC,nF,nR]
473 : virtual const casacore::Vector<casacore::Cube<casacore::Float>> & visCubesFloat () const = 0; // [nC,nF,nR]
474 : virtual void setVisCubesFloat (const casacore::Vector<casacore::Cube<casacore::Float>> &) = 0; // [nC,nF,nR]
475 :
476 : virtual const casacore::Cube<casacore::Complex> & visCubeModel () const = 0; // [nC,nF,nR]
477 : virtual void setVisCubeModel(const casacore::Complex & c) = 0;
478 : virtual void setVisCubeModel(const casacore::Cube<casacore::Complex>& vis) = 0; // [nC,nF,nR]
479 : virtual void setVisCubeModel(const casacore::Vector<casacore::Float>& stokes) = 0; // [1..4]
480 : virtual const casacore::Vector<casacore::Cube<casacore::Complex>> & visCubesModel () const = 0; // [nC,nF,nR]
481 : //virtual void setVisCubesModel(const casacore::Complex & c) = 0;
482 : virtual void setVisCubesModel(const casacore::Vector<casacore::Cube<casacore::Complex>>& vis) = 0; // [nC,nF,nR]
483 : // virtual const casacore::Matrix<CStokesVector> & visModel () const = 0; // [nF,nR]
484 : // virtual void setVisModel (casacore::Matrix<CStokesVector> &) = 0; // [nF,nR]
485 :
486 : virtual casacore::Float getWeightScaled (casacore::Int row) const = 0;
487 : virtual casacore::Float getWeightScaled (casacore::Int correlation, casacore::Int row) const = 0;
488 : virtual casacore::Float getWeightScaled (casacore::Int correlation, casacore::Int channel, casacore::Int row) const = 0;
489 : virtual casacore::Float getSigmaScaled (casacore::Int row) const = 0;
490 : virtual casacore::Float getSigmaScaled (casacore::Int correlation, casacore::Int row) const = 0;
491 : virtual casacore::Float getSigmaScaled (casacore::Int correlation, casacore::Int channel, casacore::Int row) const = 0;
492 :
493 : //--------------------------------------------------------
494 : //
495 : // Accessors for data derived from the casacore::MS main table data
496 :
497 : // Returns the pointing angle for the array as a whole at the
498 : // specified time.
499 :
500 : virtual casacore::MDirection azel0 (casacore::Double time) const = 0;
501 :
502 : // Returns the pointing angle for each antenna in the array
503 : // at the specified time.
504 :
505 : virtual const casacore::Vector<casacore::MDirection> & azel(casacore::Double time) const = 0; // [nA]
506 :
507 : // Returns the Jones C matrix for each antenna.
508 :
509 : virtual const casacore::Vector<casacore::SquareMatrix<casacore::Complex, 2> > & cjones () const = 0; // [nA]
510 :
511 : // Returns the correlation type of each correlation in the
512 : // VisCube.
513 :
514 : virtual const casacore::Vector<casacore::Int> & correlationTypes () const = 0; // [nC]
515 :
516 : // Calculates the parallactic angle for the first receptor of
517 : // each antenna at the specified time.
518 :
519 : virtual const casacore::Vector<casacore::Float> & feedPa(casacore::Double time) const = 0; // [nR]
520 :
521 : // Calculates the parallactic angle for feed 0 of the
522 : // row's Antenna1.
523 :
524 : virtual const casacore::Vector<casacore::Float> & feedPa1 () const = 0; // [nR]
525 :
526 : // Calculates the parallactic angle for feed 0 of the
527 : // row's Antenna2.
528 :
529 : virtual const casacore::Vector<casacore::Float> & feedPa2 () const = 0; // [nR]
530 :
531 : virtual casacore::IPosition getShape () const = 0;
532 :
533 : // Returns the hour angle of the array at the specified time.
534 :
535 : virtual casacore::Double hourang(casacore::Double time) const = 0;
536 :
537 : virtual casacore::Int nAntennas () const = 0;
538 :
539 : virtual casacore::Int nChannels () const = 0;
540 :
541 : // Returns the number of correlations along the visCube
542 : // correlation axis. This comes from the "channel" selection and thus can
543 : // be anything positive integer (e.g., user could select the same
544 : // correlation more than once).
545 :
546 : virtual casacore::Int nCorrelations () const = 0;
547 :
548 : // Returns the number of rows in this VisBuffer
549 : virtual casacore::rownr_t nRows () const = 0;
550 :
551 : // Returns the number of distinct cube/array shapes in this VisBuffer
552 : virtual casacore::rownr_t nShapes () const = 0;
553 :
554 : // Returns the number of rows per distinct cube/array shapes in this VisBuffer
555 : virtual const casacore::Vector<casacore::rownr_t>& nRowsPerShape () const = 0;
556 :
557 : // Returns the number of channels per distinct cube/array shapes in this VisBuffer
558 : virtual const casacore::Vector<casacore::Int>& nChannelsPerShape () const = 0;
559 :
560 : // Returns the number of correlation per distinct cube/array shapes in this VisBuffer
561 : virtual const casacore::Vector<casacore::Int>& nCorrelationsPerShape () const = 0;
562 :
563 : // Calculates the parallactic angle of the array as a whole
564 : // at the specified time.
565 :
566 : virtual casacore::Float parang0(casacore::Double time) const = 0;
567 :
568 : // Calculates the parallactic angle of each antenna in the
569 : // array at the specified time.
570 :
571 : virtual const casacore::Vector<casacore::Float> & parang(casacore::Double time) const = 0; // [nA]
572 :
573 : // Returns the phase center of the array for the specified
574 : // row.
575 :
576 : virtual const casacore::MDirection& phaseCenter () const = 0;
577 :
578 : // Returns the polarization frame for the specified row.
579 :
580 : virtual casacore::Int polarizationFrame () const = 0;
581 :
582 : virtual casacore::Int polarizationId () const = 0;
583 :
584 : // The returned casacore::Vector serves as a map between the rows in
585 : // the VisBuffer and the row IDs in the underlying casacore::MS main
586 : // virtual table: mainTableID [i] = rowIds () [ i] = 0;
587 :
588 : virtual const casacore::Vector<casacore::rownr_t> & rowIds () const = 0; // [nR]
589 :
590 : // Returns the spectral window ID for each row.
591 : virtual const casacore::Vector<casacore::Int> & spectralWindows () const = 0; // [nR]
592 : virtual void setSpectralWindows (const casacore::Vector<casacore::Int> & spectralWindows) = 0;
593 :
594 : virtual casacore::CountedPtr<WeightScaling> getWeightScaling () const = 0;
595 :
596 : protected:
597 :
598 : virtual void associateWithVi2 (const VisibilityIterator2 *);
599 : virtual void configureNewSubchunk (casacore::Int msId, const casacore::String & msName, casacore::Bool isNewMs,
600 : casacore::Bool isNewArrayId, casacore::Bool isNewFieldId,
601 : casacore::Bool isNewSpectralWindow, const Subchunk & subchunk,
602 : const casacore::Vector<casacore::rownr_t>& nRowsPerShape,
603 : const casacore::Vector<casacore::Int>& nChannelsPerShape,
604 : const casacore::Vector<casacore::Int>& nCorrelationsPerShape,
605 : const casacore::Vector<casacore::Int> & correlations,
606 : const casacore::Vector<casacore::Stokes::StokesTypes> & correlationsDefined,
607 : const casacore::Vector<casacore::Stokes::StokesTypes> & correlationsSelected,
608 : casacore::CountedPtr<WeightScaling> weightScaling) = 0;
609 : virtual void invalidate() = 0;
610 : virtual casacore::Bool isRekeyable () const = 0;
611 : virtual void setFillable (casacore::Bool isFillable) = 0;
612 : virtual void setRekeyable (casacore::Bool isRekeable) = 0;
613 0 : virtual bool setWritability (bool /*newWritability*/) { ThrowCc ("Should be overridden"); } // Kluge
614 :
615 : virtual casacore::Vector<casacore::Bool> & flagRowRef () = 0; // [nR]
616 : virtual casacore::Cube<casacore::Bool> & flagCubeRef () = 0; // [nC,nF,nR]
617 : virtual casacore::Vector<casacore::Cube<casacore::Bool>> & flagCubesRef () = 0; // [nC,nF,nR]
618 : virtual casacore::Cube<casacore::Complex> & visCubeRef () = 0; // [nC,nF,nR]
619 : virtual casacore::Vector<casacore::Cube<casacore::Complex>> & visCubesRef () = 0; // [nC,nF,nR]
620 : virtual casacore::Cube<casacore::Complex> & visCubeCorrectedRef () = 0; // [nC,nF,nR]
621 : virtual casacore::Vector<casacore::Cube<casacore::Complex>> & visCubesCorrectedRef () = 0; // [nC,nF,nR]
622 : virtual casacore::Cube<casacore::Complex> & visCubeModelRef () = 0; // [nC,nF,nR]
623 : virtual casacore::Vector<casacore::Cube<casacore::Complex>> & visCubesModelRef () = 0; // [nC,nF,nR]
624 : virtual casacore::Cube<casacore::Float> & weightSpectrumRef () = 0; // [nC,nF,nR]
625 : virtual casacore::Vector<casacore::Cube<casacore::Float>> & weightSpectraRef () = 0; // [nC,nF,nR]
626 : virtual casacore::Cube<casacore::Float> & sigmaSpectrumRef () = 0; // [nC,nF,nR]
627 : virtual casacore::Vector<casacore::Cube<casacore::Float>> & sigmaSpectraRef () = 0; // [nC,nF,nR]
628 :
629 : private:
630 :
631 : const VisibilityIterator2 * associatedVi_p;
632 :
633 : };
634 :
635 : class VisBufferUtil2 {
636 :
637 : public:
638 :
639 : static void phaseCenterShift(VisBuffer2 & vb, const casacore::Vector<casacore::Double>& phase);
640 : static void phaseCenterShift(VisBuffer2 & vb, casacore::Double dx, casacore::Double dy);
641 : };
642 :
643 :
644 : } // end namespace vi
645 :
646 :
647 : } //# NAMESPACE CASA - END
648 :
649 :
650 : #endif
651 :
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