Line data Source code
1 : /*
2 : * AveragingVi2Factory.cc
3 : *
4 : * Created on: Feb 25, 2013
5 : * Author: jjacobs
6 : */
7 :
8 :
9 : #include <stdcasa/UtilJ.h>
10 : #include <msvis/MSVis/AveragingVi2Factory.h>
11 : #include <msvis/MSVis/VisibilityIterator2.h>
12 : #include <msvis/MSVis/VisibilityIteratorImpl2.h>
13 : #include <msvis/MSVis/AveragingTvi2.h>
14 : #include <cstdarg>
15 :
16 : using namespace std;
17 :
18 : using namespace casacore;
19 : namespace casa {
20 : namespace vi {
21 :
22 0 : AveragingParameters::AveragingParameters ()
23 0 : : averagingInterval_p (0),
24 0 : averagingOptions_p (AveragingOptions ()),
25 0 : chunkInterval_p (0),
26 0 : sortColumns_p (SortColumns ()),
27 0 : weightScaling_p (0),
28 0 : isWritable_p(false)
29 0 : {}
30 :
31 0 : AveragingParameters::AveragingParameters (Double averagingInterval,
32 : Double chunkInterval,
33 : const SortColumns & sortColumns,
34 : const AveragingOptions & options,
35 : Double maxUvwDistance,
36 : WeightScaling * weightScalingForAveraging,
37 : Bool isWriteable,
38 : Double dx,
39 0 : Double dy)
40 0 : : averagingInterval_p (averagingInterval),
41 0 : averagingOptions_p (options),
42 0 : chunkInterval_p (chunkInterval),
43 0 : maxUvwDistance_p (maxUvwDistance),
44 0 : sortColumns_p (sortColumns),
45 0 : weightScaling_p (weightScalingForAveraging),
46 0 : isWritable_p(isWriteable),
47 0 : XpcOffset_p(dx),
48 0 : YpcOffset_p(dy)
49 : {
50 0 : Assert (averagingInterval > 0);
51 0 : Assert (chunkInterval >= 0);
52 0 : Assert (chunkInterval == 0 || chunkInterval >= averagingInterval);
53 0 : Assert (! options.contains (AveragingOptions::BaselineDependentAveraging) ||
54 : maxUvwDistance_p > 0.001);
55 :
56 0 : validateOptions (); // Throws if error
57 0 : }
58 :
59 0 : AveragingParameters::AveragingParameters (const AveragingParameters & other)
60 : {
61 0 : * this = other;
62 0 : }
63 :
64 : AveragingParameters &
65 0 : AveragingParameters::operator= (const AveragingParameters & other)
66 : {
67 0 : if (this != & other){
68 :
69 0 : averagingInterval_p = other.averagingInterval_p;
70 0 : averagingOptions_p = other.averagingOptions_p;
71 0 : chunkInterval_p = other.chunkInterval_p;
72 0 : maxUvwDistance_p = other.maxUvwDistance_p;
73 0 : sortColumns_p = other.sortColumns_p;
74 0 : weightScaling_p = other.weightScaling_p;
75 0 : isWritable_p = other.isWritable_p;
76 0 : XpcOffset_p = other.XpcOffset_p;
77 0 : YpcOffset_p = other.YpcOffset_p;
78 :
79 0 : validate ();
80 : }
81 :
82 0 : return *this;
83 : }
84 :
85 : VisBufferComponents2
86 0 : AveragingParameters::allDataColumns () const
87 : {
88 : return VisBufferComponents2::these ({VisBufferComponent2::VisibilityModel,
89 : VisBufferComponent2::VisibilityObserved,
90 0 : VisBufferComponent2::VisibilityCorrected});
91 : }
92 :
93 : Double
94 0 : AveragingParameters::getChunkInterval () const
95 : {
96 0 : Assert (chunkInterval_p >= 0);
97 :
98 0 : return chunkInterval_p;
99 : }
100 :
101 : Double
102 0 : AveragingParameters::getAveragingInterval () const
103 : {
104 0 : Assert (averagingInterval_p > 0);
105 :
106 0 : return averagingInterval_p;
107 : }
108 :
109 : Double
110 0 : AveragingParameters::getMaxUvwDistance () const
111 : {
112 0 : return maxUvwDistance_p;
113 : }
114 :
115 : const AveragingOptions &
116 0 : AveragingParameters::getOptions () const
117 : {
118 0 : return averagingOptions_p;
119 : }
120 :
121 : const SortColumns &
122 0 : AveragingParameters::getSortColumns () const
123 : {
124 0 : return sortColumns_p;
125 : }
126 :
127 : WeightScaling *
128 0 : AveragingParameters::getWeightScaling () const
129 : {
130 0 : return weightScaling_p;
131 : }
132 :
133 : Double
134 0 : AveragingParameters::getXpcOffset () const
135 : {
136 0 : return XpcOffset_p;
137 : }
138 :
139 : Double
140 0 : AveragingParameters::getYpcOffset () const
141 : {
142 0 : return YpcOffset_p;
143 : }
144 :
145 : Bool
146 0 : AveragingParameters::isWriteable () const
147 : {
148 0 : return isWritable_p;
149 : }
150 :
151 :
152 : void
153 0 : AveragingParameters::setChunkInterval (Double value)
154 : {
155 0 : ThrowIf (value >= 0, "ChunkInterval must be >= 0.");
156 :
157 0 : chunkInterval_p = value;
158 0 : }
159 :
160 : void
161 0 : AveragingParameters::setAveragingInterval (Double value)
162 : {
163 0 : ThrowIf (value > 0, "AveragingInterval must be > 0.");
164 :
165 0 : averagingInterval_p = value;
166 0 : }
167 :
168 : void
169 0 : AveragingParameters::setMaxUvwDistance (Double value)
170 : {
171 0 : ThrowIf (value < 0, "MaxUvwDistance must be >= 0.");
172 :
173 0 : maxUvwDistance_p = value;
174 0 : }
175 :
176 : void
177 0 : AveragingParameters::setOptions (const AveragingOptions & value)
178 : {
179 0 : averagingOptions_p = value;
180 :
181 0 : validateOptions ();
182 0 : }
183 :
184 : void
185 0 : AveragingParameters::setSortColumns (const SortColumns & value)
186 : {
187 0 : sortColumns_p = value;
188 0 : }
189 :
190 : void
191 0 : AveragingParameters::setWeightScaling (WeightScaling * value)
192 : {
193 0 : weightScaling_p = value;
194 0 : }
195 :
196 : void
197 0 : AveragingParameters::setWritable (Bool isWritable)
198 : {
199 0 : isWritable_p = isWritable;
200 0 : }
201 :
202 : void
203 0 : AveragingParameters::setPhaseShift (Double dx, Double dy)
204 : {
205 0 : XpcOffset_p = dx;
206 0 : YpcOffset_p = dy;
207 0 : }
208 :
209 : void
210 0 : AveragingParameters::validate()
211 : {
212 0 : Assert (averagingInterval_p > 0);
213 0 : Assert (chunkInterval_p >= 0);
214 0 : Assert (chunkInterval_p == 0 || chunkInterval_p >= averagingInterval_p);
215 0 : Assert (! averagingOptions_p.contains (AveragingOptions::BaselineDependentAveraging) ||
216 : maxUvwDistance_p > 0.001);
217 :
218 0 : validateOptions (); // Throws if error
219 0 : }
220 :
221 :
222 : void
223 0 : AveragingParameters::validateOptions ()
224 : {
225 :
226 0 : if (averagingOptions_p.contains(AveragingOptions::AverageObserved))
227 : {
228 :
229 0 : Int bits = AveragingOptions::ObservedPlainAvg |
230 : AveragingOptions::ObservedFlagAvg |
231 : AveragingOptions::ObservedWeightAvgFromSIGMA |
232 : AveragingOptions::ObservedFlagWeightAvgFromSIGMA;
233 :
234 0 : Int nSet = averagingOptions_p.nSet (bits);
235 :
236 0 : ThrowIf (nSet > 1, "Inconsistent DATA weights options provided");
237 :
238 0 : ThrowIf (nSet == 0, "Need to specify DATA weighting option");
239 : }
240 :
241 :
242 0 : if (averagingOptions_p.contains(AveragingOptions::AverageCorrected))
243 : {
244 :
245 0 : Int bits = AveragingOptions::CorrectedPlainAvg |
246 : AveragingOptions::CorrectedFlagAvg |
247 : AveragingOptions::CorrectedWeightAvgFromWEIGHT |
248 : AveragingOptions::CorrectedFlagWeightAvgFromWEIGHT;
249 :
250 0 : Int nSet = averagingOptions_p.nSet (bits);
251 :
252 0 : ThrowIf (nSet > 1, "Inconsistent CORRECTED_DATA weights options provided");
253 :
254 0 : ThrowIf (nSet == 0, "Need to specify CORRECTED_DATA weighting option");
255 : }
256 :
257 0 : if (averagingOptions_p.contains(AveragingOptions::AverageModel))
258 : {
259 :
260 0 : Int bits = AveragingOptions::ModelPlainAvg |
261 : AveragingOptions::ModelFlagAvg |
262 : AveragingOptions::ModelWeightAvgFromWEIGHT |
263 : AveragingOptions::ModelWeightAvgFromSIGMA |
264 : AveragingOptions::ModelFlagWeightAvgFromWEIGHT |
265 : AveragingOptions::ModelFlagWeightAvgFromSIGMA;
266 :
267 0 : Int nSet = averagingOptions_p.nSet (bits);
268 :
269 0 : ThrowIf (nSet > 1, "Inconsistent MODEL_DATA weights options provided");
270 :
271 0 : ThrowIf (nSet == 0, "Need to specify MODEL_DATA weighting option");
272 : }
273 0 : }
274 :
275 0 : AveragingVi2Factory::AveragingVi2Factory (const AveragingParameters & parameters,
276 0 : MeasurementSet * ms)
277 : {
278 0 : Block <const MeasurementSet *> mss (1, ms);
279 :
280 0 : initialize (parameters, mss);
281 0 : }
282 :
283 0 : AveragingVi2Factory::AveragingVi2Factory (const AveragingParameters & parameters,
284 : MeasurementSet * ms1,
285 : MeasurementSet * ms2,
286 0 : ...)
287 : {
288 : // Capture the first argument directly into the stl vector
289 :
290 0 : vector<MeasurementSet *> mssV;
291 0 : mssV.push_back (ms1);
292 :
293 : va_list args;
294 :
295 0 : va_start (args, ms2);
296 :
297 0 : MeasurementSet * ms = va_arg (args, MeasurementSet *);
298 :
299 0 : while (ms != 0){
300 :
301 0 : mssV.push_back (ms);
302 :
303 0 : ms = va_arg (args, MeasurementSet *);
304 : }
305 :
306 : // Convert the stl vector to the casa Vector.
307 :
308 0 : Block <const MeasurementSet *> mss (mssV.size());
309 0 : for (uInt i = 0; i < mssV.size(); i++){
310 0 : mss [i] = mssV [i];
311 : }
312 :
313 : // Now have the other overload do the actual work.
314 :
315 0 : initialize (parameters, mss);
316 0 : }
317 :
318 :
319 0 : AveragingVi2Factory::AveragingVi2Factory (const AveragingParameters & parameters,
320 0 : const Block<const MeasurementSet *> & mss)
321 : {
322 0 : initialize (parameters, mss);
323 0 : }
324 :
325 0 : AveragingVi2Factory::~AveragingVi2Factory ()
326 : {
327 0 : }
328 :
329 :
330 : void
331 0 : AveragingVi2Factory::initialize (const AveragingParameters & parameters,
332 : const Block<const MeasurementSet *> & mss)
333 : {
334 0 : parameters_p = parameters;
335 0 : mss_p = mss;
336 0 : }
337 :
338 :
339 : ViImplementation2 *
340 0 : AveragingVi2Factory::createVi () const
341 : {
342 :
343 : // Make the chunk interval compatible with the averaging interval up rounding it up to
344 : // the nearest multiple of the averaging interval (e.g., chunkInterval 12 with averaging
345 : // interval of 5 is rounded to 15.
346 :
347 0 : Double chunkInterval = parameters_p.getChunkInterval ();
348 0 : Double chunkRatio = ceil (chunkInterval / parameters_p.getAveragingInterval ());
349 0 : chunkInterval = parameters_p.getAveragingInterval () * chunkRatio;
350 0 : Bool isWriteable = parameters_p.isWriteable();
351 :
352 : // Create a simple VI implementation to perform the reading.
353 :
354 0 : VisibilityIteratorImpl2 * vii2 = new VisibilityIteratorImpl2 (mss_p,
355 0 : parameters_p.getSortColumns (),
356 : chunkInterval,
357 0 : isWriteable);
358 :
359 0 : vii2->setWeightScaling (parameters_p.getWeightScaling());
360 :
361 0 : AveragingTvi2 * averagingTvi2 = new AveragingTvi2 (vii2, parameters_p);
362 :
363 0 : return averagingTvi2;
364 : }
365 :
366 : // AveragingVi2LayerFactory ctor
367 0 : AveragingVi2LayerFactory::AveragingVi2LayerFactory(const AveragingParameters& avepars)
368 : : ViiLayerFactory(),
369 0 : avepars_p(avepars)
370 0 : {}
371 :
372 : // AveragingVi2-specific layer-creator
373 : ViImplementation2*
374 0 : AveragingVi2LayerFactory::createInstance (ViImplementation2* vii0) const
375 : {
376 : // Make the AveragintTvi2, using supplied ViImplementation2, and return it
377 0 : ViImplementation2 *vii = new AveragingTvi2(vii0,avepars_p);
378 0 : return vii;
379 : }
380 :
381 :
382 :
383 :
384 :
385 : } // end namesapce vi
386 : using namespace casacore;
387 : } // end namespace casa
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