Line data Source code
1 : //# FlagAgenExtension.cc: This file contains the implementation of the FlagAgenExtension.cc class.
2 : //#
3 : //# CASA - Common Astronomy Software Applications (http://casa.nrao.edu/)
4 : //# Copyright (C) Associated Universities, Inc. Washington DC, USA 2011, All rights reserved.
5 : //# Copyright (C) European Southern Observatory, 2011, All rights reserved.
6 : //#
7 : //# This library is free software; you can redistribute it and/or
8 : //# modify it under the terms of the GNU Lesser General Public
9 : //# License as published by the Free software Foundation; either
10 : //# version 2.1 of the License, or (at your option) any later version.
11 : //#
12 : //# This library is distributed in the hope that it will be useful,
13 : //# but WITHOUT ANY WARRANTY, without even the implied warranty of
14 : //# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 : //# Lesser General Public License for more details.
16 : //#
17 : //# You should have received a copy of the GNU Lesser General Public
18 : //# License along with this library; if not, write to the Free Software
19 : //# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
20 : //# MA 02111-1307 USA
21 : //# $Id: $
22 :
23 : #include <flagging/Flagging/FlagAgentExtension.h>
24 :
25 : using namespace casacore;
26 : namespace casa { //# NAMESPACE CASA - BEGIN
27 :
28 29 : FlagAgentExtension::FlagAgentExtension(FlagDataHandler *dh, Record config, Bool writePrivateFlagCube):
29 29 : FlagAgentBase(dh,config,ANTENNA_PAIRS_FLAGS,writePrivateFlagCube)
30 : {
31 29 : setAgentParameters(config);
32 :
33 : // Request loading polarization map to FlagDataHandler
34 29 : flagDataHandler_p->setMapPolarizations(true);
35 29 : }
36 :
37 58 : FlagAgentExtension::~FlagAgentExtension()
38 : {
39 : // Compiler automagically calls FlagAgentBase::~FlagAgentBase()
40 58 : }
41 :
42 29 : void FlagAgentExtension::setAgentParameters(Record config)
43 : {
44 29 : logger_p->origin(LogOrigin(agentName_p,__FUNCTION__,WHERE));
45 : int exists;
46 :
47 29 : exists = config.fieldNumber ("extendpols");
48 29 : if (exists >= 0)
49 : {
50 29 : if( config.type(exists) != TpBool )
51 : {
52 0 : throw( AipsError ( "Parameter 'extendpols' must be of type 'bool'" ) );
53 : }
54 :
55 29 : extendpols_p = config.asBool("extendpols");
56 : }
57 : else
58 : {
59 0 : extendpols_p = true;
60 : }
61 :
62 29 : *logger_p << logLevel_p << " extendpols is " << extendpols_p << LogIO::POST;
63 :
64 :
65 29 : exists = config.fieldNumber ("growtime");
66 29 : if (exists >= 0)
67 : {
68 29 : if( config.type(exists) != TpDouble && config.type(exists) != TpFloat && config.type(exists) != TpInt)
69 : {
70 0 : throw( AipsError ( "Parameter 'growtime' must be of type 'double'" ) );
71 : }
72 :
73 29 : growtime_p = config.asDouble("growtime");
74 :
75 29 : if( growtime_p < 0.0 || growtime_p > 100.0 )
76 : {
77 0 : throw( AipsError ( "Unsupported value for growtime:" + String::toString(growtime_p) + ". Allowed range is 0.0 through 100.0" ) );
78 : }
79 : }
80 : else
81 : {
82 0 : growtime_p = 50.0;
83 : }
84 :
85 29 : *logger_p << logLevel_p << " growtime is " << growtime_p << LogIO::POST;
86 :
87 :
88 29 : exists = config.fieldNumber ("growfreq");
89 29 : if (exists >= 0)
90 : {
91 29 : if( config.type(exists) != TpDouble && config.type(exists) != TpFloat && config.type(exists) != TpInt )
92 : {
93 0 : throw( AipsError ( "Parameter 'growfreq' must be of type 'double'" ) );
94 : }
95 :
96 29 : growfreq_p = config.asDouble("growfreq");
97 :
98 29 : if( growfreq_p < 0.0 || growfreq_p > 100.0 )
99 : {
100 0 : throw( AipsError ( "Unsupported value for growfreq:" + String::toString(growfreq_p) + ". Allowed range is 0.0 through 100.0" ) );
101 : }
102 : }
103 : else
104 : {
105 0 : growfreq_p = 50.0;
106 : }
107 :
108 29 : *logger_p << logLevel_p << " growfreq is " << growfreq_p << LogIO::POST;
109 :
110 :
111 29 : exists = config.fieldNumber ("growaround");
112 29 : if (exists >= 0)
113 : {
114 27 : if( config.type(exists) != TpBool )
115 : {
116 0 : throw( AipsError ( "Parameter 'growaround' must be of type 'bool'" ) );
117 : }
118 :
119 27 : growaround_p = config.asBool("growaround");
120 : }
121 : else
122 : {
123 2 : growaround_p = false;
124 : }
125 :
126 29 : *logger_p << logLevel_p << " growaround is " << growaround_p << LogIO::POST;
127 :
128 :
129 29 : exists = config.fieldNumber ("flagneartime");
130 29 : if (exists >= 0)
131 : {
132 27 : if( config.type(exists) != TpBool )
133 : {
134 0 : throw( AipsError ( "Parameter 'flagneartime' must be of type 'bool'" ) );
135 : }
136 :
137 27 : flagneartime_p = config.asBool("flagneartime");
138 : }
139 : else
140 : {
141 2 : flagneartime_p = false;
142 : }
143 :
144 29 : *logger_p << logLevel_p << " flagneartime is " << flagneartime_p << LogIO::POST;
145 :
146 :
147 29 : exists = config.fieldNumber ("flagnearfreq");
148 29 : if (exists >= 0)
149 : {
150 27 : if( config.type(exists) != TpBool )
151 : {
152 0 : throw( AipsError ( "Parameter 'flagnearfreq' must be of type 'bool'" ) );
153 : }
154 :
155 27 : flagnearfreq_p = config.asBool("flagnearfreq");
156 : }
157 : else
158 : {
159 2 : flagnearfreq_p = false;
160 : }
161 :
162 29 : *logger_p << logLevel_p << " flagnearfreq is " << flagnearfreq_p << LogIO::POST;
163 :
164 :
165 29 : return;
166 : }
167 :
168 : bool
169 4812 : FlagAgentExtension::computeAntennaPairFlags(const vi::VisBuffer2 &/*visBuffer*/,
170 : FlagMapper &flags,Int /*antenna1*/,Int /*antenna2*/,vector<uInt> &/*rows*/)
171 : {
172 : // Set logger origin
173 4812 : logger_p->origin(LogOrigin(agentName_p,__FUNCTION__,WHERE));
174 :
175 : // Get flag cube size
176 4812 : IPosition flagCubeShape = flags.shape();
177 : Int nPols,nChannels,nTimesteps;
178 4812 : flags.shape(nPols, nChannels, nTimesteps);
179 :
180 : // STEP1: Grow flags around, across time and across frequency
181 : bool flag;
182 : uInt extendAround;
183 4812 : if (flagneartime_p or flagnearfreq_p or growaround_p)
184 : {
185 : // Create the growing flag cube setting all flags initially to false
186 0 : Cube<Bool> *growFlags = new Cube<Bool>(nPols, nChannels+2, nTimesteps+2,false);
187 :
188 : // Iterate over flag cube and grow flags
189 0 : for (Int timestep_i=0;timestep_i<nTimesteps;timestep_i++)
190 : {
191 0 : for (Int chan_j=0;chan_j<nChannels;chan_j++)
192 : {
193 0 : for (Int pol_k=0;pol_k<nPols;pol_k++)
194 : {
195 0 : flag = flags.getModifiedFlags(pol_k,chan_j,timestep_i);
196 :
197 : // If the point is flagged we may extend in the time,frequency or polarization direction
198 0 : if (flag)
199 : {
200 0 : if (flagneartime_p)
201 : {
202 : // Extend flags to the next timestep
203 0 : growFlags->operator()(pol_k,chan_j+1,timestep_i + 2) = true;
204 :
205 : // Extend flags to the previous timestep
206 0 : growFlags->operator()(pol_k,chan_j+1,timestep_i) = true;
207 : }
208 :
209 0 : if (flagnearfreq_p)
210 : {
211 : // Extend flags to the next frequency
212 0 : growFlags->operator()(pol_k,chan_j+2,timestep_i+1) = true;
213 :
214 : // Extend flags to the previous frequency
215 0 : growFlags->operator()(pol_k,chan_j,timestep_i+1) = true;
216 : }
217 : }
218 : // Only if the point is not flagged, and grow around is activated, we check the nearest neighbours
219 0 : else if (growaround_p)
220 : {
221 0 : extendAround = 0;
222 0 : for (Int timestep_inner=timestep_i-1;timestep_inner<=timestep_i+1;timestep_inner++)
223 : {
224 : // Calculate number of flagged neighbours
225 0 : for (Int chan_inner=chan_j-1;chan_inner<=chan_j+1;chan_inner++)
226 : {
227 0 : if ( (timestep_inner>=0) and
228 0 : (timestep_inner<nTimesteps) and
229 0 : (chan_inner>=0) and
230 0 : (chan_inner<nChannels))
231 : {
232 0 : extendAround += flags.getModifiedFlags(pol_k,chan_inner,timestep_inner);
233 : }
234 : } // End grow around channel iteration
235 : } // End grow around time iteration
236 :
237 : // Extend flags if we have more than 4 flagged neighbours
238 0 : if (extendAround>4) growFlags->operator()(pol_k,chan_j+1,timestep_i+1) = true;
239 :
240 : } // End grow around
241 :
242 : } // For polarization
243 : } // For channel
244 : } // For timestep
245 :
246 : // Apply grow flags to the common modified flag cube
247 0 : for (uInt timestep_i=0;timestep_i<static_cast<uInt>(nTimesteps);timestep_i++)
248 : {
249 0 : for (uInt chan_j=0;chan_j<static_cast<uInt>(nChannels);chan_j++)
250 : {
251 0 : for (uInt pol_k=0;pol_k<static_cast<uInt>(nPols);pol_k++)
252 : {
253 0 : if (growFlags->operator()(pol_k,chan_j+1,timestep_i+1))
254 : {
255 0 : flags.setModifiedFlags(pol_k,chan_j,timestep_i);
256 0 : visBufferFlags_p += 1;
257 : }
258 : }
259 : }
260 : }
261 :
262 : // Delete growing flag cube
263 0 : delete growFlags;
264 :
265 : } // End grow flags step
266 :
267 :
268 : // STEP2: Extend flags across time and frequency
269 4812 : if ( (growtime_p > 0) or (growfreq_p > 0) )
270 : {
271 : // Per correlation accumulate over time and frequency
272 2244 : Matrix<Double> acummTime(nPols,nTimesteps,0);
273 2244 : Matrix<Double> acummFreq(nPols,nChannels,0);
274 117739 : for (Int timestep_i=0;timestep_i<nTimesteps;timestep_i++)
275 : {
276 6543245 : for (Int chan_j=0;chan_j<nChannels;chan_j++)
277 : {
278 31933606 : for (Int pol_k=0;pol_k<nPols;pol_k++)
279 : {
280 25505856 : flag = flags.getModifiedFlags(pol_k,chan_j,timestep_i);
281 25505856 : acummTime(pol_k,timestep_i) += flag;
282 25505856 : acummFreq(pol_k,chan_j) += flag;
283 : }
284 : }
285 : }
286 :
287 : // Extend across frequency
288 2244 : if (growfreq_p > 0)
289 : {
290 100363 : for (Int timestep_i=0;timestep_i<nTimesteps;timestep_i++)
291 : {
292 488490 : for (Int pol_k=0;pol_k<nPols;pol_k++)
293 : {
294 390179 : if ((100.0*acummTime(pol_k,timestep_i)/nChannels) >= growfreq_p)
295 : {
296 : // Flag all the channels for this polarization and timestep
297 498067 : for (Int chan_j=0;chan_j<nChannels;chan_j++)
298 : {
299 489928 : flags.setModifiedFlags(pol_k,chan_j,timestep_i);
300 489928 : visBufferFlags_p += 1;
301 : }
302 : }
303 : }
304 : }
305 : }
306 :
307 : // Extend across time
308 2244 : if (growtime_p > 0)
309 : {
310 117105 : for (Int chan_j=0;chan_j<nChannels;chan_j++)
311 : {
312 465563 : for (Int pol_k=0;pol_k<nPols;pol_k++)
313 : {
314 350510 : if ((100.0*acummFreq(pol_k,chan_j)/nTimesteps) >= growtime_p)
315 : {
316 : // Flag all the timesteps for this polarization and channel
317 672978 : for (Int timestep_i=0;timestep_i<nTimesteps;timestep_i++)
318 : {
319 573032 : flags.setModifiedFlags(pol_k,chan_j,timestep_i);
320 573032 : visBufferFlags_p += 1;
321 : }
322 : }
323 : }
324 : }
325 : }
326 2244 : }
327 :
328 : // STEP3: Extend across polarizations
329 4812 : if (extendpols_p)
330 : {
331 96313 : for (Int timestep_i=0;timestep_i<nTimesteps;timestep_i++)
332 : {
333 5073107 : for (Int chan_j=0;chan_j<nChannels;chan_j++)
334 : {
335 22377004 : for (Int pol_k=0;pol_k<nPols;pol_k++)
336 : {
337 17696904 : if (flags.getModifiedFlags(pol_k,chan_j,timestep_i))
338 : {
339 1250966 : for (Int ineer_pol_k=0;ineer_pol_k<nPols;ineer_pol_k++)
340 : {
341 949844 : flags.setModifiedFlags(ineer_pol_k,chan_j,timestep_i);
342 : }
343 301122 : visBufferFlags_p += nPols;
344 301122 : break;
345 : }
346 : }
347 : }
348 : }
349 : }
350 :
351 4812 : return false;
352 4812 : }
353 :
354 : } //# NAMESPACE CASA - END
355 :
356 :
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