Coverage for /wheeldirectory/casa-6.7.0-12-py3.10.el8/lib/py/lib/python3.10/site-packages/casatasks/private/task_applycal.py: 72%

1import os 

2import time 

3import numpy as np 

4 

5from .. import casalog 

6from .callibrary import * 

7from . import flaghelper as fh 

8from .parallel.parallel_data_helper import ParallelDataHelper 

9from .parallel.parallel_task_helper import ParallelTaskHelper 

10from .mstools import write_history 

11from casatools import ms, calibrater 

12 

13def applycal( 

14 vis=None, 

15 field=None, 

16 spw=None, 

17 intent=None, 

18 selectdata=None, 

19 timerange=None, 

20 uvrange=None, 

21 antenna=None, 

22 scan=None, 

23 observation=None, 

24 msselect=None, 

25 docallib=None, 

26 callib=None, 

27 gaintable=None, 

28 gainfield=None, 

29 interp=None, 

30 spwmap=None, 

31 calwt=None, 

32 parang=None, 

33 applymode=None, 

34 flagbackup=None, 

35 ): 

36 

37 # Python script 

38 casalog.origin('applycal') 

39 

40 # Take care of the trivial parallelization 

41 if ParallelDataHelper.isMMSAndNotServer(vis): 

42 

43 # Back up the flags, if requested (and if necessary) 

44 if flagbackup and applymode != 'calonly' and applymode != 'trial': 

45 fh.backupFlags(aflocal=None, msfile=vis, prename='applycal') 

46 flagbackup = False 

47 

48 # To be safe convert file names to absolute paths. 

49 gaintable = ParallelTaskHelper.findAbsPath(gaintable) 

50 helper = ParallelTaskHelper('applycal', locals()) 

51 ret = helper.go() 

52 if ParallelTaskHelper.getAsyncMode(): 

53 return ret 

54 else: 

55 return 

56 

57 try: 

58 mycb = calibrater( ) 

59 makecorr = True 

60 if (type(vis) == str) & os.path.exists(vis): 

61 # if applymode is flagonly don't add CORRECTED_DATA column 

62 # otherwise add CORRECTED_DATA column 

63 if applymode in ['flagonly', 'flagonlystrict', 'trial']: 

64 makecorr = False 

65 mycb.open(filename=vis, compress=False, addcorr=makecorr, 

66 addmodel=False) 

67 else: 

68 raise ValueError( 'Visibility data set not found - please verify the name' ) 

69 

70 # enforce default if unspecified 

71 if applymode == '': 

72 applymode = 'calflag' 

73 

74 # Back up the flags, if requested (and if necessary) 

75 if flagbackup and applymode != 'calonly' and applymode \ 

76 != 'trial': 

77 fh.backupFlags(aflocal=None, msfile=vis, prename='applycal') 

78 

79 # Do data selection according to selectdata 

80 if selectdata: 

81 # pass all data selection parameters in as specified 

82 mycb.selectvis( 

83 time=timerange, 

84 spw=spw, 

85 scan=scan, 

86 field=field, 

87 intent=intent, 

88 observation=str(observation), 

89 baseline=antenna, 

90 uvrange=uvrange, 

91 chanmode='none', 

92 msselect=msselect, 

93 ) 

94 else: 

95 # selectdata=F, so time,scan,baseline,uvrange,msselect='' 

96 # using spw and field specifications only 

97 mycb.selectvis( 

98 time='', 

99 spw=spw, 

100 scan='', 

101 field=field, 

102 intent=intent, 

103 observation='', 

104 baseline='', 

105 uvrange='', 

106 chanmode='none', 

107 msselect='', 

108 ) 

109 

110 # Arrange applies.... 

111 

112 if docallib: 

113 # by cal library from file 

114 # parsing using c++ parser 

115 thiscallib=mycb.parsecallibfile(callib) 

116 mycb.setcallib(thiscallib) 

117 

118 else: 

119 

120 # by traditional parameters 

121 

122 ngaintab = 0 

123 if gaintable != ['']: 

124 ngaintab = len(gaintable) 

125 

126 ncalwt = len(calwt) 

127 if ncalwt == 1: 

128 calwt = [calwt[0] for i in range(ngaintab)] 

129 

130 ngainfld = len(gainfield) 

131 nspwmap = len(spwmap) 

132 ninterp = len(interp) 

133 

134 # handle list of list issues with spwmap 

135 if nspwmap > 0: 

136 if type(spwmap[0]) != list: 

137 # first element not a list, only one spwmap specified 

138 # make it a list of list 

139 spwmap = [spwmap] 

140 nspwmap = 1 

141 

142 for igt in range(ngaintab): 

143 if gaintable[igt] != '': 

144 

145 # field selection is null unless specified 

146 thisgainfield = '' 

147 if igt < ngainfld: 

148 thisgainfield = gainfield[igt] 

149 

150 # spwmap is null unless specifed 

151 thisspwmap = [-1] 

152 if igt < nspwmap: 

153 thisspwmap = spwmap[igt] 

154 

155 # interp is 'linear' unless specified 

156 thisinterp = 'linear' 

157 if igt < ninterp: 

158 if interp[igt] == '': 

159 interp[igt] = thisinterp 

160 thisinterp = interp[igt] 

161 

162 mycb.setapply( 

163 t=0.0, 

164 table=gaintable[igt], 

165 field=thisgainfield, 

166 calwt=calwt[igt], 

167 spwmap=thisspwmap, 

168 interp=thisinterp, 

169 ) 

170 

171 # ...and now the specialized terms 

172 

173 # Apply parallactic angle, if requested 

174 if parang: 

175 mycb.setapply(type='P') 

176 

177 mycb.correct(applymode) 

178 

179 # report what the flags did 

180 reportflags(mycb.activityrec()) 

181 

182 

183 # write history 

184 try: 

185 param_names = \ 

186 applycal.__code__.co_varnames[:applycal.__code__.co_argcount] 

187 local_vars = locals( ) 

188 param_vals = [local_vars[p] for p in param_names] 

189 

190 write_history( 

191 ms(), 

192 vis, 

193 'applycal', 

194 param_names, 

195 param_vals, 

196 casalog, 

197 ) 

198 except Exception as instance: 

199 casalog.post("*** Error \'%s\' updating HISTORY" 

200 % instance, 'WARN') 

201 finally: 

202 mycb.close() 

203 

204def reportflags(rec): 

205 try: 

206 if 'origin' in rec and rec['origin'] \ 

207 == 'Calibrater::correct' and 'VisEquation' in rec: 

208 casalog.post('Calibration apply flagging statistics (among calibrateable spws):' 

209 ) 

210 VE = rec['VisEquation'] 

211 nterm = len(VE) 

212 if nterm > 0: 

213 nVisTotal=VE['nVisTotal'] 

214 

215 casalog.post(' Total visibilities selected for correction (ncorr x nchan x nrow summed over spws) = ' 

216 + str(nVisTotal)) 

217 casalog.post(' Flags:') 

218 partlog=False 

219 for iterm in range(nterm-1): # one of the keys is nVisTotal; the rest are caltable indices 

220 VEi = VE['*' + str(iterm + 1)] 

221 

222 nVisThis=VEi['ndata'] 

223 partial=' ' 

224 if nVisThis<nVisTotal: 

225 partlog=True 

226 partial='**' 

227 flstr = ' ' + VEi['type'] 

228 flstr += ': ' 

229 flstr += 'In: ' + str(VEi['nflagIn']) 

230 flstr += ' / '+str(nVisThis)+partial 

231 flstr += ' (' + str(100. * VEi['nflagIn']/nVisThis) + '%) --> ' 

232 flstr += 'Out: ' + str(VEi['nflagOut']) 

233 flstr += ' / '+str(nVisThis)+partial 

234 flstr += ' (' + str(100. * VEi['nflagOut']/nVisThis) + '%)' 

235 

236 if 'table' in VEi: 

237 flstr += ' (' + VEi['table'] + ')' 

238 casalog.post(flstr) 

239 if partlog: 

240 casalog.post(' ** = Denotes caltable that only corrected a subset of total selected visibilities') 

241 

242 except Exception as instance: 

243 # complain mildly, but don't alarm 

244 casalog.post('Error formatting some or all of the applycal flagging log info: ' 

245 + str(instance), 'SEVERE') 

246 

247