1 | # -*- coding: utf-8 -*- |
---|
2 | ########### SVN repository information ################### |
---|
3 | # $Date: 2015-05-04 14:10:23 +0000 (Mon, 04 May 2015) $ |
---|
4 | # $Author: vondreele $ |
---|
5 | # $Revision: 1834 $ |
---|
6 | # $URL: trunk/imports/G2pwd_fxye.py $ |
---|
7 | # $Id: G2pwd_fxye.py 1834 2015-05-04 14:10:23Z vondreele $ |
---|
8 | ########### SVN repository information ################### |
---|
9 | ''' |
---|
10 | *Module G2pwd_fxye: GSAS data files* |
---|
11 | ------------------------------------ |
---|
12 | Routine to read in powder data in a variety of formats |
---|
13 | that are defined for GSAS. |
---|
14 | |
---|
15 | ''' |
---|
16 | import sys |
---|
17 | import os.path as ospath |
---|
18 | import numpy as np |
---|
19 | import GSASIIIO as G2IO |
---|
20 | import GSASIIpath |
---|
21 | GSASIIpath.SetVersionNumber("$Revision: 1834 $") |
---|
22 | |
---|
23 | class GSAS_ReaderClass(G2IO.ImportPowderData): |
---|
24 | 'Routines to import powder data from a GSAS files' |
---|
25 | def __init__(self): |
---|
26 | super(self.__class__,self).__init__( # fancy way to self-reference |
---|
27 | extensionlist=('.fxye','.raw','.gsas','.gda','gsa.','.RAW','.GSAS','.GDA','.GSA'), |
---|
28 | strictExtension=False, |
---|
29 | formatName = 'GSAS powder data', |
---|
30 | longFormatName = 'GSAS powder data files (.fxye, .raw, .gsas...)' |
---|
31 | ) |
---|
32 | self.clockWd = {} |
---|
33 | self.TimeMap = {} |
---|
34 | |
---|
35 | # Validate the contents -- look for a bank line |
---|
36 | def ContentsValidator(self, filepointer): |
---|
37 | 'Validate by checking to see if the file has BANK lines' |
---|
38 | #print 'ContentsValidator: '+self.formatName |
---|
39 | for i,line in enumerate(filepointer): |
---|
40 | self.GSAS = True |
---|
41 | if i==0: # first line is always a comment |
---|
42 | continue |
---|
43 | if i==1 and line[:4].lower() == 'inst': |
---|
44 | # 2nd line is optional instrument parameter file |
---|
45 | continue |
---|
46 | if line[0] == '#': continue |
---|
47 | if line[:4] == 'BANK': |
---|
48 | return True |
---|
49 | elif line[:7] == 'Monitor': continue |
---|
50 | elif line [:8] == 'TIME_MAP': #LANSCE TOF data |
---|
51 | return True |
---|
52 | else: |
---|
53 | self.errors = 'Unexpected information in line: '+str(i+1) |
---|
54 | self.errors += ' '+str(line) |
---|
55 | return False |
---|
56 | return False # no bank records |
---|
57 | |
---|
58 | def Reader(self,filename,filepointer, ParentFrame=None, **kwarg): |
---|
59 | '''Read a GSAS (old formats) file of type FXY, FXYE, ESD or STD types. |
---|
60 | If multiple datasets are requested, use self.repeat and buffer caching. |
---|
61 | ''' |
---|
62 | def GetFXYEdata(File,Pos,Bank): |
---|
63 | File.seek(Pos) |
---|
64 | x = [] |
---|
65 | y = [] |
---|
66 | w = [] |
---|
67 | S = File.readline() |
---|
68 | while S and S[:4] != 'BANK' and S[0] != '#': |
---|
69 | vals = S.split() |
---|
70 | x.append(float(vals[0])/100.) #CW: from centidegrees to degrees |
---|
71 | f = float(vals[1]) |
---|
72 | s = float(vals[2]) |
---|
73 | if f <= 0.0 or s <= 0.0: |
---|
74 | y.append(0.0) |
---|
75 | w.append(0.0) |
---|
76 | else: |
---|
77 | y.append(float(vals[1])) |
---|
78 | w.append(1.0/float(vals[2])**2) |
---|
79 | S = File.readline() |
---|
80 | N = len(x) |
---|
81 | return [np.array(x),np.array(y),np.array(w),np.zeros(N),np.zeros(N),np.zeros(N)] |
---|
82 | |
---|
83 | def GetFXYdata(File,Pos,Bank): |
---|
84 | File.seek(Pos) |
---|
85 | x = [] |
---|
86 | y = [] |
---|
87 | w = [] |
---|
88 | S = File.readline() |
---|
89 | while S and S[:4] != 'BANK' and S[0] != '#': |
---|
90 | vals = S.split() |
---|
91 | x.append(float(vals[0])/100.) #CW: from centidegrees to degrees |
---|
92 | f = float(vals[1]) |
---|
93 | if f > 0.0: |
---|
94 | y.append(f) |
---|
95 | w.append(1.0/f) |
---|
96 | else: |
---|
97 | y.append(0.0) |
---|
98 | w.append(0.0) |
---|
99 | S = File.readline() |
---|
100 | N = len(x) |
---|
101 | return [np.array(x),np.array(y),np.array(w),np.zeros(N),np.zeros(N),np.zeros(N)] |
---|
102 | |
---|
103 | def GetESDdata(File,Pos,Bank): |
---|
104 | File.seek(Pos) |
---|
105 | cons = Bank.split() |
---|
106 | if 'TIME_MAP' == cons[4]: |
---|
107 | start = 0 |
---|
108 | step = 1 |
---|
109 | else: |
---|
110 | start = float(cons[5])/100.0 #CW: from centidegrees to degrees |
---|
111 | step = float(cons[6])/100.0 |
---|
112 | x = [] |
---|
113 | y = [] |
---|
114 | w = [] |
---|
115 | S = File.readline() |
---|
116 | j = 0 |
---|
117 | while S and S[:4] != 'BANK' and S[0] != '#': |
---|
118 | if 'TIME_MAP' in S: |
---|
119 | break |
---|
120 | for i in range(0,80,16): |
---|
121 | if S[i:i+8] == 8*' ': |
---|
122 | break |
---|
123 | xi = start+step*j |
---|
124 | yi = sfloat(S[i:i+8]) |
---|
125 | ei = sfloat(S[i+8:i+16]) |
---|
126 | x.append(xi) |
---|
127 | if yi > 0.0: |
---|
128 | y.append(yi) |
---|
129 | w.append(1.0/ei**2) |
---|
130 | else: |
---|
131 | y.append(0.0) |
---|
132 | w.append(0.0) |
---|
133 | j += 1 |
---|
134 | S = File.readline() |
---|
135 | N = len(x) |
---|
136 | if self.clockWd: |
---|
137 | if len(self.clockWd) == 1: |
---|
138 | x = Tmap2TOF(self.TimeMap['1'],self.clockWd['1']) |
---|
139 | else: |
---|
140 | x = Tmap2TOF(self.TimeMap[cons[5]],self.clockWd[cons[5]]) |
---|
141 | return [np.array(x),np.array(y),np.array(w),np.zeros(N),np.zeros(N),np.zeros(N)] |
---|
142 | |
---|
143 | def GetSTDdata(File,Pos,Bank): |
---|
144 | File.seek(Pos) |
---|
145 | cons = Bank.split() |
---|
146 | Nch = int(cons[2]) |
---|
147 | if self.clockWd: |
---|
148 | start = 0 |
---|
149 | step = 1 |
---|
150 | else: |
---|
151 | start = float(cons[5])/100.0 #CW: from centidegrees to degrees |
---|
152 | step = float(cons[6])/100.0 #NB TOF 0.1*ms! |
---|
153 | x = [] |
---|
154 | y = [] |
---|
155 | w = [] |
---|
156 | S = File.readline() |
---|
157 | j = 0 |
---|
158 | while S and S[:4] != 'BANK' and S[0] != '#': |
---|
159 | for i in range(0,80,8): |
---|
160 | if S[i:i+10] == 10*' ': |
---|
161 | break |
---|
162 | xi = start+step*j |
---|
163 | ni = max(sint(S[i:i+2]),1) |
---|
164 | yi = max(sfloat(S[i+2:i+8]),0.0) |
---|
165 | if yi: |
---|
166 | vi = yi/ni |
---|
167 | else: |
---|
168 | yi = 0.0 |
---|
169 | vi = 0.0 |
---|
170 | j += 1 |
---|
171 | if j < Nch: |
---|
172 | x.append(xi) |
---|
173 | if vi <= 0.: |
---|
174 | y.append(0.) |
---|
175 | w.append(0.) |
---|
176 | else: |
---|
177 | y.append(yi) |
---|
178 | w.append(1.0/vi) |
---|
179 | S = File.readline() |
---|
180 | N = len(x) |
---|
181 | if self.clockWd: |
---|
182 | if len(self.clockWd) == 1: |
---|
183 | x = Tmap2TOF(self.TimeMap['1'],self.clockWd['1']) |
---|
184 | else: |
---|
185 | x = Tmap2TOF(self.TimeMap[cons[5]],self.clockWd[cons[5]]) |
---|
186 | return [np.array(x),np.array(y),np.array(w),np.zeros(N),np.zeros(N),np.zeros(N)] |
---|
187 | |
---|
188 | def GetALTdata(File,Pos,Bank): |
---|
189 | File.seek(Pos) |
---|
190 | cons = Bank.split() |
---|
191 | x = [] |
---|
192 | y = [] |
---|
193 | w = [] |
---|
194 | S = File.readline() |
---|
195 | j = 0 |
---|
196 | while S and S[:4] != 'BANK' and S[0] != '#': |
---|
197 | for i in range(0,80,20): |
---|
198 | if S[i:i+8] == 9*' ': |
---|
199 | break |
---|
200 | xi = sfloat(S[i:i+9])/3200. |
---|
201 | yi = sfloat(S[i+9:i+16])/1000. |
---|
202 | ei = sfloat(S[i+16:i+21])/1000. |
---|
203 | x.append(xi) |
---|
204 | if yi > 0.0: |
---|
205 | y.append(yi) |
---|
206 | w.append(1.0/ei**2) |
---|
207 | else: |
---|
208 | y.append(0.0) |
---|
209 | w.append(0.0) |
---|
210 | j += 1 |
---|
211 | S = File.readline() |
---|
212 | N = len(x) |
---|
213 | if self.clockWd: |
---|
214 | x = Tmap2TOF(self.TimeMap[cons[5]],self.clockWd[cons[5]]) |
---|
215 | return [np.array(x),np.array(y),np.array(w),np.zeros(N),np.zeros(N),np.zeros(N)] |
---|
216 | |
---|
217 | def GetTimeMap(File,Pos,TimeMap): |
---|
218 | File.seek(Pos) |
---|
219 | cons = TimeMap[8:].split() |
---|
220 | mapNo = cons[0] |
---|
221 | if 'TIME_MAP10' in TimeMap: mapNo = '1' #HIPD cluge! |
---|
222 | Nch = int(cons[1]) |
---|
223 | Nrec = int(cons[2]) |
---|
224 | clockWd = float(cons[4])/1000. #in mus |
---|
225 | TMap = np.zeros(Nch+2,dtype=int) |
---|
226 | ind = 0 |
---|
227 | for i in range(Nrec): |
---|
228 | S = File.readline().rstrip('\n') |
---|
229 | vals = S.split() |
---|
230 | for val in vals: |
---|
231 | TMap[ind] = int(val) |
---|
232 | ind += 1 |
---|
233 | TMap = np.reshape(TMap,(-1,3)) |
---|
234 | TMax = TMap[-1][0] |
---|
235 | Nch = TMap[-2][0]+(TMax-TMap[-2][1]+TMap[-2][2]-1)/TMap[-2][2] |
---|
236 | TMap[-1] = [Nch+1,TMax,0] |
---|
237 | TMap = TMap.T |
---|
238 | TMap[0] -= 1 |
---|
239 | return TMap.T,clockWd,mapNo |
---|
240 | |
---|
241 | def Tmap2TOF(TMap,clockWd): |
---|
242 | TOF = [] |
---|
243 | chWdt = [] |
---|
244 | Tch,T,Step = TMap[0] |
---|
245 | for tmap in TMap[1:]: |
---|
246 | tch,t,step = tmap |
---|
247 | TOF += [T+Step*(i-Tch) for i in range(Tch,tch)] |
---|
248 | Tch,T,Step = tmap |
---|
249 | TOF = np.array(TOF)*clockWd |
---|
250 | return TOF |
---|
251 | |
---|
252 | x = [] |
---|
253 | y = [] |
---|
254 | w = [] |
---|
255 | Banks = [] |
---|
256 | Pos = [] |
---|
257 | rdbuffer = kwarg.get('buffer') |
---|
258 | title = '' |
---|
259 | comments = None |
---|
260 | # selections = None |
---|
261 | |
---|
262 | # reload previously saved values |
---|
263 | if self.repeat and rdbuffer is not None: |
---|
264 | Banks = rdbuffer.get('Banks') |
---|
265 | Pos = rdbuffer.get('Pos') |
---|
266 | self.selections = rdbuffer.get('selections') |
---|
267 | comments = rdbuffer.get('comments') |
---|
268 | |
---|
269 | # read through the file and find the beginning of each bank |
---|
270 | # Save the offset (Pos), BANK line (Banks), comments for each bank |
---|
271 | # |
---|
272 | # This is going to need a fair amount of work to track line numbers |
---|
273 | # in the input file. |
---|
274 | if len(Banks) != len(Pos) or len(Banks) == 0: |
---|
275 | try: |
---|
276 | i = -1 |
---|
277 | while True: |
---|
278 | i += 1 |
---|
279 | S = filepointer.readline() |
---|
280 | if len(S) == 0: break |
---|
281 | |
---|
282 | if i==0: # first line is always a comment |
---|
283 | self.errors = 'Error reading title' |
---|
284 | title = S[:-1] |
---|
285 | comments = [[title,]] |
---|
286 | continue |
---|
287 | if i==1 and S[:4].lower() == 'inst' and ':' in S: |
---|
288 | # 2nd line is instrument parameter file (optional) |
---|
289 | self.errors = 'Error reading instrument parameter filename' |
---|
290 | self.instparm = S.split(':')[1].strip('[]').strip() |
---|
291 | continue |
---|
292 | if S[0] == '#': # allow comments anywhere in the file |
---|
293 | # comments in fact should only preceed BANK lines |
---|
294 | comments[-1].append(S[:-1]) |
---|
295 | continue |
---|
296 | if S[:4] == 'BANK': |
---|
297 | self.errors = 'Error reading bank:' |
---|
298 | self.errors += ' '+str(S) |
---|
299 | comments.append([title,]) |
---|
300 | Banks.append(S) |
---|
301 | Pos.append(filepointer.tell()) |
---|
302 | if S[:8] == 'TIME_MAP': #assumes one time map; HIPPO has multiple time maps |
---|
303 | if len(Banks) == 0: |
---|
304 | self.errors = 'Error reading time map before any bank lines' |
---|
305 | else: |
---|
306 | self.errors = 'Error reading time map after bank:\n '+str(Banks[-1]) |
---|
307 | timemap,clockwd,mapNo = GetTimeMap(filepointer,filepointer.tell(),S) |
---|
308 | self.TimeMap[mapNo] = timemap |
---|
309 | self.clockWd[mapNo] = clockwd |
---|
310 | |
---|
311 | except Exception as detail: |
---|
312 | self.errors += '\n '+str(detail) |
---|
313 | print self.formatName+' scan error:'+str(detail) # for testing |
---|
314 | import traceback |
---|
315 | traceback.print_exc(file=sys.stdout) |
---|
316 | return False |
---|
317 | |
---|
318 | # Now select the bank to read |
---|
319 | if not Banks: # use of ContentsValidator should prevent this error |
---|
320 | print self.formatName+' scan error: no BANK records' |
---|
321 | selblk = None # no block to choose |
---|
322 | self.errors = 'No BANK records found (strange!)' |
---|
323 | return False |
---|
324 | elif len(Banks) == 1: # only one Bank, don't ask |
---|
325 | selblk = 0 |
---|
326 | elif self.repeat and self.selections is not None: |
---|
327 | # we were called to repeat the read |
---|
328 | #print 'debug: repeat #',self.repeatcount,'selection',self.selections[self.repeatcount] |
---|
329 | selblk = self.selections[self.repeatcount] |
---|
330 | self.repeatcount += 1 |
---|
331 | if self.repeatcount >= len(self.selections): self.repeat = False |
---|
332 | else: # choose from options |
---|
333 | if not len(self.selections): #use previous selection, otherwise... |
---|
334 | self.selections = self.MultipleBlockSelector( |
---|
335 | Banks, |
---|
336 | ParentFrame=ParentFrame, |
---|
337 | title='Select Bank(s) to read from the list below', |
---|
338 | size=(600,100), |
---|
339 | header='Dataset Selector') |
---|
340 | if len(self.selections) == 0: return False |
---|
341 | selblk = self.selections[0] # select first in list |
---|
342 | if len(self.selections) > 1: # prepare to loop through again |
---|
343 | self.repeat = True |
---|
344 | self.repeatcount = 1 |
---|
345 | if rdbuffer is not None: |
---|
346 | rdbuffer['Banks'] = Banks |
---|
347 | rdbuffer['Pos'] = Pos |
---|
348 | rdbuffer['selections'] = self.selections |
---|
349 | rdbuffer['comments'] = comments |
---|
350 | |
---|
351 | # got a selection, now read it |
---|
352 | Bank = Banks[selblk] |
---|
353 | try: |
---|
354 | bnkNo = int(Bank.split()[1]) |
---|
355 | except ValueError: |
---|
356 | bnkNo = 1 |
---|
357 | try: |
---|
358 | if 'FXYE' in Bank: |
---|
359 | self.errors = 'Error reading FXYE data in Bank\n '+Banks[selblk] |
---|
360 | self.powderdata = GetFXYEdata(filepointer,Pos[selblk],Banks[selblk]) |
---|
361 | elif 'FXY' in Bank: |
---|
362 | self.errors = 'Error reading FXY data in Bank\n '+Banks[selblk] |
---|
363 | self.powderdata = GetFXYdata(filepointer,Pos[selblk],Banks[selblk]) |
---|
364 | elif 'ESD' in Bank: |
---|
365 | self.errors = 'Error reading ESD data in Bank\n '+Banks[selblk] |
---|
366 | self.powderdata = GetESDdata(filepointer,Pos[selblk],Banks[selblk]) |
---|
367 | elif 'STD' in Bank: |
---|
368 | self.errors = 'Error reading STD data in Bank\n '+Banks[selblk] |
---|
369 | self.powderdata = GetSTDdata(filepointer,Pos[selblk],Banks[selblk]) |
---|
370 | elif 'ALT' in Bank: |
---|
371 | self.errors = 'Error reading ALT data in Bank\n '+Banks[selblk] |
---|
372 | self.powderdata = GetALTdata(filepointer,Pos[selblk],Banks[selblk]) |
---|
373 | else: |
---|
374 | self.errors = 'Error reading STD data in Bank\n '+Banks[selblk] |
---|
375 | self.powderdata = GetSTDdata(filepointer,Pos[selblk],Banks[selblk]) |
---|
376 | except Exception as detail: |
---|
377 | self.errors += '\n '+str(detail) |
---|
378 | print self.formatName+' read error:'+str(detail) # for testing |
---|
379 | import traceback |
---|
380 | traceback.print_exc(file=sys.stdout) |
---|
381 | return False |
---|
382 | |
---|
383 | self.errors = 'Error processing information after read complete' |
---|
384 | if comments is not None: |
---|
385 | self.comments = comments[selblk] |
---|
386 | self.powderentry[0] = filename |
---|
387 | self.powderentry[1] = Pos # position offset (never used, I hope) |
---|
388 | self.powderentry[2] = bnkNo #selblk+1 # bank number |
---|
389 | self.idstring = ospath.basename(filename) + ' Bank '+str(bnkNo) #selblk+1) |
---|
390 | self.numbanks=len(Banks) |
---|
391 | # scan comments for temperature & radius |
---|
392 | Temperature = 300. |
---|
393 | for S in self.comments: |
---|
394 | if 'Temp' in S.split('=')[0]: |
---|
395 | try: |
---|
396 | Temperature = float(S.split('=')[1]) |
---|
397 | except: |
---|
398 | pass |
---|
399 | elif 'Gonio' in S.split('=')[0]: |
---|
400 | try: |
---|
401 | self.Sample['Gonio. radius'] = float(S.split('=')[1]) |
---|
402 | except: |
---|
403 | pass |
---|
404 | elif 'Omega' in S.split('=')[0] or 'Theta' in S.split('=')[0]: #HIPD weirdness |
---|
405 | try: |
---|
406 | self.Sample['Omega'] = 90.-float(S.split('=')[1]) |
---|
407 | except: |
---|
408 | pass |
---|
409 | elif 'Chi' in S.split('=')[0]: |
---|
410 | try: |
---|
411 | self.Sample['Chi'] = -float(S.split('=')[1]) |
---|
412 | except: |
---|
413 | pass |
---|
414 | elif 'Phi' in S.split('=')[0]: |
---|
415 | try: |
---|
416 | self.Sample['Phi'] = float(S.split('=')[1]) |
---|
417 | except: |
---|
418 | pass |
---|
419 | self.Sample['Temperature'] = Temperature |
---|
420 | return True |
---|
421 | |
---|
422 | def sfloat(S): |
---|
423 | 'convert a string to a float, treating an all-blank string as zero' |
---|
424 | if S.strip(): |
---|
425 | return float(S) |
---|
426 | else: |
---|
427 | return 0.0 |
---|
428 | |
---|
429 | def sint(S): |
---|
430 | 'convert a string to an integer, treating an all-blank string as zero' |
---|
431 | if S.strip(): |
---|
432 | return int(S) |
---|
433 | else: |
---|
434 | return 0 |
---|