ResolutionCalculatorPanel.py @ c7ebb37

ESS_GUIESS_GUI_DocsESS_GUI_batch_fittingESS_GUI_bumps_abstractionESS_GUI_iss1116ESS_GUI_iss879ESS_GUI_iss959ESS_GUI_openclESS_GUI_orderingESS_GUI_sync_sascalc

Last change on this file since c7ebb37 was d6b8a1d, checked in by Piotr Rozyczko <rozyczko@…>, 7 years ago
More Qt5 related fixes
Property mode set to `100644`
File size: 30.9 KB

Line
1	"""
2	This object is a small tool to allow user to quickly
3	determine the variance in q from the
4	instrumental parameters.
5	"""
6	from PyQt5 import QtCore
7	from PyQt5 import QtGui
8	from PyQt5 import QtWidgets
9
10	from twisted.internet import threads
11	import sas.qtgui.Utilities.GuiUtils as GuiUtils
12	from sas.qtgui.Plotting.PlotterData import Data2D
13	from sas.qtgui.Plotting.Plotter2D import Plotter2DWidget
14	from sas.sascalc.calculator.resolution_calculator import ResolutionCalculator
15	import matplotlib.patches as patches
16
17	import numpy
18	import sys
19	import logging
20	import os
21	import re
22
23	from .UI.ResolutionCalculatorPanelUI import Ui_ResolutionCalculatorPanel
24
25	_SOURCE_MASS = {'Alpha': 6.64465620E-24,
26	'Deuteron': 3.34358320E-24,
27	'Neutron': 1.67492729E-24,
28	'Photon': 0.0,
29	'Proton': 1.67262137E-24,
30	'Triton': 5.00826667E-24}
31
32	BG_WHITE = "background-color: rgb(255, 255, 255);"
33	BG_RED = "background-color: rgb(244, 170, 164);"
34
35
36	class ResolutionCalculatorPanel(QtWidgets.QDialog, Ui_ResolutionCalculatorPanel):
37	"""
38	compute resolution in 2D
39	"""
40	def __init__(self, parent=None):
41	super(ResolutionCalculatorPanel, self).__init__()
42	self.setupUi(self)
43	self.manager = parent
44
45	# New font to display angstrom symbol
46	new_font = 'font-family: -apple-system, "Helvetica Neue", "Ubuntu";'
47	self.lblUnitWavelength.setStyleSheet(new_font)
48	self.lblUnitQx.setStyleSheet(new_font)
49	self.lblUnitQy.setStyleSheet(new_font)
50	self.lblUnitSigmax.setStyleSheet(new_font)
51	self.lblUnitSigmay.setStyleSheet(new_font)
52	self.lblUnitSigmalamd.setStyleSheet(new_font)
53	self.lblUnit1DSigma.setStyleSheet(new_font)
54
55	# by default Spectrum label and cbCustomSpectrum are not visible
56	self.cbCustomSpectrum.setVisible(False)
57	self.lblSpectrum.setVisible(False)
58	# self.onReset()
59
60	# change index of comboboxes
61	self.cbWaveColor.currentIndexChanged.connect(self.onSelectWaveColor)
62	self.cbCustomSpectrum.currentIndexChanged.connect(self.onSelectCustomSpectrum)
63
64	# push buttons
65	self.cmdClose.clicked.connect(self.accept)
66	self.cmdHelp.clicked.connect(self.onHelp)
67	self.cmdCompute.clicked.connect(self.onCompute)
68	self.cmdReset.clicked.connect(self.onReset)
69
70	# input defaults
71	self.qx = []
72	self.qy = []
73	# dQ defaults
74	self.sigma_r = None
75	self.sigma_phi = None
76	self.sigma_1d = None
77
78	# number of bins for wavelength and wavelength spread
79	self.num_wave = 10
80	self.spectrum_dic = {}
81
82	# dQ 2d image
83	self.image = None
84	# Source selection dic
85	self.source_mass = _SOURCE_MASS
86	# detector coordinate of estimation of sigmas
87	self.det_coordinate = 'cartesian'
88
89	self.resolution = ResolutionCalculator()
90	self.spectrum_dic['Add new'] = ''
91	self.spectrum_dic['Flat'] = self.resolution.get_default_spectrum()
92	self.resolution.set_spectrum(self.spectrum_dic['Flat'])
93
94	# validators
95	self.txtWavelength.editingFinished.connect(self.checkWavelength)
96	self.txtWavelengthSpread.editingFinished.connect(self.checkWavelengthSpread)
97
98	self.txtDetectorPixSize.editingFinished.connect(self.checkPixels)
99	self.txtDetectorSize.editingFinished.connect(self.checkPixels)
100
101	self.txtSourceApertureSize.editingFinished.connect(self.checkAperture)
102	self.txtSampleApertureSize.editingFinished.connect(self.checkAperture)
103
104	self.txtQx.editingFinished.connect(self.checkQx_y)
105	self.txtQy.editingFinished.connect(self.checkQx_y)
106
107	# double validator
108	self.txtSource2SampleDistance.setValidator(GuiUtils.DoubleValidator())
109	self.txtSample2DetectorDistance.setValidator(GuiUtils.DoubleValidator())
110	self.txtSampleOffset.setValidator(GuiUtils.DoubleValidator())
111
112	# call compute to calculate with default values
113	self.createTemplate2DPlot()
114	#self.onCompute()
115
116	# #################################
117	# Validators: red background in line edits when wrong input
118	# and display of info logging message
119	# #################################
120
121	def checkWavelength(self):
122	""" Validator for Wavelength
123	if TOF, wavelength = min - max else only one number """
124	text_edit = self.txtWavelength # self.sender()
125	if text_edit.isModified():
126	text_edit.setStyleSheet(BG_WHITE)
127	input_string = str(text_edit.text())
128	if self.cbWaveColor.currentText() != 'TOF':
129	input_wavelength = re.match('\d+\.?\d*', input_string)
130	if input_wavelength is None:
131	text_edit.setStyleSheet(BG_RED)
132	self.cmdCompute.setEnabled(False)
133	logging.info('Wavelength has to be a number.')
134	else:
135	text_edit.setStyleSheet(BG_WHITE)
136	self.cmdCompute.setEnabled(True)
137	else:
138	interval_wavelength = re.match('^\d+\.?\d\s-\s\d+\.?\d$',
139	input_string)
140
141	if interval_wavelength is None:
142	text_edit.setStyleSheet(BG_RED)
143	self.cmdCompute.setEnabled(False)
144	logging.info("Wavelength's input has to be an interval: "
145	"min - max.")
146	else:
147	# check on min < max
148	[wavelength_min, wavelength_max] = \
149	re.findall('\d+\.?\d*', interval_wavelength.group())
150
151	if float(wavelength_min) >= float(wavelength_max):
152	text_edit.setStyleSheet(BG_RED)
153	self.cmdCompute.setEnabled(False)
154	logging.info("Wavelength: min must be smaller than max.")
155
156	else:
157	text_edit.setStyleSheet(BG_WHITE)
158	self.cmdCompute.setEnabled(True)
159
160	def checkWavelengthSpread(self):
161	""" Validator for WavelengthSpread
162	Input can be a 'number or min - max (; Number of bins)' """
163	text_edit = self.sender()
164
165	if text_edit.isModified():
166	text_edit.setStyleSheet(BG_WHITE)
167	if self.cbWaveColor.currentText() != 'TOF':
168	pattern = '^\d+\.?\d(\|;\s\d+)$'
169	input_string = str(text_edit.text())
170	wavelength_spread_input = re.match(pattern, input_string)
171
172	if wavelength_spread_input is None:
173	text_edit.setStyleSheet(BG_RED)
174	self.cmdCompute.setEnabled(False)
175	logging.info('Wavelength spread has to be specified: '
176	'single value or value; integer number of bins.')
177
178	else:
179	split_input = wavelength_spread_input.group().split(';')
180	self.num_wave = split_input[1] if len(split_input) > 1 else 10
181	text_edit.setStyleSheet(BG_WHITE)
182	self.cmdCompute.setEnabled(True)
183	else:
184	pattern = '^\d+\.?\d\s-\s\d+\.?\d(\|;\s*\d+)$'
185	input_string = str(text_edit.text())
186	wavelength_spread_input = re.match(pattern, input_string)
187
188	if wavelength_spread_input is None:
189	text_edit.setStyleSheet(BG_RED)
190	self.cmdCompute.setEnabled(False)
191	logging.info("Wavelength spread has to be specified: "
192	"doublet separated by '-' with optional "
193	"number of bins (given after ';'). "
194	"For example, 0.1 - 0.1 (; 20).")
195
196	else:
197	split_input = wavelength_spread_input.group().split(';')
198	self.num_wave = split_input[1] if len(
199	split_input) > 1 else 10
200	text_edit.setStyleSheet(BG_WHITE)
201	self.cmdCompute.setEnabled(True)
202
203	def checkPixels(self):
204	""" Validator for detector pixel size and number """
205	text_edit = self.sender()
206
207	if text_edit.isModified():
208	text_edit.setStyleSheet(BG_WHITE)
209	pattern = '^\d+\.?\d,\s\d+\.?\d*$'
210	input_string = str(text_edit.text())
211	pixels_input = re.match(pattern, input_string)
212
213	if pixels_input is None:
214	text_edit.setStyleSheet(BG_RED)
215	self.cmdCompute.setEnabled(False)
216	logging.info('The input for the detector should contain 2 '
217	'values separated by a comma.')
218
219	else:
220	text_edit.setStyleSheet(BG_WHITE)
221	self.cmdCompute.setEnabled(True)
222
223	def checkQx_y(self):
224	""" Validator for qx and qy inputs """
225	Q_modified = [self.txtQx.isModified(), self.txtQy.isModified()]
226	if any(Q_modified):
227	pattern = '^-?\d+\.?\d(,\s-?\d+\.?\d)$'
228	text_edit = self.txtQx if Q_modified[0] else self.txtQy
229	input_string = str(text_edit.text())
230	q_input = re.match(pattern, input_string)
231	if q_input is None:
232	text_edit.setStyleSheet(BG_RED)
233	self.cmdCompute.setEnabled(False)
234	logging.info('Qx and Qy should contain one or more comma-separated numbers.')
235	else:
236	text_edit.setStyleSheet(BG_WHITE)
237	self.cmdCompute.setEnabled(True)
238	qx = str(self.txtQx.text()).split(',')
239	qy = str(self.txtQy.text()).split(',')
240
241	if len(qx) == 1 and len(qy) > 1:
242	fill_qx = ', '.join([qx[0]] * len(qy))
243	self.txtQx.setText(fill_qx)
244
245	elif len(qy) == 1 and len(qx) > 1:
246	fill_qy = ', '.join([qy[0]] * len(qx))
247	self.txtQy.setText(fill_qy)
248
249	elif len(qx) != len(qy):
250	text_edit.setStyleSheet(BG_RED)
251	self.cmdCompute.setEnabled(False)
252	logging.info(
253	'Qx and Qy should have the same number of elements.')
254
255	else:
256	text_edit.setStyleSheet(BG_WHITE)
257	self.cmdCompute.setEnabled(True)
258
259	def checkAperture(self):
260	""" Validator for Sample and Source apertures"""
261	text_edit = self.sender()
262
263	if text_edit.isModified():
264	text_edit.setStyleSheet(BG_WHITE)
265	input_string = str(text_edit.text())
266	pattern = '^\d+\.?\d(\|,\s\d+)$'
267	aperture_input = re.match(pattern, input_string)
268
269	if aperture_input is None:
270	text_edit.setStyleSheet(BG_RED)
271	self.cmdCompute.setEnabled(False)
272	logging.info('A circular aperture is defined by a single '
273	'value (diameter). A rectangular aperture is '
274	'defined by 2 values separated by a comma.')
275
276	else:
277	text_edit.setStyleSheet(BG_WHITE)
278	self.cmdCompute.setEnabled(True)
279
280	# #################################
281	# Slots associated with signals from comboboxes
282	# #################################
283
284	def onSelectWaveColor(self):
285	""" Modify layout of GUI when TOF selected: add elements
286	and modify default entry of Wavelength """
287	list_wdata = self.resolution.get_wave_list()
288	min_lambda = min(list_wdata[0])
289
290	min_wspread = min(list_wdata[1])
291	max_wspread = max(list_wdata[1])
292
293	if self.cbWaveColor.currentText() == 'TOF':
294	self.cbCustomSpectrum.setVisible(True)
295	self.lblSpectrum.setVisible(True)
296	# Get information about wavelength and spread
297
298	if len(list_wdata[0]) < 2:
299	max_lambda = 2 * min_lambda
300	else:
301	max_lambda = max(list_wdata[0])
302	self.txtWavelength.setText('{} - {}'.format(min_lambda, max_lambda))
303	self.txtWavelengthSpread.setText('{} - {}'.format(min_wspread,
304	max_wspread))
305
306	else:
307	self.cbCustomSpectrum.setVisible(False)
308	self.lblSpectrum.setVisible(False)
309	# modify Wavelength line edit only if set for TOF (2 elements)
310
311	if len(self.txtWavelength.text().split('-')) >= 2:
312	self.txtWavelength.setText(str(min_lambda))
313	self.txtWavelengthSpread.setText(str(min_wspread))
314
315	def onSelectCustomSpectrum(self):
316	""" On Spectrum Combobox event"""
317	if self.cbCustomSpectrum.currentText() == 'Add New':
318	datafile = QtWidgets.QFileDialog.getOpenFileName(
319	self, "Choose a spectral distribution file","",
320	"All files (.)", None,
321	QtWidgets.QFileDialog.DontUseNativeDialog)[0]
322
323	if datafile is None or str(datafile) == '':
324	logging.info("No spectral distribution data chosen.")
325	self.cbCustomSpectrum.setCurrentIndex(0)
326	self.resolution.set_spectrum(self.spectrum_dic['Flat'])
327	return
328
329	try:
330	basename = os.path.basename(datafile)
331	if basename not in list(self.spectrum_dic.keys()):
332	self.cbCustomSpectrum.addItem(basename)
333
334	input_f = open(datafile, 'r')
335	buff = input_f.read()
336	lines = buff.split('\n')
337
338	wavelength = []
339	intensity = []
340
341	for line in lines:
342	toks = line.split()
343	try:
344	wave = float(toks[0])
345	intens = float(toks[1])
346	wavelength.append(wave)
347	intensity.append(intens)
348	except:
349	logging.info('Could not extract values from file')
350	except:
351	raise
352
353	self.spectrum_dic[basename] = [wavelength, intensity]
354	self.resolution.set_spectrum(self.spectrum_dic[basename])
355	return
356
357	# #################################
358	# Slots associated with signals from push buttons
359	# #################################
360
361	def onHelp(self):
362	"""
363	Bring up the Resolution Calculator Documentation whenever
364	the HELP button is clicked.
365	Calls Documentation Window with the path of the location within the
366	documentation tree (after /doc/ ....".
367	"""
368	try:
369	location = GuiUtils.HELP_DIRECTORY_LOCATION + \
370	"/user/sasgui/perspectives/calculator/resolution_calculator_help.html"
371	self.manager._helpView.load(QtCore.QUrl(location))
372	self.manager._helpView.show()
373
374	except AttributeError:
375	# No manager defined - testing and standalone runs
376	pass
377
378	def onReset(self):
379	# by default Spectrum label and cbCustomSpectrum are not visible
380	self.cbCustomSpectrum.setVisible(False)
381	self.lblSpectrum.setVisible(False)
382	# Comboboxes
383	self.cbCustomSpectrum.setCurrentIndex([self.cbCustomSpectrum.itemText(i)
384	for i in range(self.cbCustomSpectrum.count())].index('Flat'))
385	self.cbSource.setCurrentIndex([self.cbSource.itemText(i) for i in
386	range(self.cbSource.count())].index('Neutron'))
387	self.cbWaveColor.setCurrentIndex([self.cbWaveColor.itemText(i) for i
388	in range(self.cbWaveColor.count())].index('Monochromatic'))
389	# LineEdits
390	self.txtDetectorPixSize.setText('0.5, 0.5')
391	self.txtDetectorSize.setText('128, 128')
392	self.txtSample2DetectorDistance.setText('1000')
393	self.txtSampleApertureSize.setText('1.27')
394	self.txtSampleOffset.setText('0')
395	self.txtSource2SampleDistance.setText('1627')
396	self.txtSourceApertureSize.setText('3.81')
397	self.txtWavelength.setText('6.0')
398	self.txtWavelengthSpread.setText('0.125')
399	self.txtQx.setText('0.0')
400	self.txtQy.setText('0.0')
401	self.txt1DSigma.setText('0.0008289')
402	self.txtSigma_x.setText('0.0008288')
403	self.txtSigma_y.setText('0.0008288')
404	self.txtSigma_lamd.setText('3.168e-05')
405
406	self.image = None
407	self.source_mass = _SOURCE_MASS
408	self.det_coordinate = 'cartesian'
409	self.num_wave = 10
410	self.spectrum_dic = {}
411	self.spectrum_dic['Add new'] = ''
412	self.spectrum_dic['Flat'] = self.resolution.get_default_spectrum()
413	self.resolution.set_spectrum(self.spectrum_dic['Flat'])
414	# Reset plot
415	self.onCompute()
416
417	# TODO Keep legacy validators??
418	def onCompute(self):
419	"""
420	Execute the computation of resolution
421	"""
422	# Q min max list default
423	qx_min = []
424	qx_max = []
425	qy_min = []
426	qy_max = []
427	# possible max qrange
428	self.resolution.qxmin_limit = 0
429	self.resolution.qxmax_limit = 0
430	self.resolution.qymin_limit = 0
431	self.resolution.qymax_limit = 0
432
433	try:
434	# Get all the values to compute
435	wavelength = self._str2longlist(self.txtWavelength.text())
436
437	source = self.cbSource.currentText()
438	mass = self.source_mass[str(source)]
439	self.resolution.set_neutron_mass(float(mass))
440
441	wavelength_spread = self._str2longlist(\
442	self.txtWavelengthSpread.text().split(';')[0])
443	# Validate the wave inputs
444	wave_input = self._validate_q_input(wavelength, wavelength_spread)
445	if wave_input is not None:
446	wavelength, wavelength_spread = wave_input
447
448	self.resolution.set_wave(wavelength)
449	self.resolution.set_wave_spread(wavelength_spread)
450
451	# use legacy validator for correct input assignment
452
453	source_aperture_size = self.txtSourceApertureSize.text()
454	source_aperture_size = self._str2longlist(source_aperture_size)
455	self.resolution.set_source_aperture_size(source_aperture_size)
456
457	sample_aperture_size = self.txtSampleApertureSize.text()
458	sample_aperture_size = self._string2list(sample_aperture_size)
459	self.resolution.set_sample_aperture_size(sample_aperture_size)
460
461	source2sample_distance = self.txtSource2SampleDistance.text()
462	source2sample_distance = self._string2list(source2sample_distance)
463	self.resolution.set_source2sample_distance(source2sample_distance)
464
465	sample2sample_distance = self.txtSampleOffset.text()
466	sample2sample_distance = self._string2list(sample2sample_distance)
467	self.resolution.set_sample2sample_distance(sample2sample_distance)
468
469	sample2detector_distance = self.txtSample2DetectorDistance.text()
470	sample2detector_distance = self._string2list(
471	sample2detector_distance)
472	self.resolution.set_sample2detector_distance(
473	sample2detector_distance)
474
475	detector_size = self.txtDetectorSize.text()
476	detector_size = self._string2list(detector_size)
477	self.resolution.set_detector_size(detector_size)
478
479	detector_pix_size = self.txtDetectorPixSize.text()
480	detector_pix_size = self._string2list(detector_pix_size)
481	self.resolution.set_detector_pix_size(detector_pix_size)
482
483	self.qx = self._string2inputlist(self.txtQx.text())
484	self.qy = self._string2inputlist(self.txtQy.text())
485
486	# Find min max of qs
487	xmin = min(self.qx)
488	xmax = max(self.qx)
489	ymin = min(self.qy)
490	ymax = max(self.qy)
491	if not self._validate_q_input(self.qx, self.qy):
492	raise ValueError("Invalid Q input")
493	except:
494	msg = "An error occurred during the resolution computation."
495	msg += "Please check your inputs..."
496	logging.warning(msg)
497	return
498
499	# Validate the q inputs
500	q_input = self._validate_q_input(self.qx, self.qy)
501	if q_input is not None:
502	self.qx, self.qy = q_input
503
504	# Make list of q min max for mapping
505	for i in range(len(self.qx)):
506	qx_min.append(xmin)
507	qx_max.append(xmax)
508	for i in range(len(self.qy)):
509	qy_min.append(ymin)
510	qy_max.append(ymax)
511
512	# Compute the resolution
513	if self.image is not None:
514	self.resolution.reset_image()
515
516	# Compute and get the image plot
517	try:
518	cal_res = threads.deferToThread(self.map_wrapper,
519	self.calc_func,
520	self.qx,
521	self.qy,
522	qx_min,
523	qx_max,
524	qy_min, qy_max)
525
526	cal_res.addCallback(self.complete)
527	cal_res.addErrback(self.calculateFailed)
528
529	# logging.info("Computation is in progress...")
530	self.cmdCompute.setText('Wait...')
531	self.cmdCompute.setEnabled(False)
532	except:
533	raise
534
535	def calculateFailed(self, reason):
536	print("calculateFailed Failed with:\n", reason)
537	pass
538
539	def complete(self, image):
540	"""
541	Complete computation
542	"""
543	self.image = image
544
545	# Get and format the sigmas
546	sigma_r = self.formatNumber(self.resolution.sigma_1)
547	sigma_phi = self.formatNumber(self.resolution.sigma_2)
548	sigma_lamd = self.formatNumber(self.resolution.sigma_lamd)
549	sigma_1d = self.formatNumber(self.resolution.sigma_1d)
550
551	# Set output values
552	self.txtSigma_x.setText(str(sigma_r))
553	self.txtSigma_y.setText(str(sigma_phi))
554	self.txtSigma_lamd.setText(str(sigma_lamd))
555	self.txt1DSigma.setText(str(sigma_1d))
556
557	self.cmdCompute.setText('Compute')
558	self.cmdCompute.setEnabled(True)
559
560	self.new2DPlot()
561
562	return
563
564	def map_wrapper(self, func, qx, qy, qx_min, qx_max, qy_min, qy_max):
565	"""
566	Prepare the Mapping for the computation
567	: params qx, qy, qx_min, qx_max, qy_min, qy_max:
568	: return: image (numpy array)
569	"""
570	image = list(map(func, qx, qy,
571	qx_min, qx_max,
572	qy_min, qy_max))[0]
573
574	return image
575
576	def calc_func(self, qx, qy, qx_min, qx_max, qy_min, qy_max):
577	"""
578	Perform the calculation for a given set of Q values.
579	: return: image (numpy array)
580	"""
581	try:
582	qx_value = float(qx)
583	qy_value = float(qy)
584	except :
585	raise ValueError
586
587	# calculate 2D resolution distribution image
588	image = self.resolution.compute_and_plot(qx_value, qy_value,
589	qx_min, qx_max, qy_min,
590	qy_max,
591	self.det_coordinate)
592	return image
593
594	# #################################
595	# Legacy validators
596	# #################################
597	def _string2list(self, input_string):
598	"""
599	Change NNN, NNN to list,ie. [NNN, NNN] where NNN is a number
600	"""
601	new_numbers_list = []
602	# check the number of floats
603	try:
604	strg = float(input_string)
605	new_numbers_list.append(strg)
606	except:
607	string_split = input_string.split(',')
608	if len(string_split) == 1 or len(string_split) == 2:
609	new_numbers_list = [float(item) for item in string_split]
610	else:
611	msg = "The numbers must be one or two (separated by ',')"
612	logging.info(msg)
613	raise RuntimeError(msg)
614
615	return new_numbers_list
616
617	def _string2inputlist(self, input_string):
618	"""
619	Change NNN, NNN,... to list,ie. [NNN, NNN,...] where NNN is a number
620	: return new_list: string like list
621	"""
622	new_list = []
623	string_split = input_string.split(',')
624	try:
625	new_list = [float(t) for t in string_split]
626	except:
627	logging.error(sys.exc_info()[1])
628	return new_list
629
630	def _str2longlist(self, input_string):
631	"""
632	Change NNN, NNN,... to list, NNN - NNN ; NNN to list, or float to list
633	: return new_string: string like list
634	"""
635	try:
636	# is float
637	out = [float(input_string)]
638	return out
639	except:
640	if self.cbWaveColor.currentText() == 'Monochromatic':
641	logging.warning("Wrong format of inputs.")
642	else:
643	try:
644	# has a '-'
645	if input_string.count('-') > 0:
646	value = input_string.split('-')
647	if value[1].count(';') > 0:
648	# has a ';'
649	last_list = value[1].split(';')
650	num = numpy.ceil(float(last_list[1]))
651	max_value = float(last_list[0])
652	self.num_wave = num
653	else:
654	# default num
655	num = self.num_wave
656	max_value = float(value[1])
657	min_value = float(value[0])
658	# make a list
659	bin_size = numpy.fabs(max_value - min_value) / (num - 1)
660	out = [min_value + bin_size * bnum for bnum in
661	range(num)]
662	return out
663	if input_string.count(',') > 0:
664	out = self._string2inputlist(input_string)
665	return out
666	except:
667	logging.error(sys.exc_info()[1])
668
669	def _validate_q_input(self, qx, qy):
670	"""
671	Check if q inputs are valid
672	: params qx: qx as a list
673	: params qy: qy as a list
674	: return: True/False
675	"""
676	# check qualifications
677	if qx.__class__.__name__ != 'list':
678	return None
679	if qy.__class__.__name__ != 'list':
680	return None
681	if len(qx) < 1:
682	return None
683	if len(qy) < 1:
684	return None
685	# allow one input
686	if len(qx) == 1 and len(qy) > 1:
687	qx = [qx[0] for ind in range(len(qy))]
688
689	if len(qy) == 1 and len(qx) > 1:
690	qy = [qy[0] for ind in range(len(qx))]
691	# check length
692	if len(qx) != len(qy):
693	return None
694	if qx is None or qy is None:
695	return None
696	return qx, qy
697
698	def formatNumber(self, value=None):
699	"""
700	Return a float in a standardized, human-readable formatted string
701	"""
702	try:
703	value = float(value)
704	except:
705	output = None
706	return output
707
708	output = "%-7.4g" % value
709	return output.lstrip().rstrip()
710
711	# #################################
712	# Plot
713	# #################################
714
715	def createTemplate2DPlot(self):
716	"""
717	Create a template for 2D data
718	"""
719	self.plotter = Plotter2DWidget(self, quickplot=True)
720	self.plotter.scale = 'linear'
721	self.plotter.cmap = None
722	layout = QtWidgets.QHBoxLayout()
723	layout.setContentsMargins(0, 0, 0, 0)
724	self.graphicsView.setLayout(layout)
725	layout.addWidget(self.plotter)
726
727	def new2DPlot(self):
728	"""
729	Create a new 2D data instance based on computing results
730	"""
731	qx_min, qx_max, qy_min, qy_max = self.resolution.get_detector_qrange()
732
733	dx_size = (qx_max - qx_min) / (1000 - 1)
734	dy_size = (qy_max - qy_min) / (1000 - 1)
735	x_val = numpy.arange(qx_min, qx_max, dx_size)
736	y_val = numpy.arange(qy_max, qy_min, -dy_size)
737
738	if len(self.plotter.ax.patches):
739	self.plotter.ax.patches[0].remove()
740
741	self.drawLines()
742
743	self.plotter.data = Data2D(image=self.image,
744	qx_data=x_val,
745	qy_data=y_val,
746	xmin=qx_min, xmax=qx_max,
747	ymin=qy_min, ymax=qy_max)
748
749	self.plotter.plot()
750	self.plotter.show()
751	self.plotter.update()
752
753	def drawLines(self):
754	"""
755	Draw lines in image if applicable
756	"""
757	wave_list, _ = self.resolution.get_wave_list()
758	if len(wave_list) > 1 and wave_list[-1] == max(wave_list):
759	color = 'g'
760	# draw a green rectangle(limit for the longest wavelength
761	# to be involved) for tof inputs
762	# Get the params from resolution
763	# plotting range for largest wavelength
764	qx_min = self.resolution.qx_min
765	qx_max = self.resolution.qx_max
766	qy_min = self.resolution.qy_min
767	qy_max = self.resolution.qy_max
768	# detector range
769	detector_qx_min = self.resolution.detector_qx_min
770	detector_qx_max = self.resolution.detector_qx_max
771	detector_qy_min = self.resolution.detector_qy_min
772	detector_qy_max = self.resolution.detector_qy_max
773
774	rect = patches.Rectangle((detector_qx_min + 0.0002,
775	detector_qy_min + 0.0002),
776	detector_qx_max - detector_qx_min,
777	detector_qy_max - detector_qy_min,
778	linewidth=2,
779	edgecolor=color, facecolor='none')
780	self.plotter.ax.add_patch(rect)
781	else:
782	qx_min, qx_max, qy_min, qy_max = self.resolution.get_detector_qrange()
783	# detector range
784	detector_qx_min = self.resolution.qxmin_limit
785	detector_qx_max = self.resolution.qxmax_limit
786	detector_qy_min = self.resolution.qymin_limit
787	detector_qy_max = self.resolution.qymax_limit
788
789	xmin = min(self.qx)
790	xmax = max(self.qx)
791	ymin = min(self.qy)
792	ymax = max(self.qy)
793
794	if xmin < detector_qx_min or xmax > detector_qx_max or \
795	ymin < detector_qy_min or ymax > detector_qy_max:
796	# message
797	msg = 'At least one q value located out side of\n'
798	msg += " the detector range (%s < qx < %s, %s < qy < %s),\n" % \
799	(self.formatNumber(detector_qx_min),
800	self.formatNumber(detector_qx_max),
801	self.formatNumber(detector_qy_min),
802	self.formatNumber(detector_qy_max))
803	msg += " is ignored in computation.\n"
804
805	logging.warning(msg)
806
807	# Draw zero axis lines.
808	if qy_min < 0 <= qy_max:
809	self.plotter.ax.axhline(linewidth=1)
810
811	if qx_min < 0 <= qx_max:
812	self.plotter.ax.axvline(linewidth=1)

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SasView

source: sasview/src/sas/qtgui/Calculators/ResolutionCalculatorPanel.py @ c7ebb37

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