pagestate.py @ 35ec279

ESS_GUIESS_GUI_DocsESS_GUI_batch_fittingESS_GUI_bumps_abstractionESS_GUI_iss1116ESS_GUI_iss879ESS_GUI_iss959ESS_GUI_openclESS_GUI_orderingESS_GUI_sync_sascalccostrafo411magnetic_scattrelease-4.1.1release-4.1.2release-4.2.2release_4.0.1ticket-1009ticket-1094-headlessticket-1242-2d-resolutionticket-1243ticket-1249ticket885unittest-saveload

Last change on this file since 35ec279 was 79492222, checked in by krzywon, 10 years ago
Changed the file and folder names to remove all SANS references.
Property mode set to `100644`
File size: 73.4 KB

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1	"""
2	Class that holds a fit page state
3	"""
4	################################################################################
5	#This software was developed by the University of Tennessee as part of the
6	#Distributed Data Analysis of Neutron Scattering Experiments (DANSE)
7	#project funded by the US National Science Foundation.
8	#
9	#See the license text in license.txt
10	#
11	#copyright 2009, University of Tennessee
12	################################################################################
13	import time
14	import os
15	import sys
16	import copy
17	import logging
18	import numpy
19	import string
20
21	import xml.dom.minidom
22	from xml.dom.minidom import parseString
23	from lxml import etree
24
25	import sas.dataloader
26	from sas.dataloader.readers.cansas_reader import Reader as CansasReader
27	from sas.dataloader.readers.cansas_reader import get_content, write_node
28	from sas.dataloader.data_info import Data2D
29	from sas.dataloader.data_info import Collimation
30	from sas.dataloader.data_info import Detector
31	from sas.dataloader.data_info import Process
32	from sas.dataloader.data_info import Aperture
33	#Information to read/write state as xml
34	FITTING_NODE_NAME = 'fitting_plug_in'
35	CANSAS_NS = "cansas1d/1.0"
36
37	list_of_data_attributes = [["is_data", "is_data", "bool"],
38	["group_id", "data_group_id", "string"],
39	["data_name", "data_name", "string"],
40	["data_id", "data_id", "string"],
41	["name", "name", "string"],
42	["data_name", "data_name", "string"]]
43	list_of_state_attributes = [["engine_type", "engine_type", "string"],
44	["qmin", "qmin", "float"],
45	["qmax", "qmax", "float"],
46	["npts", "npts", "float"],
47	#["shape_rbutton", "shape_rbutton", "bool"],
48	#["shape_indep_rbutton", "shape_indep_rbutton", "bool"],
49	#["plugin_rbutton", "plugin_rbutton", "bool"],
50	#["struct_rbutton", "struct_rbutton", "bool"],
51	["categorycombobox", "categorycombobox", "string"],
52	["formfactorcombobox", "formfactorcombobox", "string"],
53	["structurecombobox", "structurecombobox", "string"],
54	["multi_factor","multi_factor","float"],
55	["magnetic_on","magnetic_on", "bool"],
56	["enable_smearer","enable_smearer","bool"],
57	["disable_smearer","disable_smearer","bool"],
58	["pinhole_smearer","pinhole_smearer","bool"],
59	["slit_smearer","slit_smearer","bool"],
60	["enable_disp","enable_disp","bool"],
61	["disable_disp","disable_disp","bool"],
62	["dI_noweight","dI_noweight","bool"],
63	["dI_didata","dI_didata","bool"],
64	["dI_sqrdata","dI_sqrdata","bool"],
65	["dI_idata","dI_idata","bool"],
66	["enable2D","enable2D","bool"],
67	["cb1","cb1","bool"],
68	["tcChi","tcChi","float"],
69	["smearer", "smearer", "float"],
70	["smear_type","smear_type", "string"],
71	["dq_l", "dq_l", "string"],
72	["dq_r","dq_r", "string"],
73	["dx_max", "dx_max", "float"],
74	["dx_min","dx_min", "float"],
75	["dxl", "dxl", "float"],
76	["dxw","dxw", "float"]]
77
78	list_of_model_attributes = [["values", "values"],
79	["weights", "weights"]]
80
81	list_of_obj_dic = [["disp_obj_dict", "_disp_obj_dict", "string"]]
82
83	list_of_state_parameters = [["parameters", "parameters"],
84	["str_parameters", "str_parameters"],
85	["orientation_parameters", "orientation_params"],
86	["dispersity_parameters", "orientation_params_disp"],
87	["fixed_param", "fixed_param"],
88	["fittable_param", "fittable_param"]]
89	list_of_data_2d_attr = [["xmin", "xmin", "float"],
90	["xmax", "xmax", "float"],
91	["ymin", "ymin", "float"],
92	["ymax", "ymax", "float"],
93	["_xaxis", "_xaxis", "string"],
94	["_xunit", "_xunit", "string"],
95	["_yaxis", "_yaxis", "string"],
96	["_yunit", "_yunit", "string"],
97	["_zaxis", "_zaxis", "string"],
98	["_zunit", "_zunit", "string"]]
99	list_of_data2d_values = [["qx_data", "qx_data", "float"],
100	["qy_data", "qy_data", "float"],
101	["dqx_data", "dqx_data", "float"],
102	["dqy_data", "dqy_data", "float"],
103	["data", "data", "float"],
104	["q_data", "q_data", "float"],
105	["err_data", "err_data", "float"],
106	["mask", "mask", "bool"]]
107
108
109	def parse_entry_helper(node, item):
110	"""
111	Create a numpy list from value extrated from the node
112
113	:param node: node from each the value is stored
114	:param item: list name of three strings.the two first are name of data
115	attribute and the third one is the type of the value of that
116	attribute. type can be string, float, bool, etc.
117
118	: return: numpy array
119	"""
120	if node is not None:
121	if item[2] == "string":
122	return str(node.get(item[0]).strip())
123	elif item[2] == "bool":
124	try:
125	return node.get(item[0]).strip() == "True"
126
127	except:
128	return None
129	else:
130	try:
131	return float(node.get(item[0]))
132	except:
133	return None
134
135
136	class PageState(object):
137	"""
138	Contains information to reconstruct a page of the fitpanel.
139	"""
140	def __init__(self, parent=None, model=None, data=None):
141	"""
142	Initialize the current state
143
144	:param model: a selected model within a page
145	:param data:
146
147	"""
148	self.file = None
149	#Time of state creation
150	self.timestamp = time.time()
151	## Data member to store the dispersion object created
152	self._disp_obj_dict = {}
153	#------------------------
154	#Data used for fitting
155	self.data = data
156	# model data
157	self.theory_data = None
158	#Is 2D
159	self.is_2D = False
160	self.images = None
161
162	#save additional information on data that dataloader.reader does not read
163	self.is_data = None
164	self.data_name = ""
165
166	if self.data is not None:
167	self.data_name = self.data.name
168	self.data_id = None
169	if self.data is not None and hasattr(self.data, "id"):
170	self.data_id = self.data.id
171	self.data_group_id = None
172	if self.data is not None and hasattr(self.data, "group_id"):
173	self.data_group_id = self.data.group_id
174
175	## reset True change the state of exsiting button
176	self.reset = False
177
178	#engine type
179	self.engine_type = None
180	# flag to allow data2D plot
181	self.enable2D = False
182	# model on which the fit would be performed
183	self.model = model
184	self.m_name = None
185	#list of process done to model
186	self.process = []
187	#fit page manager
188	self.manager = None
189	#Store the parent of this panel parent
190	# For this application fitpanel is the parent
191	self.parent = parent
192	# Event_owner is the owner of model event
193	self.event_owner = None
194	##page name
195	self.page_name = ""
196	# Contains link between model, all its parameters, and panel organization
197	self.parameters = []
198	# String parameter list that can not be fitted
199	self.str_parameters = []
200	# Contains list of parameters that cannot be fitted and reference to
201	#panel objects
202	self.fixed_param = []
203	# Contains list of parameters with dispersity and reference to
204	#panel objects
205	self.fittable_param = []
206	## orientation parameters
207	self.orientation_params = []
208	## orientation parameters for gaussian dispersity
209	self.orientation_params_disp = []
210	## smearer info
211	self.smearer = None
212	self.smear_type = None
213	self.dq_l = None
214	self.dq_r = None
215	self.dx_max = None
216	self.dx_min = None
217	self.dxl = None
218	self.dxw = None
219	#list of dispersion parameters
220	self.disp_list = []
221	if self.model is not None:
222	self.disp_list = self.model.getDispParamList()
223
224	self.disp_cb_dict = {}
225	self.values = {}
226	self.weights = {}
227
228	#contains link between a model and selected parameters to fit
229	self.param_toFit = []
230	##dictionary of model type and model class
231	self.model_list_box = None
232	## save the state of the context menu
233	self.saved_states = {}
234	## save selection of combobox
235	self.formfactorcombobox = None
236	self.categorycombobox = None
237	self.structurecombobox = None
238
239	## radio box to select type of model
240	#self.shape_rbutton = False
241	#self.shape_indep_rbutton = False
242	#self.struct_rbutton = False
243	#self.plugin_rbutton = False
244	## the indice of the current selection
245	self.disp_box = 0
246	## Qrange
247	## Q range
248	self.qmin = 0.001
249	self.qmax = 0.1
250	#reset data range
251	self.qmax_x = None
252	self.qmin_x = None
253
254	self.npts = None
255	self.name = ""
256	self.multi_factor = None
257	self.magnetic_on = False
258	## enable smearering state
259	self.enable_smearer = False
260	self.disable_smearer = True
261	self.pinhole_smearer = False
262	self.slit_smearer = False
263	# weighting options
264	self.dI_noweight = False
265	self.dI_didata = True
266	self.dI_sqrdata = False
267	self.dI_idata = False
268	## disperity selection
269	self.enable_disp = False
270	self.disable_disp = True
271
272	## state of selected all check button
273	self.cb1 = False
274	## store value of chisqr
275	self.tcChi = None
276
277	def clone(self):
278	"""
279	Create a new copy of the current object
280	"""
281	model = None
282	if self.model is not None:
283	model = self.model.clone()
284	model.name = self.model.name
285	obj = PageState(self.parent, model=model)
286	obj.file = copy.deepcopy(self.file)
287	obj.data = copy.deepcopy(self.data)
288	if self.data is not None:
289	self.data_name = self.data.name
290	obj.data_name = self.data_name
291	obj.is_data = self.is_data
292	obj.model_list_box = copy.deepcopy(self.model_list_box)
293	obj.engine_type = copy.deepcopy(self.engine_type)
294
295	obj.categorycombobox = self.categorycombobox
296	obj.formfactorcombobox = self.formfactorcombobox
297	obj.structurecombobox = self.structurecombobox
298
299	#obj.shape_rbutton = self.shape_rbutton
300	#obj.shape_indep_rbutton = self.shape_indep_rbutton
301	#obj.struct_rbutton = self.struct_rbutton
302	#obj.plugin_rbutton = self.plugin_rbutton
303
304	obj.manager = self.manager
305	obj.event_owner = self.event_owner
306	obj.disp_list = copy.deepcopy(self.disp_list)
307
308	obj.enable2D = copy.deepcopy(self.enable2D)
309	obj.parameters = copy.deepcopy(self.parameters)
310	obj.str_parameters = copy.deepcopy(self.str_parameters)
311	obj.fixed_param = copy.deepcopy(self.fixed_param)
312	obj.fittable_param = copy.deepcopy(self.fittable_param)
313	obj.orientation_params = copy.deepcopy(self.orientation_params)
314	obj.orientation_params_disp = copy.deepcopy(self.orientation_params_disp)
315	obj.enable_disp = copy.deepcopy(self.enable_disp)
316	obj.disable_disp = copy.deepcopy(self.disable_disp)
317	obj.tcChi = self.tcChi
318
319	if len(self._disp_obj_dict) > 0:
320	for k, v in self._disp_obj_dict.iteritems():
321	obj._disp_obj_dict[k] = v
322	if len(self.disp_cb_dict) > 0:
323	for k, v in self.disp_cb_dict.iteritems():
324	obj.disp_cb_dict[k] = v
325	if len(self.values) > 0:
326	for k, v in self.values.iteritems():
327	obj.values[k] = v
328	if len(self.weights) > 0:
329	for k, v in self.weights.iteritems():
330	obj.weights[k] = v
331	obj.enable_smearer = copy.deepcopy(self.enable_smearer)
332	obj.disable_smearer = copy.deepcopy(self.disable_smearer)
333	obj.pinhole_smearer = copy.deepcopy(self.pinhole_smearer)
334	obj.slit_smearer = copy.deepcopy(self.slit_smearer)
335	obj.smear_type = copy.deepcopy(self.smear_type)
336	obj.dI_noweight = copy.deepcopy(self.dI_noweight)
337	obj.dI_didata = copy.deepcopy(self.dI_didata)
338	obj.dI_sqrdata = copy.deepcopy(self.dI_sqrdata)
339	obj.dI_idata = copy.deepcopy(self.dI_idata)
340	obj.dq_l = copy.deepcopy(self.dq_l)
341	obj.dq_r = copy.deepcopy(self.dq_r)
342	obj.dx_max = copy.deepcopy(self.dx_max)
343	obj.dx_min = copy.deepcopy(self.dx_min)
344	obj.dxl = copy.deepcopy(self.dxl)
345	obj.dxw = copy.deepcopy(self.dxw)
346	obj.disp_box = copy.deepcopy(self.disp_box)
347	obj.qmin = copy.deepcopy(self.qmin)
348	obj.qmax = copy.deepcopy(self.qmax)
349	obj.multi_factor = self.multi_factor
350	obj.magnetic_on = self.magnetic_on
351	obj.npts = copy.deepcopy(self.npts)
352	obj.cb1 = copy.deepcopy(self.cb1)
353	obj.smearer = copy.deepcopy(self.smearer)
354
355	for name, state in self.saved_states.iteritems():
356	copy_name = copy.deepcopy(name)
357	copy_state = state.clone()
358	obj.saved_states[copy_name] = copy_state
359	return obj
360
361	def _repr_helper(self, list, rep):
362	"""
363	Helper method to print a state
364	"""
365	for item in list:
366	rep += "parameter name: %s \n" % str(item[1])
367	rep += "value: %s\n" % str(item[2])
368	rep += "selected: %s\n" % str(item[0])
369	rep += "error displayed : %s \n" % str(item[4][0])
370	rep += "error value:%s \n" % str(item[4][1])
371	rep += "minimum displayed : %s \n" % str(item[5][0])
372	rep += "minimum value : %s \n" % str(item[5][1])
373	rep += "maximum displayed : %s \n" % str(item[6][0])
374	rep += "maximum value : %s \n" % str(item[6][1])
375	rep += "parameter unit: %s\n\n" % str(item[7])
376	return rep
377
378	def __repr__(self):
379	"""
380	output string for printing
381	"""
382	rep = "\nState name: %s\n" % self.file
383	t = time.localtime(self.timestamp)
384	time_str = time.strftime("%b %d %Y %H;%M;%S ", t)
385
386	rep += "State created: %s\n" % time_str
387	rep += "State form factor combobox selection: %s\n" % self.formfactorcombobox
388	rep += "State structure factor combobox selection: %s\n" % self.structurecombobox
389	rep += "is data : %s\n" % self.is_data
390	rep += "data's name : %s\n" % self.data_name
391	rep += "data's id : %s\n" % self.data_id
392	if self.model != None:
393	m_name = self.model.__class__.__name__
394	if m_name == 'Model':
395	m_name = self.m_name
396	rep += "model name : %s\n" % m_name
397	else:
398	rep += "model name : None\n"
399	#rep += "model type (form factor) selected: %s\n" % self.shape_rbutton
400	rep += "multi_factor : %s\n" % str(self.multi_factor)
401	rep += "magnetic_on : %s\n"% str(self.magnetic_on)
402	rep += "model type (Category) selected: %s\n" % self.categorycombobox
403	#rep += "model type (shape independent) selected: %s\n" % self.shape_indep_rbutton
404	#rep += "model type (structure factor) selected: %s\n" % self.struct_rbutton
405	#rep += "model type (plug-in ) selected: %s\n" % self.plugin_rbutton
406	rep += "data : %s\n" % str(self.data)
407	rep += "Plotting Range: min: %s, max: %s, steps: %s\n" % (str(self.qmin),
408	str(self.qmax), str(self.npts))
409	rep += "Dispersion selection : %s\n" % str(self.disp_box)
410	rep += "Smearing enable : %s\n" % str(self.enable_smearer)
411	rep += "Smearing disable : %s\n" % str(self.disable_smearer)
412	rep += "Pinhole smearer enable : %s\n" % str(self.pinhole_smearer)
413	rep += "Slit smearer enable : %s\n" % str(self.slit_smearer)
414	rep += "Dispersity enable : %s\n" % str(self.enable_disp)
415	rep += "Dispersity disable : %s\n" % str(self.disable_disp)
416	rep += "Slit smearer enable: %s\n" % str(self.slit_smearer)
417
418	rep += "dI_noweight : %s\n" % str(self.dI_noweight)
419	rep += "dI_didata : %s\n" % str(self.dI_didata)
420	rep += "dI_sqrdata : %s\n" % str(self.dI_sqrdata)
421	rep += "dI_idata : %s\n" % str(self.dI_idata)
422
423	rep += "2D enable : %s\n" % str(self.enable2D)
424	rep += "All parameters checkbox selected: %s\n" % (self.cb1)
425	rep += "Value of Chisqr : %s\n" % str(self.tcChi)
426	rep += "Smear object : %s\n" % str(self.smearer)
427	rep += "Smear type : %s\n" % (self.smear_type)
428	rep += "dq_l : %s\n" % self.dq_l
429	rep += "dq_r : %s\n" % self.dq_r
430	rep += "dx_max : %s\n" % str(self.dx_max)
431	rep += "dx_min : %s\n" % str(self.dx_min)
432	rep += "dxl : %s\n" % str(self.dxl)
433	rep += "dxw : %s\n" % str(self.dxw)
434	rep += "model : %s\n\n" % str(self.model)
435	temp_parameters = []
436	temp_fittable_param = []
437	if self.data.__class__.__name__ == "Data2D":
438	self.is_2D = True
439	else:
440	self.is_2D = False
441	if self.data is not None:
442	if not self.is_2D:
443	for item in self.parameters:
444	if not item in self.orientation_params:
445	temp_parameters.append(item)
446	for item in self.fittable_param:
447	if not item in self.orientation_params_disp:
448	temp_fittable_param.append(item)
449	else:
450	temp_parameters = self.parameters
451	temp_fittable_param = self.fittable_param
452
453	rep += "number parameters(self.parameters): %s\n" % len(temp_parameters)
454	rep = self._repr_helper(list=temp_parameters, rep=rep)
455	rep += "number str_parameters(self.str_parameters): %s\n" % len(self.str_parameters)
456	rep = self._repr_helper(list=self.str_parameters, rep=rep)
457	rep += "number fittable_param(self.fittable_param): %s\n" % len(temp_fittable_param)
458	rep = self._repr_helper(list=temp_fittable_param, rep=rep)
459	"""
460	if is_2D:
461	rep += "number orientation parameters"
462	rep += "(self.orientation_params): %s\n"%len(self.orientation_params)
463	rep = self._repr_helper( list=self.orientation_params, rep=rep)
464	rep += "number dispersity parameters"
465	rep += "(self.orientation_params_disp): %s\n"%len(self.orientation_params_disp)
466	rep = self._repr_helper( list=self.orientation_params_disp, rep=rep)
467	"""
468	return rep
469
470	def set_report_string(self):
471	"""
472	Get the values (strings) from __str__ for report
473	"""
474	# Dictionary of teh report strings
475	repo_time = ""
476	model_name = ""
477	title = ""
478	title_name = ""
479	file_name = ""
480	param_string = ""
481	paramval_string = ""
482	chi2_string = ""
483	multi_factor_string = ""
484	q_range = ""
485	strings = self.__repr__()
486	lines = strings.split('\n')
487
488	# get all string values from __str__()
489	for line in lines:
490	value = ""
491	content = line.split(":")
492	name = content[0]
493	try:
494	value = content[1]
495	except:
496	pass
497	if name.count("State created"):
498	repo_time = "" + value
499	if name.count("parameter name"):
500	val_name = value.split(".")
501	if len(val_name) > 1:
502	if val_name[1].count("width"):
503	param_string += value + ','
504	else:
505	continue
506	else:
507	param_string += value + ','
508	if name == "value":
509	param_string += value + ','
510	if name == "error value":
511	param_string += value + ','
512	if name == "parameter unit":
513	param_string += value + ':'
514	if name == "Value of Chisqr ":
515	chi2 = ("Chi2/Npts = " + value)
516	chi2_string = CENTRE % chi2
517	if name == "multi_factor ":
518	muti_factor = ("muti_factor = " + value)
519	muti_factor_string = CENTRE % muti_factor
520	if name == "magentic_on ":
521	magentic_on = ("magentic_on = " + value)
522	if string(value) == 'True':
523	magentic_on_string = CENTRE % magentic_on
524	if name == "Title":
525	if len(value.strip()) == 0:
526	continue
527	title = value + " [" + repo_time + "]"
528	title_name = HEADER % title
529	if name == "data ":
530	try:
531	file = ("File name:" + content[2])
532	file_name = CENTRE % file
533	if len(title) == 0:
534	title = content[2] + " [" + repo_time + "]"
535	title_name = HEADER % title
536	except:
537	pass
538	if name == "model name ":
539	try:
540	modelname = "Model name:" + content[1]
541	except:
542	modelname = "Model name:" + " NAN"
543	model_name = CENTRE % modelname
544
545	if name == "Plotting Range":
546	try:
547	q_range = content[1] + " = " + content[2] \
548	+ " = " + content[3].split(",")[0]
549	q_name = ("Q Range: " + q_range)
550	q_range = CENTRE % q_name
551	except:
552	pass
553	paramval = ""
554	for lines in param_string.split(":"):
555	line = lines.split(",")
556	if len(lines) > 0:
557	param = line[0]
558	param += " = " + line[1]
559	if len(line[2].split()) > 0 and not line[2].count("None"):
560	param += " +- " + line[2]
561	if len(line[3].split()) > 0 and not line[3].count("None"):
562	param += " " + line[3]
563	if not paramval.count(param):
564	paramval += param + "\n"
565	paramval_string += CENTRE % param + "\n"
566
567	text_string = "\n\n\n" + title + "\n\n" + file + \
568	"\n" + q_name + \
569	"\n" + chi2 + \
570	"\n\n" + paramval
571
572	title_name = self._check_html_format(title_name)
573	file_name = self._check_html_format(file_name)
574	title = self._check_html_format(title)
575
576	html_string = title_name + "\n" + file_name + \
577	"\n" + model_name + \
578	"\n" + q_range + \
579	"\n" + chi2_string + \
580	"\n" + ELINE + \
581	"\n" + paramval_string + \
582	"\n" + ELINE + \
583	"\n" + FEET_1 % title + \
584	"\n" + FEET_2
585
586	return html_string, text_string, title
587
588	def _check_html_format(self, name):
589	"""
590	Check string '%' for html format
591	"""
592	if name.count('%'):
593	name = name.replace('%', '&#37')
594
595	return name
596
597	def report(self, figs=None, canvases=None):
598	"""
599	Invoke report dialog panel
600
601	: param figs: list of pylab figures [list]
602	"""
603	from sas.perspectives.fitting.report_dialog import ReportDialog
604	# get the strings for report
605	html_str, text_str, title = self.set_report_string()
606	# Allow 2 figures to append
607	if len(figs) == 1:
608	add_str = FEET_3
609	elif len(figs) == 2:
610	add_str = ELINE
611	add_str += FEET_2 % ("%s")
612	add_str += ELINE
613	add_str += FEET_3
614	elif len(figs) > 2:
615	add_str = ELINE
616	add_str += FEET_2 % ("%s")
617	add_str += ELINE
618	add_str += FEET_2 % ("%s")
619	add_str += ELINE
620	add_str += FEET_3
621	else:
622	add_str = ""
623
624	# final report html strings
625	report_str = html_str % ("%s") + add_str
626
627	# make plot image
628	images = self.set_plot_state(figs, canvases)
629	report_list = [report_str, text_str, images]
630	dialog = ReportDialog(report_list, None, -1, "")
631	dialog.ShowModal()
632
633	def _toXML_helper(self, thelist, element, newdoc):
634	"""
635	Helper method to create xml file for saving state
636	"""
637	for item in thelist:
638	sub_element = newdoc.createElement('parameter')
639	sub_element.setAttribute('name', str(item[1]))
640	sub_element.setAttribute('value', str(item[2]))
641	sub_element.setAttribute('selected_to_fit', str(item[0]))
642	sub_element.setAttribute('error_displayed', str(item[4][0]))
643	sub_element.setAttribute('error_value', str(item[4][1]))
644	sub_element.setAttribute('minimum_displayed', str(item[5][0]))
645	sub_element.setAttribute('minimum_value', str(item[5][1]))
646	sub_element.setAttribute('maximum_displayed', str(item[6][0]))
647	sub_element.setAttribute('maximum_value', str(item[6][1]))
648	sub_element.setAttribute('unit', str(item[7]))
649	element.appendChild(sub_element)
650
651	def toXML(self, file="fitting_state.fitv", doc=None, entry_node=None):
652	"""
653	Writes the state of the InversionControl panel to file, as XML.
654
655	Compatible with standalone writing, or appending to an
656	already existing XML document. In that case, the XML document
657	is required. An optional entry node in the XML document may also be given.
658
659	:param file: file to write to
660	:param doc: XML document object [optional]
661	:param entry_node: XML node within the XML document at which we will append the data [optional]
662
663	"""
664	from xml.dom.minidom import getDOMImplementation
665
666	# Check whether we have to write a standalone XML file
667	if doc is None:
668	impl = getDOMImplementation()
669	doc_type = impl.createDocumentType(FITTING_NODE_NAME, "1.0", "1.0")
670	newdoc = impl.createDocument(None, FITTING_NODE_NAME, doc_type)
671	top_element = newdoc.documentElement
672	else:
673	# We are appending to an existing document
674	newdoc = doc
675	try:
676	top_element = newdoc.createElement(FITTING_NODE_NAME)
677	except:
678	string = etree.tostring(doc, pretty_print=True)
679	newdoc = parseString(string)
680	top_element = newdoc.createElement(FITTING_NODE_NAME)
681	if entry_node is None:
682	newdoc.documentElement.appendChild(top_element)
683	else:
684	try:
685	entry_node.appendChild(top_element)
686	except:
687	node_name = entry_node.tag
688	node_list = newdoc.getElementsByTagName(node_name)
689	entry_node = node_list.item(0)
690	entry_node.appendChild(top_element)
691
692	attr = newdoc.createAttribute("version")
693	attr.nodeValue = '1.0'
694	top_element.setAttributeNode(attr)
695
696	# File name
697	element = newdoc.createElement("filename")
698	if self.file is not None:
699	element.appendChild(newdoc.createTextNode(str(self.file)))
700	else:
701	element.appendChild(newdoc.createTextNode(str(file)))
702	top_element.appendChild(element)
703
704	element = newdoc.createElement("timestamp")
705	element.appendChild(newdoc.createTextNode(time.ctime(self.timestamp)))
706	attr = newdoc.createAttribute("epoch")
707	attr.nodeValue = str(self.timestamp)
708	element.setAttributeNode(attr)
709	top_element.appendChild(element)
710	# Inputs
711	inputs = newdoc.createElement("Attributes")
712	top_element.appendChild(inputs)
713
714	if self.data is not None and hasattr(self.data, "group_id"):
715	self.data_group_id = self.data.group_id
716	if self.data is not None and hasattr(self.data, "is_data"):
717	self.is_data = self.data.is_data
718	if self.data is not None:
719	self.data_name = self.data.name
720	if self.data is not None and hasattr(self.data, "id"):
721	self.data_id = self.data.id
722
723	for item in list_of_data_attributes:
724	element = newdoc.createElement(item[0])
725	exec "element.setAttribute(item[0], str(self.%s))" % (item[1])
726	inputs.appendChild(element)
727
728	for item in list_of_state_attributes:
729	element = newdoc.createElement(item[0])
730	exec "element.setAttribute(item[0], str(self.%s))" % (item[1])
731	inputs.appendChild(element)
732
733	# For self.values ={ disp_param_name: [vals,...],...}
734	# and for self.weights ={ disp_param_name: [weights,...],...}
735	list = {}
736	for item in list_of_model_attributes:
737	element = newdoc.createElement(item[0])
738	exec "list = self.%s" % item[1]
739	for key, value in list.iteritems():
740	sub_element = newdoc.createElement(key)
741	sub_element.setAttribute('name', str(key))
742	for val in value:
743	com = "sub_element.appendChild"
744	com += "(newdoc.createTextNode(str(%s)))"
745	exec com % val
746
747	element.appendChild(sub_element)
748	inputs.appendChild(element)
749
750	# Create doc for the dictionary of self._disp_obj_dic
751	for item in list_of_obj_dic:
752	element = newdoc.createElement(item[0])
753	exec "list = self.%s" % item[1]
754	for key, val in list.iteritems():
755	value = repr(val)
756	sub_element = newdoc.createElement(key)
757	sub_element.setAttribute('name', str(key))
758	sub_element.setAttribute('value', str(value))
759	element.appendChild(sub_element)
760	inputs.appendChild(element)
761
762	for item in list_of_state_parameters:
763	element = newdoc.createElement(item[0])
764	com = "self._toXML_helper(thelist=self.%s,"
765	com += " element=element, newdoc=newdoc)"
766	exec com % item[1]
767	inputs.appendChild(element)
768
769	# Save the file
770	if doc is None:
771	fd = open(file, 'w')
772	fd.write(newdoc.toprettyxml())
773	fd.close()
774	return None
775	else:
776	return newdoc
777
778	def _fromXML_helper(self, node, list):
779	"""
780	Helper function to write state to xml
781	"""
782	for item in node:
783	try:
784	name = item.get('name')
785	except:
786	name = None
787	try:
788	value = item.get('value')
789	except:
790	value = None
791	try:
792	selected_to_fit = (item.get('selected_to_fit') == "True")
793	except:
794	selected_to_fit = None
795	try:
796	error_displayed = (item.get('error_displayed') == "True")
797	except:
798	error_displayed = None
799	try:
800	error_value = item.get('error_value')
801	except:
802	error_value = None
803	try:
804	minimum_displayed = (item.get('minimum_displayed') == "True")
805	except:
806	minimum_displayed = None
807	try:
808	minimum_value = item.get('minimum_value')
809	except:
810	minimum_value = None
811	try:
812	maximum_displayed = (item.get('maximum_displayed') == "True")
813	except:
814	maximum_displayed = None
815	try:
816	maximum_value = item.get('maximum_value')
817	except:
818	maximum_value = None
819	try:
820	unit = item.get('unit')
821	except:
822	unit = None
823	list.append([selected_to_fit, name, value, "+/-",
824	[error_displayed, error_value],
825	[minimum_displayed, minimum_value],
826	[maximum_displayed, maximum_value], unit])
827
828	def fromXML(self, file=None, node=None):
829	"""
830	Load fitting state from a file
831
832	:param file: .fitv file
833	:param node: node of a XML document to read from
834
835	"""
836	if file is not None:
837	msg = "PageState no longer supports non-CanSAS"
838	msg += " format for fitting files"
839	raise RuntimeError, msg
840
841	if node.get('version')and node.get('version') == '1.0':
842
843	# Get file name
844	entry = get_content('ns:filename', node)
845	if entry is not None:
846	self.file = entry.text.strip()
847
848	# Get time stamp
849	entry = get_content('ns:timestamp', node)
850	if entry is not None and entry.get('epoch'):
851	try:
852	self.timestamp = float(entry.get('epoch'))
853	except:
854	msg = "PageState.fromXML: Could not"
855	msg += " read timestamp\n %s" % sys.exc_value
856	logging.error(msg)
857
858	# Parse fitting attributes
859	entry = get_content('ns:Attributes', node)
860	for item in list_of_data_attributes:
861	node = get_content('ns:%s' % item[0], entry)
862	try:
863	exec "self.%s = parse_entry_helper(node, item)" % item[0]
864
865	except:
866	raise
867
868	if entry is not None:
869
870	for item in list_of_state_attributes:
871	node = get_content('ns:%s' % item[0], entry)
872	try:
873	exec "self.%s = parse_entry_helper(node, item)" % \
874	str(item[0])
875	except:
876	raise
877
878	for item in list_of_state_parameters:
879	node = get_content("ns:%s" % item[0], entry)
880	exec "self._fromXML_helper(node=node, list=self.%s)" % \
881	item[1]
882
883	# Recover _disp_obj_dict from xml file
884	self._disp_obj_dict = {}
885	disp_model = None
886	for item in list_of_obj_dic:
887	# Get node
888	node = get_content("ns:%s" % item[0], entry)
889	for attr in node:
890	name = attr.get('name')
891	val = attr.get('value')
892	value = val.split(" instance")[0]
893	disp_name = value.split("<")[1]
894	try:
895	# Try to recover disp_model object from strings
896	com = "from sas.models.dispersion_models "
897	com += "import %s as disp"
898	com_name = disp_name.split(".")[3]
899	exec com % com_name
900	disp_model = disp()
901	exec "self.%s['%s'] = com_name" % (item[1], name)
902	except:
903	pass
904
905	# get self.values and self.weights dic. if exists
906	for item in list_of_model_attributes:
907	node = get_content("ns:%s" % item[0], entry)
908	dic = {}
909	list = []
910	for par in node:
911	name = par.get('name')
912	values = par.text.split('\n')
913	# Get lines only with numbers
914	for line in values:
915	try:
916	val = float(line)
917	list.append(val)
918	except:
919	# pass if line is empty (it happens)
920	pass
921	dic[name] = numpy.array(list)
922	exec "self.%s = dic" % item[1]
923
924	def set_plot_state(self, figs, canvases):
925	"""
926	Build image state that wx.html understand
927	by plotting, putting it into wx.FileSystem image object
928
929	"""
930	images = []
931	# some imports
932	import wx
933
934	# Reset memory
935	self.imgRAM = None
936	wx.MemoryFSHandler()
937
938	# For no figures in the list, prepare empty plot
939	if figs == None or len(figs) == 0:
940	figs = [None]
941
942	# Loop over the list of figures
943	# use wx.MemoryFSHandler
944	self.imgRAM = wx.MemoryFSHandler()
945	for fig in figs:
946	if figs != None:
947	ind = figs.index(fig)
948	canvas = canvases[ind]
949
950	#store the image in wx.FileSystem Object
951	wx.FileSystem.AddHandler(wx.MemoryFSHandler())
952
953	# index of the fig
954	ind = figs.index(fig)
955
956	#AddFile, image can be retrieved with 'memory:filename'
957	self.imgRAM.AddFile('img_fit%s.png' % ind,
958	canvas.bitmap, wx.BITMAP_TYPE_PNG)
959
960	#append figs
961	images.append(fig)
962
963	return images
964
965
966	class Reader(CansasReader):
967	"""
968	Class to load a .fitv fitting file
969	"""
970	## File type
971	type_name = "Fitting"
972
973	## Wildcards
974	type = ["Fitting files (.fitv)\|.fitv"
975	"SANSView file (.svs)\|.svs"]
976	## List of allowed extensions
977	ext = ['.fitv', '.FITV', '.svs', 'SVS']
978
979	def __init__(self, call_back=None, cansas=True):
980	CansasReader.__init__(self)
981	"""
982	Initialize the call-back method to be called
983	after we load a file
984
985	:param call_back: call-back method
986	:param cansas: True = files will be written/read in CanSAS format
987	False = write CanSAS format
988
989	"""
990	## Call back method to be executed after a file is read
991	self.call_back = call_back
992	## CanSAS format flag
993	self.cansas = cansas
994	self.state = None
995
996	def get_state(self):
997	return self.state
998
999	def read(self, path):
1000	"""
1001	Load a new P(r) inversion state from file
1002
1003	:param path: file path
1004
1005	"""
1006	if self.cansas == True:
1007	return self._read_cansas(path)
1008
1009	def _data2d_to_xml_doc(self, datainfo):
1010	"""
1011	Create an XML document to contain the content of a Data2D
1012
1013	:param datainfo: Data2D object
1014
1015	"""
1016	if not issubclass(datainfo.__class__, Data2D):
1017	raise RuntimeError, "The cansas writer expects a Data2D instance"
1018
1019	doc = xml.dom.minidom.Document()
1020	main_node = doc.createElement("SASroot")
1021	main_node.setAttribute("version", self.version)
1022	main_node.setAttribute("xmlns", "cansas1d/%s" % self.version)
1023	main_node.setAttribute("xmlns:xsi", "http://www.w3.org/2001/XMLSchema-instance")
1024	main_node.setAttribute("xsi:schemaLocation", "cansas1d/%s http://svn.smallangles.net/svn/canSAS/1dwg/trunk/cansas1d.xsd" % self.version)
1025
1026	doc.appendChild(main_node)
1027
1028	entry_node = doc.createElement("SASentry")
1029	main_node.appendChild(entry_node)
1030
1031	write_node(doc, entry_node, "Title", datainfo.title)
1032	if datainfo is not None:
1033	write_node(doc, entry_node, "data_class", datainfo.__class__.__name__)
1034	for item in datainfo.run:
1035	runname = {}
1036	if datainfo.run_name.has_key(item) and len(str(datainfo.run_name[item]))>1:
1037	runname = {'name': datainfo.run_name[item] }
1038	write_node(doc, entry_node, "Run", item, runname)
1039	# Data info
1040	new_node = doc.createElement("SASdata")
1041	entry_node.appendChild(new_node)
1042	for item in list_of_data_2d_attr:
1043	element = doc.createElement(item[0])
1044	exec "element.setAttribute(item[0], str(datainfo.%s))" % (item[1])
1045	new_node.appendChild(element)
1046
1047	for item in list_of_data2d_values:
1048	root_node = doc.createElement(item[0])
1049	new_node.appendChild(root_node)
1050	temp_list = None
1051	exec "temp_list = datainfo.%s" % item[1]
1052
1053	if temp_list is None or len(temp_list)== 0:
1054	element = doc.createElement(item[0])
1055	exec "element.appendChild(doc.createTextNode(str(%s)))" % temp_list
1056	root_node.appendChild(element)
1057	else:
1058	for value in temp_list:
1059	element = doc.createElement(item[0])
1060	exec "element.setAttribute(item[0], str(%s))" % value
1061	root_node.appendChild(element)
1062
1063	# Sample info
1064	sample = doc.createElement("SASsample")
1065	if datainfo.sample.name is not None:
1066	sample.setAttribute("name", str(datainfo.sample.name))
1067	entry_node.appendChild(sample)
1068	write_node(doc, sample, "ID", str(datainfo.sample.ID))
1069	write_node(doc, sample, "thickness", datainfo.sample.thickness,
1070	{"unit": datainfo.sample.thickness_unit})
1071	write_node(doc, sample, "transmission", datainfo.sample.transmission)
1072	write_node(doc, sample, "temperature", datainfo.sample.temperature,
1073	{"unit": datainfo.sample.temperature_unit})
1074
1075	for item in datainfo.sample.details:
1076	write_node(doc, sample, "details", item)
1077
1078	pos = doc.createElement("position")
1079	written = write_node(doc, pos, "x", datainfo.sample.position.x,
1080	{"unit": datainfo.sample.position_unit})
1081	written = written \| write_node(doc, pos, "y",
1082	datainfo.sample.position.y,
1083	{"unit": datainfo.sample.position_unit})
1084	written = written \| write_node(doc, pos, "z",
1085	datainfo.sample.position.z,
1086	{"unit": datainfo.sample.position_unit})
1087	if written == True:
1088	sample.appendChild(pos)
1089
1090	ori = doc.createElement("orientation")
1091	written = write_node(doc, ori, "roll", datainfo.sample.orientation.x,
1092	{"unit": datainfo.sample.orientation_unit})
1093	written = written \| write_node(doc, ori, "pitch",
1094	datainfo.sample.orientation.y,
1095	{"unit": datainfo.sample.orientation_unit})
1096	written = written \| write_node(doc, ori, "yaw",
1097	datainfo.sample.orientation.z,
1098	{"unit": datainfo.sample.orientation_unit})
1099	if written == True:
1100	sample.appendChild(ori)
1101
1102	# Instrument info
1103	instr = doc.createElement("SASinstrument")
1104	entry_node.appendChild(instr)
1105
1106	write_node(doc, instr, "name", datainfo.instrument)
1107
1108	# Source
1109	source = doc.createElement("SASsource")
1110	if datainfo.source.name is not None:
1111	source.setAttribute("name", str(datainfo.source.name))
1112	instr.appendChild(source)
1113
1114	write_node(doc, source, "radiation", datainfo.source.radiation)
1115	write_node(doc, source, "beam_shape", datainfo.source.beam_shape)
1116	size = doc.createElement("beam_size")
1117	if datainfo.source.beam_size_name is not None:
1118	size.setAttribute("name", str(datainfo.source.beam_size_name))
1119	written = write_node(doc, size, "x", datainfo.source.beam_size.x,
1120	{"unit": datainfo.source.beam_size_unit})
1121	written = written \| write_node(doc, size, "y",
1122	datainfo.source.beam_size.y,
1123	{"unit": datainfo.source.beam_size_unit})
1124	written = written \| write_node(doc, size, "z",
1125	datainfo.source.beam_size.z,
1126	{"unit": datainfo.source.beam_size_unit})
1127	if written == True:
1128	source.appendChild(size)
1129
1130	write_node(doc, source, "wavelength", datainfo.source.wavelength,
1131	{"unit": datainfo.source.wavelength_unit})
1132	write_node(doc, source, "wavelength_min",
1133	datainfo.source.wavelength_min,
1134	{"unit": datainfo.source.wavelength_min_unit})
1135	write_node(doc, source, "wavelength_max",
1136	datainfo.source.wavelength_max,
1137	{"unit": datainfo.source.wavelength_max_unit})
1138	write_node(doc, source, "wavelength_spread",
1139	datainfo.source.wavelength_spread,
1140	{"unit": datainfo.source.wavelength_spread_unit})
1141
1142	# Collimation
1143	for item in datainfo.collimation:
1144	coll = doc.createElement("SAScollimation")
1145	if item.name is not None:
1146	coll.setAttribute("name", str(item.name))
1147	instr.appendChild(coll)
1148
1149	write_node(doc, coll, "length", item.length,
1150	{"unit": item.length_unit})
1151
1152	for apert in item.aperture:
1153	ap = doc.createElement("aperture")
1154	if apert.name is not None:
1155	ap.setAttribute("name", str(apert.name))
1156	if apert.type is not None:
1157	ap.setAttribute("type", str(apert.type))
1158	coll.appendChild(ap)
1159
1160	write_node(doc, ap, "distance", apert.distance,
1161	{"unit": apert.distance_unit})
1162
1163	size = doc.createElement("size")
1164	if apert.size_name is not None:
1165	size.setAttribute("name", str(apert.size_name))
1166	written = write_node(doc, size, "x", apert.size.x,
1167	{"unit": apert.size_unit})
1168	written = written \| write_node(doc, size, "y", apert.size.y,
1169	{"unit": apert.size_unit})
1170	written = written \| write_node(doc, size, "z", apert.size.z,
1171	{"unit": apert.size_unit})
1172	if written == True:
1173	ap.appendChild(size)
1174
1175	# Detectors
1176	for item in datainfo.detector:
1177	det = doc.createElement("SASdetector")
1178	written = write_node(doc, det, "name", item.name)
1179	written = written \| write_node(doc, det, "SDD", item.distance,
1180	{"unit": item.distance_unit})
1181	written = written \| write_node(doc, det, "slit_length",
1182	item.slit_length,
1183	{"unit": item.slit_length_unit})
1184	if written == True:
1185	instr.appendChild(det)
1186
1187	off = doc.createElement("offset")
1188	written = write_node(doc, off, "x", item.offset.x,
1189	{"unit": item.offset_unit})
1190	written = written \| write_node(doc, off, "y", item.offset.y,
1191	{"unit": item.offset_unit})
1192	written = written \| write_node(doc, off, "z", item.offset.z,
1193	{"unit": item.offset_unit})
1194	if written == True:
1195	det.appendChild(off)
1196
1197	center = doc.createElement("beam_center")
1198	written = write_node(doc, center, "x", item.beam_center.x,
1199	{"unit": item.beam_center_unit})
1200	written = written \| write_node(doc, center, "y",
1201	item.beam_center.y,
1202	{"unit": item.beam_center_unit})
1203	written = written \| write_node(doc, center, "z",
1204	item.beam_center.z,
1205	{"unit": item.beam_center_unit})
1206	if written == True:
1207	det.appendChild(center)
1208
1209	pix = doc.createElement("pixel_size")
1210	written = write_node(doc, pix, "x", item.pixel_size.x,
1211	{"unit": item.pixel_size_unit})
1212	written = written \| write_node(doc, pix, "y", item.pixel_size.y,
1213	{"unit": item.pixel_size_unit})
1214	written = written \| write_node(doc, pix, "z", item.pixel_size.z,
1215	{"unit": item.pixel_size_unit})
1216	if written == True:
1217	det.appendChild(pix)
1218
1219	ori = doc.createElement("orientation")
1220	written = write_node(doc, ori, "roll", item.orientation.x,
1221	{"unit": item.orientation_unit})
1222	written = written \| write_node(doc, ori, "pitch",
1223	item.orientation.y,
1224	{"unit": item.orientation_unit})
1225	written = written \| write_node(doc, ori, "yaw", item.orientation.z,
1226	{"unit": item.orientation_unit})
1227	if written == True:
1228	det.appendChild(ori)
1229
1230	# Processes info
1231	for item in datainfo.process:
1232	node = doc.createElement("SASprocess")
1233	entry_node.appendChild(node)
1234
1235	write_node(doc, node, "name", item.name)
1236	write_node(doc, node, "date", item.date)
1237	write_node(doc, node, "description", item.description)
1238	for term in item.term:
1239	value = term['value']
1240	del term['value']
1241	write_node(doc, node, "term", value, term)
1242	for note in item.notes:
1243	write_node(doc, node, "SASprocessnote", note)
1244	# Return the document, and the SASentry node associated with
1245	# the data we just wrote
1246	return doc, entry_node
1247
1248	def _parse_state(self, entry):
1249	"""
1250	Read a fit result from an XML node
1251
1252	:param entry: XML node to read from
1253
1254	:return: PageState object
1255	"""
1256	# Create an empty state
1257	state = None
1258	# Locate the P(r) node
1259	try:
1260	nodes = entry.xpath('ns:%s' % FITTING_NODE_NAME,
1261	namespaces={'ns': CANSAS_NS})
1262	if nodes != []:
1263	# Create an empty state
1264	state = PageState()
1265	state.fromXML(node=nodes[0])
1266
1267	except:
1268	logging.info("XML document does not contain fitting information.\n %s" % sys.exc_value)
1269
1270	return state
1271
1272	def _parse_save_state_entry(self, dom):
1273	"""
1274	Parse a SASentry
1275
1276	:param node: SASentry node
1277
1278	:return: Data1D/Data2D object
1279
1280	"""
1281	node = dom.xpath('ns:data_class', namespaces={'ns': CANSAS_NS})
1282	if not node or node[0].text.lstrip().rstrip() != "Data2D":
1283	return_value, _ = self._parse_entry(dom)
1284	numpy.trim_zeros(return_value.x)
1285	numpy.trim_zeros(return_value.y)
1286	numpy.trim_zeros(return_value.dy)
1287	size_dx = return_value.dx.size
1288	size_dxl = return_value.dxl.size
1289	size_dxw = return_value.dxw.size
1290	if size_dxl == 0 and size_dxw == 0:
1291	return_value.dxl = None
1292	return_value.dxw = None
1293	numpy.trim_zeros(return_value.dx)
1294	elif size_dx == 0:
1295	return_value.dx = None
1296	size_dx = size_dxl
1297	numpy.trim_zeros(return_value.dxl)
1298	numpy.trim_zeros(return_value.dxw)
1299
1300	return return_value, _
1301
1302	#Parse 2D
1303	data_info = Data2D()
1304
1305	# Look up title
1306	self._store_content('ns:Title', dom, 'title', data_info)
1307
1308	# Look up run number
1309	nodes = dom.xpath('ns:Run', namespaces={'ns': CANSAS_NS})
1310	for item in nodes:
1311	if item.text is not None:
1312	value = item.text.strip()
1313	if len(value) > 0:
1314	data_info.run.append(value)
1315	if item.get('name') is not None:
1316	data_info.run_name[value] = item.get('name')
1317
1318	# Look up instrument name
1319	self._store_content('ns:SASinstrument/ns:name', dom,
1320	'instrument', data_info)
1321
1322	# Notes
1323	note_list = dom.xpath('ns:SASnote', namespaces={'ns': CANSAS_NS})
1324	for note in note_list:
1325	try:
1326	if note.text is not None:
1327	note_value = note.text.strip()
1328	if len(note_value) > 0:
1329	data_info.notes.append(note_value)
1330	except:
1331	err_mess = "cansas_reader.read: error processing entry notes\n %s" % sys.exc_value
1332	self.errors.append(err_mess)
1333	logging.error(err_mess)
1334
1335	# Sample info ###################
1336	entry = get_content('ns:SASsample', dom)
1337	if entry is not None:
1338	data_info.sample.name = entry.get('name')
1339
1340	self._store_content('ns:SASsample/ns:ID',
1341	dom, 'ID', data_info.sample)
1342	self._store_float('ns:SASsample/ns:thickness',
1343	dom, 'thickness', data_info.sample)
1344	self._store_float('ns:SASsample/ns:transmission',
1345	dom, 'transmission', data_info.sample)
1346	self._store_float('ns:SASsample/ns:temperature',
1347	dom, 'temperature', data_info.sample)
1348
1349	nodes = dom.xpath('ns:SASsample/ns:details',
1350	namespaces={'ns': CANSAS_NS})
1351	for item in nodes:
1352	try:
1353	if item.text is not None:
1354	detail_value = item.text.strip()
1355	if len(detail_value) > 0:
1356	data_info.sample.details.append(detail_value)
1357	except:
1358	err_mess = "cansas_reader.read: error processing sample details\n %s" % sys.exc_value
1359	self.errors.append(err_mess)
1360	logging.error(err_mess)
1361
1362	# Position (as a vector)
1363	self._store_float('ns:SASsample/ns:position/ns:x',
1364	dom, 'position.x', data_info.sample)
1365	self._store_float('ns:SASsample/ns:position/ns:y',
1366	dom, 'position.y', data_info.sample)
1367	self._store_float('ns:SASsample/ns:position/ns:z',
1368	dom, 'position.z', data_info.sample)
1369
1370	# Orientation (as a vector)
1371	self._store_float('ns:SASsample/ns:orientation/ns:roll',
1372	dom, 'orientation.x', data_info.sample)
1373	self._store_float('ns:SASsample/ns:orientation/ns:pitch',
1374	dom, 'orientation.y', data_info.sample)
1375	self._store_float('ns:SASsample/ns:orientation/ns:yaw',
1376	dom, 'orientation.z', data_info.sample)
1377
1378	# Source info ###################
1379	entry = get_content('ns:SASinstrument/ns:SASsource', dom)
1380	if entry is not None:
1381	data_info.source.name = entry.get('name')
1382
1383	self._store_content('ns:SASinstrument/ns:SASsource/ns:radiation',
1384	dom, 'radiation', data_info.source)
1385	self._store_content('ns:SASinstrument/ns:SASsource/ns:beam_shape',
1386	dom, 'beam_shape', data_info.source)
1387	self._store_float('ns:SASinstrument/ns:SASsource/ns:wavelength',
1388	dom, 'wavelength', data_info.source)
1389	self._store_float('ns:SASinstrument/ns:SASsource/ns:wavelength_min',
1390	dom, 'wavelength_min', data_info.source)
1391	self._store_float('ns:SASinstrument/ns:SASsource/ns:wavelength_max',
1392	dom, 'wavelength_max', data_info.source)
1393	self._store_float('ns:SASinstrument/ns:SASsource/ns:wavelength_spread',
1394	dom, 'wavelength_spread', data_info.source)
1395
1396	# Beam size (as a vector)
1397	entry = get_content('ns:SASinstrument/ns:SASsource/ns:beam_size', dom)
1398	if entry is not None:
1399	data_info.source.beam_size_name = entry.get('name')
1400
1401	self._store_float('ns:SASinstrument/ns:SASsource/ns:beam_size/ns:x',
1402	dom, 'beam_size.x', data_info.source)
1403	self._store_float('ns:SASinstrument/ns:SASsource/ns:beam_size/ns:y',
1404	dom, 'beam_size.y', data_info.source)
1405	self._store_float('ns:SASinstrument/ns:SASsource/ns:beam_size/ns:z',
1406	dom, 'beam_size.z', data_info.source)
1407
1408	# Collimation info ###################
1409	nodes = dom.xpath('ns:SASinstrument/ns:SAScollimation',
1410	namespaces={'ns': CANSAS_NS})
1411	for item in nodes:
1412	collim = Collimation()
1413	if item.get('name') is not None:
1414	collim.name = item.get('name')
1415	self._store_float('ns:length', item, 'length', collim)
1416
1417	# Look for apertures
1418	apert_list = item.xpath('ns:aperture',
1419	namespaces={'ns': CANSAS_NS})
1420	for apert in apert_list:
1421	aperture = Aperture()
1422
1423	# Get the name and type of the aperture
1424	aperture.name = apert.get('name')
1425	aperture.type = apert.get('type')
1426
1427	self._store_float('ns:distance', apert, 'distance', aperture)
1428
1429	entry = get_content('ns:size', apert)
1430	if entry is not None:
1431	aperture.size_name = entry.get('name')
1432
1433	self._store_float('ns:size/ns:x', apert, 'size.x', aperture)
1434	self._store_float('ns:size/ns:y', apert, 'size.y', aperture)
1435	self._store_float('ns:size/ns:z', apert, 'size.z', aperture)
1436
1437	collim.aperture.append(aperture)
1438
1439	data_info.collimation.append(collim)
1440
1441	# Detector info ######################
1442	nodes = dom.xpath('ns:SASinstrument/ns:SASdetector',
1443	namespaces={'ns': CANSAS_NS})
1444	for item in nodes:
1445
1446	detector = Detector()
1447
1448	self._store_content('ns:name', item, 'name', detector)
1449	self._store_float('ns:SDD', item, 'distance', detector)
1450
1451	# Detector offset (as a vector)
1452	self._store_float('ns:offset/ns:x', item, 'offset.x', detector)
1453	self._store_float('ns:offset/ns:y', item, 'offset.y', detector)
1454	self._store_float('ns:offset/ns:z', item, 'offset.z', detector)
1455
1456	# Detector orientation (as a vector)
1457	self._store_float('ns:orientation/ns:roll', item,
1458	'orientation.x', detector)
1459	self._store_float('ns:orientation/ns:pitch', item,
1460	'orientation.y', detector)
1461	self._store_float('ns:orientation/ns:yaw', item,
1462	'orientation.z', detector)
1463
1464	# Beam center (as a vector)
1465	self._store_float('ns:beam_center/ns:x', item,
1466	'beam_center.x', detector)
1467	self._store_float('ns:beam_center/ns:y', item,
1468	'beam_center.y', detector)
1469	self._store_float('ns:beam_center/ns:z', item,
1470	'beam_center.z', detector)
1471
1472	# Pixel size (as a vector)
1473	self._store_float('ns:pixel_size/ns:x', item,
1474	'pixel_size.x', detector)
1475	self._store_float('ns:pixel_size/ns:y', item,
1476	'pixel_size.y', detector)
1477	self._store_float('ns:pixel_size/ns:z', item,
1478	'pixel_size.z', detector)
1479
1480	self._store_float('ns:slit_length', item, 'slit_length', detector)
1481
1482	data_info.detector.append(detector)
1483
1484	# Processes info ######################
1485	nodes = dom.xpath('ns:SASprocess', namespaces={'ns': CANSAS_NS})
1486	for item in nodes:
1487	process = Process()
1488	self._store_content('ns:name', item, 'name', process)
1489	self._store_content('ns:date', item, 'date', process)
1490	self._store_content('ns:description', item, 'description', process)
1491
1492	term_list = item.xpath('ns:term', namespaces={'ns': CANSAS_NS})
1493	for term in term_list:
1494	try:
1495	term_attr = {}
1496	for attr in term.keys():
1497	term_attr[attr] = term.get(attr).strip()
1498	if term.text is not None:
1499	term_attr['value'] = term.text.strip()
1500	process.term.append(term_attr)
1501	except:
1502	err_mess = "cansas_reader.read: error processing process term\n %s" % sys.exc_value
1503	self.errors.append(err_mess)
1504	logging.error(err_mess)
1505
1506	note_list = item.xpath('ns:SASprocessnote',
1507	namespaces={'ns': CANSAS_NS})
1508	for note in note_list:
1509	if note.text is not None:
1510	process.notes.append(note.text.strip())
1511
1512	data_info.process.append(process)
1513
1514	# Data info ######################
1515	nodes = dom.xpath('ns:SASdata', namespaces={'ns': CANSAS_NS})
1516	if len(nodes) > 1:
1517	raise RuntimeError, "CanSAS reader is not compatible with multiple SASdata entries"
1518
1519	for entry in nodes:
1520	for item in list_of_data_2d_attr:
1521	#get node
1522	node = get_content('ns:%s' % item[0], entry)
1523	exec "data_info.%s = parse_entry_helper(node, item)" % item[1]
1524
1525	for item in list_of_data2d_values:
1526	field = get_content('ns:%s' % item[0], entry)
1527	list = []
1528	if field is not None:
1529	list = [parse_entry_helper(node, item) for node in field]
1530	if len(list) < 2:
1531	exec "data_info.%s = None" % item[0]
1532	else:
1533	exec "data_info.%s = numpy.array(list)" % item[0]
1534
1535	return data_info
1536
1537	def _read_cansas(self, path):
1538	"""
1539	Load data and P(r) information from a CanSAS XML file.
1540
1541	:param path: file path
1542
1543	:return: Data1D object if a single SASentry was found,
1544	or a list of Data1D objects if multiple entries were found,
1545	or None of nothing was found
1546
1547	:raise RuntimeError: when the file can't be opened
1548	:raise ValueError: when the length of the data vectors are inconsistent
1549
1550	"""
1551	output = []
1552	basename = os.path.basename(path)
1553	root, extension = os.path.splitext(basename)
1554	ext = extension.lower()
1555	try:
1556	if os.path.isfile(path):
1557
1558	#TODO: eventually remove the check for .xml once
1559	# the P(r) writer/reader is truly complete.
1560	if ext in self.ext or \
1561	ext == '.xml':
1562
1563	tree = etree.parse(path, parser=etree.ETCompatXMLParser())
1564	# Check the format version number
1565	# Specifying the namespace will take care of the file format version
1566	root = tree.getroot()
1567	entry_list = root.xpath('ns:SASentry',
1568	namespaces={'ns': CANSAS_NS})
1569	for entry in entry_list:
1570	try:
1571	sas_entry, _ = self._parse_save_state_entry(entry)
1572	except:
1573	raise
1574	fitstate = self._parse_state(entry)
1575
1576	#state could be None when .svs file is loaded
1577	#in this case, skip appending to output
1578	if fitstate != None:
1579	sas_entry.meta_data['fitstate'] = fitstate
1580	sas_entry.filename = fitstate.file
1581	output.append(sas_entry)
1582	else:
1583	self.call_back(format=ext)
1584	raise RuntimeError, "%s is not a file" % path
1585
1586	# Return output consistent with the loader's api
1587	if len(output) == 0:
1588	self.call_back(state=None, datainfo=None, format=ext)
1589	return None
1590	else:
1591	for ind in range(len(output)):
1592	# Call back to post the new state
1593	state = output[ind].meta_data['fitstate']
1594	t = time.localtime(state.timestamp)
1595	time_str = time.strftime("%b %d %H:%M", t)
1596	# Check that no time stamp is already appended
1597	max_char = state.file.find("[")
1598	if max_char < 0:
1599	max_char = len(state.file)
1600	original_fname = state.file[0:max_char]
1601	state.file = original_fname + ' [' + time_str + ']'
1602
1603	if state is not None and state.is_data is not None:
1604	exec 'output[%d].is_data = state.is_data' % ind
1605
1606	output[ind].filename = state.file
1607	state.data = output[ind]
1608	state.data.name = output[ind].filename # state.data_name
1609	state.data.id = state.data_id
1610	if state.is_data is not None:
1611	state.data.is_data = state.is_data
1612	if output[ind].run_name is not None\
1613	and len(output[ind].run_name) != 0:
1614	name = output[ind].run_name
1615	else:
1616	name = original_fname
1617	state.data.group_id = name
1618	#store state in fitting
1619	self.call_back(state=state,
1620	datainfo=output[ind], format=ext)
1621	self.state = state
1622	return output
1623
1624	except:
1625	self.call_back(format=ext)
1626	#self.state= state
1627	raise
1628
1629	def write(self, filename, datainfo=None, fitstate=None):
1630	"""
1631	Write the content of a Data1D as a CanSAS XML file only for standalone
1632
1633	:param filename: name of the file to write
1634	:param datainfo: Data1D object
1635	:param fitstate: PageState object
1636
1637	"""
1638	# Sanity check
1639	if self.cansas == True:
1640	# Add fitting information to the XML document
1641	doc = self.write_toXML(datainfo, fitstate)
1642	# Write the XML document
1643	else:
1644	doc = fitstate.toXML(file=filename)
1645
1646	# Save the document no matter the type
1647	fd = open(filename, 'w')
1648	fd.write(doc.toprettyxml())
1649	fd.close()
1650
1651	def write_toXML(self, datainfo=None, state=None):
1652	"""
1653	Write toXML, a helper for write(),
1654	could be used by guimanager._on_save()
1655
1656	: return: xml doc
1657	"""
1658
1659	if state.data is None:
1660	data = sas.dataloader.data_info.Data1D(x=[], y=[])
1661	return None
1662	elif not state.data.is_data:
1663	return None
1664	else:
1665	#make sure title and data run is filled up.
1666	if state.data.title == None or state.data.title == '':
1667	state.data.title = state.data.name
1668	if state.data.run_name == None or state.data.run_name == {}:
1669	state.data.run = [str(state.data.name)]
1670	state.data.run_name[0] = state.data.name
1671
1672	if issubclass(state.data.__class__,
1673	sas.dataloader.data_info.Data1D):
1674	data = state.data
1675	doc, sasentry = self._to_xml_doc(data)
1676	else:
1677	data = state.data
1678	doc, sasentry = self._data2d_to_xml_doc(data)
1679
1680	if state is not None:
1681	doc = state.toXML(doc=doc, file=data.filename, entry_node=sasentry)
1682
1683	return doc
1684
1685	# Simple html report templet
1686	HEADER = "<html>\n"
1687	HEADER += "<head>\n"
1688	HEADER += "<meta http-equiv=Content-Type content='text/html; "
1689	HEADER += "charset=windows-1252'> \n"
1690	HEADER += "<meta name=Generator >\n"
1691	HEADER += "</head>\n"
1692	HEADER += "<body lang=EN-US>\n"
1693	HEADER += "<div class=WordSection1>\n"
1694	HEADER += "<p class=MsoNormal><b><span ><center><font size='4' >"
1695	HEADER += "%s</font></center></span></center></b></p>"
1696	HEADER += "<p class=MsoNormal> </p>"
1697	PARA = "<p class=MsoNormal><font size='4' > %s \n"
1698	PARA += "</font></p>"
1699	CENTRE = "<p class=MsoNormal><center><font size='4' > %s \n"
1700	CENTRE += "</font></center></p>"
1701	FEET_1 = \
1702	"""
1703	<p class=MsoNormal> </p>
1704	<br>
1705	<p class=MsoNormal><b><span ><center> <font size='4' > Graph
1706	</font></span></center></b></p>
1707	<p class=MsoNormal> </p>
1708	<center>
1709	<br><font size='4' >Model Computation</font>
1710	<br><font size='4' >Data: "%s"</font><br>
1711	"""
1712	FEET_2 = \
1713	"""
1714	<img src="%s" >
1715	</img>
1716	"""
1717	FEET_3 = \
1718	"""
1719	</center>
1720	</div>
1721	</body>
1722	</html>
1723	"""
1724	ELINE = "<p class=MsoNormal> </p>"
1725
1726	if __name__ == "__main__":
1727	state = PageState(parent=None)
1728	#state.toXML()
1729	"""
1730
1731	file = open("test_state", "w")
1732	pickle.dump(state, file)
1733	print pickle.dumps(state)
1734	state.data_name = "hello---->"
1735	pickle.dump(state, file)
1736	file = open("test_state", "r")
1737	new_state= pickle.load(file)
1738	print "new state", new_state
1739	new_state= pickle.load(file)
1740	print "new state", new_state
1741	#print "state", state
1742	"""
1743	import bsddb
1744	import pickle
1745	db = bsddb.btopen('file_state.db', 'c')
1746	val = (pickle.dumps(state), "hello", "hi")
1747	db['state1'] = pickle.dumps(val)
1748	print pickle.loads(db['state1'])
1749	state.data_name = "hello---->22"
1750	db['state2'] = pickle.dumps(state)
1751	state.data_name = "hello---->2"
1752	db['state3'] = pickle.dumps(state)
1753	del db['state3']
1754	state.data_name = "hello---->3"
1755	db['state4'] = pickle.dumps(state)
1756	new_state = pickle.loads(db['state1'])
1757	#print db.last()
1758	db.set_location('state2')
1759	state.data_name = "hello---->5"
1760	db['aastate5'] = pickle.dumps(state)
1761	db.keys().sort()
1762	print pickle.loads(db['state2'])
1763
1764	db.close()

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SasView

source: sasview/src/sas/perspectives/fitting/pagestate.py @ 35ec279

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