invariant_state.py @ 6015eee

magnetic_scattrelease-4.2.2ticket-1009ticket-1094-headlessticket-1242-2d-resolutionticket-1243ticket-1249unittest-saveload

Last change on this file since 6015eee was 2469df7, checked in by Paul Kienzle <pkienzle@…>, 7 years ago
lint: update 'if x==True/False?' to 'if x/not x:'
Property mode set to `100644`
File size: 30.9 KB

Rev	Line
[51f14603]	1	"""
[78a205a]	2	State class for the invariant UI
[51f14603]	3	"""
	4
[78a205a]	5	# import time
[51f14603]	6	import os
	7	import sys
	8	import logging
	9	import copy
[b699768]	10	import sas.sascalc.dataloader
[78a205a]	11	# from xml.dom.minidom import parse
[51f14603]	12	from lxml import etree
[b699768]	13	from sas.sascalc.dataloader.readers.cansas_reader import Reader as CansasReader
	14	from sas.sascalc.dataloader.readers.cansas_reader import get_content
[d85c194]	15	from sas.sasgui.guiframe.utils import format_number
	16	from sas.sasgui.guiframe.gui_style import GUIFRAME_ID
	17	from sas.sasgui.guiframe.dataFitting import Data1D
[51f14603]	18
[463e7ffc]	19	logger = logging.getLogger(__name__)
[c155a16]	20
[51f14603]	21	INVNODE_NAME = 'invariant'
	22	CANSAS_NS = "cansas1d/1.0"
	23
	24	# default state
[78a205a]	25	DEFAULT_STATE = {'file': 'None',
	26	'compute_num':0,
	27	'state_num':0,
	28	'is_time_machine':False,
	29	'background_tcl':0.0,
	30	'scale_tcl':1.0,
	31	'contrast_tcl':1.0,
	32	'porod_constant_tcl':'',
	33	'npts_low_tcl':10,
	34	'npts_high_tcl':10,
	35	'power_high_tcl':4.0,
	36	'power_low_tcl': 4.0,
	37	'enable_high_cbox':False,
	38	'enable_low_cbox':False,
	39	'guinier': True,
	40	'power_law_high': False,
	41	'power_law_low': False,
	42	'fit_enable_high': False,
	43	'fit_enable_low': False,
	44	'fix_enable_high':True,
	45	'fix_enable_low':True,
	46	'volume_tcl':'',
	47	'volume_err_tcl':'',
	48	'surface_tcl':'',
	49	'surface_err_tcl':''}
	50	# list of states: This list will be filled as panel
[51f14603]	51	# init and the number of states increases
	52	state_list = {}
	53	bookmark_list = {}
[78a205a]	54	# list of input parameters (will be filled up on panel init) used by __str__
[51f14603]	55	input_list = {'background_tcl':0,
[78a205a]	56	'scale_tcl':0,
	57	'contrast_tcl':0,
	58	'porod_constant_tcl':'',
	59	'npts_low_tcl':0,
	60	'npts_high_tcl':0,
	61	'power_high_tcl':0,
	62	'power_low_tcl': 0}
	63	# list of output parameters (order sensitive) used by __str__
	64	output_list = [["qstar_low", "Q* from low Q extrapolation [1/(cm*A)]"],
	65	["qstar_low_err", "dQ* from low Q extrapolation"],
	66	["qstar_low_percent", "Q* percent from low Q extrapolation"],
	67	["qstar", "Q* from data [1/(cm*A)]"],
	68	["qstar_err", "dQ* from data"],
	69	["qstar_percent", "Q* percent from data"],
	70	["qstar_high", "Q* from high Q extrapolation [1/(cm*A)]"],
	71	["qstar_high_err", "dQ* from high Q extrapolation"],
[51f14603]	72	["qstar_high_percent", "Q* percent from low Q extrapolation"],
[78a205a]	73	["qstar_total", "total Q* [1/(cm*A)]"],
	74	["qstar_total_err", "total dQ*"],
	75	["volume", "volume fraction"],
	76	["volume_err", "volume fraction error"],
	77	["surface", "specific surface"],
	78	["surface_err", "specific surface error"]]
	79
[51f14603]	80
	81
	82	class InvariantState(object):
	83	"""
	84	Class to hold the state information of the InversionControl panel.
	85	"""
	86	def __init__(self):
	87	"""
	88	Default values
	89	"""
[78a205a]	90	# Input
	91	self.file = None
[51f14603]	92	self.data = Data1D(x=[], y=[], dx=None, dy=None)
[78a205a]	93	self.theory_lowQ = Data1D(x=[], y=[], dy=None)
[51f14603]	94	self.theory_lowQ.symbol = GUIFRAME_ID.CURVE_SYMBOL_NUM
	95	self.theory_highQ = Data1D(x=[], y=[], dy=None)
	96	self.theory_highQ.symbol = GUIFRAME_ID.CURVE_SYMBOL_NUM
[78a205a]	97	# self.is_time_machine = False
	98	self.saved_state = DEFAULT_STATE
[51f14603]	99	self.state_list = state_list
	100	self.bookmark_list = bookmark_list
	101	self.input_list = input_list
	102	self.output_list = output_list
[78a205a]	103
[51f14603]	104	self.compute_num = 0
	105	self.state_num = 0
	106	self.timestamp = ('00:00:00', '00/00/0000')
	107	self.container = None
[78a205a]	108	# plot image
[51f14603]	109	self.wximbmp = None
	110	# report_html strings
[d85c194]	111	import sas.sasgui.perspectives.invariant as invariant
[51f14603]	112	path = invariant.get_data_path(media='media')
[78a205a]	113	path_report_html = os.path.join(path, "report_template.html")
	114	html_template = open(path_report_html, "r")
[51f14603]	115	self.template_str = html_template.read()
	116	self.report_str = self.template_str
[78a205a]	117	# self.report_str_save = None
[51f14603]	118	html_template.close()
[78a205a]	119
[51f14603]	120	def __str__(self):
	121	"""
	122	Pretty print
[78a205a]	123
[51f14603]	124	: return: string representing the state
	125	"""
	126	# Input string
	127	compute_num = self.saved_state['compute_num']
	128	compute_state = self.state_list[str(compute_num)]
	129	my_time, date = self.timestamp
	130	file_name = self.file
	131
	132	state_num = int(self.saved_state['state_num'])
	133	state = "\n[Invariant computation for %s: " % file_name
	134	state += "performed at %s on %s] \n" % (my_time, date)
	135	state += "State No.: %d \n" % state_num
	136	state += "\n=== Inputs ===\n"
[78a205a]	137
[51f14603]	138	# text ctl general inputs ( excluding extrapolation text ctl)
[78a205a]	139	for key, value in self.input_list.iteritems():
[51f14603]	140	if value == '':
	141	continue
[78a205a]	142	key_split = key.split('_')
	143	max_ind = len(key_split) - 1
	144	if key_split[max_ind] == 'tcl':
[51f14603]	145	name = ""
	146	if key_split[1] == 'low' or key_split[1] == 'high':
	147	continue
	148	for ind in range(0, max_ind):
	149	name += " %s" % key_split[ind]
	150	state += "%s: %s\n" % (name.lstrip(" "), value)
[78a205a]	151
	152	# other input parameters
[51f14603]	153	extra_lo = compute_state['enable_low_cbox']
	154	if compute_state['enable_low_cbox']:
	155	if compute_state['guinier']:
	156	extra_lo = 'Guinier'
	157	else:
	158	extra_lo = 'Power law'
	159	extra_hi = compute_state['enable_high_cbox']
	160	if compute_state['enable_high_cbox']:
	161	extra_hi = 'Power law'
[78a205a]	162	state += "\nExtrapolation: High=%s; Low=%s\n" % (extra_hi, extra_lo)
[51f14603]	163	low_off = False
	164	high_off = False
[78a205a]	165	for key, value in self.input_list.iteritems():
	166	key_split = key.split('_')
	167	max_ind = len(key_split) - 1
	168	if key_split[max_ind] == 'tcl':
	169	name = ""
[51f14603]	170	# check each buttons whether or not ON or OFF
	171	if key_split[1] == 'low' or key_split[1] == 'high':
	172	if not compute_state['enable_low_cbox'] and \
[78a205a]	173	key_split[max_ind - 1] == 'low':
[51f14603]	174	low_off = True
[78a205a]	175	continue
[51f14603]	176	elif not compute_state['enable_high_cbox'] and \
[78a205a]	177	key_split[max_ind - 1] == 'high':
[51f14603]	178	high_off = True
	179	continue
	180	elif extra_lo == 'Guinier' and key_split[0] == 'power' and \
[78a205a]	181	key_split[max_ind - 1] == 'low':
[51f14603]	182	continue
	183	for ind in range(0, max_ind):
	184	name += " %s" % key_split[ind]
	185	name = name.lstrip(" ")
[78a205a]	186	if name == "power low":
[51f14603]	187	if compute_state['fix_enable_low']:
	188	name += ' (Fixed)'
	189	else:
	190	name += ' (Fitted)'
[78a205a]	191	if name == "power high":
[51f14603]	192	if compute_state['fix_enable_high']:
	193	name += ' (Fixed)'
	194	else:
	195	name += ' (Fitted)'
	196	state += "%s: %s\n" % (name, value)
	197	# Outputs
	198	state += "\n=== Outputs ==="
	199	for item in output_list:
[78a205a]	200	item_split = item[0].split('_')
[51f14603]	201	# Exclude the extrapolation that turned off
	202	if len(item_split) > 1:
	203	if low_off and item_split[1] == 'low':
	204	continue
	205	if high_off and item_split[1] == 'high':
	206	continue
	207	max_ind = len(item_split) - 1
	208	value = None
[78a205a]	209	if hasattr(self.container, item[0]):
[51f14603]	210	# Q* outputs
[78a205a]	211	value = getattr(self.container, item[0])
	212	else:
[51f14603]	213	# other outputs than Q*
	214	name = item[0] + "_tcl"
	215	if name in self.saved_state.keys():
[78a205a]	216	value = self.saved_state[name]
	217
	218	# Exclude the outputs w/''
[51f14603]	219	if value == '':
[78a205a]	220	continue
[51f14603]	221	# Error outputs
	222	if item_split[max_ind] == 'err':
	223	state += "+- %s " % format_number(value)
	224	# Percentage outputs
	225	elif item_split[max_ind] == 'percent':
[78a205a]	226	value = float(value) * 100
[51f14603]	227	state += "(%s %s)" % (format_number(value), '%')
	228	# Outputs
	229	else:
[78a205a]	230	state += "\n%s: %s " % (item[1],
	231	format_number(value, high=True))
[51f14603]	232	# Include warning msg
	233	if self.container is not None:
	234	state += "\n\nNote:\n" + self.container.warning_msg
	235	return state
	236
	237	def clone_state(self):
	238	"""
	239	deepcopy the state
	240	"""
	241	return copy.deepcopy(self.saved_state)
	242
	243	def toXML(self, file="inv_state.inv", doc=None, entry_node=None):
	244	"""
	245	Writes the state of the InversionControl panel to file, as XML.
[78a205a]	246
[51f14603]	247	Compatible with standalone writing, or appending to an
	248	already existing XML document. In that case, the XML document
[78a205a]	249	is required. An optional entry node in the XML document
[51f14603]	250	may also be given.
[78a205a]	251
[51f14603]	252	: param file: file to write to
	253	: param doc: XML document object [optional]
[78a205a]	254	: param entry_node: XML node within the document at which we will append the data [optional]
[51f14603]	255	"""
[92a2ecd]	256	# TODO: Get this to work
[51f14603]	257	from xml.dom.minidom import getDOMImplementation
	258	import time
	259	timestamp = time.time()
	260	# Check whether we have to write a standalone XML file
	261	if doc is None:
	262	impl = getDOMImplementation()
[78a205a]	263
	264	doc_type = impl.createDocumentType(INVNODE_NAME, "1.0", "1.0")
	265
[51f14603]	266	newdoc = impl.createDocument(None, INVNODE_NAME, doc_type)
	267	top_element = newdoc.documentElement
	268	else:
	269	# We are appending to an existing document
	270	newdoc = doc
	271	top_element = newdoc.createElement(INVNODE_NAME)
	272	if entry_node is None:
	273	newdoc.documentElement.appendChild(top_element)
	274	else:
	275	entry_node.appendChild(top_element)
[78a205a]	276
[51f14603]	277	attr = newdoc.createAttribute("version")
	278	attr.nodeValue = '1.0'
	279	top_element.setAttributeNode(attr)
[78a205a]	280
[51f14603]	281	# File name
	282	element = newdoc.createElement("filename")
[7432acb]	283	if self.file is not None and self.file != '':
[51f14603]	284	element.appendChild(newdoc.createTextNode(str(self.file)))
	285	else:
	286	element.appendChild(newdoc.createTextNode(str(file)))
	287	top_element.appendChild(element)
[78a205a]	288
[51f14603]	289	element = newdoc.createElement("timestamp")
	290	element.appendChild(newdoc.createTextNode(time.ctime(timestamp)))
	291	attr = newdoc.createAttribute("epoch")
	292	attr.nodeValue = str(timestamp)
	293	element.setAttributeNode(attr)
	294	top_element.appendChild(element)
[78a205a]	295
[51f14603]	296	# Current state
	297	state = newdoc.createElement("state")
	298	top_element.appendChild(state)
[78a205a]	299
	300	for name, value in self.saved_state.iteritems():
[51f14603]	301	element = newdoc.createElement(str(name))
	302	element.appendChild(newdoc.createTextNode(str(value)))
	303	state.appendChild(element)
[78a205a]	304
[51f14603]	305	# State history list
	306	history = newdoc.createElement("history")
	307	top_element.appendChild(history)
[78a205a]	308
[51f14603]	309	for name, value in self.state_list.iteritems():
	310	history_element = newdoc.createElement('state_' + str(name))
[78a205a]	311	for state_name, state_value in value.iteritems():
[51f14603]	312	state_element = newdoc.createElement(str(state_name))
	313	child = newdoc.createTextNode(str(state_value))
	314	state_element.appendChild(child)
	315	history_element.appendChild(state_element)
[78a205a]	316	# history_element.appendChild(state_list_element)
[51f14603]	317	history.appendChild(history_element)
	318
	319	# Bookmarks bookmark_list[self.bookmark_num] = [\
[78a205a]	320	# my_time,date,state,comp_state]
[51f14603]	321	bookmark = newdoc.createElement("bookmark")
	322	top_element.appendChild(bookmark)
[78a205a]	323	item_list = ['time', 'date', 'state', 'comp_state']
[51f14603]	324	for name, value_list in self.bookmark_list.iteritems():
[78a205a]	325	element = newdoc.createElement('mark_' + str(name))
	326	_, date, state, comp_state = value_list
[51f14603]	327	time_element = newdoc.createElement('time')
	328	time_element.appendChild(newdoc.createTextNode(str(value_list[0])))
	329	date_element = newdoc.createElement('date')
	330	date_element.appendChild(newdoc.createTextNode(str(value_list[1])))
	331	state_list_element = newdoc.createElement('state')
	332	comp_state_list_element = newdoc.createElement('comp_state')
	333	for state_name, state_value in value_list[2].iteritems():
	334	state_element = newdoc.createElement(str(state_name))
	335	child = newdoc.createTextNode(str(state_value))
	336	state_element.appendChild(child)
	337	state_list_element.appendChild(state_element)
	338	for comp_name, comp_value in value_list[3].iteritems():
	339	comp_element = newdoc.createElement(str(comp_name))
	340	comp_element.appendChild(newdoc.createTextNode(str(comp_value)))
	341	comp_state_list_element.appendChild(comp_element)
	342	element.appendChild(time_element)
	343	element.appendChild(date_element)
	344	element.appendChild(state_list_element)
	345	element.appendChild(comp_state_list_element)
	346	bookmark.appendChild(element)
	347
	348	# Save the file
	349	if doc is None:
	350	fd = open('test000', 'w')
	351	fd.write(newdoc.toprettyxml())
	352	fd.close()
	353	return None
	354	else:
[92a2ecd]	355	return newdoc
[78a205a]	356
[51f14603]	357	def fromXML(self, file=None, node=None):
	358	"""
	359	Load invariant states from a file
[78a205a]	360
[51f14603]	361	: param file: .inv file
[78a205a]	362	: param node: node of a XML document to read from
[51f14603]	363	"""
	364	if file is not None:
	365	msg = "InvariantSate no longer supports non-CanSAS"
	366	msg += " format for invariant files"
	367	raise RuntimeError, msg
[78a205a]	368
[51f14603]	369	if node.get('version')\
	370	and node.get('version') == '1.0':
	371
	372	# Get file name
	373	entry = get_content('ns:filename', node)
	374	if entry is not None:
	375	file_name = entry.text.strip()
	376
	377	# Get time stamp
	378	entry = get_content('ns:timestamp', node)
	379	if entry is not None and entry.get('epoch'):
	380	try:
	381	timestamp = (entry.get('epoch'))
	382	except:
	383	msg = "InvariantSate.fromXML: Could not read"
	384	msg += " timestamp\n %s" % sys.exc_value
[c155a16]	385	logger.error(msg)
[78a205a]	386
[51f14603]	387	# Parse bookmarks
	388	entry_bookmark = get_content('ns:bookmark', node)
	389
	390	for ind in range(1, len(entry_bookmark) + 1):
	391	temp_state = {}
	392	temp_bookmark = {}
[78a205a]	393	entry = get_content('ns:mark_%s' % ind, entry_bookmark)
	394
[51f14603]	395	if entry is not None:
	396	my_time = get_content('ns:time', entry)
	397	val_time = str(my_time.text.strip())
	398	date = get_content('ns:date', entry)
	399	val_date = str(date.text.strip())
	400	state_entry = get_content('ns:state', entry)
[78a205a]	401	for item in DEFAULT_STATE:
[51f14603]	402	input_field = get_content('ns:%s' % item, state_entry)
	403	val = str(input_field.text.strip())
	404	if input_field is not None:
[78a205a]	405	temp_state[item] = val
[51f14603]	406	comp_entry = get_content('ns:comp_state', entry)
[78a205a]	407
	408	for item in DEFAULT_STATE:
[51f14603]	409	input_field = get_content('ns:%s' % item, comp_entry)
	410	val = str(input_field.text.strip())
	411	if input_field is not None:
[78a205a]	412	temp_bookmark[item] = val
[51f14603]	413	try:
[78a205a]	414	self.bookmark_list[ind] = [val_time, val_date, temp_state, temp_bookmark]
[51f14603]	415	except:
	416	raise "missing components of bookmarks..."
	417	# Parse histories
	418	entry_history = get_content('ns:history', node)
	419
	420	for ind in range(0, len(entry_history)):
	421	temp_state = {}
[78a205a]	422	entry = get_content('ns:state_%s' % ind, entry_history)
[51f14603]	423
	424	if entry is not None:
[78a205a]	425	for item in DEFAULT_STATE:
	426	input_field = get_content('ns:%s' % item, entry)
[db5294e]	427	if input_field.text is not None:
	428	val = str(input_field.text.strip())
	429	else:
	430	val = ''
[51f14603]	431	if input_field is not None:
[78a205a]	432	temp_state[item] = val
[cb93b40]	433	self.state_list[str(ind)] = temp_state
[78a205a]	434
[51f14603]	435	# Parse current state (ie, saved_state)
[78a205a]	436	entry = get_content('ns:state', node)
[51f14603]	437	if entry is not None:
[78a205a]	438	for item in DEFAULT_STATE:
[51f14603]	439	input_field = get_content('ns:%s' % item, entry)
[db5294e]	440	if input_field.text is not None:
	441	val = str(input_field.text.strip())
	442	else:
	443	val = ''
[51f14603]	444	if input_field is not None:
	445	self.set_saved_state(name=item, value=val)
	446	self.file = file_name
[78a205a]	447
[51f14603]	448	def set_report_string(self):
	449	"""
[78a205a]	450	Get the values (strings) from __str__ for report
[51f14603]	451	"""
	452	strings = self.__str__()
[78a205a]	453
[51f14603]	454	# default string values
[78a205a]	455	for num in range(1, 19):
[51f14603]	456	exec "s_%s = 'NA'" % str(num)
	457	lines = strings.split('\n')
	458	# get all string values from __str__()
	459	for line in range(0, len(lines)):
	460	if line == 1:
	461	s_1 = lines[1]
	462	elif line == 2:
	463	s_2 = lines[2]
	464	else:
	465	item = lines[line].split(':')
	466	item[0] = item[0].strip()
	467	if item[0] == "scale":
	468	s_3 = item[1]
	469	elif item[0] == "porod constant":
	470	s_4 = item[1]
	471	elif item[0] == "background":
	472	s_5 = item[1]
	473	elif item[0] == "contrast":
	474	s_6 = item[1]
	475	elif item[0] == "Extrapolation":
	476	extra = item[1].split(";")
	477	bool_0 = extra[0].split("=")
	478	bool_1 = extra[1].split("=")
	479	s_8 = " " + bool_0[0] + "Q region = " + bool_0[1]
	480	s_7 = " " + bool_1[0] + "Q region = " + bool_1[1]
	481	elif item[0] == "npts low":
	482	s_9 = item[1]
	483	elif item[0] == "npts high":
	484	s_10 = item[1]
	485	elif item[0] == "volume fraction":
[78a205a]	486	val = item[1].split("+-")[0].strip()
[51f14603]	487	error = item[1].split("+-")[1].strip()
	488	s_17 = val + " ± " + error
	489	elif item[0] == "specific surface":
	490	val = item[1].split("+-")[0].strip()
	491	error = item[1].split("+-")[1].strip()
	492	s_18 = val + " ± " + error
	493	elif item[0].split("(")[0].strip() == "power low":
[78a205a]	494	s_11 = item[0] + " =" + item[1]
[51f14603]	495	elif item[0].split("(")[0].strip() == "power high":
[78a205a]	496	s_12 = item[0] + " =" + item[1]
[51f14603]	497	elif item[0].split("[")[0].strip() == "Q* from low Q extrapolation":
[78a205a]	498	# looks messy but this way the symbols +_ and % work on html
[51f14603]	499	val = item[1].split("+-")[0].strip()
	500	error = item[1].split("+-")[1].strip()
	501	err = error.split("%")[0].strip()
	502	percent = error.split("%")[1].strip()
	503	s_13 = val + " ± " + err + "&#37" + percent
	504	elif item[0].split("[")[0].strip() == "Q* from data":
	505	val = item[1].split("+-")[0].strip()
	506	error = item[1].split("+-")[1].strip()
	507	err = error.split("%")[0].strip()
	508	percent = error.split("%")[1].strip()
	509	s_14 = val + " ± " + err + "&#37" + percent
	510	elif item[0].split("[")[0].strip() == "Q* from high Q extrapolation":
	511	val = item[1].split("+-")[0].strip()
	512	error = item[1].split("+-")[1].strip()
	513	err = error.split("%")[0].strip()
	514	percent = error.split("%")[1].strip()
	515	s_15 = val + " ± " + err + "&#37" + percent
	516	elif item[0].split("[")[0].strip() == "total Q*":
	517	val = item[1].split("+-")[0].strip()
	518	error = item[1].split("+-")[1].strip()
	519	s_16 = val + " ± " + error
	520	else:
	521	continue
	522
	523	s_1 = self._check_html_format(s_1)
	524	file_name = self._check_html_format(self.file)
	525
	526	# make plot image
[78a205a]	527	self.set_plot_state(extra_high=bool_0[1], extra_low=bool_1[1])
[51f14603]	528	# get ready for report with setting all the html strings
	529	self.report_str = str(self.template_str) % (s_1, s_2,
[78a205a]	530	s_3, s_4, s_5, s_6, s_7, s_8,
	531	s_9, s_10, s_11, s_12, s_13, s_14, s_15,
	532	s_16, s_17, s_18, file_name, "%s")
[51f14603]	533
	534	def _check_html_format(self, name):
	535	"""
	536	Check string '%' for html format
	537	"""
	538	if name.count('%'):
	539	name = name.replace('%', '&#37')
[78a205a]	540
[51f14603]	541	return name
[78a205a]	542
[51f14603]	543	def set_saved_state(self, name, value):
	544	"""
[78a205a]	545	Set the state list
	546
[51f14603]	547	: param name: name of the state component
	548	: param value: value of the state component
	549	"""
[78a205a]	550	rb_list = [['power_law_low', 'guinier'],
	551	['fit_enable_low', 'fix_enable_low'],
	552	['fit_enable_high', 'fix_enable_high']]
[51f14603]	553
[78a205a]	554	self.name = value
	555	self.saved_state[name] = value
	556	# set the count part of radio button clicked
	557	# False for the saved_state
	558	for title, content in rb_list:
	559	if name == title:
	560	name = content
	561	value = False
	562	elif name == content:
	563	name = title
	564	value = False
	565	self.saved_state[name] = value
	566	self.state_num = self.saved_state['state_num']
[51f14603]	567
	568	def set_plot_state(self, extra_high=False, extra_low=False):
	569	"""
	570	Build image state that wx.html understand
	571	by plotting, putting it into wx.FileSystem image object
[78a205a]	572
[51f14603]	573	: extrap_high,extra_low: low/high extrapolations
	574	are possible extra-plots
	575	"""
	576	# some imports
	577	import wx
	578	import matplotlib.pyplot as plt
	579	from matplotlib.backends.backend_agg import FigureCanvasAgg
	580
[78a205a]	581	# we use simple plot, not plotpanel
	582	# make matlab figure
[51f14603]	583	fig = plt.figure()
	584	fig.set_facecolor('w')
	585	graph = fig.add_subplot(111)
	586
[78a205a]	587	# data plot
[51f14603]	588	graph.errorbar(self.data.x, self.data.y, yerr=self.data.dy, fmt='o')
[78a205a]	589	# low Q extrapolation fit plot
[51f14603]	590	if not extra_low == 'False':
[78a205a]	591	graph.plot(self.theory_lowQ.x, self.theory_lowQ.y)
	592	# high Q extrapolation fit plot
[51f14603]	593	if not extra_high == 'False':
[78a205a]	594	graph.plot(self.theory_highQ.x, self.theory_highQ.y)
[51f14603]	595	graph.set_xscale("log", nonposx='clip')
	596	graph.set_yscale("log", nonposy='clip')
[78a205a]	597	graph.set_xlabel('$\\rm{Q}(\\AA^{-1})$', fontsize=12)
	598	graph.set_ylabel('$\\rm{Intensity}(cm^{-1})$', fontsize=12)
[51f14603]	599	canvas = FigureCanvasAgg(fig)
[78a205a]	600	# actually make image
[51f14603]	601	canvas.draw()
[78a205a]	602
	603	# make python.Image object
	604	# size
[51f14603]	605	w, h = canvas.get_width_height()
[78a205a]	606	# convert to wx.Image
	607	wximg = wx.EmptyImage(w, h)
	608	# wxim.SetData(img.convert('RGB').tostring() )
	609	wximg.SetData(canvas.tostring_rgb())
	610	# get the dynamic image for the htmlwindow
[51f14603]	611	wximgbmp = wx.BitmapFromImage(wximg)
[78a205a]	612	# store the image in wx.FileSystem Object
[51f14603]	613	wx.FileSystem.AddHandler(wx.MemoryFSHandler())
	614	# use wx.MemoryFSHandler
	615	self.imgRAM = wx.MemoryFSHandler()
[78a205a]	616	# AddFile, image can be retrieved with 'memory:filename'
[51f14603]	617	self.imgRAM.AddFile('img_inv.png', wximgbmp, wx.BITMAP_TYPE_PNG)
[78a205a]	618
[51f14603]	619	self.wximgbmp = 'memory:img_inv.png'
	620	self.image = fig
	621
	622	class Reader(CansasReader):
	623	"""
	624	Class to load a .inv invariant file
	625	"""
[78a205a]	626	# # File type
[51f14603]	627	type_name = "Invariant"
[78a205a]	628
	629	# # Wildcards
[51f14603]	630	type = ["Invariant file (.inv)\|.inv",
[b9a5f0e]	631	"SASView file (.svs)\|.svs"]
[78a205a]	632	# # List of allowed extensions
	633	ext = ['.inv', '.INV', '.svs', 'SVS']
	634
[51f14603]	635	def __init__(self, call_back, cansas=True):
	636	"""
	637	Initialize the call-back method to be called
	638	after we load a file
[78a205a]	639
[51f14603]	640	: param call_back: call-back method
	641	: param cansas: True = files will be written/read in CanSAS format
[78a205a]	642	False = write CanSAS format
[51f14603]	643	"""
[78a205a]	644	# # Call back method to be executed after a file is read
[51f14603]	645	self.call_back = call_back
[78a205a]	646	# # CanSAS format flag
[51f14603]	647	self.cansas = cansas
	648	self.state = None
	649
	650	def read(self, path):
[78a205a]	651	"""
[51f14603]	652	Load a new invariant state from file
[78a205a]	653
[51f14603]	654	: param path: file path
	655	: return: None
	656	"""
[2469df7]	657	if self.cansas:
[51f14603]	658	return self._read_cansas(path)
	659	else:
	660	return self._read_standalone(path)
[78a205a]	661
[51f14603]	662	def _read_standalone(self, path):
[78a205a]	663	"""
[51f14603]	664	Load a new invariant state from file.
	665	The invariant node is assumed to be the top element.
[78a205a]	666
[51f14603]	667	: param path: file path
	668	: return: None
	669	"""
	670	# Read the new state from file
	671	state = InvariantState()
	672
	673	state.fromXML(file=path)
[78a205a]	674
[51f14603]	675	# Call back to post the new state
	676	self.call_back(state)
	677	return None
[78a205a]	678
[51f14603]	679	def _parse_state(self, entry):
	680	"""
	681	Read an invariant result from an XML node
[78a205a]	682
	683	: param entry: XML node to read from
[51f14603]	684	: return: InvariantState object
	685	"""
	686	state = None
	687	# Locate the invariant node
	688	try:
	689	nodes = entry.xpath('ns:%s' % INVNODE_NAME,
	690	namespaces={'ns': CANSAS_NS})
	691	# Create an empty state
	692	if nodes != []:
	693	state = InvariantState()
	694	state.fromXML(node=nodes[0])
	695	except:
	696	msg = "XML document does not contain invariant"
	697	msg += " information.\n %s" % sys.exc_value
[c155a16]	698	logger.info(msg)
[51f14603]	699	return state
[78a205a]	700
[51f14603]	701	def _read_cansas(self, path):
[78a205a]	702	"""
[51f14603]	703	Load data and invariant information from a CanSAS XML file.
[78a205a]	704
[51f14603]	705	: param path: file path
[78a205a]	706	: return: Data1D object if a single SASentry was found,
[51f14603]	707	or a list of Data1D objects if multiple entries were found,
	708	or None of nothing was found
	709	: raise RuntimeError: when the file can't be opened
	710	: raise ValueError: when the length of the data vectors are inconsistent
	711	"""
	712	output = []
	713	if os.path.isfile(path):
[78a205a]	714	basename = os.path.basename(path)
[51f14603]	715	root, extension = os.path.splitext(basename)
[78a205a]	716
[51f14603]	717	if extension.lower() in self.ext or \
	718	extension.lower() == '.xml':
	719	tree = etree.parse(path, parser=etree.ETCompatXMLParser())
[78a205a]	720
[51f14603]	721	# Check the format version number
[78a205a]	722	# Specifying the namespace will take care of
	723	# the file format version
[51f14603]	724	root = tree.getroot()
[78a205a]	725
[51f14603]	726	entry_list = root.xpath('/ns:SASroot/ns:SASentry',
	727	namespaces={'ns': CANSAS_NS})
[78a205a]	728
[51f14603]	729	for entry in entry_list:
	730	invstate = self._parse_state(entry)
[78a205a]	731	# invstate could be None when .svs file is loaded
	732	# in this case, skip appending to output
[7432acb]	733	if invstate is not None:
[1fa4f736]	734	sas_entry, _ = self._parse_entry(entry)
[51f14603]	735	sas_entry.meta_data['invstate'] = invstate
	736	sas_entry.filename = invstate.file
	737	output.append(sas_entry)
	738	else:
	739	raise RuntimeError, "%s is not a file" % path
	740
	741	# Return output consistent with the loader's api
	742	if len(output) == 0:
	743	return None
	744	elif len(output) == 1:
	745	# Call back to post the new state
	746	self.state = output[0].meta_data['invstate']
	747	self.call_back(state=output[0].meta_data['invstate'],
[78a205a]	748	datainfo=output[0])
[51f14603]	749	return output[0]
	750	else:
[78a205a]	751	return output
	752
[51f14603]	753	def get_state(self):
	754	return self.state
[78a205a]	755
[51f14603]	756	def write(self, filename, datainfo=None, invstate=None):
	757	"""
	758	Write the content of a Data1D as a CanSAS XML file
[78a205a]	759
[51f14603]	760	: param filename: name of the file to write
	761	: param datainfo: Data1D object
	762	: param invstate: InvariantState object
	763	"""
	764	# Sanity check
[2469df7]	765	if self.cansas:
[78a205a]	766	doc = self.write_toXML(datainfo, invstate)
[51f14603]	767	# Write the XML document
	768	fd = open(filename, 'w')
	769	fd.write(doc.toprettyxml())
	770	fd.close()
	771	else:
	772	invstate.toXML(file=filename)
[78a205a]	773
[51f14603]	774	def write_toXML(self, datainfo=None, state=None):
	775	"""
	776	Write toXML, a helper for write()
[78a205a]	777
[51f14603]	778	: return: xml doc
	779	"""
	780	if datainfo is None:
[c10d9d6c]	781	datainfo = sas.sascalc.dataloader.data_info.Data1D(x=[], y=[])
	782	elif not issubclass(datainfo.__class__, sas.sascalc.dataloader.data_info.Data1D):
[51f14603]	783	msg = "The cansas writer expects a Data1D"
	784	msg += " instance: %s" % str(datainfo.__class__.__name__)
	785	raise RuntimeError, msg
[78a205a]	786	# make sure title and data run is filled up.
[235f514]	787	if datainfo.title is None or datainfo.title == '':
[51f14603]	788	datainfo.title = datainfo.name
[235f514]	789	if datainfo.run_name is None or datainfo.run_name == {}:
[51f14603]	790	datainfo.run = [str(datainfo.name)]
	791	datainfo.run_name[0] = datainfo.name
	792	# Create basic XML document
	793	doc, sasentry = self._to_xml_doc(datainfo)
	794	# Add the invariant information to the XML document
	795	if state is not None:
[78a205a]	796	doc = state.toXML(datainfo.name, doc=doc, entry_node=sasentry)
[51f14603]	797	return doc

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SasView

source: sasview/src/sas/sasgui/perspectives/invariant/invariant_state.py @ 6015eee

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