InversionPerspective.py @ 98485fe

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 98485fe was 98485fe, checked in by krzywon, 6 years ago
Run the P(r) batch fits in order to prevent thread interference and other code cleanup.
Property mode set to `100644`
File size: 27.4 KB

Rev	Line
[fa81e94]	1	import sys
	2	import logging
	3	import pylab
	4	import numpy as np
	5
	6	from PyQt5 import QtGui, QtCore, QtWidgets
	7
	8	# sas-global
	9	import sas.qtgui.Utilities.GuiUtils as GuiUtils
	10
	11	# pr inversion GUI elements
	12	from .InversionUtils import WIDGETS
	13	from .UI.TabbedInversionUI import Ui_PrInversion
	14	from .InversionLogic import InversionLogic
	15
	16	# pr inversion calculation elements
	17	from sas.sascalc.pr.invertor import Invertor
	18
[effdd98]	19	# Batch calculation display
	20	from sas.qtgui.Utilities.GridPanel import BatchInversionOutputPanel
	21
[b9e89d5]	22
[fa81e94]	23	def is_float(value):
	24	"""Converts text input values to floats. Empty strings throw ValueError"""
	25	try:
	26	return float(value)
	27	except ValueError:
	28	return 0.0
	29
[b9e89d5]	30
[50bfab0]	31	NUMBER_OF_TERMS = 10
	32	REGULARIZATION = 0.0001
	33	BACKGROUND_INPUT = 0.0
	34	MAX_DIST = 140.0
[edd6720]	35	DICT_KEYS = ["Calculator", "PrPlot", "DataPlot"]
[47bf906]	36
[fa81e94]	37
	38	# TODO: Update help with batch capabilities
[d4881f6a]	39	class InversionWindow(QtWidgets.QDialog, Ui_PrInversion):
[fa81e94]	40	"""
	41	The main window for the P(r) Inversion perspective.
	42	"""
	43
	44	name = "Inversion"
[f1ec901]	45	estimateSignal = QtCore.pyqtSignal(tuple)
	46	estimateNTSignal = QtCore.pyqtSignal(tuple)
	47	calculateSignal = QtCore.pyqtSignal(tuple)
[fa81e94]	48
	49	def __init__(self, parent=None, data=None):
	50	super(InversionWindow, self).__init__()
	51	self.setupUi(self)
	52
	53	self.setWindowTitle("P(r) Inversion Perspective")
	54
	55	self._manager = parent
[b9e89d5]	56	self.communicate = parent.communicator()
	57	self.communicate.dataDeletedSignal.connect(self.removeData)
[fa81e94]	58
	59	self.logic = InversionLogic()
	60
	61	# The window should not close
	62	self._allow_close = False
	63
[47bf906]	64	# Visible data set items
[fa81e94]	65	# current QStandardItem showing on the panel
	66	self._data = None
[47bf906]	67	# Reference to Dmax window for self._data
	68	self.dmaxWindow = None
	69	# p(r) calculator for self._data
[fa81e94]	70	self._calculator = Invertor()
[304e42f]	71	# Default to background estimate
[bb6b037]	72	self._calculator.est_bck = True
[47bf906]	73	# plots of self._data
	74	self.pr_plot = None
	75	self.data_plot = None
[e51e078]	76	# suggested nTerms
	77	self.nTermsSuggested = NUMBER_OF_TERMS
[47bf906]	78
	79	# Calculation threads used by all data items
[98485fe]	80	self.isBatch = False
[fa81e94]	81	self.calc_thread = None
	82	self.estimation_thread = None
[edd6720]	83	self.estimation_thread_nt = None
[fa81e94]	84
[47bf906]	85	# Mapping for all data items
	86	# list mapping data to all parameters
[fa81e94]	87	self._data_list = {}
	88	if not isinstance(data, list):
	89	data_list = [data]
	90	if data is not None:
	91	for datum in data_list:
[e51e078]	92	self.updateDataList(datum)
[f1ec901]	93
[e51e078]	94	self.enableButtons()
[8f83719f]	95
[fa81e94]	96	self.model = QtGui.QStandardItemModel(self)
	97	self.mapper = QtWidgets.QDataWidgetMapper(self)
[8f83719f]	98
[98485fe]	99	# Batch fitting results
[effdd98]	100	self.grid_window = None
[98485fe]	101	self.batchResults = {}
	102	self.batchComplete = []
[effdd98]	103
[8f83719f]	104	# Add validators
	105	self.setupValidators()
[fa81e94]	106	# Link user interactions with methods
	107	self.setupLinks()
	108	# Set values
	109	self.setupModel()
	110	# Set up the Widget Map
	111	self.setupMapper()
	112	# Set base window state
	113	self.setupWindow()
	114
	115	######################################################################
	116	# Base Perspective Class Definitions
	117
	118	def communicator(self):
	119	return self.communicate
	120
	121	def allowBatch(self):
	122	return True
	123
	124	def setClosable(self, value=True):
	125	"""
	126	Allow outsiders close this widget
	127	"""
	128	assert isinstance(value, bool)
	129	self._allow_close = value
	130
	131	def closeEvent(self, event):
	132	"""
	133	Overwrite QDialog close method to allow for custom widget close
	134	"""
	135	if self._allow_close:
	136	# reset the closability flag
	137	self.setClosable(value=False)
[d4881f6a]	138	# Tell the MdiArea to close the container
	139	self.parentWidget().close()
[fa81e94]	140	event.accept()
	141	else:
	142	event.ignore()
	143	# Maybe we should just minimize
	144	self.setWindowState(QtCore.Qt.WindowMinimized)
	145
	146	######################################################################
	147	# Initialization routines
	148
	149	def setupLinks(self):
	150	"""Connect the use controls to their appropriate methods"""
	151	self.dataList.currentIndexChanged.connect(self.displayChange)
[f1ec901]	152	self.calculateAllButton.clicked.connect(self.startThreadAll)
	153	self.calculateThisButton.clicked.connect(self.startThread)
[fa81e94]	154	self.removeButton.clicked.connect(self.removeData)
	155	self.helpButton.clicked.connect(self.help)
	156	self.estimateBgd.toggled.connect(self.toggleBgd)
	157	self.manualBgd.toggled.connect(self.toggleBgd)
	158	self.regConstantSuggestionButton.clicked.connect(self.acceptAlpha)
	159	self.noOfTermsSuggestionButton.clicked.connect(self.acceptNoTerms)
	160	self.explorerButton.clicked.connect(self.openExplorerWindow)
[f1ec901]	161
	162	self.backgroundInput.editingFinished.connect(
[bb6b037]	163	lambda: self.set_background(self.backgroundInput.text()))
[f1ec901]	164	self.minQInput.editingFinished.connect(
[8f83719f]	165	lambda: self._calculator.set_qmin(is_float(self.minQInput.text())))
[f1ec901]	166	self.regularizationConstantInput.editingFinished.connect(
[8f83719f]	167	lambda: self._calculator.set_alpha(is_float(self.regularizationConstantInput.text())))
[f1ec901]	168	self.maxDistanceInput.editingFinished.connect(
[8f83719f]	169	lambda: self._calculator.set_dmax(is_float(self.maxDistanceInput.text())))
[f1ec901]	170	self.maxQInput.editingFinished.connect(
[8f83719f]	171	lambda: self._calculator.set_qmax(is_float(self.maxQInput.text())))
[f1ec901]	172	self.slitHeightInput.editingFinished.connect(
[8f83719f]	173	lambda: self._calculator.set_slit_height(is_float(self.slitHeightInput.text())))
[f1ec901]	174	self.slitWidthInput.editingFinished.connect(
[8f83719f]	175	lambda: self._calculator.set_slit_width(is_float(self.slitHeightInput.text())))
[f1ec901]	176
[fa81e94]	177	self.model.itemChanged.connect(self.model_changed)
[f1ec901]	178	self.estimateNTSignal.connect(self._estimateNTUpdate)
	179	self.estimateSignal.connect(self._estimateUpdate)
	180	self.calculateSignal.connect(self._calculateUpdate)
[fa81e94]	181
	182	def setupMapper(self):
	183	# Set up the mapper.
	184	self.mapper.setOrientation(QtCore.Qt.Vertical)
	185	self.mapper.setModel(self.model)
	186
	187	# Filename
	188	self.mapper.addMapping(self.dataList, WIDGETS.W_FILENAME)
	189	# Background
	190	self.mapper.addMapping(self.backgroundInput, WIDGETS.W_BACKGROUND_INPUT)
	191	self.mapper.addMapping(self.estimateBgd, WIDGETS.W_ESTIMATE)
	192	self.mapper.addMapping(self.manualBgd, WIDGETS.W_MANUAL_INPUT)
	193
	194	# Qmin/Qmax
	195	self.mapper.addMapping(self.minQInput, WIDGETS.W_QMIN)
	196	self.mapper.addMapping(self.maxQInput, WIDGETS.W_QMAX)
	197
	198	# Slit Parameter items
	199	self.mapper.addMapping(self.slitWidthInput, WIDGETS.W_SLIT_WIDTH)
	200	self.mapper.addMapping(self.slitHeightInput, WIDGETS.W_SLIT_HEIGHT)
	201
	202	# Parameter Items
[8f83719f]	203	self.mapper.addMapping(self.regularizationConstantInput, WIDGETS.W_REGULARIZATION)
	204	self.mapper.addMapping(self.regConstantSuggestionButton, WIDGETS.W_REGULARIZATION_SUGGEST)
[fa81e94]	205	self.mapper.addMapping(self.explorerButton, WIDGETS.W_EXPLORE)
	206	self.mapper.addMapping(self.maxDistanceInput, WIDGETS.W_MAX_DIST)
	207	self.mapper.addMapping(self.noOfTermsInput, WIDGETS.W_NO_TERMS)
[8f83719f]	208	self.mapper.addMapping(self.noOfTermsSuggestionButton, WIDGETS.W_NO_TERMS_SUGGEST)
[fa81e94]	209
	210	# Output
	211	self.mapper.addMapping(self.rgValue, WIDGETS.W_RG)
	212	self.mapper.addMapping(self.iQ0Value, WIDGETS.W_I_ZERO)
	213	self.mapper.addMapping(self.backgroundValue, WIDGETS.W_BACKGROUND_OUTPUT)
	214	self.mapper.addMapping(self.computationTimeValue, WIDGETS.W_COMP_TIME)
	215	self.mapper.addMapping(self.chiDofValue, WIDGETS.W_CHI_SQUARED)
	216	self.mapper.addMapping(self.oscillationValue, WIDGETS.W_OSCILLATION)
	217	self.mapper.addMapping(self.posFractionValue, WIDGETS.W_POS_FRACTION)
[8f83719f]	218	self.mapper.addMapping(self.sigmaPosFractionValue, WIDGETS.W_SIGMA_POS_FRACTION)
[fa81e94]	219
	220	# Main Buttons
	221	self.mapper.addMapping(self.removeButton, WIDGETS.W_REMOVE)
[f1ec901]	222	self.mapper.addMapping(self.calculateAllButton, WIDGETS.W_CALCULATE_ALL)
[8f83719f]	223	self.mapper.addMapping(self.calculateThisButton, WIDGETS.W_CALCULATE_VISIBLE)
[fa81e94]	224	self.mapper.addMapping(self.helpButton, WIDGETS.W_HELP)
	225
	226	self.mapper.toFirst()
	227
	228	def setupModel(self):
	229	"""
	230	Update boxes with initial values
	231	"""
[50bfab0]	232	item = QtGui.QStandardItem(str(BACKGROUND_INPUT))
[fa81e94]	233	self.model.setItem(WIDGETS.W_BACKGROUND_INPUT, item)
	234	item = QtGui.QStandardItem("")
	235	self.model.setItem(WIDGETS.W_QMIN, item)
	236	item = QtGui.QStandardItem("")
	237	self.model.setItem(WIDGETS.W_QMAX, item)
	238	item = QtGui.QStandardItem("")
	239	self.model.setItem(WIDGETS.W_SLIT_WIDTH, item)
	240	item = QtGui.QStandardItem("")
	241	self.model.setItem(WIDGETS.W_SLIT_HEIGHT, item)
[50bfab0]	242	item = QtGui.QStandardItem(str(NUMBER_OF_TERMS))
[fa81e94]	243	self.model.setItem(WIDGETS.W_NO_TERMS, item)
[50bfab0]	244	item = QtGui.QStandardItem(str(REGULARIZATION))
[fa81e94]	245	self.model.setItem(WIDGETS.W_REGULARIZATION, item)
[50bfab0]	246	item = QtGui.QStandardItem(str(MAX_DIST))
[fa81e94]	247	self.model.setItem(WIDGETS.W_MAX_DIST, item)
	248	item = QtGui.QStandardItem("")
	249	self.model.setItem(WIDGETS.W_RG, item)
	250	item = QtGui.QStandardItem("")
	251	self.model.setItem(WIDGETS.W_I_ZERO, item)
	252	item = QtGui.QStandardItem("")
	253	self.model.setItem(WIDGETS.W_BACKGROUND_OUTPUT, item)
	254	item = QtGui.QStandardItem("")
	255	self.model.setItem(WIDGETS.W_COMP_TIME, item)
	256	item = QtGui.QStandardItem("")
	257	self.model.setItem(WIDGETS.W_CHI_SQUARED, item)
	258	item = QtGui.QStandardItem("")
	259	self.model.setItem(WIDGETS.W_OSCILLATION, item)
	260	item = QtGui.QStandardItem("")
	261	self.model.setItem(WIDGETS.W_POS_FRACTION, item)
	262	item = QtGui.QStandardItem("")
	263	self.model.setItem(WIDGETS.W_SIGMA_POS_FRACTION, item)
	264
	265	def setupWindow(self):
	266	"""Initialize base window state on init"""
	267	self.enableButtons()
	268	self.estimateBgd.setChecked(True)
	269
[8f83719f]	270	def setupValidators(self):
	271	"""Apply validators to editable line edits"""
	272	self.noOfTermsInput.setValidator(QtGui.QIntValidator())
	273	self.regularizationConstantInput.setValidator(GuiUtils.DoubleValidator())
	274	self.maxDistanceInput.setValidator(GuiUtils.DoubleValidator())
	275	self.minQInput.setValidator(GuiUtils.DoubleValidator())
	276	self.maxQInput.setValidator(GuiUtils.DoubleValidator())
	277	self.slitHeightInput.setValidator(GuiUtils.DoubleValidator())
	278	self.slitWidthInput.setValidator(GuiUtils.DoubleValidator())
	279
[fa81e94]	280	######################################################################
	281	# Methods for updating GUI
	282
	283	def enableButtons(self):
	284	"""
	285	Enable buttons when data is present, else disable them
	286	"""
[318b353e]	287	self.calculateAllButton.setEnabled(len(self._data_list) > 1)
[8f83719f]	288	self.calculateThisButton.setEnabled(self.logic.data_is_loaded)
[fa81e94]	289	self.removeButton.setEnabled(self.logic.data_is_loaded)
	290	self.explorerButton.setEnabled(self.logic.data_is_loaded)
[b685c7b]	291	self.regConstantSuggestionButton.setEnabled(
	292	self._calculator.suggested_alpha != self._calculator.alpha)
	293	self.noOfTermsSuggestionButton.setEnabled(
	294	self._calculator.nfunc != self.nTermsSuggested)
[fa81e94]	295
	296	def populateDataComboBox(self, filename, data_ref):
	297	"""
	298	Append a new file name to the data combobox
	299	:param filename: data filename
	300	:param data_ref: QStandardItem reference for data set to be added
	301	"""
[6a3e1fe]	302	self.dataList.addItem(filename, data_ref)
[fa81e94]	303
	304	def acceptNoTerms(self):
	305	"""Send estimated no of terms to input"""
	306	self.model.setItem(WIDGETS.W_NO_TERMS, QtGui.QStandardItem(
	307	self.noOfTermsSuggestionButton.text()))
	308
	309	def acceptAlpha(self):
	310	"""Send estimated alpha to input"""
	311	self.model.setItem(WIDGETS.W_REGULARIZATION, QtGui.QStandardItem(
	312	self.regConstantSuggestionButton.text()))
	313
[edd6720]	314	def displayChange(self, data_index=0):
[47bf906]	315	"""Switch to another item in the data list"""
[edd6720]	316	self.updateDataList(self._data)
	317	self.setCurrentData(self.dataList.itemData(data_index))
[fa81e94]	318
	319	######################################################################
	320	# GUI Interaction Events
	321
	322	def update_calculator(self):
	323	"""Update all p(r) params"""
[edd6720]	324	self._calculator.set_x(self.logic.data.x)
	325	self._calculator.set_y(self.logic.data.y)
	326	self._calculator.set_err(self.logic.data.dy)
[441a03f]	327	self.set_background(self.backgroundInput.text())
	328
	329	def set_background(self, value):
	330	self._calculator.background = is_float(value)
[fa81e94]	331
	332	def model_changed(self):
	333	"""Update the values when user makes changes"""
	334	if not self.mapper:
	335	msg = "Unable to update P{r}. The connection between the main GUI "
	336	msg += "and P(r) was severed. Attempting to restart P(r)."
	337	logging.warning(msg)
	338	self.setClosable(True)
	339	self.close()
	340	InversionWindow.__init__(self.parent(), list(self._data_list.keys()))
	341	exit(0)
[8f83719f]	342	if self.dmaxWindow is not None:
[47bf906]	343	self.dmaxWindow.nfunc = self.getNFunc()
[bb6b037]	344	self.dmaxWindow.pr_state = self._calculator
[edd6720]	345	self.mapper.toLast()
[fa81e94]	346
	347	def help(self):
	348	"""
	349	Open the P(r) Inversion help browser
	350	"""
[e90988c]	351	tree_location = "/user/sasgui/perspectives/pr/pr_help.html"
[fa81e94]	352
	353	# Actual file anchor will depend on the combo box index
	354	# Note that we can be clusmy here, since bad current_fitter_id
	355	# will just make the page displayed from the top
[e90988c]	356	self._manager.showHelp(tree_location)
[fa81e94]	357
	358	def toggleBgd(self):
	359	"""
	360	Toggle the background between manual and estimated
	361	"""
[edd6720]	362	if self.estimateBgd.isChecked():
	363	self.manualBgd.setChecked(False)
[fa81e94]	364	self.backgroundInput.setEnabled(False)
[304e42f]	365	self._calculator.set_est_bck = True
[edd6720]	366	elif self.manualBgd.isChecked():
	367	self.estimateBgd.setChecked(False)
[fa81e94]	368	self.backgroundInput.setEnabled(True)
[304e42f]	369	self._calculator.set_est_bck = False
[441a03f]	370	else:
	371	pass
[fa81e94]	372
	373	def openExplorerWindow(self):
	374	"""
	375	Open the Explorer window to see correlations between params and results
	376	"""
	377	from .DMaxExplorerWidget import DmaxWindow
	378	self.dmaxWindow = DmaxWindow(self._calculator, self.getNFunc(), self)
	379	self.dmaxWindow.show()
	380
[98485fe]	381	def showBatchOutput(self):
[76567bb]	382	"""
	383	Display the batch output in tabular form
	384	:param output_data: Dictionary mapping filename -> P(r) instance
	385	"""
[effdd98]	386	if self.grid_window is None:
	387	self.grid_window = BatchInversionOutputPanel(
[98485fe]	388	parent=self, output_data=self.batchResults)
[76567bb]	389	else:
[98485fe]	390	self.grid_window.setupTable(self.batchResults)
[effdd98]	391	self.grid_window.show()
	392
[fa81e94]	393	######################################################################
	394	# Response Actions
	395
	396	def setData(self, data_item=None, is_batch=False):
	397	"""
	398	Assign new data set(s) to the P(r) perspective
	399	Obtain a QStandardItem object and parse it to get Data1D/2D
	400	Pass it over to the calculator
	401	"""
	402	assert data_item is not None
	403
	404	if not isinstance(data_item, list):
	405	msg = "Incorrect type passed to the P(r) Perspective"
[47bf906]	406	raise AttributeError(msg)
[fa81e94]	407
	408	for data in data_item:
[8f83719f]	409	if data in self._data_list.keys():
	410	# Don't add data if it's already in
[edd6720]	411	continue
[fa81e94]	412	# Create initial internal mappings
[edd6720]	413	self.logic.data = GuiUtils.dataFromItem(data)
[e51e078]	414	# Estimate q range
	415	qmin, qmax = self.logic.computeDataRange()
	416	self._calculator.set_qmin(qmin)
	417	self._calculator.set_qmax(qmax)
	418	self.updateDataList(data)
[edd6720]	419	self.populateDataComboBox(self.logic.data.filename, data)
	420	self.dataList.setCurrentIndex(len(self.dataList) - 1)
	421	self.setCurrentData(data)
[fa81e94]	422
[47bf906]	423	def updateDataList(self, dataRef):
	424	"""Save the current data state of the window into self._data_list"""
[e51e078]	425	if dataRef is None:
	426	return
[47bf906]	427	self._data_list[dataRef] = {
[e51e078]	428	DICT_KEYS[0]: self._calculator,
	429	DICT_KEYS[1]: self.pr_plot,
[edd6720]	430	DICT_KEYS[2]: self.data_plot
[47bf906]	431	}
[98485fe]	432	# Update batch results window when finished
	433	self.batchResults[self.logic.data.filename] = self._calculator
	434	if self.grid_window is not None:
	435	self.showBatchOutput()
[47bf906]	436
[fa81e94]	437	def getNFunc(self):
	438	"""Get the n_func value from the GUI object"""
[50bfab0]	439	try:
	440	nfunc = int(self.noOfTermsInput.text())
	441	except ValueError:
[edd6720]	442	logging.error("Incorrect number of terms specified: %s"
	443	%self.noOfTermsInput.text())
[50bfab0]	444	self.noOfTermsInput.setText(str(NUMBER_OF_TERMS))
	445	nfunc = NUMBER_OF_TERMS
	446	return nfunc
[fa81e94]	447
	448	def setCurrentData(self, data_ref):
[47bf906]	449	"""Get the data by reference and display as necessary"""
[304e42f]	450	if data_ref is None:
	451	return
[fa81e94]	452	if not isinstance(data_ref, QtGui.QStandardItem):
	453	msg = "Incorrect type passed to the P(r) Perspective"
[e51e078]	454	raise AttributeError(msg)
[fa81e94]	455	# Data references
	456	self._data = data_ref
[edd6720]	457	self.logic.data = GuiUtils.dataFromItem(data_ref)
[47bf906]	458	self._calculator = self._data_list[data_ref].get(DICT_KEYS[0])
	459	self.pr_plot = self._data_list[data_ref].get(DICT_KEYS[1])
	460	self.data_plot = self._data_list[data_ref].get(DICT_KEYS[2])
[edd6720]	461	self.performEstimate()
[e51e078]	462
	463	def updateGuiValues(self):
	464	pr = self._calculator
	465	out = self._calculator.out
	466	cov = self._calculator.cov
	467	elapsed = self._calculator.elapsed
	468	alpha = self._calculator.suggested_alpha
	469	self.model.setItem(WIDGETS.W_QMIN,
	470	QtGui.QStandardItem("{:.4g}".format(pr.get_qmin())))
	471	self.model.setItem(WIDGETS.W_QMAX,
	472	QtGui.QStandardItem("{:.4g}".format(pr.get_qmax())))
	473	self.model.setItem(WIDGETS.W_BACKGROUND_INPUT,
[effdd98]	474	QtGui.QStandardItem("{:.3g}".format(pr.background)))
[e51e078]	475	self.model.setItem(WIDGETS.W_BACKGROUND_OUTPUT,
	476	QtGui.QStandardItem("{:.3g}".format(pr.background)))
	477	self.model.setItem(WIDGETS.W_COMP_TIME,
	478	QtGui.QStandardItem("{:.4g}".format(elapsed)))
[b685c7b]	479	self.regConstantSuggestionButton.setText("{:-3.2g}".format(alpha))
	480	self.noOfTermsSuggestionButton.setText(
	481	"{:n}".format(self.nTermsSuggested))
[e51e078]	482	self.model.setItem(WIDGETS.W_COMP_TIME,
	483	QtGui.QStandardItem("{:.2g}".format(elapsed)))
	484
[304e42f]	485	if isinstance(pr.chi2, np.ndarray):
[e51e078]	486	self.model.setItem(WIDGETS.W_CHI_SQUARED,
	487	QtGui.QStandardItem("{:.3g}".format(pr.chi2[0])))
	488	if out is not None:
	489	self.model.setItem(WIDGETS.W_RG,
	490	QtGui.QStandardItem("{:.3g}".format(pr.rg(out))))
	491	self.model.setItem(WIDGETS.W_I_ZERO,
	492	QtGui.QStandardItem(
	493	"{:.3g}".format(pr.iq0(out))))
	494	self.model.setItem(WIDGETS.W_OSCILLATION, QtGui.QStandardItem(
	495	"{:.3g}".format(pr.oscillations(out))))
	496	self.model.setItem(WIDGETS.W_POS_FRACTION, QtGui.QStandardItem(
	497	"{:.3g}".format(pr.get_positive(out))))
	498	if cov is not None:
	499	self.model.setItem(WIDGETS.W_SIGMA_POS_FRACTION,
	500	QtGui.QStandardItem(
	501	"{:.3g}".format(
	502	pr.get_pos_err(out, cov))))
[98485fe]	503	if self.pr_plot is not None:
	504	title = self.pr_plot.name
	505	GuiUtils.updateModelItemWithPlot(self._data, self.pr_plot, title)
	506	self.communicate.plotRequestedSignal.emit([self.pr_plot])
	507	if self.data_plot is not None:
	508	title = self.data_plot.name
	509	GuiUtils.updateModelItemWithPlot(self._data, self.data_plot, title)
	510	self.communicate.plotRequestedSignal.emit(
	511	[self.data_plot, self.logic.data])
[b685c7b]	512	self.enableButtons()
[47bf906]	513
[b9e89d5]	514	def removeData(self, data_list=None):
[47bf906]	515	"""Remove the existing data reference from the P(r) Persepective"""
	516	if self.dmaxWindow is not None:
[edd6720]	517	self.dmaxWindow.close()
[47bf906]	518	self.dmaxWindow = None
[98485fe]	519	if self.grid_window is not None:
	520	self.grid_window.close()
[b9e89d5]	521	if not data_list:
	522	data_list = [self._data]
	523	for data in data_list:
	524	self._data_list.pop(data)
[76567bb]	525	self._data = None
[b9e89d5]	526	for index in range(0, len(self.dataList)):
	527	if self.dataList.itemData(index) in data_list:
	528	self.dataList.removeItem(index)
[e51e078]	529	# Last file removed
	530	if len(self._data_list) == 0:
[bb6b037]	531	self._data = None
[b685c7b]	532	self.pr_plot = None
	533	self.data_plot = None
[e51e078]	534	self._calculator = Invertor()
[edd6720]	535	self.logic.data = None
[b685c7b]	536	self.nTermsSuggested = NUMBER_OF_TERMS
	537	self.noOfTermsSuggestionButton.setText("{:n}".format(
	538	self.nTermsSuggested))
	539	self.regConstantSuggestionButton.setText("{:-3.2g}".format(
	540	REGULARIZATION))
[edd6720]	541	self.updateGuiValues()
[b685c7b]	542	self.setupModel()
[ba4e3ba]	543	else:
	544	self.dataList.setCurrentIndex(0)
	545	self.updateGuiValues()
[fa81e94]	546
	547	######################################################################
	548	# Thread Creators
[98485fe]	549
[fa81e94]	550	def startThreadAll(self):
[98485fe]	551	self.batchComplete = []
	552	self.isBatch = True
	553	self.performEstimate()
	554	self.showBatchOutput()
	555
	556	def startNextBatchItem(self):
	557	self.isBatch = False
	558	for index in range(len(self._data_list)):
	559	if index not in self.batchComplete:
	560	self.dataList.setCurrentIndex(index)
	561	self.isBatch = True
	562	break
	563	# If none left, end
	564	if self.isBatch:
[76567bb]	565	self.performEstimate()
[fa81e94]	566
	567	def startThread(self):
	568	"""
	569	Start a calculation thread
	570	"""
	571	from .Thread import CalcPr
	572
	573	# Set data before running the calculations
	574	self.update_calculator()
	575
	576	# If a thread is already started, stop it
	577	if self.calc_thread is not None and self.calc_thread.isrunning():
	578	self.calc_thread.stop()
	579	pr = self._calculator.clone()
	580	nfunc = self.getNFunc()
	581	self.calc_thread = CalcPr(pr, nfunc,
	582	error_func=self._threadError,
[f1ec901]	583	completefn=self._calculateCompleted,
	584	updatefn=None)
[fa81e94]	585	self.calc_thread.queue()
	586	self.calc_thread.ready(2.5)
	587
	588	def performEstimateNT(self):
	589	"""
[f1ec901]	590	Perform parameter estimation
[fa81e94]	591	"""
	592	from .Thread import EstimateNT
	593
[edd6720]	594	self.update_calculator()
	595
[fa81e94]	596	# If a thread is already started, stop it
[edd6720]	597	if (self.estimation_thread_nt is not None and
	598	self.estimation_thread_nt.isrunning()):
	599	self.estimation_thread_nt.stop()
[fa81e94]	600	pr = self._calculator.clone()
	601	# Skip the slit settings for the estimation
	602	# It slows down the application and it doesn't change the estimates
	603	pr.slit_height = 0.0
	604	pr.slit_width = 0.0
	605	nfunc = self.getNFunc()
[f1ec901]	606
[edd6720]	607	self.estimation_thread_nt = EstimateNT(pr, nfunc,
[fa81e94]	608	error_func=self._threadError,
	609	completefn=self._estimateNTCompleted,
	610	updatefn=None)
[edd6720]	611	self.estimation_thread_nt.queue()
	612	self.estimation_thread_nt.ready(2.5)
[fa81e94]	613
	614	def performEstimate(self):
	615	"""
	616	Perform parameter estimation
	617	"""
	618	from .Thread import EstimatePr
	619
	620	# If a thread is already started, stop it
	621	if (self.estimation_thread is not None and
	622	self.estimation_thread.isrunning()):
	623	self.estimation_thread.stop()
[edd6720]	624	self.estimation_thread = EstimatePr(self._calculator.clone(),
	625	self.getNFunc(),
[fa81e94]	626	error_func=self._threadError,
	627	completefn=self._estimateCompleted,
	628	updatefn=None)
	629	self.estimation_thread.queue()
	630	self.estimation_thread.ready(2.5)
	631
	632	######################################################################
	633	# Thread Complete
	634
	635	def _estimateCompleted(self, alpha, message, elapsed):
[f1ec901]	636	''' Send a signal to the main thread for model update'''
	637	self.estimateSignal.emit((alpha, message, elapsed))
	638
	639	def _estimateUpdate(self, output_tuple):
[fa81e94]	640	"""
	641	Parameter estimation completed,
	642	display the results to the user
	643
	644	:param alpha: estimated best alpha
	645	:param elapsed: computation time
	646	"""
[f1ec901]	647	alpha, message, elapsed = output_tuple
[fa81e94]	648	if message:
	649	logging.info(message)
[98485fe]	650	self.performEstimateNT()
[fa81e94]	651
	652	def _estimateNTCompleted(self, nterms, alpha, message, elapsed):
[f1ec901]	653	''' Send a signal to the main thread for model update'''
	654	self.estimateNTSignal.emit((nterms, alpha, message, elapsed))
	655
	656	def _estimateNTUpdate(self, output_tuple):
[fa81e94]	657	"""
	658	Parameter estimation completed,
	659	display the results to the user
	660
	661	:param alpha: estimated best alpha
	662	:param nterms: estimated number of terms
	663	:param elapsed: computation time
	664	"""
[f1ec901]	665	nterms, alpha, message, elapsed = output_tuple
[e51e078]	666	self._calculator.elapsed = elapsed
	667	self._calculator.suggested_alpha = alpha
	668	self.nTermsSuggested = nterms
[fa81e94]	669	# Save useful info
[e51e078]	670	self.updateGuiValues()
[fa81e94]	671	if message:
	672	logging.info(message)
[98485fe]	673	if self.isBatch:
	674	self.acceptAlpha()
	675	self.acceptNoTerms()
	676	self.startThread()
[fa81e94]	677
[f1ec901]	678	def _calculateCompleted(self, out, cov, pr, elapsed):
	679	''' Send a signal to the main thread for model update'''
	680	self.calculateSignal.emit((out, cov, pr, elapsed))
	681
	682	def _calculateUpdate(self, output_tuple):
[fa81e94]	683	"""
	684	Method called with the results when the inversion is done
	685
	686	:param out: output coefficient for the base functions
	687	:param cov: covariance matrix
	688	:param pr: Invertor instance
	689	:param elapsed: time spent computing
	690	"""
[f1ec901]	691	out, cov, pr, elapsed = output_tuple
[fa81e94]	692	# Save useful info
	693	cov = np.ascontiguousarray(cov)
	694	pr.cov = cov
	695	pr.out = out
	696	pr.elapsed = elapsed
	697
	698	# Save Pr invertor
	699	self._calculator = pr
[f1ec901]	700
[318b353e]	701	# Update P(r) and fit plots
	702	self.pr_plot = self.logic.newPRPlot(out, self._calculator, cov)
	703	self.pr_plot.filename = self.logic.data.filename
	704	self.data_plot = self.logic.new1DPlot(out, self._calculator)
	705	self.data_plot.filename = self.logic.data.filename
	706
	707	# Udpate internals and GUI
[e51e078]	708	self.updateDataList(self._data)
	709	self.updateGuiValues()
[98485fe]	710	if self.isBatch:
	711	self.batchComplete.append(self.dataList.currentIndex())
	712	self.startNextBatchItem()
[fa81e94]	713
	714	def _threadError(self, error):
	715	"""
	716	Call-back method for calculation errors
	717	"""
	718	logging.warning(error)

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SasView

source: sasview/src/sas/qtgui/Perspectives/Inversion/InversionPerspective.py @ 98485fe

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