InversionPerspective.py @ edd6720

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 edd6720 was edd6720, checked in by krzywon, 6 years ago
Fix gui updates when new item selected in P(r) data list.
Property mode set to `100644`
File size: 25.4 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
	19	def is_float(value):
	20	"""Converts text input values to floats. Empty strings throw ValueError"""
	21	try:
	22	return float(value)
	23	except ValueError:
	24	return 0.0
	25
[50bfab0]	26	NUMBER_OF_TERMS = 10
	27	REGULARIZATION = 0.0001
	28	BACKGROUND_INPUT = 0.0
	29	MAX_DIST = 140.0
[edd6720]	30	DICT_KEYS = ["Calculator", "PrPlot", "DataPlot"]
[47bf906]	31
[fa81e94]	32
	33	# TODO: Update help with batch capabilities
	34	# TODO: Method to export results in some meaningful way
[d4881f6a]	35	class InversionWindow(QtWidgets.QDialog, Ui_PrInversion):
[fa81e94]	36	"""
	37	The main window for the P(r) Inversion perspective.
	38	"""
	39
	40	name = "Inversion"
[f1ec901]	41	estimateSignal = QtCore.pyqtSignal(tuple)
	42	estimateNTSignal = QtCore.pyqtSignal(tuple)
	43	calculateSignal = QtCore.pyqtSignal(tuple)
[fa81e94]	44
	45	def __init__(self, parent=None, data=None):
	46	super(InversionWindow, self).__init__()
	47	self.setupUi(self)
	48
	49	self.setWindowTitle("P(r) Inversion Perspective")
	50
	51	self._manager = parent
	52	self.communicate = GuiUtils.Communicate()
	53
	54	self.logic = InversionLogic()
	55
	56	# The window should not close
	57	self._allow_close = False
	58
[47bf906]	59	# Visible data set items
[fa81e94]	60	# current QStandardItem showing on the panel
	61	self._data = None
[47bf906]	62	# Reference to Dmax window for self._data
	63	self.dmaxWindow = None
	64	# p(r) calculator for self._data
[fa81e94]	65	self._calculator = Invertor()
[304e42f]	66	# Default to background estimate
	67	self._calculator.set_est_bck(True)
[47bf906]	68	# plots of self._data
	69	self.pr_plot = None
	70	self.data_plot = None
[e51e078]	71	# suggested nTerms
	72	self.nTermsSuggested = NUMBER_OF_TERMS
[47bf906]	73
	74	# Calculation threads used by all data items
[fa81e94]	75	self.calc_thread = None
	76	self.estimation_thread = None
[edd6720]	77	self.estimation_thread_nt = None
[fa81e94]	78
[47bf906]	79	# Mapping for all data items
	80	# list mapping data to all parameters
[fa81e94]	81	self._data_list = {}
	82	if not isinstance(data, list):
	83	data_list = [data]
	84	if data is not None:
	85	for datum in data_list:
[e51e078]	86	self.updateDataList(datum)
[f1ec901]	87
[e51e078]	88	self.enableButtons()
[8f83719f]	89
[fa81e94]	90	self.model = QtGui.QStandardItemModel(self)
	91	self.mapper = QtWidgets.QDataWidgetMapper(self)
[8f83719f]	92
	93	# Add validators
	94	self.setupValidators()
[fa81e94]	95	# Link user interactions with methods
	96	self.setupLinks()
	97	# Set values
	98	self.setupModel()
	99	# Set up the Widget Map
	100	self.setupMapper()
	101	# Set base window state
	102	self.setupWindow()
	103
	104	######################################################################
	105	# Base Perspective Class Definitions
	106
	107	def communicator(self):
	108	return self.communicate
	109
	110	def allowBatch(self):
	111	return True
	112
	113	def setClosable(self, value=True):
	114	"""
	115	Allow outsiders close this widget
	116	"""
	117	assert isinstance(value, bool)
	118	self._allow_close = value
	119
	120	def closeEvent(self, event):
	121	"""
	122	Overwrite QDialog close method to allow for custom widget close
	123	"""
	124	if self._allow_close:
	125	# reset the closability flag
	126	self.setClosable(value=False)
[d4881f6a]	127	# Tell the MdiArea to close the container
	128	self.parentWidget().close()
[fa81e94]	129	event.accept()
	130	else:
	131	event.ignore()
	132	# Maybe we should just minimize
	133	self.setWindowState(QtCore.Qt.WindowMinimized)
	134
	135	######################################################################
	136	# Initialization routines
	137
	138	def setupLinks(self):
	139	"""Connect the use controls to their appropriate methods"""
	140	self.dataList.currentIndexChanged.connect(self.displayChange)
[f1ec901]	141	self.calculateAllButton.clicked.connect(self.startThreadAll)
	142	self.calculateThisButton.clicked.connect(self.startThread)
[fa81e94]	143	self.removeButton.clicked.connect(self.removeData)
	144	self.helpButton.clicked.connect(self.help)
	145	self.estimateBgd.toggled.connect(self.toggleBgd)
	146	self.manualBgd.toggled.connect(self.toggleBgd)
	147	self.regConstantSuggestionButton.clicked.connect(self.acceptAlpha)
	148	self.noOfTermsSuggestionButton.clicked.connect(self.acceptNoTerms)
	149	self.explorerButton.clicked.connect(self.openExplorerWindow)
[f1ec901]	150
	151	self.backgroundInput.editingFinished.connect(
[441a03f]	152	lambda: self.set_background(is_float(self.backgroundInput.text())))
[f1ec901]	153	self.minQInput.editingFinished.connect(
[8f83719f]	154	lambda: self._calculator.set_qmin(is_float(self.minQInput.text())))
[f1ec901]	155	self.regularizationConstantInput.editingFinished.connect(
[8f83719f]	156	lambda: self._calculator.set_alpha(is_float(self.regularizationConstantInput.text())))
[f1ec901]	157	self.maxDistanceInput.editingFinished.connect(
[8f83719f]	158	lambda: self._calculator.set_dmax(is_float(self.maxDistanceInput.text())))
[f1ec901]	159	self.maxQInput.editingFinished.connect(
[8f83719f]	160	lambda: self._calculator.set_qmax(is_float(self.maxQInput.text())))
[f1ec901]	161	self.slitHeightInput.editingFinished.connect(
[8f83719f]	162	lambda: self._calculator.set_slit_height(is_float(self.slitHeightInput.text())))
[f1ec901]	163	self.slitWidthInput.editingFinished.connect(
[8f83719f]	164	lambda: self._calculator.set_slit_width(is_float(self.slitHeightInput.text())))
[f1ec901]	165
[fa81e94]	166	self.model.itemChanged.connect(self.model_changed)
[f1ec901]	167	self.estimateNTSignal.connect(self._estimateNTUpdate)
	168	self.estimateSignal.connect(self._estimateUpdate)
	169	self.calculateSignal.connect(self._calculateUpdate)
[fa81e94]	170
	171	def setupMapper(self):
	172	# Set up the mapper.
	173	self.mapper.setOrientation(QtCore.Qt.Vertical)
	174	self.mapper.setModel(self.model)
	175
	176	# Filename
	177	self.mapper.addMapping(self.dataList, WIDGETS.W_FILENAME)
	178	# Background
	179	self.mapper.addMapping(self.backgroundInput, WIDGETS.W_BACKGROUND_INPUT)
	180	self.mapper.addMapping(self.estimateBgd, WIDGETS.W_ESTIMATE)
	181	self.mapper.addMapping(self.manualBgd, WIDGETS.W_MANUAL_INPUT)
	182
	183	# Qmin/Qmax
	184	self.mapper.addMapping(self.minQInput, WIDGETS.W_QMIN)
	185	self.mapper.addMapping(self.maxQInput, WIDGETS.W_QMAX)
	186
	187	# Slit Parameter items
	188	self.mapper.addMapping(self.slitWidthInput, WIDGETS.W_SLIT_WIDTH)
	189	self.mapper.addMapping(self.slitHeightInput, WIDGETS.W_SLIT_HEIGHT)
	190
	191	# Parameter Items
[8f83719f]	192	self.mapper.addMapping(self.regularizationConstantInput, WIDGETS.W_REGULARIZATION)
	193	self.mapper.addMapping(self.regConstantSuggestionButton, WIDGETS.W_REGULARIZATION_SUGGEST)
[fa81e94]	194	self.mapper.addMapping(self.explorerButton, WIDGETS.W_EXPLORE)
	195	self.mapper.addMapping(self.maxDistanceInput, WIDGETS.W_MAX_DIST)
	196	self.mapper.addMapping(self.noOfTermsInput, WIDGETS.W_NO_TERMS)
[8f83719f]	197	self.mapper.addMapping(self.noOfTermsSuggestionButton, WIDGETS.W_NO_TERMS_SUGGEST)
[fa81e94]	198
	199	# Output
	200	self.mapper.addMapping(self.rgValue, WIDGETS.W_RG)
	201	self.mapper.addMapping(self.iQ0Value, WIDGETS.W_I_ZERO)
	202	self.mapper.addMapping(self.backgroundValue, WIDGETS.W_BACKGROUND_OUTPUT)
	203	self.mapper.addMapping(self.computationTimeValue, WIDGETS.W_COMP_TIME)
	204	self.mapper.addMapping(self.chiDofValue, WIDGETS.W_CHI_SQUARED)
	205	self.mapper.addMapping(self.oscillationValue, WIDGETS.W_OSCILLATION)
	206	self.mapper.addMapping(self.posFractionValue, WIDGETS.W_POS_FRACTION)
[8f83719f]	207	self.mapper.addMapping(self.sigmaPosFractionValue, WIDGETS.W_SIGMA_POS_FRACTION)
[fa81e94]	208
	209	# Main Buttons
	210	self.mapper.addMapping(self.removeButton, WIDGETS.W_REMOVE)
[f1ec901]	211	self.mapper.addMapping(self.calculateAllButton, WIDGETS.W_CALCULATE_ALL)
[8f83719f]	212	self.mapper.addMapping(self.calculateThisButton, WIDGETS.W_CALCULATE_VISIBLE)
[fa81e94]	213	self.mapper.addMapping(self.helpButton, WIDGETS.W_HELP)
	214
	215	self.mapper.toFirst()
	216
	217	def setupModel(self):
	218	"""
	219	Update boxes with initial values
	220	"""
[50bfab0]	221	item = QtGui.QStandardItem(str(BACKGROUND_INPUT))
[fa81e94]	222	self.model.setItem(WIDGETS.W_BACKGROUND_INPUT, item)
	223	item = QtGui.QStandardItem("")
	224	self.model.setItem(WIDGETS.W_QMIN, item)
	225	item = QtGui.QStandardItem("")
	226	self.model.setItem(WIDGETS.W_QMAX, item)
	227	item = QtGui.QStandardItem("")
	228	self.model.setItem(WIDGETS.W_SLIT_WIDTH, item)
	229	item = QtGui.QStandardItem("")
	230	self.model.setItem(WIDGETS.W_SLIT_HEIGHT, item)
[50bfab0]	231	item = QtGui.QStandardItem(str(NUMBER_OF_TERMS))
[fa81e94]	232	self.model.setItem(WIDGETS.W_NO_TERMS, item)
[50bfab0]	233	item = QtGui.QStandardItem(str(REGULARIZATION))
[fa81e94]	234	self.model.setItem(WIDGETS.W_REGULARIZATION, item)
[50bfab0]	235	item = QtGui.QStandardItem(str(MAX_DIST))
[fa81e94]	236	self.model.setItem(WIDGETS.W_MAX_DIST, item)
	237	item = QtGui.QStandardItem("")
	238	self.model.setItem(WIDGETS.W_RG, item)
	239	item = QtGui.QStandardItem("")
	240	self.model.setItem(WIDGETS.W_I_ZERO, item)
	241	item = QtGui.QStandardItem("")
	242	self.model.setItem(WIDGETS.W_BACKGROUND_OUTPUT, item)
	243	item = QtGui.QStandardItem("")
	244	self.model.setItem(WIDGETS.W_COMP_TIME, item)
	245	item = QtGui.QStandardItem("")
	246	self.model.setItem(WIDGETS.W_CHI_SQUARED, item)
	247	item = QtGui.QStandardItem("")
	248	self.model.setItem(WIDGETS.W_OSCILLATION, item)
	249	item = QtGui.QStandardItem("")
	250	self.model.setItem(WIDGETS.W_POS_FRACTION, item)
	251	item = QtGui.QStandardItem("")
	252	self.model.setItem(WIDGETS.W_SIGMA_POS_FRACTION, item)
	253
	254	def setupWindow(self):
	255	"""Initialize base window state on init"""
	256	self.enableButtons()
	257	self.estimateBgd.setChecked(True)
	258
[8f83719f]	259	def setupValidators(self):
	260	"""Apply validators to editable line edits"""
	261	self.noOfTermsInput.setValidator(QtGui.QIntValidator())
	262	self.regularizationConstantInput.setValidator(GuiUtils.DoubleValidator())
	263	self.maxDistanceInput.setValidator(GuiUtils.DoubleValidator())
	264	self.minQInput.setValidator(GuiUtils.DoubleValidator())
	265	self.maxQInput.setValidator(GuiUtils.DoubleValidator())
	266	self.slitHeightInput.setValidator(GuiUtils.DoubleValidator())
	267	self.slitWidthInput.setValidator(GuiUtils.DoubleValidator())
	268
[fa81e94]	269	######################################################################
	270	# Methods for updating GUI
	271
	272	def enableButtons(self):
	273	"""
	274	Enable buttons when data is present, else disable them
	275	"""
[8f83719f]	276	self.calculateAllButton.setEnabled(self.logic.data_is_loaded)
	277	self.calculateThisButton.setEnabled(self.logic.data_is_loaded)
[fa81e94]	278	self.removeButton.setEnabled(self.logic.data_is_loaded)
	279	self.explorerButton.setEnabled(self.logic.data_is_loaded)
[b685c7b]	280	self.regConstantSuggestionButton.setEnabled(
	281	self._calculator.suggested_alpha != self._calculator.alpha)
	282	self.noOfTermsSuggestionButton.setEnabled(
	283	self._calculator.nfunc != self.nTermsSuggested)
[fa81e94]	284
	285	def populateDataComboBox(self, filename, data_ref):
	286	"""
	287	Append a new file name to the data combobox
	288	:param filename: data filename
	289	:param data_ref: QStandardItem reference for data set to be added
	290	"""
[6a3e1fe]	291	self.dataList.addItem(filename, data_ref)
[fa81e94]	292
	293	def acceptNoTerms(self):
	294	"""Send estimated no of terms to input"""
	295	self.model.setItem(WIDGETS.W_NO_TERMS, QtGui.QStandardItem(
	296	self.noOfTermsSuggestionButton.text()))
	297
	298	def acceptAlpha(self):
	299	"""Send estimated alpha to input"""
	300	self.model.setItem(WIDGETS.W_REGULARIZATION, QtGui.QStandardItem(
	301	self.regConstantSuggestionButton.text()))
	302
[edd6720]	303	def displayChange(self, data_index=0):
[47bf906]	304	"""Switch to another item in the data list"""
[edd6720]	305	self.updateDataList(self._data)
	306	self.setCurrentData(self.dataList.itemData(data_index))
[fa81e94]	307
	308	######################################################################
	309	# GUI Interaction Events
	310
	311	def update_calculator(self):
	312	"""Update all p(r) params"""
[edd6720]	313	self._calculator.set_x(self.logic.data.x)
	314	self._calculator.set_y(self.logic.data.y)
	315	self._calculator.set_err(self.logic.data.dy)
[441a03f]	316	self.set_background(self.backgroundInput.text())
	317
	318	def set_background(self, value):
	319	self._calculator.background = is_float(value)
[fa81e94]	320
	321	def model_changed(self):
	322	"""Update the values when user makes changes"""
	323	if not self.mapper:
	324	msg = "Unable to update P{r}. The connection between the main GUI "
	325	msg += "and P(r) was severed. Attempting to restart P(r)."
	326	logging.warning(msg)
	327	self.setClosable(True)
	328	self.close()
	329	InversionWindow.__init__(self.parent(), list(self._data_list.keys()))
	330	exit(0)
	331	if self.pr_plot is not None:
	332	title = self.pr_plot.name
[6a3e1fe]	333	GuiUtils.updateModelItemWithPlot(self._data, self.pr_plot, title)
[fa81e94]	334	if self.data_plot is not None:
	335	title = self.data_plot.name
[6a3e1fe]	336	GuiUtils.updateModelItemWithPlot(self._data, self.data_plot, title)
[8f83719f]	337	if self.dmaxWindow is not None:
[47bf906]	338	self.dmaxWindow.pr_state = self._calculator
	339	self.dmaxWindow.nfunc = self.getNFunc()
	340	self.dmaxWindow.modelChanged()
[edd6720]	341	self.mapper.toLast()
[fa81e94]	342
	343	def help(self):
	344	"""
	345	Open the P(r) Inversion help browser
	346	"""
[e90988c]	347	tree_location = "/user/sasgui/perspectives/pr/pr_help.html"
[fa81e94]	348
	349	# Actual file anchor will depend on the combo box index
	350	# Note that we can be clusmy here, since bad current_fitter_id
	351	# will just make the page displayed from the top
[e90988c]	352	self._manager.showHelp(tree_location)
[fa81e94]	353
	354	def toggleBgd(self):
	355	"""
	356	Toggle the background between manual and estimated
	357	"""
[edd6720]	358	if self.estimateBgd.isChecked():
	359	self.manualBgd.setChecked(False)
[fa81e94]	360	self.backgroundInput.setEnabled(False)
[304e42f]	361	self._calculator.set_est_bck = True
[edd6720]	362	elif self.manualBgd.isChecked():
	363	self.estimateBgd.setChecked(False)
[fa81e94]	364	self.backgroundInput.setEnabled(True)
[304e42f]	365	self._calculator.set_est_bck = False
[441a03f]	366	else:
	367	pass
[fa81e94]	368
	369	def openExplorerWindow(self):
	370	"""
	371	Open the Explorer window to see correlations between params and results
	372	"""
	373	from .DMaxExplorerWidget import DmaxWindow
	374	self.dmaxWindow = DmaxWindow(self._calculator, self.getNFunc(), self)
	375	self.dmaxWindow.show()
	376
	377	######################################################################
	378	# Response Actions
	379
	380	def setData(self, data_item=None, is_batch=False):
	381	"""
	382	Assign new data set(s) to the P(r) perspective
	383	Obtain a QStandardItem object and parse it to get Data1D/2D
	384	Pass it over to the calculator
	385	"""
	386	assert data_item is not None
	387
	388	if not isinstance(data_item, list):
	389	msg = "Incorrect type passed to the P(r) Perspective"
[47bf906]	390	raise AttributeError(msg)
[fa81e94]	391
	392	for data in data_item:
[8f83719f]	393	if data in self._data_list.keys():
	394	# Don't add data if it's already in
[edd6720]	395	continue
[fa81e94]	396	# Create initial internal mappings
[edd6720]	397	self.logic.data = GuiUtils.dataFromItem(data)
[e51e078]	398	# Estimate q range
	399	qmin, qmax = self.logic.computeDataRange()
	400	self._calculator.set_qmin(qmin)
	401	self._calculator.set_qmax(qmax)
	402	self.updateDataList(data)
[edd6720]	403	self.populateDataComboBox(self.logic.data.filename, data)
	404	self.dataList.setCurrentIndex(len(self.dataList) - 1)
	405	self.setCurrentData(data)
[fa81e94]	406
[47bf906]	407	def updateDataList(self, dataRef):
	408	"""Save the current data state of the window into self._data_list"""
[e51e078]	409	if dataRef is None:
	410	return
[47bf906]	411	self._data_list[dataRef] = {
[e51e078]	412	DICT_KEYS[0]: self._calculator,
	413	DICT_KEYS[1]: self.pr_plot,
[edd6720]	414	DICT_KEYS[2]: self.data_plot
[47bf906]	415	}
	416
[fa81e94]	417	def getNFunc(self):
	418	"""Get the n_func value from the GUI object"""
[50bfab0]	419	try:
	420	nfunc = int(self.noOfTermsInput.text())
	421	except ValueError:
[edd6720]	422	logging.error("Incorrect number of terms specified: %s"
	423	%self.noOfTermsInput.text())
[50bfab0]	424	self.noOfTermsInput.setText(str(NUMBER_OF_TERMS))
	425	nfunc = NUMBER_OF_TERMS
	426	return nfunc
[fa81e94]	427
	428	def setCurrentData(self, data_ref):
[47bf906]	429	"""Get the data by reference and display as necessary"""
[304e42f]	430	if data_ref is None:
	431	return
[fa81e94]	432	if not isinstance(data_ref, QtGui.QStandardItem):
	433	msg = "Incorrect type passed to the P(r) Perspective"
[e51e078]	434	raise AttributeError(msg)
[fa81e94]	435	# Data references
	436	self._data = data_ref
[edd6720]	437	self.logic.data = GuiUtils.dataFromItem(data_ref)
[47bf906]	438	self._calculator = self._data_list[data_ref].get(DICT_KEYS[0])
	439	self.pr_plot = self._data_list[data_ref].get(DICT_KEYS[1])
	440	self.data_plot = self._data_list[data_ref].get(DICT_KEYS[2])
[edd6720]	441	self.performEstimate()
[e51e078]	442
	443	def updateGuiValues(self):
	444	pr = self._calculator
	445	out = self._calculator.out
	446	cov = self._calculator.cov
	447	elapsed = self._calculator.elapsed
	448	alpha = self._calculator.suggested_alpha
	449	self.model.setItem(WIDGETS.W_QMIN,
	450	QtGui.QStandardItem("{:.4g}".format(pr.get_qmin())))
	451	self.model.setItem(WIDGETS.W_QMAX,
	452	QtGui.QStandardItem("{:.4g}".format(pr.get_qmax())))
	453	self.model.setItem(WIDGETS.W_BACKGROUND_INPUT,
[304e42f]	454	QtGui.QStandardItem("{:.3f}".format(pr.background)))
[e51e078]	455	self.model.setItem(WIDGETS.W_BACKGROUND_OUTPUT,
	456	QtGui.QStandardItem("{:.3g}".format(pr.background)))
	457	self.model.setItem(WIDGETS.W_COMP_TIME,
	458	QtGui.QStandardItem("{:.4g}".format(elapsed)))
[b685c7b]	459	self.regConstantSuggestionButton.setText("{:-3.2g}".format(alpha))
	460	self.noOfTermsSuggestionButton.setText(
	461	"{:n}".format(self.nTermsSuggested))
[e51e078]	462	self.model.setItem(WIDGETS.W_COMP_TIME,
	463	QtGui.QStandardItem("{:.2g}".format(elapsed)))
	464
[304e42f]	465	if isinstance(pr.chi2, np.ndarray):
[e51e078]	466	self.model.setItem(WIDGETS.W_CHI_SQUARED,
	467	QtGui.QStandardItem("{:.3g}".format(pr.chi2[0])))
	468	if out is not None:
	469	self.model.setItem(WIDGETS.W_RG,
	470	QtGui.QStandardItem("{:.3g}".format(pr.rg(out))))
	471	self.model.setItem(WIDGETS.W_I_ZERO,
	472	QtGui.QStandardItem(
	473	"{:.3g}".format(pr.iq0(out))))
	474	self.model.setItem(WIDGETS.W_OSCILLATION, QtGui.QStandardItem(
	475	"{:.3g}".format(pr.oscillations(out))))
	476	self.model.setItem(WIDGETS.W_POS_FRACTION, QtGui.QStandardItem(
	477	"{:.3g}".format(pr.get_positive(out))))
	478	if cov is not None:
	479	self.model.setItem(WIDGETS.W_SIGMA_POS_FRACTION,
	480	QtGui.QStandardItem(
	481	"{:.3g}".format(
	482	pr.get_pos_err(out, cov))))
[b685c7b]	483	self.enableButtons()
[47bf906]	484
	485	def removeData(self):
	486	"""Remove the existing data reference from the P(r) Persepective"""
	487	if self.dmaxWindow is not None:
[edd6720]	488	self.dmaxWindow.close()
[47bf906]	489	self.dmaxWindow = None
	490	self.dataList.removeItem(self.dataList.currentIndex())
	491	self._data_list.pop(self._data)
[e51e078]	492	# Last file removed
	493	if len(self._data_list) == 0:
[b685c7b]	494	self.pr_plot = None
	495	self.data_plot = None
[e51e078]	496	self._calculator = Invertor()
[edd6720]	497	self.logic.data = None
[b685c7b]	498	self.nTermsSuggested = NUMBER_OF_TERMS
	499	self.noOfTermsSuggestionButton.setText("{:n}".format(
	500	self.nTermsSuggested))
	501	self.regConstantSuggestionButton.setText("{:-3.2g}".format(
	502	REGULARIZATION))
[edd6720]	503	self.updateGuiValues()
[b685c7b]	504	self.setupModel()
[ba4e3ba]	505	else:
	506	self.dataList.setCurrentIndex(0)
	507	self.updateGuiValues()
[fa81e94]	508
	509	######################################################################
	510	# Thread Creators
	511	def startThreadAll(self):
[e51e078]	512	for data_ref in self._data_list.keys():
	513	self.setCurrentData(data_ref)
[fa81e94]	514	self.startThread()
	515
	516	def startThread(self):
	517	"""
	518	Start a calculation thread
	519	"""
	520	from .Thread import CalcPr
	521
	522	# Set data before running the calculations
	523	self.update_calculator()
	524
	525	# If a thread is already started, stop it
	526	if self.calc_thread is not None and self.calc_thread.isrunning():
	527	self.calc_thread.stop()
	528	pr = self._calculator.clone()
	529	nfunc = self.getNFunc()
	530	self.calc_thread = CalcPr(pr, nfunc,
	531	error_func=self._threadError,
[f1ec901]	532	completefn=self._calculateCompleted,
	533	updatefn=None)
[fa81e94]	534	self.calc_thread.queue()
	535	self.calc_thread.ready(2.5)
	536
	537	def performEstimateNT(self):
	538	"""
[f1ec901]	539	Perform parameter estimation
[fa81e94]	540	"""
	541	from .Thread import EstimateNT
	542
[edd6720]	543	self.update_calculator()
	544
[fa81e94]	545	# If a thread is already started, stop it
[edd6720]	546	if (self.estimation_thread_nt is not None and
	547	self.estimation_thread_nt.isrunning()):
	548	self.estimation_thread_nt.stop()
[fa81e94]	549	pr = self._calculator.clone()
	550	# Skip the slit settings for the estimation
	551	# It slows down the application and it doesn't change the estimates
	552	pr.slit_height = 0.0
	553	pr.slit_width = 0.0
	554	nfunc = self.getNFunc()
[f1ec901]	555
[edd6720]	556	self.estimation_thread_nt = EstimateNT(pr, nfunc,
[fa81e94]	557	error_func=self._threadError,
	558	completefn=self._estimateNTCompleted,
	559	updatefn=None)
[edd6720]	560	self.estimation_thread_nt.queue()
	561	self.estimation_thread_nt.ready(2.5)
[fa81e94]	562
	563	def performEstimate(self):
	564	"""
	565	Perform parameter estimation
	566	"""
	567	from .Thread import EstimatePr
	568
	569	# If a thread is already started, stop it
	570	if (self.estimation_thread is not None and
	571	self.estimation_thread.isrunning()):
	572	self.estimation_thread.stop()
[edd6720]	573	self.estimation_thread = EstimatePr(self._calculator.clone(),
	574	self.getNFunc(),
[fa81e94]	575	error_func=self._threadError,
	576	completefn=self._estimateCompleted,
	577	updatefn=None)
	578	self.estimation_thread.queue()
	579	self.estimation_thread.ready(2.5)
	580
	581	######################################################################
	582	# Thread Complete
	583
	584	def _estimateCompleted(self, alpha, message, elapsed):
[f1ec901]	585	''' Send a signal to the main thread for model update'''
	586	self.estimateSignal.emit((alpha, message, elapsed))
	587
	588	def _estimateUpdate(self, output_tuple):
[fa81e94]	589	"""
	590	Parameter estimation completed,
	591	display the results to the user
	592
	593	:param alpha: estimated best alpha
	594	:param elapsed: computation time
	595	"""
[f1ec901]	596	alpha, message, elapsed = output_tuple
[fa81e94]	597	if message:
	598	logging.info(message)
	599	self.performEstimateNT()
	600
	601	def _estimateNTCompleted(self, nterms, alpha, message, elapsed):
[f1ec901]	602	''' Send a signal to the main thread for model update'''
	603	self.estimateNTSignal.emit((nterms, alpha, message, elapsed))
	604
	605	def _estimateNTUpdate(self, output_tuple):
[fa81e94]	606	"""
	607	Parameter estimation completed,
	608	display the results to the user
	609
	610	:param alpha: estimated best alpha
	611	:param nterms: estimated number of terms
	612	:param elapsed: computation time
	613	"""
[f1ec901]	614	nterms, alpha, message, elapsed = output_tuple
[e51e078]	615	self._calculator.elapsed = elapsed
	616	self._calculator.suggested_alpha = alpha
	617	self.nTermsSuggested = nterms
[fa81e94]	618	# Save useful info
[e51e078]	619	self.updateGuiValues()
[fa81e94]	620	if message:
	621	logging.info(message)
	622
[f1ec901]	623	def _calculateCompleted(self, out, cov, pr, elapsed):
	624	''' Send a signal to the main thread for model update'''
	625	self.calculateSignal.emit((out, cov, pr, elapsed))
	626
	627	def _calculateUpdate(self, output_tuple):
[fa81e94]	628	"""
	629	Method called with the results when the inversion is done
	630
	631	:param out: output coefficient for the base functions
	632	:param cov: covariance matrix
	633	:param pr: Invertor instance
	634	:param elapsed: time spent computing
	635	"""
[f1ec901]	636	out, cov, pr, elapsed = output_tuple
[fa81e94]	637	# Save useful info
	638	cov = np.ascontiguousarray(cov)
	639	pr.cov = cov
	640	pr.out = out
	641	pr.elapsed = elapsed
	642
	643	# Save Pr invertor
	644	self._calculator = pr
[f1ec901]	645
[fa81e94]	646	# Create new P(r) and fit plots
	647	if self.pr_plot is None:
	648	self.pr_plot = self.logic.newPRPlot(out, self._calculator, cov)
	649	if self.data_plot is None:
	650	self.data_plot = self.logic.new1DPlot(out, self._calculator)
[e51e078]	651	self.updateDataList(self._data)
	652	self.updateGuiValues()
[fa81e94]	653
	654	def _threadError(self, error):
	655	"""
	656	Call-back method for calculation errors
	657	"""
	658	logging.warning(error)

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SasView

source: sasview/src/sas/qtgui/Perspectives/Inversion/InversionPerspective.py @ edd6720

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