Plotter.py @ d9e7792

ESS_GUIESS_GUI_batch_fittingESS_GUI_bumps_abstractionESS_GUI_iss1116ESS_GUI_openclESS_GUI_sync_sascalc

Last change on this file since d9e7792 was d9e7792, checked in by Piotr Rozyczko <piotr.rozyczko@…>, 5 years ago
Show Plot now restores minimized plots. SASVIEW-1221 == trac#13 Added "Minimize all plots" to Window menu Changed draw → draw_idle to avoid weird numpy linalg errors
Property mode set to `100644`
File size: 26.2 KB

Rev	Line
[4992ff2]	1	from PyQt5 import QtCore
	2	from PyQt5 import QtGui
	3	from PyQt5 import QtWidgets
	4
[aadf0af1]	5	import functools
	6	import copy
[0231f93]	7	import matplotlib as mpl
[facf4ca]	8	import numpy as np
[9290b1a]	9	from matplotlib.font_manager import FontProperties
[863ebca]	10
[dc5ef15]	11	from sas.qtgui.Plotting.PlotterData import Data1D
[83eb5208]	12	from sas.qtgui.Plotting.PlotterBase import PlotterBase
	13	from sas.qtgui.Plotting.AddText import AddText
	14	from sas.qtgui.Plotting.SetGraphRange import SetGraphRange
	15	from sas.qtgui.Plotting.LinearFit import LinearFit
	16	from sas.qtgui.Plotting.PlotProperties import PlotProperties
[bb57068]	17	from sas.qtgui.Plotting.ScaleProperties import ScaleProperties
[dc5ef15]	18
	19	import sas.qtgui.Utilities.GuiUtils as GuiUtils
[83eb5208]	20	import sas.qtgui.Plotting.PlotUtilities as PlotUtilities
[8cb6cd6]	21
[416fa8f]	22	class PlotterWidget(PlotterBase):
[c4e5400]	23	"""
	24	1D Plot widget for use with a QDialog
[fecfe28]	25	"""
[416fa8f]	26	def __init__(self, parent=None, manager=None, quickplot=False):
	27	super(PlotterWidget, self).__init__(parent, manager=manager, quickplot=quickplot)
[570a58f9]	28
[27313b7]	29	self.parent = parent
[8cb6cd6]	30
[aadf0af1]	31	# Dictionary of {plot_id:Data1d}
	32	self.plot_dict = {}
[c2f3ca2]	33	# Dictionaty of {plot_id:line}
[aadf0af1]	34
[c2f3ca2]	35	self.plot_lines = {}
[fed94a2]	36	# Window for text add
	37	self.addText = AddText(self)
[aadf0af1]	38
[fed94a2]	39	# Log-ness of the axes
[570a58f9]	40	self.xLogLabel = "log10(x)"
	41	self.yLogLabel = "log10(y)"
	42
	43	# Data container for the linear fit
[fed94a2]	44	self.fit_result = Data1D(x=[], y=[], dy=None)
	45	self.fit_result.symbol = 13
	46	self.fit_result.name = "Fit"
[570a58f9]	47
[31c5b58]	48	@property
	49	def data(self):
	50	return self._data
	51
	52	@data.setter
	53	def data(self, value):
[8cb6cd6]	54	""" data setter """
[31c5b58]	55	self._data = value
[cb4d219]	56	if value._xunit:
	57	self.xLabel = "%s(%s)"%(value._xaxis, value._xunit)
	58	else:
	59	self.xLabel = "%s"%(value._xaxis)
	60	if value._yunit:
	61	self.yLabel = "%s(%s)"%(value._yaxis, value._yunit)
	62	else:
	63	self.yLabel = "%s"%(value._yaxis)
	64
	65	if value.scale == 'linear' or value.isSesans:
[749b715]	66	self.xscale = 'linear'
	67	self.yscale = 'linear'
[aadf0af1]	68	self.title(title=value.name)
[8cb6cd6]	69
[04ac604]	70	def plot(self, data=None, color=None, marker=None, hide_error=False, transform=True):
[8cb6cd6]	71	"""
[aadf0af1]	72	Add a new plot of self._data to the chart.
[8cb6cd6]	73	"""
[9290b1a]	74	# Data1D
	75	if isinstance(data, Data1D):
	76	self.data = data
[34f13a83]	77
	78	if not self._data:
[1f34e00]	79	return
[9290b1a]	80
[87cc73a]	81	is_fit = (self.data.id=="fit")
[570a58f9]	82
[685e0e3]	83	if not is_fit:
	84	# make sure we have some function to operate on
	85	if self.data.xtransform is None:
	86	self.data.xtransform = 'log10(x)'
	87	if self.data.ytransform is None:
	88	self.data.ytransform = 'log10(y)'
[d0952de]	89	#Added condition to Dmax explorer from P(r) perspective
	90	if self.data._xaxis == 'D_{max}':
	91	self.xscale = 'linear'
[685e0e3]	92	# Transform data if required.
[04ac604]	93	if transform and (self.data.xtransform is not None or self.data.ytransform is not None):
[685e0e3]	94	_, _, xscale, yscale = GuiUtils.xyTransform(self.data, self.data.xtransform, self.data.ytransform)
	95	if xscale != 'log':
	96	self.xscale = xscale
	97	if yscale != 'log':
	98	self.yscale = yscale
	99
	100	# Redefine the Scale properties dialog
	101	self.properties = ScaleProperties(self,
	102	init_scale_x=self.data.xtransform,
	103	init_scale_y=self.data.ytransform)
[f182f93]	104
[87cc73a]	105	# Shortcuts
[ef01be4]	106	ax = self.ax
[87cc73a]	107	x = self._data.view.x
	108	y = self._data.view.y
	109
	110	# Marker symbol. Passed marker is one of matplotlib.markers characters
	111	# Alternatively, picked up from Data1D as an int index of PlotUtilities.SHAPES dict
	112	if marker is None:
	113	marker = self.data.symbol
[6fd4e36]	114	# Try name first
	115	try:
[cb4d219]	116	marker = dict(PlotUtilities.SHAPES)[marker]
[6fd4e36]	117	except KeyError:
[8f83719f]	118	marker = list(PlotUtilities.SHAPES.values())[marker]
[87cc73a]	119
[6fd4e36]	120	assert marker is not None
[87cc73a]	121	# Plot name
[b789967]	122	if self.data.title:
	123	self.title(title=self.data.title)
	124	else:
	125	self.title(title=self.data.name)
[87cc73a]	126
	127	# Error marker toggle
	128	if hide_error is None:
	129	hide_error = self.data.hide_error
	130
	131	# Plot color
	132	if color is None:
	133	color = self.data.custom_color
	134
	135	color = PlotUtilities.getValidColor(color)
[0231f93]	136	self.data.custom_color = color
[87cc73a]	137
	138	markersize = self._data.markersize
	139
[facf4ca]	140	# Include scaling (log vs. linear)
[8274471e]	141	ax.set_xscale(self.xscale, nonposx='clip')
[facf4ca]	142	ax.set_yscale(self.yscale, nonposy='clip')
	143
	144	# define the ranges
	145	self.setRange = SetGraphRange(parent=self,
	146	x_range=self.ax.get_xlim(), y_range=self.ax.get_ylim())
	147
[239214f]	148	# Draw non-standard markers
	149	l_width = markersize * 0.4
	150	if marker == '-' or marker == '--':
	151	line = self.ax.plot(x, y, color=color, lw=l_width, marker='',
	152	linestyle=marker, label=self._title, zorder=10)[0]
	153
	154	elif marker == 'vline':
	155	y_min = min(y)*9.0/10.0 if min(y) < 0 else 0.0
	156	line = self.ax.vlines(x=x, ymin=y_min, ymax=y, color=color,
	157	linestyle='-', label=self._title, lw=l_width, zorder=1)
	158
	159	elif marker == 'step':
	160	line = self.ax.step(x, y, color=color, marker='', linestyle='-',
	161	label=self._title, lw=l_width, zorder=1)[0]
[8cb6cd6]	162
[c4e5400]	163	else:
[87cc73a]	164	# plot data with/without errorbars
	165	if hide_error:
	166	line = ax.plot(x, y, marker=marker, color=color, markersize=markersize,
	167	linestyle='', label=self._title, picker=True)
	168	else:
[facf4ca]	169	dy = self._data.view.dy
	170	# Convert tuple (lo,hi) to array [(x-lo),(hi-x)]
	171	if dy is not None and type(dy) == type(()):
	172	dy = np.vstack((y - dy[0], dy[1] - y)).transpose()
	173
[87cc73a]	174	line = ax.errorbar(x, y,
[facf4ca]	175	yerr=dy,
	176	xerr=None,
[87cc73a]	177	capsize=2, linestyle='',
	178	barsabove=False,
	179	color=color,
	180	marker=marker,
	181	markersize=markersize,
	182	lolims=False, uplims=False,
	183	xlolims=False, xuplims=False,
	184	label=self._title,
[facf4ca]	185	zorder=1,
[87cc73a]	186	picker=True)
[8cb6cd6]	187
[aadf0af1]	188	# Update the list of data sets (plots) in chart
[0cd98a1]	189	self.plot_dict[self._data.name] = self.data
[aadf0af1]	190
[0cd98a1]	191	self.plot_lines[self._data.name] = line
[c2f3ca2]	192
[8cb6cd6]	193	# Now add the legend with some customizations.
[f0bb711]	194
[42787fb]	195	if self.showLegend:
	196	self.legend = ax.legend(loc='upper right', shadow=True)
	197	if self.legend:
	198	self.legend.set_picker(True)
[8cb6cd6]	199
[6d05e1d]	200	# Current labels for axes
[570a58f9]	201	if self.y_label and not is_fit:
	202	ax.set_ylabel(self.y_label)
	203	if self.x_label and not is_fit:
	204	ax.set_xlabel(self.x_label)
[6d05e1d]	205
[8cb6cd6]	206	# refresh canvas
[d9e7792]	207	self.canvas.draw_idle()
[8cb6cd6]	208
[aadf0af1]	209	def createContextMenu(self):
[c4e5400]	210	"""
	211	Define common context menu and associated actions for the MPL widget
	212	"""
	213	self.defaultContextMenu()
	214
[aadf0af1]	215	# Separate plots
	216	self.addPlotsToContextMenu()
	217
[27313b7]	218	# Additional menu items
	219	self.contextMenu.addSeparator()
	220	self.actionAddText = self.contextMenu.addAction("Add Text")
	221	self.actionRemoveText = self.contextMenu.addAction("Remove Text")
	222	self.contextMenu.addSeparator()
	223	self.actionChangeScale = self.contextMenu.addAction("Change Scale")
	224	self.contextMenu.addSeparator()
	225	self.actionSetGraphRange = self.contextMenu.addAction("Set Graph Range")
	226	self.actionResetGraphRange =\
	227	self.contextMenu.addAction("Reset Graph Range")
	228	# Add the title change for dialogs
[aadf0af1]	229	self.contextMenu.addSeparator()
	230	self.actionWindowTitle = self.contextMenu.addAction("Window Title")
[27313b7]	231
	232	# Define the callbacks
	233	self.actionAddText.triggered.connect(self.onAddText)
	234	self.actionRemoveText.triggered.connect(self.onRemoveText)
	235	self.actionChangeScale.triggered.connect(self.onScaleChange)
	236	self.actionSetGraphRange.triggered.connect(self.onSetGraphRange)
	237	self.actionResetGraphRange.triggered.connect(self.onResetGraphRange)
	238	self.actionWindowTitle.triggered.connect(self.onWindowsTitle)
[c4e5400]	239
[aadf0af1]	240	def addPlotsToContextMenu(self):
	241	"""
	242	Adds operations on all plotted sets of data to the context menu
	243	"""
[b3e8629]	244	for id in list(self.plot_dict.keys()):
[aadf0af1]	245	plot = self.plot_dict[id]
[b789967]	246
	247	name = plot.name if plot.name else plot.title
[aadf0af1]	248	plot_menu = self.contextMenu.addMenu('&%s' % name)
	249
	250	self.actionDataInfo = plot_menu.addAction("&DataInfo")
	251	self.actionDataInfo.triggered.connect(
	252	functools.partial(self.onDataInfo, plot))
	253
	254	self.actionSavePointsAsFile = plot_menu.addAction("&Save Points as a File")
	255	self.actionSavePointsAsFile.triggered.connect(
	256	functools.partial(self.onSavePoints, plot))
	257	plot_menu.addSeparator()
	258
	259	if plot.id != 'fit':
	260	self.actionLinearFit = plot_menu.addAction('&Linear Fit')
[570a58f9]	261	self.actionLinearFit.triggered.connect(
	262	functools.partial(self.onLinearFit, id))
[aadf0af1]	263	plot_menu.addSeparator()
	264
	265	self.actionRemovePlot = plot_menu.addAction("Remove")
	266	self.actionRemovePlot.triggered.connect(
	267	functools.partial(self.onRemovePlot, id))
	268
	269	if not plot.is_data:
	270	self.actionFreeze = plot_menu.addAction('&Freeze')
	271	self.actionFreeze.triggered.connect(
	272	functools.partial(self.onFreeze, id))
	273	plot_menu.addSeparator()
	274
	275	if plot.is_data:
	276	self.actionHideError = plot_menu.addAction("Hide Error Bar")
	277	if plot.dy is not None and plot.dy != []:
	278	if plot.hide_error:
	279	self.actionHideError.setText('Show Error Bar')
	280	else:
	281	self.actionHideError.setEnabled(False)
	282	self.actionHideError.triggered.connect(
	283	functools.partial(self.onToggleHideError, id))
	284	plot_menu.addSeparator()
	285
	286	self.actionModifyPlot = plot_menu.addAction('&Modify Plot Property')
[87cc73a]	287	self.actionModifyPlot.triggered.connect(
	288	functools.partial(self.onModifyPlot, id))
[aadf0af1]	289
	290	def createContextMenuQuick(self):
[6d05e1d]	291	"""
	292	Define context menu and associated actions for the quickplot MPL widget
	293	"""
[c4e5400]	294	# Default actions
	295	self.defaultContextMenu()
	296
	297	# Additional actions
[6d05e1d]	298	self.actionToggleGrid = self.contextMenu.addAction("Toggle Grid On/Off")
	299	self.contextMenu.addSeparator()
	300	self.actionChangeScale = self.contextMenu.addAction("Change Scale")
	301
	302	# Define the callbacks
	303	self.actionToggleGrid.triggered.connect(self.onGridToggle)
	304	self.actionChangeScale.triggered.connect(self.onScaleChange)
	305
	306	def onScaleChange(self):
	307	"""
	308	Show a dialog allowing axes rescaling
	309	"""
[4992ff2]	310	if self.properties.exec_() == QtWidgets.QDialog.Accepted:
[570a58f9]	311	self.xLogLabel, self.yLogLabel = self.properties.getValues()
[bb57068]	312	self.data.xtransform = self.xLogLabel
	313	self.data.ytransform = self.yLogLabel
[570a58f9]	314	self.xyTransform(self.xLogLabel, self.yLogLabel)
[6d05e1d]	315
[27313b7]	316	def onAddText(self):
	317	"""
	318	Show a dialog allowing adding custom text to the chart
	319	"""
[eb1a386]	320	if self.addText.exec_() != QtWidgets.QDialog.Accepted:
	321	return
	322
	323	# Retrieve the new text, its font and color
	324	extra_text = self.addText.text()
	325	extra_font = self.addText.font()
	326	extra_color = self.addText.color()
	327
	328	# Place the text on the screen at the click location
	329	pos_x = self.x_click
	330	pos_y = self.y_click
	331
	332	# Map QFont onto MPL font
	333	mpl_font = FontProperties()
	334	mpl_font.set_size(int(extra_font.pointSize()))
	335	mpl_font.set_family(str(extra_font.family()))
	336	mpl_font.set_weight(int(extra_font.weight()))
	337	# MPL style names
	338	styles = ['normal', 'italic', 'oblique']
	339	# QFont::Style maps directly onto the above
	340	try:
	341	mpl_font.set_style(styles[extra_font.style()])
	342	except:
	343	pass
	344
	345	if len(extra_text) > 0:
	346	new_text = self.ax.text(pos_x,
	347	pos_y,
	348	extra_text,
	349	color=extra_color,
	350	fontproperties=mpl_font)
	351
	352	# Update the list of annotations
	353	self.textList.append(new_text)
[d9e7792]	354	self.canvas.draw_idle()
[27313b7]	355
	356	def onRemoveText(self):
	357	"""
[9290b1a]	358	Remove the most recently added text
[27313b7]	359	"""
[d3ca363]	360	num_text = len(self.textList)
	361	if num_text < 1:
	362	return
	363	txt = self.textList[num_text - 1]
	364	text_remove = txt.get_text()
[eb1a386]	365	try:
	366	txt.remove()
	367	except ValueError:
	368	# Text got already deleted somehow
	369	pass
[d3ca363]	370	self.textList.remove(txt)
	371
	372	self.canvas.draw_idle()
[27313b7]	373
	374	def onSetGraphRange(self):
	375	"""
	376	Show a dialog allowing setting the chart ranges
	377	"""
[d3ca363]	378	# min and max of data
[4992ff2]	379	if self.setRange.exec_() == QtWidgets.QDialog.Accepted:
[257bd57]	380	x_range = self.setRange.xrange()
	381	y_range = self.setRange.yrange()
	382	if x_range is not None and y_range is not None:
	383	self.ax.set_xlim(x_range)
	384	self.ax.set_ylim(y_range)
	385	self.canvas.draw_idle()
[27313b7]	386
	387	def onResetGraphRange(self):
	388	"""
[d3ca363]	389	Resets the chart X and Y ranges to their original values
[27313b7]	390	"""
[d3ca363]	391	x_range = (self.data.x.min(), self.data.x.max())
	392	y_range = (self.data.y.min(), self.data.y.max())
[257bd57]	393	if x_range is not None and y_range is not None:
	394	self.ax.set_xlim(x_range)
	395	self.ax.set_ylim(y_range)
	396	self.canvas.draw_idle()
[27313b7]	397
[570a58f9]	398	def onLinearFit(self, id):
[aadf0af1]	399	"""
	400	Creates and displays a simple linear fit for the selected plot
	401	"""
[570a58f9]	402	selected_plot = self.plot_dict[id]
	403
	404	maxrange = (min(selected_plot.x), max(selected_plot.x))
	405	fitrange = self.ax.get_xlim()
	406
	407	fit_dialog = LinearFit(parent=self,
	408	data=selected_plot,
	409	max_range=maxrange,
	410	fit_range=fitrange,
	411	xlabel=self.xLogLabel,
	412	ylabel=self.yLogLabel)
[7969b9c]	413	fit_dialog.updatePlot.connect(self.onFitDisplay)
[4992ff2]	414	if fit_dialog.exec_() == QtWidgets.QDialog.Accepted:
[570a58f9]	415	return
[aadf0af1]	416
[87cc73a]	417	def replacePlot(self, id, new_plot):
	418	"""
	419	Remove plot 'id' and add 'new_plot' to the chart.
	420	This effectlvely refreshes the chart with changes to one of its plots
	421	"""
	422	self.removePlot(id)
	423	self.plot(data=new_plot)
	424
[aadf0af1]	425	def onRemovePlot(self, id):
	426	"""
[570a58f9]	427	Responds to the plot delete action
	428	"""
	429	self.removePlot(id)
	430
	431	if len(self.plot_dict) == 0:
	432	# last plot: graph is empty must be the panel must be destroyed
	433	self.parent.close()
	434
	435	def removePlot(self, id):
	436	"""
[aadf0af1]	437	Deletes the selected plot from the chart
	438	"""
[b3e8629]	439	if id not in list(self.plot_dict.keys()):
[570a58f9]	440	return
	441
[aadf0af1]	442	selected_plot = self.plot_dict[id]
	443
	444	plot_dict = copy.deepcopy(self.plot_dict)
	445
[b46f285]	446	# Labels might have been changed
	447	xl = self.ax.xaxis.label.get_text()
	448	yl = self.ax.yaxis.label.get_text()
	449
[aadf0af1]	450	self.plot_dict = {}
	451
[0231f93]	452	mpl.pyplot.cla()
[aadf0af1]	453	self.ax.cla()
	454
	455	for ids in plot_dict:
	456	if ids != id:
[b46f285]	457	self.plot(data=plot_dict[ids], hide_error=plot_dict[ids].hide_error)
	458
	459	# Reset the labels
	460	self.ax.set_xlabel(xl)
	461	self.ax.set_ylabel(yl)
[d9e7792]	462	self.canvas.draw_idle()
[aadf0af1]	463
	464	def onFreeze(self, id):
	465	"""
	466	Freezes the selected plot to a separate chart
	467	"""
	468	plot = self.plot_dict[id]
[3b95b3b]	469	plot = copy.deepcopy(plot)
[e2e5f3d]	470	self.manager.add_data(data_list={id:plot})
	471	self.manager.freezeDataToItem(plot)
[aadf0af1]	472
[87cc73a]	473	def onModifyPlot(self, id):
[aadf0af1]	474	"""
	475	Allows for MPL modifications to the selected plot
	476	"""
[87cc73a]	477	selected_plot = self.plot_dict[id]
[c2f3ca2]	478	selected_line = self.plot_lines[id]
[87cc73a]	479	# Old style color - single integer for enum color
	480	# New style color - #hhhhhh
	481	color = selected_plot.custom_color
	482	# marker symbol and size
	483	marker = selected_plot.symbol
	484	marker_size = selected_plot.markersize
	485	# plot name
	486	legend = selected_plot.title
	487
	488	plotPropertiesWidget = PlotProperties(self,
	489	color=color,
	490	marker=marker,
	491	marker_size=marker_size,
	492	legend=legend)
[4992ff2]	493	if plotPropertiesWidget.exec_() == QtWidgets.QDialog.Accepted:
[87cc73a]	494	# Update Data1d
[0f3c22d]	495	selected_plot.markersize = plotPropertiesWidget.markersize()
	496	selected_plot.custom_color = plotPropertiesWidget.color()
	497	selected_plot.symbol = plotPropertiesWidget.marker()
	498	selected_plot.title = plotPropertiesWidget.legend()
[87cc73a]	499
	500	# Redraw the plot
	501	self.replacePlot(id, selected_plot)
[aadf0af1]	502
	503	def onToggleHideError(self, id):
	504	"""
	505	Toggles hide error/show error menu item
	506	"""
	507	selected_plot = self.plot_dict[id]
	508	current = selected_plot.hide_error
	509
	510	# Flip the flag
	511	selected_plot.hide_error = not current
	512
	513	plot_dict = copy.deepcopy(self.plot_dict)
	514	self.plot_dict = {}
	515
	516	# Clean the canvas
[0231f93]	517	mpl.pyplot.cla()
[aadf0af1]	518	self.ax.cla()
	519
	520	# Recreate the plots but reverse the error flag for the current
	521	for ids in plot_dict:
	522	if ids == id:
	523	self.plot(data=plot_dict[ids], hide_error=(not current))
	524	else:
	525	self.plot(data=plot_dict[ids], hide_error=plot_dict[ids].hide_error)
	526
[6d05e1d]	527	def xyTransform(self, xLabel="", yLabel=""):
	528	"""
	529	Transforms x and y in View and set the scale
	530	"""
[570a58f9]	531	# Transform all the plots on the chart
[b3e8629]	532	for id in list(self.plot_dict.keys()):
[570a58f9]	533	current_plot = self.plot_dict[id]
	534	if current_plot.id == "fit":
	535	self.removePlot(id)
	536	continue
[fed94a2]	537
[570a58f9]	538	new_xlabel, new_ylabel, xscale, yscale =\
	539	GuiUtils.xyTransform(current_plot, xLabel, yLabel)
	540	self.xscale = xscale
	541	self.yscale = yscale
[b46f285]	542
[570a58f9]	543	# Plot the updated chart
	544	self.removePlot(id)
[b46f285]	545
	546	# This assignment will wrap the label in Latex "$"
	547	self.xLabel = new_xlabel
	548	self.yLabel = new_ylabel
[04ac604]	549
	550	self.plot(data=current_plot, transform=False)
[570a58f9]	551
	552	pass # debug hook
	553
[fed94a2]	554	def onFitDisplay(self, fit_data):
	555	"""
	556	Add a linear fitting line to the chart
	557	"""
	558	# Create new data structure with fitting result
	559	tempx = fit_data[0]
	560	tempy = fit_data[1]
	561	self.fit_result.x = []
	562	self.fit_result.y = []
	563	self.fit_result.x = tempx
	564	self.fit_result.y = tempy
	565	self.fit_result.dx = None
	566	self.fit_result.dy = None
	567
	568	#Remove another Fit, if exists
[5b144c6]	569	self.removePlot("Fit")
[fed94a2]	570
	571	self.fit_result.reset_view()
	572	#self.offset_graph()
	573
	574	# Set plot properties
	575	self.fit_result.id = 'fit'
	576	self.fit_result.title = 'Fit'
	577	self.fit_result.name = 'Fit'
	578
	579	# Plot the line
[87cc73a]	580	self.plot(data=self.fit_result, marker='-', hide_error=True)
[fed94a2]	581
[3bdbfcc]	582	def onMplMouseDown(self, event):
	583	"""
	584	Left button down and ready to drag
	585	"""
	586	# Check that the LEFT button was pressed
[0268aed]	587	if event.button != 1:
	588	return
	589
	590	self.leftdown = True
	591	for text in self.textList:
	592	if text.contains(event)[0]: # If user has clicked on text
	593	self.selectedText = text
	594	return
	595	if event.inaxes is None:
	596	return
	597	try:
	598	self.x_click = float(event.xdata) # / size_x
	599	self.y_click = float(event.ydata) # / size_y
	600	except:
	601	self.position = None
[3bdbfcc]	602
[c30822c]	603	x_str = GuiUtils.formatNumber(self.x_click)
	604	y_str = GuiUtils.formatNumber(self.y_click)
	605	coord_str = "x: {}, y: {}".format(x_str, y_str)
	606	self.manager.communicator.statusBarUpdateSignal.emit(coord_str)
	607
[3bdbfcc]	608	def onMplMouseUp(self, event):
	609	"""
	610	Set the data coordinates of the click
	611	"""
	612	self.x_click = event.xdata
	613	self.y_click = event.ydata
	614
	615	# Check that the LEFT button was released
	616	if event.button == 1:
	617	self.leftdown = False
	618	self.selectedText = None
	619
	620	#release the legend
	621	if self.gotLegend == 1:
	622	self.gotLegend = 0
	623
	624	def onMplMouseMotion(self, event):
	625	"""
	626	Check if the left button is press and the mouse in moving.
	627	Compute delta for x and y coordinates and then perform the drag
	628	"""
	629	if self.gotLegend == 1 and self.leftdown:
	630	self.onLegendMotion(event)
	631	return
	632
[0268aed]	633	#if self.leftdown and self.selectedText is not None:
[9f25bce]	634	if not self.leftdown or self.selectedText is None:
[3bdbfcc]	635	return
[0268aed]	636	# User has clicked on text and is dragging
[9f25bce]	637	if event.inaxes is None:
[0268aed]	638	# User has dragged outside of axes
	639	self.selectedText = None
	640	else:
	641	# Only move text if mouse is within axes
	642	self.selectedText.set_position((event.xdata, event.ydata))
	643	self.canvas.draw_idle()
	644	return
[3bdbfcc]	645
	646	def onMplPick(self, event):
	647	"""
	648	On pick legend
	649	"""
	650	legend = self.legend
[0268aed]	651	if event.artist != legend:
	652	return
	653	# Get the box of the legend.
	654	bbox = self.legend.get_window_extent()
	655	# Get mouse coordinates at time of pick.
	656	self.mouse_x = event.mouseevent.x
	657	self.mouse_y = event.mouseevent.y
	658	# Get legend coordinates at time of pick.
	659	self.legend_x = bbox.xmin
	660	self.legend_y = bbox.ymin
	661	# Indicate we picked up the legend.
	662	self.gotLegend = 1
	663
	664	#self.legend.legendPatch.set_alpha(0.5)
[3bdbfcc]	665
	666	def onLegendMotion(self, event):
	667	"""
	668	On legend in motion
	669	"""
	670	ax = event.inaxes
[cee5c78]	671	if ax is None:
[3bdbfcc]	672	return
	673	# Event occurred inside a plotting area
	674	lo_x, hi_x = ax.get_xlim()
	675	lo_y, hi_y = ax.get_ylim()
	676	# How much the mouse moved.
	677	x = mouse_diff_x = self.mouse_x - event.x
	678	y = mouse_diff_y = self.mouse_y - event.y
	679	# Put back inside
	680	if x < lo_x:
	681	x = lo_x
	682	if x > hi_x:
	683	x = hi_x
	684	if y < lo_y:
	685	y = lo_y
	686	if y > hi_y:
	687	y = hi_y
	688	# Move the legend from its previous location by that same amount
	689	loc_in_canvas = self.legend_x - mouse_diff_x, \
	690	self.legend_y - mouse_diff_y
	691	# Transform into legend coordinate system
	692	trans_axes = self.legend.parent.transAxes.inverted()
	693	loc_in_norm_axes = trans_axes.transform_point(loc_in_canvas)
	694	self.legend_pos_loc = tuple(loc_in_norm_axes)
	695	self.legend._loc = self.legend_pos_loc
	696	self.canvas.draw_idle()
	697
	698	def onMplWheel(self, event):
	699	"""
	700	Process mouse wheel as zoom events
	701	"""
	702	ax = event.inaxes
	703	step = event.step
	704
[cee5c78]	705	if ax is not None:
[3bdbfcc]	706	# Event occurred inside a plotting area
	707	lo, hi = ax.get_xlim()
	708	lo, hi = PlotUtilities.rescale(lo, hi, step,
	709	pt=event.xdata, scale=ax.get_xscale())
	710	if not self.xscale == 'log' or lo > 0:
	711	self._scale_xlo = lo
	712	self._scale_xhi = hi
	713	ax.set_xlim((lo, hi))
	714
	715	lo, hi = ax.get_ylim()
	716	lo, hi = PlotUtilities.rescale(lo, hi, step, pt=event.ydata,
	717	scale=ax.get_yscale())
	718	if not self.yscale == 'log' or lo > 0:
	719	self._scale_ylo = lo
	720	self._scale_yhi = hi
	721	ax.set_ylim((lo, hi))
	722	else:
	723	# Check if zoom happens in the axes
	724	xdata, ydata = None, None
	725	x, y = event.x, event.y
	726
	727	for ax in self.axes:
	728	insidex, _ = ax.xaxis.contains(event)
	729	if insidex:
	730	xdata, _ = ax.transAxes.inverted().transform_point((x, y))
	731	insidey, _ = ax.yaxis.contains(event)
	732	if insidey:
	733	_, ydata = ax.transAxes.inverted().transform_point((x, y))
	734	if xdata is not None:
	735	lo, hi = ax.get_xlim()
	736	lo, hi = PlotUtilities.rescale(lo, hi, step,
	737	bal=xdata, scale=ax.get_xscale())
	738	if not self.xscale == 'log' or lo > 0:
	739	self._scale_xlo = lo
	740	self._scale_xhi = hi
	741	ax.set_xlim((lo, hi))
	742	if ydata is not None:
	743	lo, hi = ax.get_ylim()
	744	lo, hi = PlotUtilities.rescale(lo, hi, step, bal=ydata,
	745	scale=ax.get_yscale())
	746	if not self.yscale == 'log' or lo > 0:
	747	self._scale_ylo = lo
	748	self._scale_yhi = hi
	749	ax.set_ylim((lo, hi))
	750	self.canvas.draw_idle()
	751
[c4e5400]	752
[4992ff2]	753	class Plotter(QtWidgets.QDialog, PlotterWidget):
[416fa8f]	754	def __init__(self, parent=None, quickplot=False):
	755
[4992ff2]	756	QtWidgets.QDialog.__init__(self)
[aadf0af1]	757	PlotterWidget.__init__(self, parent=self, manager=parent, quickplot=quickplot)
[c4e5400]	758	icon = QtGui.QIcon()
	759	icon.addPixmap(QtGui.QPixmap(":/res/ball.ico"), QtGui.QIcon.Normal, QtGui.QIcon.Off)
	760	self.setWindowIcon(icon)
	761
[416fa8f]	762

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SasView

source: sasview/src/sas/qtgui/Plotting/Plotter.py @ d9e7792

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