Plotter.py @ 4c11b2a

ESS_GUIESS_GUI_bumps_abstractionESS_GUI_iss1116ESS_GUI_opencl

Last change on this file since 4c11b2a was 4c11b2a, checked in by awashington, 5 years ago

Pull the transform from the old plot when updating a plot

This is part of jira task 1127.

Property mode set to 100644

File size: 26.4 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	"""
[4c11b2a]	422
	423	# Pull the current transform settings from the old plot
	424	selected_plot = self.plot_dict[id]
	425	new_plot.xtransform = selected_plot.xtransform
	426	new_plot.ytransform = selected_plot.ytransform
	427
[87cc73a]	428	self.removePlot(id)
	429	self.plot(data=new_plot)
	430
[aadf0af1]	431	def onRemovePlot(self, id):
	432	"""
[570a58f9]	433	Responds to the plot delete action
	434	"""
	435	self.removePlot(id)
	436
	437	if len(self.plot_dict) == 0:
	438	# last plot: graph is empty must be the panel must be destroyed
	439	self.parent.close()
	440
	441	def removePlot(self, id):
	442	"""
[aadf0af1]	443	Deletes the selected plot from the chart
	444	"""
[b3e8629]	445	if id not in list(self.plot_dict.keys()):
[570a58f9]	446	return
	447
[aadf0af1]	448	selected_plot = self.plot_dict[id]
	449
	450	plot_dict = copy.deepcopy(self.plot_dict)
	451
[b46f285]	452	# Labels might have been changed
	453	xl = self.ax.xaxis.label.get_text()
	454	yl = self.ax.yaxis.label.get_text()
	455
[aadf0af1]	456	self.plot_dict = {}
	457
[0231f93]	458	mpl.pyplot.cla()
[aadf0af1]	459	self.ax.cla()
	460
	461	for ids in plot_dict:
	462	if ids != id:
[b46f285]	463	self.plot(data=plot_dict[ids], hide_error=plot_dict[ids].hide_error)
	464
	465	# Reset the labels
	466	self.ax.set_xlabel(xl)
	467	self.ax.set_ylabel(yl)
[d9e7792]	468	self.canvas.draw_idle()
[aadf0af1]	469
	470	def onFreeze(self, id):
	471	"""
	472	Freezes the selected plot to a separate chart
	473	"""
	474	plot = self.plot_dict[id]
[3b95b3b]	475	plot = copy.deepcopy(plot)
[e2e5f3d]	476	self.manager.add_data(data_list={id:plot})
	477	self.manager.freezeDataToItem(plot)
[aadf0af1]	478
[87cc73a]	479	def onModifyPlot(self, id):
[aadf0af1]	480	"""
	481	Allows for MPL modifications to the selected plot
	482	"""
[87cc73a]	483	selected_plot = self.plot_dict[id]
[c2f3ca2]	484	selected_line = self.plot_lines[id]
[87cc73a]	485	# Old style color - single integer for enum color
	486	# New style color - #hhhhhh
	487	color = selected_plot.custom_color
	488	# marker symbol and size
	489	marker = selected_plot.symbol
	490	marker_size = selected_plot.markersize
	491	# plot name
	492	legend = selected_plot.title
	493
	494	plotPropertiesWidget = PlotProperties(self,
	495	color=color,
	496	marker=marker,
	497	marker_size=marker_size,
	498	legend=legend)
[4992ff2]	499	if plotPropertiesWidget.exec_() == QtWidgets.QDialog.Accepted:
[87cc73a]	500	# Update Data1d
[0f3c22d]	501	selected_plot.markersize = plotPropertiesWidget.markersize()
	502	selected_plot.custom_color = plotPropertiesWidget.color()
	503	selected_plot.symbol = plotPropertiesWidget.marker()
	504	selected_plot.title = plotPropertiesWidget.legend()
[87cc73a]	505
	506	# Redraw the plot
	507	self.replacePlot(id, selected_plot)
[aadf0af1]	508
	509	def onToggleHideError(self, id):
	510	"""
	511	Toggles hide error/show error menu item
	512	"""
	513	selected_plot = self.plot_dict[id]
	514	current = selected_plot.hide_error
	515
	516	# Flip the flag
	517	selected_plot.hide_error = not current
	518
	519	plot_dict = copy.deepcopy(self.plot_dict)
	520	self.plot_dict = {}
	521
	522	# Clean the canvas
[0231f93]	523	mpl.pyplot.cla()
[aadf0af1]	524	self.ax.cla()
	525
	526	# Recreate the plots but reverse the error flag for the current
	527	for ids in plot_dict:
	528	if ids == id:
	529	self.plot(data=plot_dict[ids], hide_error=(not current))
	530	else:
	531	self.plot(data=plot_dict[ids], hide_error=plot_dict[ids].hide_error)
	532
[6d05e1d]	533	def xyTransform(self, xLabel="", yLabel=""):
	534	"""
	535	Transforms x and y in View and set the scale
	536	"""
[570a58f9]	537	# Transform all the plots on the chart
[b3e8629]	538	for id in list(self.plot_dict.keys()):
[570a58f9]	539	current_plot = self.plot_dict[id]
	540	if current_plot.id == "fit":
	541	self.removePlot(id)
	542	continue
[fed94a2]	543
[570a58f9]	544	new_xlabel, new_ylabel, xscale, yscale =\
	545	GuiUtils.xyTransform(current_plot, xLabel, yLabel)
	546	self.xscale = xscale
	547	self.yscale = yscale
[b46f285]	548
[570a58f9]	549	# Plot the updated chart
	550	self.removePlot(id)
[b46f285]	551
	552	# This assignment will wrap the label in Latex "$"
	553	self.xLabel = new_xlabel
	554	self.yLabel = new_ylabel
[04ac604]	555
	556	self.plot(data=current_plot, transform=False)
[570a58f9]	557
	558	pass # debug hook
	559
[fed94a2]	560	def onFitDisplay(self, fit_data):
	561	"""
	562	Add a linear fitting line to the chart
	563	"""
	564	# Create new data structure with fitting result
	565	tempx = fit_data[0]
	566	tempy = fit_data[1]
	567	self.fit_result.x = []
	568	self.fit_result.y = []
	569	self.fit_result.x = tempx
	570	self.fit_result.y = tempy
	571	self.fit_result.dx = None
	572	self.fit_result.dy = None
	573
	574	#Remove another Fit, if exists
[5b144c6]	575	self.removePlot("Fit")
[fed94a2]	576
	577	self.fit_result.reset_view()
	578	#self.offset_graph()
	579
	580	# Set plot properties
	581	self.fit_result.id = 'fit'
	582	self.fit_result.title = 'Fit'
	583	self.fit_result.name = 'Fit'
	584
	585	# Plot the line
[87cc73a]	586	self.plot(data=self.fit_result, marker='-', hide_error=True)
[fed94a2]	587
[3bdbfcc]	588	def onMplMouseDown(self, event):
	589	"""
	590	Left button down and ready to drag
	591	"""
	592	# Check that the LEFT button was pressed
[0268aed]	593	if event.button != 1:
	594	return
	595
	596	self.leftdown = True
	597	for text in self.textList:
	598	if text.contains(event)[0]: # If user has clicked on text
	599	self.selectedText = text
	600	return
	601	if event.inaxes is None:
	602	return
	603	try:
	604	self.x_click = float(event.xdata) # / size_x
	605	self.y_click = float(event.ydata) # / size_y
	606	except:
	607	self.position = None
[3bdbfcc]	608
[c30822c]	609	x_str = GuiUtils.formatNumber(self.x_click)
	610	y_str = GuiUtils.formatNumber(self.y_click)
	611	coord_str = "x: {}, y: {}".format(x_str, y_str)
	612	self.manager.communicator.statusBarUpdateSignal.emit(coord_str)
	613
[3bdbfcc]	614	def onMplMouseUp(self, event):
	615	"""
	616	Set the data coordinates of the click
	617	"""
	618	self.x_click = event.xdata
	619	self.y_click = event.ydata
	620
	621	# Check that the LEFT button was released
	622	if event.button == 1:
	623	self.leftdown = False
	624	self.selectedText = None
	625
	626	#release the legend
	627	if self.gotLegend == 1:
	628	self.gotLegend = 0
	629
	630	def onMplMouseMotion(self, event):
	631	"""
	632	Check if the left button is press and the mouse in moving.
	633	Compute delta for x and y coordinates and then perform the drag
	634	"""
	635	if self.gotLegend == 1 and self.leftdown:
	636	self.onLegendMotion(event)
	637	return
	638
[0268aed]	639	#if self.leftdown and self.selectedText is not None:
[9f25bce]	640	if not self.leftdown or self.selectedText is None:
[3bdbfcc]	641	return
[0268aed]	642	# User has clicked on text and is dragging
[9f25bce]	643	if event.inaxes is None:
[0268aed]	644	# User has dragged outside of axes
	645	self.selectedText = None
	646	else:
	647	# Only move text if mouse is within axes
	648	self.selectedText.set_position((event.xdata, event.ydata))
	649	self.canvas.draw_idle()
	650	return
[3bdbfcc]	651
	652	def onMplPick(self, event):
	653	"""
	654	On pick legend
	655	"""
	656	legend = self.legend
[0268aed]	657	if event.artist != legend:
	658	return
	659	# Get the box of the legend.
	660	bbox = self.legend.get_window_extent()
	661	# Get mouse coordinates at time of pick.
	662	self.mouse_x = event.mouseevent.x
	663	self.mouse_y = event.mouseevent.y
	664	# Get legend coordinates at time of pick.
	665	self.legend_x = bbox.xmin
	666	self.legend_y = bbox.ymin
	667	# Indicate we picked up the legend.
	668	self.gotLegend = 1
	669
	670	#self.legend.legendPatch.set_alpha(0.5)
[3bdbfcc]	671
	672	def onLegendMotion(self, event):
	673	"""
	674	On legend in motion
	675	"""
	676	ax = event.inaxes
[cee5c78]	677	if ax is None:
[3bdbfcc]	678	return
	679	# Event occurred inside a plotting area
	680	lo_x, hi_x = ax.get_xlim()
	681	lo_y, hi_y = ax.get_ylim()
	682	# How much the mouse moved.
	683	x = mouse_diff_x = self.mouse_x - event.x
	684	y = mouse_diff_y = self.mouse_y - event.y
	685	# Put back inside
	686	if x < lo_x:
	687	x = lo_x
	688	if x > hi_x:
	689	x = hi_x
	690	if y < lo_y:
	691	y = lo_y
	692	if y > hi_y:
	693	y = hi_y
	694	# Move the legend from its previous location by that same amount
	695	loc_in_canvas = self.legend_x - mouse_diff_x, \
	696	self.legend_y - mouse_diff_y
	697	# Transform into legend coordinate system
	698	trans_axes = self.legend.parent.transAxes.inverted()
	699	loc_in_norm_axes = trans_axes.transform_point(loc_in_canvas)
	700	self.legend_pos_loc = tuple(loc_in_norm_axes)
	701	self.legend._loc = self.legend_pos_loc
	702	self.canvas.draw_idle()
	703
	704	def onMplWheel(self, event):
	705	"""
	706	Process mouse wheel as zoom events
	707	"""
	708	ax = event.inaxes
	709	step = event.step
	710
[cee5c78]	711	if ax is not None:
[3bdbfcc]	712	# Event occurred inside a plotting area
	713	lo, hi = ax.get_xlim()
	714	lo, hi = PlotUtilities.rescale(lo, hi, step,
	715	pt=event.xdata, scale=ax.get_xscale())
	716	if not self.xscale == 'log' or lo > 0:
	717	self._scale_xlo = lo
	718	self._scale_xhi = hi
	719	ax.set_xlim((lo, hi))
	720
	721	lo, hi = ax.get_ylim()
	722	lo, hi = PlotUtilities.rescale(lo, hi, step, pt=event.ydata,
	723	scale=ax.get_yscale())
	724	if not self.yscale == 'log' or lo > 0:
	725	self._scale_ylo = lo
	726	self._scale_yhi = hi
	727	ax.set_ylim((lo, hi))
	728	else:
	729	# Check if zoom happens in the axes
	730	xdata, ydata = None, None
	731	x, y = event.x, event.y
	732
	733	for ax in self.axes:
	734	insidex, _ = ax.xaxis.contains(event)
	735	if insidex:
	736	xdata, _ = ax.transAxes.inverted().transform_point((x, y))
	737	insidey, _ = ax.yaxis.contains(event)
	738	if insidey:
	739	_, ydata = ax.transAxes.inverted().transform_point((x, y))
	740	if xdata is not None:
	741	lo, hi = ax.get_xlim()
	742	lo, hi = PlotUtilities.rescale(lo, hi, step,
	743	bal=xdata, scale=ax.get_xscale())
	744	if not self.xscale == 'log' or lo > 0:
	745	self._scale_xlo = lo
	746	self._scale_xhi = hi
	747	ax.set_xlim((lo, hi))
	748	if ydata is not None:
	749	lo, hi = ax.get_ylim()
	750	lo, hi = PlotUtilities.rescale(lo, hi, step, bal=ydata,
	751	scale=ax.get_yscale())
	752	if not self.yscale == 'log' or lo > 0:
	753	self._scale_ylo = lo
	754	self._scale_yhi = hi
	755	ax.set_ylim((lo, hi))
	756	self.canvas.draw_idle()
	757
[c4e5400]	758
[4992ff2]	759	class Plotter(QtWidgets.QDialog, PlotterWidget):
[416fa8f]	760	def __init__(self, parent=None, quickplot=False):
	761
[4992ff2]	762	QtWidgets.QDialog.__init__(self)
[aadf0af1]	763	PlotterWidget.__init__(self, parent=self, manager=parent, quickplot=quickplot)
[c4e5400]	764	icon = QtGui.QIcon()
	765	icon.addPixmap(QtGui.QPixmap(":/res/ball.ico"), QtGui.QIcon.Normal, QtGui.QIcon.Off)
	766	self.setWindowIcon(icon)
	767
[416fa8f]	768

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SasView

source: sasview/src/sas/qtgui/Plotting/Plotter.py @ 4c11b2a

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