1 | from PyQt4 import QtGui |
---|
2 | from PyQt4 import QtCore |
---|
3 | import functools |
---|
4 | import copy |
---|
5 | |
---|
6 | import matplotlib.pyplot as plt |
---|
7 | from matplotlib.font_manager import FontProperties |
---|
8 | |
---|
9 | from sas.sasgui.guiframe.dataFitting import Data1D |
---|
10 | from sas.qtgui.PlotterBase import PlotterBase |
---|
11 | import sas.qtgui.GuiUtils as GuiUtils |
---|
12 | from sas.qtgui.AddText import AddText |
---|
13 | from sas.qtgui.SetGraphRange import SetGraphRange |
---|
14 | from sas.qtgui.LinearFit import LinearFit |
---|
15 | |
---|
16 | class PlotterWidget(PlotterBase): |
---|
17 | """ |
---|
18 | 1D Plot widget for use with a QDialog |
---|
19 | """ |
---|
20 | def __init__(self, parent=None, manager=None, quickplot=False): |
---|
21 | super(PlotterWidget, self).__init__(parent, manager=manager, quickplot=quickplot) |
---|
22 | |
---|
23 | self.parent = parent |
---|
24 | |
---|
25 | # Dictionary of {plot_id:Data1d} |
---|
26 | self.plot_dict = {} |
---|
27 | |
---|
28 | # Simple window for data display |
---|
29 | self.txt_widget = QtGui.QTextEdit(None) |
---|
30 | # Window for text add |
---|
31 | self.addText = AddText(self) |
---|
32 | |
---|
33 | # Log-ness of the axes |
---|
34 | self.xLogLabel = "log10(x)" |
---|
35 | self.yLogLabel = "log10(y)" |
---|
36 | |
---|
37 | # Data container for the linear fit |
---|
38 | self.fit_result = Data1D(x=[], y=[], dy=None) |
---|
39 | self.fit_result.symbol = 13 |
---|
40 | self.fit_result.name = "Fit" |
---|
41 | |
---|
42 | # Add a slot for receiving update signal from LinearFit |
---|
43 | # NEW style signals |
---|
44 | #self.updatePlot = QtCore.pyqtSignal(tuple) |
---|
45 | # self.updatePlot.connect(self.onFitDisplay) |
---|
46 | # OLD style signals |
---|
47 | QtCore.QObject.connect(self, QtCore.SIGNAL('updatePlot'), self.onFitDisplay) |
---|
48 | |
---|
49 | @property |
---|
50 | def data(self): |
---|
51 | return self._data |
---|
52 | |
---|
53 | @data.setter |
---|
54 | def data(self, value): |
---|
55 | """ data setter """ |
---|
56 | self._data = value |
---|
57 | self.xLabel = "%s(%s)"%(value._xaxis, value._xunit) |
---|
58 | self.yLabel = "%s(%s)"%(value._yaxis, value._yunit) |
---|
59 | self.title(title=value.name) |
---|
60 | |
---|
61 | def plot(self, data=None, marker=None, linestyle=None, hide_error=False): |
---|
62 | """ |
---|
63 | Add a new plot of self._data to the chart. |
---|
64 | """ |
---|
65 | # Data1D |
---|
66 | if isinstance(data, Data1D): |
---|
67 | self.data = data |
---|
68 | assert(self._data) |
---|
69 | |
---|
70 | is_fit = (self._data.id=="fit") |
---|
71 | |
---|
72 | # Shortcut for the current axis |
---|
73 | ax = self.ax |
---|
74 | |
---|
75 | if marker == None: |
---|
76 | marker = 'o' |
---|
77 | |
---|
78 | if linestyle == None: |
---|
79 | linestyle = '' |
---|
80 | |
---|
81 | if not self._title: |
---|
82 | self.title(title=self.data.name) |
---|
83 | |
---|
84 | # plot data with/without errorbars |
---|
85 | if hide_error: |
---|
86 | line = ax.plot(self._data.view.x, self._data.view.y, |
---|
87 | marker=marker, |
---|
88 | linestyle=linestyle, |
---|
89 | label=self._title, |
---|
90 | picker=True) |
---|
91 | else: |
---|
92 | line = ax.errorbar(self._data.view.x, self._data.view.y, |
---|
93 | yerr=self._data.view.dy, xerr=None, |
---|
94 | capsize=2, linestyle='', |
---|
95 | barsabove=False, |
---|
96 | marker=marker, |
---|
97 | lolims=False, uplims=False, |
---|
98 | xlolims=False, xuplims=False, |
---|
99 | label=self._title, |
---|
100 | picker=True) |
---|
101 | |
---|
102 | # Update the list of data sets (plots) in chart |
---|
103 | self.plot_dict[self._data.id] = self.data |
---|
104 | |
---|
105 | # Now add the legend with some customizations. |
---|
106 | self.legend = ax.legend(loc='upper right', shadow=True) |
---|
107 | self.legend.set_picker(True) |
---|
108 | |
---|
109 | # Current labels for axes |
---|
110 | if self.y_label and not is_fit: |
---|
111 | ax.set_ylabel(self.y_label) |
---|
112 | if self.x_label and not is_fit: |
---|
113 | ax.set_xlabel(self.x_label) |
---|
114 | |
---|
115 | # Title only for regular charts |
---|
116 | if not self.quickplot and not is_fit: |
---|
117 | ax.set_title(label=self._title) |
---|
118 | |
---|
119 | # Include scaling (log vs. linear) |
---|
120 | ax.set_xscale(self.xscale) |
---|
121 | ax.set_yscale(self.yscale) |
---|
122 | |
---|
123 | # define the ranges |
---|
124 | self.setRange = SetGraphRange(parent=self, |
---|
125 | x_range=self.ax.get_xlim(), y_range=self.ax.get_ylim()) |
---|
126 | |
---|
127 | # refresh canvas |
---|
128 | self.canvas.draw() |
---|
129 | |
---|
130 | def createContextMenu(self): |
---|
131 | """ |
---|
132 | Define common context menu and associated actions for the MPL widget |
---|
133 | """ |
---|
134 | self.defaultContextMenu() |
---|
135 | |
---|
136 | # Separate plots |
---|
137 | self.addPlotsToContextMenu() |
---|
138 | |
---|
139 | # Additional menu items |
---|
140 | self.contextMenu.addSeparator() |
---|
141 | self.actionModifyGraphAppearance =\ |
---|
142 | self.contextMenu.addAction("Modify Graph Appearance") |
---|
143 | self.contextMenu.addSeparator() |
---|
144 | self.actionAddText = self.contextMenu.addAction("Add Text") |
---|
145 | self.actionRemoveText = self.contextMenu.addAction("Remove Text") |
---|
146 | self.contextMenu.addSeparator() |
---|
147 | self.actionChangeScale = self.contextMenu.addAction("Change Scale") |
---|
148 | self.contextMenu.addSeparator() |
---|
149 | self.actionSetGraphRange = self.contextMenu.addAction("Set Graph Range") |
---|
150 | self.actionResetGraphRange =\ |
---|
151 | self.contextMenu.addAction("Reset Graph Range") |
---|
152 | # Add the title change for dialogs |
---|
153 | #if self.parent: |
---|
154 | self.contextMenu.addSeparator() |
---|
155 | self.actionWindowTitle = self.contextMenu.addAction("Window Title") |
---|
156 | |
---|
157 | # Define the callbacks |
---|
158 | self.actionModifyGraphAppearance.triggered.connect(self.onModifyGraph) |
---|
159 | self.actionAddText.triggered.connect(self.onAddText) |
---|
160 | self.actionRemoveText.triggered.connect(self.onRemoveText) |
---|
161 | self.actionChangeScale.triggered.connect(self.onScaleChange) |
---|
162 | self.actionSetGraphRange.triggered.connect(self.onSetGraphRange) |
---|
163 | self.actionResetGraphRange.triggered.connect(self.onResetGraphRange) |
---|
164 | self.actionWindowTitle.triggered.connect(self.onWindowsTitle) |
---|
165 | |
---|
166 | def addPlotsToContextMenu(self): |
---|
167 | """ |
---|
168 | Adds operations on all plotted sets of data to the context menu |
---|
169 | """ |
---|
170 | for id in self.plot_dict.keys(): |
---|
171 | plot = self.plot_dict[id] |
---|
172 | name = plot.name |
---|
173 | plot_menu = self.contextMenu.addMenu('&%s' % name) |
---|
174 | |
---|
175 | self.actionDataInfo = plot_menu.addAction("&DataInfo") |
---|
176 | self.actionDataInfo.triggered.connect( |
---|
177 | functools.partial(self.onDataInfo, plot)) |
---|
178 | |
---|
179 | self.actionSavePointsAsFile = plot_menu.addAction("&Save Points as a File") |
---|
180 | self.actionSavePointsAsFile.triggered.connect( |
---|
181 | functools.partial(self.onSavePoints, plot)) |
---|
182 | plot_menu.addSeparator() |
---|
183 | |
---|
184 | if plot.id != 'fit': |
---|
185 | self.actionLinearFit = plot_menu.addAction('&Linear Fit') |
---|
186 | self.actionLinearFit.triggered.connect( |
---|
187 | functools.partial(self.onLinearFit, id)) |
---|
188 | plot_menu.addSeparator() |
---|
189 | |
---|
190 | self.actionRemovePlot = plot_menu.addAction("Remove") |
---|
191 | self.actionRemovePlot.triggered.connect( |
---|
192 | functools.partial(self.onRemovePlot, id)) |
---|
193 | |
---|
194 | if not plot.is_data: |
---|
195 | self.actionFreeze = plot_menu.addAction('&Freeze') |
---|
196 | self.actionFreeze.triggered.connect( |
---|
197 | functools.partial(self.onFreeze, id)) |
---|
198 | plot_menu.addSeparator() |
---|
199 | |
---|
200 | if plot.is_data: |
---|
201 | self.actionHideError = plot_menu.addAction("Hide Error Bar") |
---|
202 | if plot.dy is not None and plot.dy != []: |
---|
203 | if plot.hide_error: |
---|
204 | self.actionHideError.setText('Show Error Bar') |
---|
205 | else: |
---|
206 | self.actionHideError.setEnabled(False) |
---|
207 | self.actionHideError.triggered.connect( |
---|
208 | functools.partial(self.onToggleHideError, id)) |
---|
209 | plot_menu.addSeparator() |
---|
210 | |
---|
211 | self.actionModifyPlot = plot_menu.addAction('&Modify Plot Property') |
---|
212 | self.actionModifyPlot.triggered.connect(self.onModifyPlot) |
---|
213 | |
---|
214 | def createContextMenuQuick(self): |
---|
215 | """ |
---|
216 | Define context menu and associated actions for the quickplot MPL widget |
---|
217 | """ |
---|
218 | # Default actions |
---|
219 | self.defaultContextMenu() |
---|
220 | |
---|
221 | # Additional actions |
---|
222 | self.actionToggleGrid = self.contextMenu.addAction("Toggle Grid On/Off") |
---|
223 | self.contextMenu.addSeparator() |
---|
224 | self.actionChangeScale = self.contextMenu.addAction("Change Scale") |
---|
225 | |
---|
226 | # Define the callbacks |
---|
227 | self.actionToggleGrid.triggered.connect(self.onGridToggle) |
---|
228 | self.actionChangeScale.triggered.connect(self.onScaleChange) |
---|
229 | |
---|
230 | def onScaleChange(self): |
---|
231 | """ |
---|
232 | Show a dialog allowing axes rescaling |
---|
233 | """ |
---|
234 | if self.properties.exec_() == QtGui.QDialog.Accepted: |
---|
235 | self.xLogLabel, self.yLogLabel = self.properties.getValues() |
---|
236 | self.xyTransform(self.xLogLabel, self.yLogLabel) |
---|
237 | |
---|
238 | def onModifyGraph(self): |
---|
239 | """ |
---|
240 | Show a dialog allowing chart manipulations |
---|
241 | """ |
---|
242 | print ("onModifyGraph") |
---|
243 | pass |
---|
244 | |
---|
245 | def onAddText(self): |
---|
246 | """ |
---|
247 | Show a dialog allowing adding custom text to the chart |
---|
248 | """ |
---|
249 | if self.addText.exec_() == QtGui.QDialog.Accepted: |
---|
250 | # Retrieve the new text, its font and color |
---|
251 | extra_text = self.addText.text() |
---|
252 | extra_font = self.addText.font() |
---|
253 | extra_color = self.addText.color() |
---|
254 | |
---|
255 | # Place the text on the screen at (0,0) |
---|
256 | pos_x = self.x_click |
---|
257 | pos_y = self.y_click |
---|
258 | |
---|
259 | # Map QFont onto MPL font |
---|
260 | mpl_font = FontProperties() |
---|
261 | mpl_font.set_size(int(extra_font.pointSize())) |
---|
262 | mpl_font.set_family(str(extra_font.family())) |
---|
263 | mpl_font.set_weight(int(extra_font.weight())) |
---|
264 | # MPL style names |
---|
265 | styles = ['normal', 'italic', 'oblique'] |
---|
266 | # QFont::Style maps directly onto the above |
---|
267 | try: |
---|
268 | mpl_font.set_style(styles[extra_font.style()]) |
---|
269 | except: |
---|
270 | pass |
---|
271 | |
---|
272 | if len(extra_text) > 0: |
---|
273 | new_text = self.ax.text(str(pos_x), |
---|
274 | str(pos_y), |
---|
275 | extra_text, |
---|
276 | color=extra_color, |
---|
277 | fontproperties=mpl_font) |
---|
278 | # Update the list of annotations |
---|
279 | self.textList.append(new_text) |
---|
280 | self.canvas.draw_idle() |
---|
281 | |
---|
282 | def onRemoveText(self): |
---|
283 | """ |
---|
284 | Remove the most recently added text |
---|
285 | """ |
---|
286 | num_text = len(self.textList) |
---|
287 | if num_text < 1: |
---|
288 | return |
---|
289 | txt = self.textList[num_text - 1] |
---|
290 | text_remove = txt.get_text() |
---|
291 | txt.remove() |
---|
292 | self.textList.remove(txt) |
---|
293 | |
---|
294 | self.canvas.draw_idle() |
---|
295 | |
---|
296 | def onSetGraphRange(self): |
---|
297 | """ |
---|
298 | Show a dialog allowing setting the chart ranges |
---|
299 | """ |
---|
300 | # min and max of data |
---|
301 | if self.setRange.exec_() == QtGui.QDialog.Accepted: |
---|
302 | x_range = self.setRange.xrange() |
---|
303 | y_range = self.setRange.yrange() |
---|
304 | if x_range is not None and y_range is not None: |
---|
305 | self.ax.set_xlim(x_range) |
---|
306 | self.ax.set_ylim(y_range) |
---|
307 | self.canvas.draw_idle() |
---|
308 | |
---|
309 | def onResetGraphRange(self): |
---|
310 | """ |
---|
311 | Resets the chart X and Y ranges to their original values |
---|
312 | """ |
---|
313 | x_range = (self.data.x.min(), self.data.x.max()) |
---|
314 | y_range = (self.data.y.min(), self.data.y.max()) |
---|
315 | if x_range is not None and y_range is not None: |
---|
316 | self.ax.set_xlim(x_range) |
---|
317 | self.ax.set_ylim(y_range) |
---|
318 | self.canvas.draw_idle() |
---|
319 | |
---|
320 | def onDataInfo(self, plot_data): |
---|
321 | """ |
---|
322 | Displays data info text window for the selected plot |
---|
323 | """ |
---|
324 | text_to_show = GuiUtils.retrieveData1d(plot_data) |
---|
325 | # Hardcoded sizes to enable full width rendering with default font |
---|
326 | self.txt_widget.resize(420,600) |
---|
327 | |
---|
328 | self.txt_widget.setReadOnly(True) |
---|
329 | self.txt_widget.setWindowFlags(QtCore.Qt.Window) |
---|
330 | self.txt_widget.setWindowIcon(QtGui.QIcon(":/res/ball.ico")) |
---|
331 | self.txt_widget.setWindowTitle("Data Info: %s" % plot_data.filename) |
---|
332 | self.txt_widget.insertPlainText(text_to_show) |
---|
333 | |
---|
334 | self.txt_widget.show() |
---|
335 | # Move the slider all the way up, if present |
---|
336 | vertical_scroll_bar = self.txt_widget.verticalScrollBar() |
---|
337 | vertical_scroll_bar.triggerAction(QtGui.QScrollBar.SliderToMinimum) |
---|
338 | |
---|
339 | def onSavePoints(self, plot_data): |
---|
340 | """ |
---|
341 | Saves plot data to a file |
---|
342 | """ |
---|
343 | GuiUtils.saveData1D(plot_data) |
---|
344 | |
---|
345 | def onLinearFit(self, id): |
---|
346 | """ |
---|
347 | Creates and displays a simple linear fit for the selected plot |
---|
348 | """ |
---|
349 | selected_plot = self.plot_dict[id] |
---|
350 | |
---|
351 | maxrange = (min(selected_plot.x), max(selected_plot.x)) |
---|
352 | fitrange = self.ax.get_xlim() |
---|
353 | |
---|
354 | fit_dialog = LinearFit(parent=self, |
---|
355 | data=selected_plot, |
---|
356 | max_range=maxrange, |
---|
357 | fit_range=fitrange, |
---|
358 | xlabel=self.xLogLabel, |
---|
359 | ylabel=self.yLogLabel) |
---|
360 | if fit_dialog.exec_() == QtGui.QDialog.Accepted: |
---|
361 | return |
---|
362 | |
---|
363 | def onRemovePlot(self, id): |
---|
364 | """ |
---|
365 | Responds to the plot delete action |
---|
366 | """ |
---|
367 | self.removePlot(id) |
---|
368 | |
---|
369 | if len(self.plot_dict) == 0: |
---|
370 | # last plot: graph is empty must be the panel must be destroyed |
---|
371 | self.parent.close() |
---|
372 | |
---|
373 | def removePlot(self, id): |
---|
374 | """ |
---|
375 | Deletes the selected plot from the chart |
---|
376 | """ |
---|
377 | if id not in self.plot_dict: |
---|
378 | return |
---|
379 | |
---|
380 | selected_plot = self.plot_dict[id] |
---|
381 | |
---|
382 | plot_dict = copy.deepcopy(self.plot_dict) |
---|
383 | |
---|
384 | self.plot_dict = {} |
---|
385 | |
---|
386 | plt.cla() |
---|
387 | self.ax.cla() |
---|
388 | |
---|
389 | for ids in plot_dict: |
---|
390 | if ids != id: |
---|
391 | self.plot(data=plot_dict[ids], hide_error=plot_dict[ids].hide_error) |
---|
392 | |
---|
393 | def onFreeze(self, id): |
---|
394 | """ |
---|
395 | Freezes the selected plot to a separate chart |
---|
396 | """ |
---|
397 | plot = self.plot_dict[id] |
---|
398 | self.manager.add_data(data_list=[plot]) |
---|
399 | |
---|
400 | def onModifyPlot(self): |
---|
401 | """ |
---|
402 | Allows for MPL modifications to the selected plot |
---|
403 | """ |
---|
404 | pass |
---|
405 | |
---|
406 | def onToggleHideError(self, id): |
---|
407 | """ |
---|
408 | Toggles hide error/show error menu item |
---|
409 | """ |
---|
410 | selected_plot = self.plot_dict[id] |
---|
411 | current = selected_plot.hide_error |
---|
412 | |
---|
413 | # Flip the flag |
---|
414 | selected_plot.hide_error = not current |
---|
415 | |
---|
416 | plot_dict = copy.deepcopy(self.plot_dict) |
---|
417 | self.plot_dict = {} |
---|
418 | |
---|
419 | # Clean the canvas |
---|
420 | plt.cla() |
---|
421 | self.ax.cla() |
---|
422 | |
---|
423 | # Recreate the plots but reverse the error flag for the current |
---|
424 | for ids in plot_dict: |
---|
425 | if ids == id: |
---|
426 | self.plot(data=plot_dict[ids], hide_error=(not current)) |
---|
427 | else: |
---|
428 | self.plot(data=plot_dict[ids], hide_error=plot_dict[ids].hide_error) |
---|
429 | |
---|
430 | def xyTransform(self, xLabel="", yLabel=""): |
---|
431 | """ |
---|
432 | Transforms x and y in View and set the scale |
---|
433 | """ |
---|
434 | # Transform all the plots on the chart |
---|
435 | for id in self.plot_dict.keys(): |
---|
436 | current_plot = self.plot_dict[id] |
---|
437 | if current_plot.id == "fit": |
---|
438 | self.removePlot(id) |
---|
439 | continue |
---|
440 | |
---|
441 | new_xlabel, new_ylabel, xscale, yscale =\ |
---|
442 | GuiUtils.xyTransform(current_plot, xLabel, yLabel) |
---|
443 | self.xscale = xscale |
---|
444 | self.yscale = yscale |
---|
445 | self.xLabel = new_xlabel |
---|
446 | self.yLabel = new_ylabel |
---|
447 | # Plot the updated chart |
---|
448 | self.removePlot(id) |
---|
449 | self.plot(data=current_plot, marker='o', linestyle='') |
---|
450 | |
---|
451 | pass # debug hook |
---|
452 | |
---|
453 | def onFitDisplay(self, fit_data): |
---|
454 | """ |
---|
455 | Add a linear fitting line to the chart |
---|
456 | """ |
---|
457 | # Create new data structure with fitting result |
---|
458 | tempx = fit_data[0] |
---|
459 | tempy = fit_data[1] |
---|
460 | self.fit_result.x = [] |
---|
461 | self.fit_result.y = [] |
---|
462 | self.fit_result.x = tempx |
---|
463 | self.fit_result.y = tempy |
---|
464 | self.fit_result.dx = None |
---|
465 | self.fit_result.dy = None |
---|
466 | |
---|
467 | #Remove another Fit, if exists |
---|
468 | self.removePlot("fit") |
---|
469 | |
---|
470 | self.fit_result.reset_view() |
---|
471 | #self.offset_graph() |
---|
472 | |
---|
473 | # Set plot properties |
---|
474 | self.fit_result.id = 'fit' |
---|
475 | self.fit_result.title = 'Fit' |
---|
476 | self.fit_result.name = 'Fit' |
---|
477 | |
---|
478 | # Plot the line |
---|
479 | self.plot(data=self.fit_result, marker='', linestyle='solid', hide_error=True) |
---|
480 | |
---|
481 | |
---|
482 | class Plotter(QtGui.QDialog, PlotterWidget): |
---|
483 | def __init__(self, parent=None, quickplot=False): |
---|
484 | |
---|
485 | QtGui.QDialog.__init__(self) |
---|
486 | PlotterWidget.__init__(self, parent=self, manager=parent, quickplot=quickplot) |
---|
487 | icon = QtGui.QIcon() |
---|
488 | icon.addPixmap(QtGui.QPixmap(":/res/ball.ico"), QtGui.QIcon.Normal, QtGui.QIcon.Off) |
---|
489 | self.setWindowIcon(icon) |
---|
490 | |
---|
491 | |
---|