BoxSlicer.py @ 5a2bb75

Last change on this file since 5a2bb75 was e20870bc, checked in by Piotr Rozyczko <rozyczko@…>, 6 years ago
Masking dialog for fitting
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1	import numpy
2
3	from sas.qtgui.Plotting.Slicers.BaseInteractor import BaseInteractor
4	from sas.qtgui.Plotting.PlotterData import Data1D
5	import sas.qtgui.Utilities.GuiUtils as GuiUtils
6	from sas.qtgui.Plotting.SlicerModel import SlicerModel
7
8
9	class BoxInteractor(BaseInteractor, SlicerModel):
10	"""
11	BoxInteractor define a rectangle that return data1D average of Data2D
12	in a rectangle area defined by -x, x ,y, -y
13	"""
14	def __init__(self, base, axes, item=None, color='black', zorder=3):
15	BaseInteractor.__init__(self, base, axes, color=color)
16	SlicerModel.__init__(self)
17	# Class initialization
18	self.markers = []
19	self.axes = axes
20	self._item = item
21	#connecting artist
22	self.connect = self.base.connect
23	# which direction is the preferred interaction direction
24	self.direction = None
25	# determine x y values
26	self.x = 0.5 * min(numpy.fabs(self.base.data.xmax),
27	numpy.fabs(self.base.data.xmin))
28	self.y = 0.5 * min(numpy.fabs(self.base.data.xmax),
29	numpy.fabs(self.base.data.xmin))
30	# when reach qmax reset the graph
31	self.qmax = max(self.base.data.xmax, self.base.data.xmin,
32	self.base.data.ymax, self.base.data.ymin)
33	# Number of points on the plot
34	self.nbins = 30
35	# If True, I(\|Q\|) will be return, otherwise,
36	# negative q-values are allowed
37	self.fold = True
38	# reference of the current Slab averaging
39	self.averager = None
40	# Create vertical and horizaontal lines for the rectangle
41	self.vertical_lines = VerticalLines(self,
42	self.axes,
43	color='blue',
44	zorder=zorder,
45	y=self.y,
46	x=self.x)
47	self.vertical_lines.qmax = self.qmax
48
49	self.horizontal_lines = HorizontalLines(self,
50	self.axes,
51	color='green',
52	zorder=zorder,
53	x=self.x,
54	y=self.y)
55	self.horizontal_lines.qmax = self.qmax
56	# draw the rectangle and plost the data 1D resulting
57	# of averaging data2D
58	self.update()
59	self._post_data()
60	self.setModelFromParams()
61
62	def update_and_post(self):
63	"""
64	Update the slicer and plot the resulting data
65	"""
66	self.update()
67	self._post_data()
68
69	def set_layer(self, n):
70	"""
71	Allow adding plot to the same panel
72
73	:param n: the number of layer
74
75	"""
76	self.layernum = n
77	self.update()
78
79	def clear(self):
80	"""
81	Clear the slicer and all connected events related to this slicer
82	"""
83	self.averager = None
84	self.clear_markers()
85	self.horizontal_lines.clear()
86	self.vertical_lines.clear()
87	self.base.connect.clearall()
88
89	def update(self):
90	"""
91	Respond to changes in the model by recalculating the profiles and
92	resetting the widgets.
93	"""
94	# #Update the slicer if an horizontal line is dragged
95	if self.horizontal_lines.has_move:
96	self.horizontal_lines.update()
97	self.vertical_lines.update(y=self.horizontal_lines.y)
98	# #Update the slicer if a vertical line is dragged
99	if self.vertical_lines.has_move:
100	self.vertical_lines.update()
101	self.horizontal_lines.update(x=self.vertical_lines.x)
102
103	def save(self, ev):
104	"""
105	Remember the roughness for this layer and the next so that we
106	can restore on Esc.
107	"""
108	self.vertical_lines.save(ev)
109	self.horizontal_lines.save(ev)
110
111	def _post_data(self):
112	pass
113
114	def post_data(self, new_slab=None, nbins=None, direction=None):
115	"""
116	post data averaging in Qx or Qy given new_slab type
117
118	:param new_slab: slicer that determine with direction to average
119	:param nbins: the number of points plotted when averaging
120	:param direction: the direction of averaging
121
122	"""
123	if self.direction is None:
124	self.direction = direction
125
126	x_min = -1 * numpy.fabs(self.vertical_lines.x)
127	x_max = numpy.fabs(self.vertical_lines.x)
128	y_min = -1 * numpy.fabs(self.horizontal_lines.y)
129	y_max = numpy.fabs(self.horizontal_lines.y)
130
131	if nbins is not None:
132	self.nbins = nbins
133	if self.averager is None:
134	if new_slab is None:
135	msg = "post data:cannot average , averager is empty"
136	raise ValueError(msg)
137	self.averager = new_slab
138	if self.direction == "X":
139	if self.fold:
140	x_low = 0
141	else:
142	x_low = numpy.fabs(x_min)
143	bin_width = (x_max + x_low) / self.nbins
144	elif self.direction == "Y":
145	if self.fold:
146	y_low = 0
147	else:
148	y_low = numpy.fabs(y_min)
149	bin_width = (y_max + y_low) / self.nbins
150	else:
151	msg = "post data:no Box Average direction was supplied"
152	raise ValueError(msg)
153	# # Average data2D given Qx or Qy
154	box = self.averager(x_min=x_min, x_max=x_max, y_min=y_min, y_max=y_max,
155	bin_width=bin_width)
156	box.fold = self.fold
157	boxavg = box(self.base.data)
158	# 3 Create Data1D to plot
159	if hasattr(boxavg, "dxl"):
160	dxl = boxavg.dxl
161	else:
162	dxl = None
163	if hasattr(boxavg, "dxw"):
164	dxw = boxavg.dxw
165	else:
166	dxw = None
167	new_plot = Data1D(x=boxavg.x, y=boxavg.y, dy=boxavg.dy)
168	new_plot.dxl = dxl
169	new_plot.dxw = dxw
170	new_plot.name = str(self.averager.__name__) + \
171	"(" + self.base.data.name + ")"
172	new_plot.title = str(self.averager.__name__) + \
173	"(" + self.base.data.name + ")"
174	new_plot.source = self.base.data.source
175	new_plot.interactive = True
176	new_plot.detector = self.base.data.detector
177	# # If the data file does not tell us what the axes are, just assume...
178	new_plot.xaxis("\\rm{Q}", "A^{-1}")
179	new_plot.yaxis("\\rm{Intensity} ", "cm^{-1}")
180
181	data = self.base.data
182	if hasattr(data, "scale") and data.scale == 'linear' and \
183	self.base.data.name.count("Residuals") > 0:
184	new_plot.ytransform = 'y'
185	new_plot.yaxis("\\rm{Residuals} ", "/")
186
187	new_plot.group_id = "2daverage" + self.base.data.name
188	new_plot.id = (self.averager.__name__) + self.base.data.name
189	new_plot.is_data = True
190	GuiUtils.updateModelItemWithPlot(self._item, new_plot, new_plot.id)
191
192	if self.update_model:
193	self.setModelFromParams()
194	self.draw()
195
196	def moveend(self, ev):
197	"""
198	Called after a dragging event.
199	Post the slicer new parameters and creates a new Data1D
200	corresponding to the new average
201	"""
202	self._post_data()
203
204	def restore(self):
205	"""
206	Restore the roughness for this layer.
207	"""
208	self.horizontal_lines.restore()
209	self.vertical_lines.restore()
210
211	def move(self, x, y, ev):
212	"""
213	Process move to a new position, making sure that the move is allowed.
214	"""
215	pass
216
217	def set_cursor(self, x, y):
218	pass
219
220	def getParams(self):
221	"""
222	Store a copy of values of parameters of the slicer into a dictionary.
223
224	:return params: the dictionary created
225
226	"""
227	params = {}
228	params["x_max"] = numpy.fabs(self.vertical_lines.x)
229	params["y_max"] = numpy.fabs(self.horizontal_lines.y)
230	params["nbins"] = self.nbins
231	return params
232
233	def setParams(self, params):
234	"""
235	Receive a dictionary and reset the slicer with values contained
236	in the values of the dictionary.
237
238	:param params: a dictionary containing name of slicer parameters and
239	values the user assigned to the slicer.
240	"""
241	self.x = float(numpy.fabs(params["x_max"]))
242	self.y = float(numpy.fabs(params["y_max"]))
243	self.nbins = params["nbins"]
244
245	self.horizontal_lines.update(x=self.x, y=self.y)
246	self.vertical_lines.update(x=self.x, y=self.y)
247	self.post_data(nbins=None)
248
249	def draw(self):
250	"""
251	"""
252	self.base.draw()
253
254
255	class HorizontalLines(BaseInteractor):
256	"""
257	Draw 2 Horizontal lines centered on (0,0) that can move
258	on the x- direction and in opposite direction
259	"""
260	def __init__(self, base, axes, color='black', zorder=5, x=0.5, y=0.5):
261	"""
262	"""
263	BaseInteractor.__init__(self, base, axes, color=color)
264	# Class initialization
265	self.markers = []
266	self.axes = axes
267	# Saving the end points of two lines
268	self.x = x
269	self.save_x = x
270
271	self.y = y
272	self.save_y = y
273	# Creating a marker
274	# Inner circle marker
275	self.inner_marker = self.axes.plot([0], [self.y], linestyle='',
276	marker='s', markersize=10,
277	color=self.color, alpha=0.6,
278	pickradius=5, label="pick",
279	zorder=zorder,
280	visible=True)[0]
281	# Define 2 horizontal lines
282	self.top_line = self.axes.plot([self.x, -self.x], [self.y, self.y],
283	linestyle='-', marker='',
284	color=self.color, visible=True)[0]
285	self.bottom_line = self.axes.plot([self.x, -self.x], [-self.y, -self.y],
286	linestyle='-', marker='',
287	color=self.color, visible=True)[0]
288	# Flag to check the motion of the lines
289	self.has_move = False
290	# Connecting markers to mouse events and draw
291	self.connect_markers([self.top_line, self.inner_marker])
292	self.update()
293
294	def set_layer(self, n):
295	"""
296	Allow adding plot to the same panel
297
298	:param n: the number of layer
299
300	"""
301	self.layernum = n
302	self.update()
303
304	def clear(self):
305	"""
306	Clear this slicer and its markers
307	"""
308	self.clear_markers()
309	self.inner_marker.remove()
310	self.top_line.remove()
311	self.bottom_line.remove()
312
313	def update(self, x=None, y=None):
314	"""
315	Draw the new roughness on the graph.
316
317	:param x: x-coordinates to reset current class x
318	:param y: y-coordinates to reset current class y
319
320	"""
321	# Reset x, y- coordinates if send as parameters
322	if x is not None:
323	self.x = numpy.sign(self.x) * numpy.fabs(x)
324	if y is not None:
325	self.y = numpy.sign(self.y) * numpy.fabs(y)
326	# Draw lines and markers
327	self.inner_marker.set(xdata=[0], ydata=[self.y])
328	self.top_line.set(xdata=[self.x, -self.x], ydata=[self.y, self.y])
329	self.bottom_line.set(xdata=[self.x, -self.x], ydata=[-self.y, -self.y])
330
331	def save(self, ev):
332	"""
333	Remember the roughness for this layer and the next so that we
334	can restore on Esc.
335	"""
336	self.save_x = self.x
337	self.save_y = self.y
338
339	def moveend(self, ev):
340	"""
341	Called after a dragging this edge and set self.has_move to False
342	to specify the end of dragging motion
343	"""
344	self.has_move = False
345	self.base.moveend(ev)
346
347	def restore(self):
348	"""
349	Restore the roughness for this layer.
350	"""
351	self.x = self.save_x
352	self.y = self.save_y
353
354	def move(self, x, y, ev):
355	"""
356	Process move to a new position, making sure that the move is allowed.
357	"""
358	self.y = y
359	self.has_move = True
360	self.base.base.update()
361
362
363	class VerticalLines(BaseInteractor):
364	"""
365	Select an annulus through a 2D plot
366	"""
367	def __init__(self, base, axes, color='black', zorder=5, x=0.5, y=0.5):
368	"""
369	"""
370	BaseInteractor.__init__(self, base, axes, color=color)
371	self.markers = []
372	self.axes = axes
373	self.x = numpy.fabs(x)
374	self.save_x = self.x
375	self.y = numpy.fabs(y)
376	self.save_y = y
377	# Inner circle marker
378	self.inner_marker = self.axes.plot([self.x], [0], linestyle='',
379	marker='s', markersize=10,
380	color=self.color, alpha=0.6,
381	pickradius=5, label="pick",
382	zorder=zorder, visible=True)[0]
383	self.right_line = self.axes.plot([self.x, self.x],
384	[self.y, -self.y],
385	linestyle='-', marker='',
386	color=self.color, visible=True)[0]
387	self.left_line = self.axes.plot([-self.x, -self.x],
388	[self.y, -self.y],
389	linestyle='-', marker='',
390	color=self.color, visible=True)[0]
391	self.has_move = False
392	self.connect_markers([self.right_line, self.inner_marker])
393	self.update()
394
395	def set_layer(self, n):
396	"""
397	Allow adding plot to the same panel
398
399	:param n: the number of layer
400
401	"""
402	self.layernum = n
403	self.update()
404
405	def clear(self):
406	"""
407	Clear this slicer and its markers
408	"""
409	self.clear_markers()
410	self.inner_marker.remove()
411	self.left_line.remove()
412	self.right_line.remove()
413
414	def update(self, x=None, y=None):
415	"""
416	Draw the new roughness on the graph.
417
418	:param x: x-coordinates to reset current class x
419	:param y: y-coordinates to reset current class y
420
421	"""
422	# Reset x, y -coordinates if given as parameters
423	if x is not None:
424	self.x = numpy.sign(self.x) * numpy.fabs(x)
425	if y is not None:
426	self.y = numpy.sign(self.y) * numpy.fabs(y)
427	# Draw lines and markers
428	self.inner_marker.set(xdata=[self.x], ydata=[0])
429	self.left_line.set(xdata=[-self.x, -self.x], ydata=[self.y, -self.y])
430	self.right_line.set(xdata=[self.x, self.x], ydata=[self.y, -self.y])
431
432	def save(self, ev):
433	"""
434	Remember the roughness for this layer and the next so that we
435	can restore on Esc.
436	"""
437	self.save_x = self.x
438	self.save_y = self.y
439
440	def moveend(self, ev):
441	"""
442	Called after a dragging this edge and set self.has_move to False
443	to specify the end of dragging motion
444	"""
445	self.has_move = False
446	self.base.moveend(ev)
447
448	def restore(self):
449	"""
450	Restore the roughness for this layer.
451	"""
452	self.x = self.save_x
453	self.y = self.save_y
454
455	def move(self, x, y, ev):
456	"""
457	Process move to a new position, making sure that the move is allowed.
458	"""
459	self.has_move = True
460	self.x = x
461	self.base.base.update()
462
463
464	class BoxInteractorX(BoxInteractor):
465	"""
466	Average in Qx direction
467	"""
468	def __init__(self, base, axes, item=None, color='black', zorder=3):
469	BoxInteractor.__init__(self, base, axes, item=item, color=color)
470	self.base = base
471	self._post_data()
472
473	def _post_data(self):
474	"""
475	Post data creating by averaging in Qx direction
476	"""
477	from sas.sascalc.dataloader.manipulations import SlabX
478	self.post_data(SlabX, direction="X")
479
480
481	class BoxInteractorY(BoxInteractor):
482	"""
483	Average in Qy direction
484	"""
485	def __init__(self, base, axes, item=None, color='black', zorder=3):
486	BoxInteractor.__init__(self, base, axes, item=item, color=color)
487	self.base = base
488	self._post_data()
489
490	def _post_data(self):
491	"""
492	Post data creating by averaging in Qy direction
493	"""
494	from sas.sascalc.dataloader.manipulations import SlabY
495	self.post_data(SlabY, direction="Y")
496

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source: sasview/src/sas/qtgui/Plotting/Slicers/BoxSlicer.py @ 5a2bb75

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