BoxSlicer.py @ d32a594

Last change on this file since d32a594 was bf7f025, checked in by Piotr Rozyczko <piotr.rozyczko@…>, 6 years ago
Modified the box slicer group_id so it doesn't clash with circular. SASVIEW-1225
Property mode set to `100644`
File size: 16.6 KB

Line
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. = "2daverage" + self.base.data.name
188	new_plot.id = (self.averager.__name__) + self.base.data.name
189	new_plot.group_id = new_plot.id
190	new_plot.is_data = True
191	item = self._item
192	if self._item.parent() is not None:
193	item = self._item.parent()
194	GuiUtils.updateModelItemWithPlot(item, new_plot, new_plot.id)
195	self.base.manager.communicator.forcePlotDisplaySignal.emit([item, new_plot])
196
197	if self.update_model:
198	self.setModelFromParams()
199	self.draw()
200
201	def moveend(self, ev):
202	"""
203	Called after a dragging event.
204	Post the slicer new parameters and creates a new Data1D
205	corresponding to the new average
206	"""
207	self._post_data()
208
209	def restore(self):
210	"""
211	Restore the roughness for this layer.
212	"""
213	self.horizontal_lines.restore()
214	self.vertical_lines.restore()
215
216	def move(self, x, y, ev):
217	"""
218	Process move to a new position, making sure that the move is allowed.
219	"""
220	pass
221
222	def set_cursor(self, x, y):
223	pass
224
225	def getParams(self):
226	"""
227	Store a copy of values of parameters of the slicer into a dictionary.
228
229	:return params: the dictionary created
230
231	"""
232	params = {}
233	params["x_max"] = numpy.fabs(self.vertical_lines.x)
234	params["y_max"] = numpy.fabs(self.horizontal_lines.y)
235	params["nbins"] = self.nbins
236	return params
237
238	def setParams(self, params):
239	"""
240	Receive a dictionary and reset the slicer with values contained
241	in the values of the dictionary.
242
243	:param params: a dictionary containing name of slicer parameters and
244	values the user assigned to the slicer.
245	"""
246	self.x = float(numpy.fabs(params["x_max"]))
247	self.y = float(numpy.fabs(params["y_max"]))
248	self.nbins = params["nbins"]
249
250	self.horizontal_lines.update(x=self.x, y=self.y)
251	self.vertical_lines.update(x=self.x, y=self.y)
252	self.post_data(nbins=None)
253
254	def draw(self):
255	"""
256	"""
257	self.base.draw()
258
259
260	class HorizontalLines(BaseInteractor):
261	"""
262	Draw 2 Horizontal lines centered on (0,0) that can move
263	on the x- direction and in opposite direction
264	"""
265	def __init__(self, base, axes, color='black', zorder=5, x=0.5, y=0.5):
266	"""
267	"""
268	BaseInteractor.__init__(self, base, axes, color=color)
269	# Class initialization
270	self.markers = []
271	self.axes = axes
272	# Saving the end points of two lines
273	self.x = x
274	self.save_x = x
275
276	self.y = y
277	self.save_y = y
278	# Creating a marker
279	# Inner circle marker
280	self.inner_marker = self.axes.plot([0], [self.y], linestyle='',
281	marker='s', markersize=10,
282	color=self.color, alpha=0.6,
283	pickradius=5, label="pick",
284	zorder=zorder,
285	visible=True)[0]
286	# Define 2 horizontal lines
287	self.top_line = self.axes.plot([self.x, -self.x], [self.y, self.y],
288	linestyle='-', marker='',
289	color=self.color, visible=True)[0]
290	self.bottom_line = self.axes.plot([self.x, -self.x], [-self.y, -self.y],
291	linestyle='-', marker='',
292	color=self.color, visible=True)[0]
293	# Flag to check the motion of the lines
294	self.has_move = False
295	# Connecting markers to mouse events and draw
296	self.connect_markers([self.top_line, self.inner_marker])
297	self.update()
298
299	def set_layer(self, n):
300	"""
301	Allow adding plot to the same panel
302
303	:param n: the number of layer
304
305	"""
306	self.layernum = n
307	self.update()
308
309	def clear(self):
310	"""
311	Clear this slicer and its markers
312	"""
313	self.clear_markers()
314	self.inner_marker.remove()
315	self.top_line.remove()
316	self.bottom_line.remove()
317
318	def update(self, x=None, y=None):
319	"""
320	Draw the new roughness on the graph.
321
322	:param x: x-coordinates to reset current class x
323	:param y: y-coordinates to reset current class y
324
325	"""
326	# Reset x, y- coordinates if send as parameters
327	if x is not None:
328	self.x = numpy.sign(self.x) * numpy.fabs(x)
329	if y is not None:
330	self.y = numpy.sign(self.y) * numpy.fabs(y)
331	# Draw lines and markers
332	self.inner_marker.set(xdata=[0], ydata=[self.y])
333	self.top_line.set(xdata=[self.x, -self.x], ydata=[self.y, self.y])
334	self.bottom_line.set(xdata=[self.x, -self.x], ydata=[-self.y, -self.y])
335
336	def save(self, ev):
337	"""
338	Remember the roughness for this layer and the next so that we
339	can restore on Esc.
340	"""
341	self.save_x = self.x
342	self.save_y = self.y
343
344	def moveend(self, ev):
345	"""
346	Called after a dragging this edge and set self.has_move to False
347	to specify the end of dragging motion
348	"""
349	self.has_move = False
350	self.base.moveend(ev)
351
352	def restore(self):
353	"""
354	Restore the roughness for this layer.
355	"""
356	self.x = self.save_x
357	self.y = self.save_y
358
359	def move(self, x, y, ev):
360	"""
361	Process move to a new position, making sure that the move is allowed.
362	"""
363	self.y = y
364	self.has_move = True
365	self.base.base.update()
366
367
368	class VerticalLines(BaseInteractor):
369	"""
370	Select an annulus through a 2D plot
371	"""
372	def __init__(self, base, axes, color='black', zorder=5, x=0.5, y=0.5):
373	"""
374	"""
375	BaseInteractor.__init__(self, base, axes, color=color)
376	self.markers = []
377	self.axes = axes
378	self.x = numpy.fabs(x)
379	self.save_x = self.x
380	self.y = numpy.fabs(y)
381	self.save_y = y
382	# Inner circle marker
383	self.inner_marker = self.axes.plot([self.x], [0], linestyle='',
384	marker='s', markersize=10,
385	color=self.color, alpha=0.6,
386	pickradius=5, label="pick",
387	zorder=zorder, visible=True)[0]
388	self.right_line = self.axes.plot([self.x, self.x],
389	[self.y, -self.y],
390	linestyle='-', marker='',
391	color=self.color, visible=True)[0]
392	self.left_line = self.axes.plot([-self.x, -self.x],
393	[self.y, -self.y],
394	linestyle='-', marker='',
395	color=self.color, visible=True)[0]
396	self.has_move = False
397	self.connect_markers([self.right_line, self.inner_marker])
398	self.update()
399
400	def set_layer(self, n):
401	"""
402	Allow adding plot to the same panel
403
404	:param n: the number of layer
405
406	"""
407	self.layernum = n
408	self.update()
409
410	def clear(self):
411	"""
412	Clear this slicer and its markers
413	"""
414	self.clear_markers()
415	self.inner_marker.remove()
416	self.left_line.remove()
417	self.right_line.remove()
418
419	def update(self, x=None, y=None):
420	"""
421	Draw the new roughness on the graph.
422
423	:param x: x-coordinates to reset current class x
424	:param y: y-coordinates to reset current class y
425
426	"""
427	# Reset x, y -coordinates if given as parameters
428	if x is not None:
429	self.x = numpy.sign(self.x) * numpy.fabs(x)
430	if y is not None:
431	self.y = numpy.sign(self.y) * numpy.fabs(y)
432	# Draw lines and markers
433	self.inner_marker.set(xdata=[self.x], ydata=[0])
434	self.left_line.set(xdata=[-self.x, -self.x], ydata=[self.y, -self.y])
435	self.right_line.set(xdata=[self.x, self.x], ydata=[self.y, -self.y])
436
437	def save(self, ev):
438	"""
439	Remember the roughness for this layer and the next so that we
440	can restore on Esc.
441	"""
442	self.save_x = self.x
443	self.save_y = self.y
444
445	def moveend(self, ev):
446	"""
447	Called after a dragging this edge and set self.has_move to False
448	to specify the end of dragging motion
449	"""
450	self.has_move = False
451	self.base.moveend(ev)
452
453	def restore(self):
454	"""
455	Restore the roughness for this layer.
456	"""
457	self.x = self.save_x
458	self.y = self.save_y
459
460	def move(self, x, y, ev):
461	"""
462	Process move to a new position, making sure that the move is allowed.
463	"""
464	self.has_move = True
465	self.x = x
466	self.base.base.update()
467
468
469	class BoxInteractorX(BoxInteractor):
470	"""
471	Average in Qx direction
472	"""
473	def __init__(self, base, axes, item=None, color='black', zorder=3):
474	BoxInteractor.__init__(self, base, axes, item=item, color=color)
475	self.base = base
476	self._post_data()
477
478	def _post_data(self):
479	"""
480	Post data creating by averaging in Qx direction
481	"""
482	from sas.sascalc.dataloader.manipulations import SlabX
483	self.post_data(SlabX, direction="X")
484
485
486	class BoxInteractorY(BoxInteractor):
487	"""
488	Average in Qy direction
489	"""
490	def __init__(self, base, axes, item=None, color='black', zorder=3):
491	BoxInteractor.__init__(self, base, axes, item=item, color=color)
492	self.base = base
493	self._post_data()
494
495	def _post_data(self):
496	"""
497	Post data creating by averaging in Qy direction
498	"""
499	from sas.sascalc.dataloader.manipulations import SlabY
500	self.post_data(SlabY, direction="Y")
501

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source: sasview/src/sas/qtgui/Plotting/Slicers/BoxSlicer.py @ d32a594

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