SectorSlicer.py @ 9dd261e

ESS_GUIESS_GUI_DocsESS_GUI_batch_fittingESS_GUI_bumps_abstractionESS_GUI_iss1116ESS_GUI_iss879ESS_GUI_iss959ESS_GUI_openclESS_GUI_orderingESS_GUI_sync_sascalccostrafo411magnetic_scattrelease-4.1.1release-4.1.2release-4.2.2release_4.0.1ticket-1009ticket-1094-headlessticket-1242-2d-resolutionticket-1243ticket-1249ticket885unittest-saveload

Last change on this file since 9dd261e was 4ac8556, checked in by Gervaise Alina <gervyh@…>, 16 years ago
change on data_loader
Property mode set to `100644`
File size: 22.2 KB

Line
1	#TODO: the line slicer should listen to all 2DREFRESH events, get the data and slice it
2	# before pushing a new 1D data update.
3
4	#
5	#TODO: NEED MAJOR REFACTOR
6	#
7
8
9	# Debug printout
10	import math
11	import wx
12	from copy import deepcopy
13
14	from BaseInteractor import _BaseInteractor
15	from sans.guicomm.events import NewPlotEvent, StatusEvent
16	from sans.guicomm.events import SlicerParameterEvent,EVT_SLICER_PARS
17
18	from sans.guiframe.dataFitting import Data1D
19
20	class SectorInteractor(_BaseInteractor):
21	"""
22	Draw a sector slicer.Allow to performQ averaging on data 2D
23	"""
24	def __init__(self,base,axes,color='black', zorder=3):
25
26	_BaseInteractor.__init__(self, base, axes, color=color)
27	## Class initialization
28	self.markers = []
29	self.axes = axes
30	## connect the plot to event
31	self.connect = self.base.connect
32
33	## compute qmax limit to reset the graph
34	x = math.pow(max(self.base.data2D.xmax,math.fabs(self.base.data2D.xmin)),2)
35	y = math.pow(max(self.base.data2D.ymax,math.fabs(self.base.data2D.ymin)),2)
36	self.qmax= math.sqrt(x + y)
37	## Number of points on the plot
38	self.nbins = 20
39	## Angle of the middle line
40	self.theta2= math.pi/3
41	## Absolute value of the Angle between the middle line and any side line
42	self.phi=math.pi/12
43
44	## Middle line
45	self.main_line = LineInteractor(self, self.base.subplot,color='blue', zorder=zorder, r=self.qmax,
46	theta= self.theta2)
47	self.main_line.qmax = self.qmax
48	## Right Side line
49	self.right_line= SideInteractor(self, self.base.subplot,color='black', zorder=zorder,
50	r=self.qmax,
51	phi= -1*self.phi,
52	theta2=self.theta2)
53	self.right_line.qmax = self.qmax
54	## Left Side line
55	self.left_line= SideInteractor(self, self.base.subplot,color='black', zorder=zorder,
56	r=self.qmax,
57	phi= self.phi,
58	theta2=self.theta2)
59	self.left_line.qmax = self.qmax
60	## draw the sector
61	self.update()
62	self._post_data()
63
64	## Bind to slice parameter events
65	self.base.Bind(EVT_SLICER_PARS, self._onEVT_SLICER_PARS)
66
67
68	def _onEVT_SLICER_PARS(self, event):
69	"""
70	receive an event containing parameters values to reset the slicer
71	@param event: event of type SlicerParameterEvent with params as
72	attribute
73	"""
74	wx.PostEvent(self.base.parent, StatusEvent(status="SectorSlicer._onEVT_SLICER_PARS"))
75	event.Skip()
76	if event.type == self.__class__.__name__:
77	self.set_params(event.params)
78	self.base.update()
79
80
81	def set_layer(self, n):
82	"""
83	Allow adding plot to the same panel
84	@param n: the number of layer
85	"""
86	self.layernum = n
87	self.update()
88
89
90	def clear(self):
91	"""
92	Clear the slicer and all connected events related to this slicer
93	"""
94	self.clear_markers()
95	self.main_line.clear()
96	self.left_line.clear()
97	self.right_line.clear()
98	self.base.connect.clearall()
99	self.base.Unbind(EVT_SLICER_PARS)
100
101
102	def update(self):
103	"""
104	Respond to changes in the model by recalculating the profiles and
105	resetting the widgets.
106	"""
107	# Update locations
108	## Check if the middle line was dragged and update the picture accordingly
109	if self.main_line.has_move:
110	self.main_line.update()
111	self.right_line.update( delta= -self.left_line.phi/2,
112	mline= self.main_line.theta )
113	self.left_line.update( delta = self.left_line.phi/2,
114	mline= self.main_line.theta )
115	## Check if the left side has moved and update the slicer accordingly
116	if self.left_line.has_move:
117	self.main_line.update()
118	self.left_line.update( phi=None, delta=None, mline=self.main_line ,
119	side=True, left=True )
120	self.right_line.update( phi= self.left_line.phi, delta= None,
121	mline= self.main_line, side= True,
122	left=False, right= True )
123	## Check if the right side line has moved and update the slicer accordingly
124	if self.right_line.has_move:
125	self.main_line.update()
126	self.right_line.update( phi=None, delta=None, mline=self.main_line,
127	side=True, left=False, right=True )
128	self.left_line.update( phi=self.right_line.phi, delta=None,
129	mline=self.main_line, side=True, left=False )
130
131
132	def save(self, ev):
133	"""
134	Remember the roughness for this layer and the next so that we
135	can restore on Esc.
136	"""
137	self.base.freeze_axes()
138	self.main_line.save(ev)
139	self.right_line.save(ev)
140	self.left_line.save(ev)
141
142	def _post_data(self, nbins=None):
143	"""
144	compute sector averaging of data2D into data1D
145	@param nbins: the number of point to plot for the average 1D data
146	"""
147	## get the data2D to average
148	data = self.base.data2D
149	# If we have no data, just return
150	if data == None:
151	return
152	## Averaging
153	from DataLoader.manipulations import SectorQ
154	radius = self.qmax
155	phimin = -self.left_line.phi + self.main_line.theta
156	phimax = self.left_line.phi + self.main_line.theta
157
158	if nbins==None:
159	nbins = 20
160	sect = SectorQ(r_min= 0.0, r_max= radius ,
161	phi_min= phimin + math.pi,
162	phi_max= phimax + math.pi, nbins=nbins)
163
164	sector = sect(self.base.data2D)
165	##Create 1D data resulting from average
166
167	if hasattr(sector,"dxl"):
168	dxl= sector.dxl
169	else:
170	dxl= None
171	if hasattr(sector,"dxw"):
172	dxw= sector.dxw
173	else:
174	dxw= None
175
176	new_plot = Data1D(x=sector.x,y=sector.y,dy=sector.dy)
177	new_plot.dxl = dxl
178	new_plot.dxw = dxw
179	new_plot.name = "SectorQ" +"("+ self.base.data2D.name+")"
180
181	new_plot.source=self.base.data2D.source
182	#new_plot.info=self.base.data2D.info
183	new_plot.interactive = True
184	new_plot.detector =self.base.data2D.detector
185	# If the data file does not tell us what the axes are, just assume...
186	new_plot.xaxis("\\rm{Q}", 'A^{-1}')
187	new_plot.yaxis("\\rm{Intensity} ","cm^{-1}")
188	new_plot.group_id = "SectorQ"+self.base.data2D.name
189	new_plot.id = "SectorQ"+self.base.data2D.name
190	new_plot.is_data= True
191	wx.PostEvent(self.base.parent, NewPlotEvent(plot=new_plot,
192	title="SectorQ"+self.base.data2D.name ))
193
194
195
196	def moveend(self, ev):
197	"""
198	Called a dragging motion ends.Get slicer event
199	"""
200	self.base.thaw_axes()
201	## Post parameters
202	event = SlicerParameterEvent()
203	event.type = self.__class__.__name__
204	event.params = self.get_params()
205	## Send slicer paramers to plotter2D
206	wx.PostEvent(self.base, event)
207	self._post_data()
208
209
210	def restore(self):
211	"""
212	Restore the roughness for this layer.
213	"""
214	self.main_line.restore()
215	self.left_line.restore()
216	self.right_line.restore()
217
218	def move(self, x, y, ev):
219	"""
220	Process move to a new position, making sure that the move is allowed.
221	"""
222	pass
223
224
225	def set_cursor(self, x, y):
226	pass
227
228
229	def get_params(self):
230	"""
231	Store a copy of values of parameters of the slicer into a dictionary.
232	@return params: the dictionary created
233	"""
234	params = {}
235	## Always make sure that the left and the right line are at phi
236	## angle of the middle line
237	if math.fabs(self.left_line.phi) != math.fabs(self.right_line.phi):
238	raise ValueError,"Phi left and phi right are different %f, %f"%(self.left_line.phi, self.right_line.phi)
239
240	params["Phi"] = self.main_line.theta
241	params["Delta_Phi"] = math.fabs(self.left_line.phi)
242	params["nbins"] = self.nbins
243	return params
244
245
246	def set_params(self, params):
247	"""
248	Receive a dictionary and reset the slicer with values contained
249	in the values of the dictionary.
250	@param params: a dictionary containing name of slicer parameters and
251	values the user assigned to the slicer.
252	"""
253	main = params["Phi"]
254	phi = math.fabs(params["Delta_Phi"] )
255	self.nbins = int(params["nbins"])
256	self.main_line.theta= main
257	## Reset the slicer parameters
258	self.main_line.update()
259	self.right_line.update( phi=phi,delta=None, mline=self.main_line,
260	side=True, right=True )
261	self.left_line.update( phi=phi, delta=None, mline=self.main_line, side=True )
262	## post the new corresponding data
263	self._post_data(nbins=self.nbins)
264
265
266	def freeze_axes(self):
267	self.base.freeze_axes()
268
269
270	def thaw_axes(self):
271	self.base.thaw_axes()
272
273
274	def draw(self):
275	self.base.draw()
276
277
278	class SideInteractor(_BaseInteractor):
279	"""
280	Draw an oblique line
281	@param phi: the phase between the middle line and one side line
282	@param theta2: the angle between the middle line and x- axis
283	"""
284	def __init__(self,base,axes,color='black', zorder=5, r=1.0,phi=math.pi/4, theta2= math.pi/3):
285
286	_BaseInteractor.__init__(self, base, axes, color=color)
287	## Initialize the class
288	self.markers = []
289	self.axes = axes
290	## compute the value of the angle between the current line and
291	## the x-axis
292	self.save_theta = theta2 + phi
293	self.theta= theta2 + phi
294	## the value of the middle line angle with respect to the x-axis
295	self.theta2 = theta2
296	## Radius to find polar coordinates this line's endpoints
297	self.radius = r
298	## phi is the phase between the current line and the middle line
299	self.phi = phi
300
301	## End points polar coordinates
302	x1= self.radius*math.cos(self.theta)
303	y1= self.radius*math.sin(self.theta)
304	x2= -1self.radiusmath.cos(self.theta)
305	y2= -1self.radiusmath.sin(self.theta)
306	## defining a new marker
307	try:
308	self.inner_marker = self.axes.plot([x1/2.5],[y1/2.5], linestyle='',
309	marker='s', markersize=10,
310	color=self.color, alpha=0.6,
311	pickradius=5, label="pick",
312	zorder=zorder, # Prefer this to other lines
313	visible=True)[0]
314	except:
315	self.inner_marker = self.axes.plot([x1/2.5],[y1/2.5], linestyle='',
316	marker='s', markersize=10,
317	color=self.color, alpha=0.6,
318	label="pick",
319	visible=True)[0]
320	message = "\nTHIS PROTOTYPE NEEDS THE LATEST VERSION OF MATPLOTLIB\n"
321	message += "Get the SVN version that is at least as recent as June 1, 2007"
322	owner=self.base.base.parent
323	wx.PostEvent(owner, StatusEvent(status="sectorSlicer: %s"%message))
324
325	## Defining the current line
326	self.line = self.axes.plot([x1,x2],[y1,y2],
327	linestyle='-', marker='',
328	color=self.color,
329	visible=True)[0]
330	## Flag to differentiate the left line from the right line motion
331	self.left_moving=False
332	## Flag to define a motion
333	self.has_move=False
334	## connecting markers and draw the picture
335	self.connect_markers([self.inner_marker, self.line])
336
337
338	def set_layer(self, n):
339	"""
340	Allow adding plot to the same panel
341	@param n: the number of layer
342	"""
343	self.layernum = n
344	self.update()
345
346	def clear(self):
347	"""
348	Clear the slicer and all connected events related to this slicer
349	"""
350	self.clear_markers()
351	try:
352	self.line.remove()
353	self.inner_marker.remove()
354	except:
355	# Old version of matplotlib
356	for item in range(len(self.axes.lines)):
357	del self.axes.lines[0]
358
359
360	def update(self, phi=None, delta=None, mline=None,
361	side=False, left= False, right=False):
362	"""
363	Draw oblique line
364	@param phi: the phase between the middle line and the current line
365	@param delta: phi/2 applied only when the mline was moved
366	"""
367	#print "update left or right ", self.has_move
368	self.left_moving=left
369	theta3=0
370	if phi !=None:
371	self.phi= phi
372	if delta==None:
373	delta = 0
374
375	if right:
376	self.phi = -1*math.fabs(self.phi)
377	#delta=-delta
378	else:
379	self.phi =math.fabs(self.phi)
380	if side:
381	self.theta= mline.theta + self.phi
382
383	if mline!=None :
384	if delta!=0:
385	self.theta2 = mline+delta
386	else:
387	self.theta2 = mline.theta
388	if delta==0:
389	theta3=self.theta+delta
390	else:
391	theta3=self.theta2+delta
392
393
394	x1= self.radius*math.cos(theta3)
395	y1= self.radius*math.sin(theta3)
396	x2= -1self.radiusmath.cos(theta3)
397	y2= -1self.radiusmath.sin(theta3)
398
399	self.inner_marker.set(xdata=[x1/2.5],ydata=[y1/2.5])
400	self.line.set(xdata=[x1,x2], ydata=[y1,y2])
401
402
403
404
405	def save(self, ev):
406	"""
407	Remember the roughness for this layer and the next so that we
408	can restore on Esc.
409	"""
410	self.save_theta= self.theta
411	self.base.freeze_axes()
412
413	def moveend(self, ev):
414
415	self.has_move=False
416	self.base.moveend(ev)
417
418	def restore(self):
419	"""
420	Restore the roughness for this layer.
421	"""
422	self.theta = self.save_theta
423
424	def move(self, x, y, ev):
425	"""
426	Process move to a new position, making sure that the move is allowed.
427	"""
428
429	self.theta= math.atan2(y,x)
430	self.has_move=True
431	#ToDo: Simplify below
432	if not self.left_moving:
433	if self.theta2-self.theta <= 0 and self.theta2>0:#>= self.theta2:
434	#print "my theta", self.theta
435	self.restore()
436	return
437	elif self.theta2 < 0 and self.theta < 0 and self.theta-self.theta2 >= 0:
438	self.restore()
439	return
440	elif self.theta2 < 0 and self.theta > 0 and self.theta2+2*math.pi-self.theta >=math.pi/2:
441	#print "my theta", self.theta
442	self.restore()
443	return
444	elif self.theta2 < 0 and self.theta < 0 and self.theta2-self.theta >=math.pi/2:
445	#print "my theta", self.theta
446	self.restore()
447	return
448	elif self.theta2>0 and (self.theta2-self.theta >= math.pi/2 or (self.theta2-self.theta >= math.pi/2)):#<= self.theta2 -math.pi/2:
449	#print "self theta encore"
450	self.restore()
451	return
452	else:
453	#print "left move"
454	if self.theta < 0 and self.theta+math.pi*2-self.theta2 <= 0:
455	self.restore()
456	return
457	elif self.theta2 < 0 and self.theta-self.theta2 <= 0:
458	self.restore()
459	return
460	elif self.theta > 0 and self.theta-self.theta2 <=0:
461	#print "my theta", self.theta
462	self.restore()
463	return
464	elif self.theta-self.theta2 >= math.pi/2 or (self.theta+math.pi*2-self.theta2 >= math.pi/2 and self.theta<0 and self.theta2>0):
465	#print "self theta encore"
466	self.restore()
467	return
468
469	self.phi= math.fabs(self.theta2 - self.theta)
470	if self.phi>math.pi:
471	self.phi= 2*math.pi-math.fabs(self.theta2 - self.theta)
472
473	#print "move , self.phi, self.theta,", self.theta180/math.pi,self.theta2180/math.pi,self.phi*180/math.pi
474
475
476
477	self.base.base.update()
478
479	def set_cursor(self, x, y):
480	self.move(x, y, None)
481	self.update()
482
483
484	def get_params(self):
485	params = {}
486	params["radius"] = self.radius
487	params["theta"] = self.theta
488	return params
489
490	def set_params(self, params):
491
492	x = params["radius"]
493	self.set_cursor(x, self._inner_mouse_y)
494
495
496
497	class LineInteractor(_BaseInteractor):
498	"""
499	Select an annulus through a 2D plot
500	"""
501	def __init__(self,base,axes,color='black', zorder=5, r=1.0,theta=math.pi/4):
502
503	_BaseInteractor.__init__(self, base, axes, color=color)
504	self.markers = []
505	self.axes = axes
506
507	self.save_theta = theta
508	self.theta= theta
509
510	self.radius = r
511
512	self.scale = 10.0
513
514	#raise "Version error", message
515
516	# Inner circle
517	x1= self.radius*math.cos(self.theta)
518	y1= self.radius*math.sin(self.theta)
519	x2= -1self.radiusmath.cos(self.theta)
520	y2= -1self.radiusmath.sin(self.theta)
521	try:
522	# Inner circle marker
523	self.inner_marker = self.axes.plot([x1/2.5],[y1/2.5], linestyle='',
524	marker='s', markersize=10,
525	color=self.color, alpha=0.6,
526	pickradius=5, label="pick",
527	zorder=zorder, # Prefer this to other lines
528	visible=True)[0]
529	except:
530	self.inner_marker = self.axes.plot([x1/2.5],[y1/2.5], linestyle='',
531	marker='s', markersize=10,
532	color=self.color, alpha=0.6,
533	label="pick",
534	visible=True)[0]
535	message = "\nTHIS PROTOTYPE NEEDS THE LATEST VERSION OF MATPLOTLIB\n"
536	message += "Get the SVN version that is at least as recent as June 1, 2007"
537
538
539	self.line = self.axes.plot([x1,x2],[y1,y2],
540	linestyle='-', marker='',
541	color=self.color,
542	visible=True)[0]
543
544	self.npts = 20
545	self.has_move=False
546	self.connect_markers([self.inner_marker, self.line])
547	self.update()
548
549	def set_layer(self, n):
550	self.layernum = n
551	self.update()
552
553	def clear(self):
554	self.clear_markers()
555	try:
556	self.inner_marker.remove()
557	self.line.remove()
558	except:
559	# Old version of matplotlib
560	for item in range(len(self.axes.lines)):
561	del self.axes.lines[0]
562
563
564	def update(self, theta=None):
565	"""
566	Draw the new roughness on the graph.
567	"""
568
569	if theta !=None:
570	self.theta= theta
571	x1= self.radius*math.cos(self.theta)
572	y1= self.radius*math.sin(self.theta)
573	x2= -1self.radiusmath.cos(self.theta)
574	y2= -1self.radiusmath.sin(self.theta)
575
576	self.inner_marker.set(xdata=[x1/2.5],ydata=[y1/2.5])
577	self.line.set(xdata=[x1,x2], ydata=[y1,y2])
578
579
580
581	def save(self, ev):
582	"""
583	Remember the roughness for this layer and the next so that we
584	can restore on Esc.
585	"""
586	self.save_theta= self.theta
587	self.base.freeze_axes()
588
589	def moveend(self, ev):
590
591	self.has_move=False
592	self.base.moveend(ev)
593
594	def restore(self):
595	"""
596	Restore the roughness for this layer.
597	"""
598	self.theta = self.save_theta
599
600	def move(self, x, y, ev):
601	"""
602	Process move to a new position, making sure that the move is allowed.
603	"""
604
605	self.theta= math.atan2(y,x)
606	#print "main_line previous theta --- next theta ",math.degrees(self.save_theta),math.degrees(self.theta)
607
608	self.has_move=True
609
610	self.base.base.update()
611
612	def set_cursor(self, x, y):
613	self.move(x, y, None)
614	self.update()
615
616
617	def get_params(self):
618	params = {}
619	params["radius"] = self.radius
620	params["theta"] = self.theta
621	return params
622
623	def set_params(self, params):
624
625	x = params["radius"]
626	self.set_cursor(x, self._inner_mouse_y)
627
628
629

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source: sasview/guiframe/local_perspectives/plotting/SectorSlicer.py @ 9dd261e

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