Plotter1D.py @ b5ca223

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 b5ca223 was 32c0841, checked in by Gervaise Alina <gervyh@…>, 14 years ago
working on pylint
Property mode set to `100644`
File size: 20.0 KB

Rev	Line
[1bf33c1]	1
[d955bf19]	2	################################################################################
	3	#This software was developed by the University of Tennessee as part of the
	4	#Distributed Data Analysis of Neutron Scattering Experiments (DANSE)
	5	#project funded by the US National Science Foundation.
	6	#
	7	#See the license text in license.txt
	8	#
	9	#copyright 2008, University of Tennessee
	10	################################################################################
[1bf33c1]	11
	12
	13	import wx
[4ac8556]	14	import sys
	15	import os
	16	import pylab
	17	import math
	18	import numpy
	19	import time
[1bf33c1]	20	import danse.common.plottools
	21	from danse.common.plottools.PlotPanel import PlotPanel
[e5664f2]	22	from danse.common.plottools.plottables import Graph
[3b69ca6]	23	from sans.guiframe import dataFitting
[1bf33c1]	24	from sans.guicomm.events import EVT_NEW_PLOT
[32c0841]	25	from sans.guicomm.events import StatusEvent
	26	from sans.guicomm.events import NewPlotEvent
	27	from sans.guicomm.events import SlicerEvent
	28	from sans.guicomm.events import ErrorDataEvent
	29	from sans.guicomm.events import RemoveDataEvent
	30	from sans.guicomm.events import AddManyDataEvent
[0d9dae8]	31	from sans.guiframe.utils import PanelMenu
[4ac8556]	32	from sans.guiframe.dataFitting import Data1D
[e5664f2]	33	from sans.guiframe.dataFitting import Theory1D
[1bf33c1]	34	from binder import BindArtist
	35
[0d9dae8]	36	DEFAULT_QMAX = 0.05
[1bf33c1]	37	DEFAULT_QSTEP = 0.001
	38	DEFAULT_BEAM = 0.005
[32c0841]	39	BIN_WIDTH = 1
[1bf33c1]	40
[0d9dae8]	41
[1bf33c1]	42	class ModelPanel1D(PlotPanel):
	43	"""
[d955bf19]	44	Plot panel for use with the GUI manager
[1bf33c1]	45	"""
	46
	47	## Internal name for the AUI manager
	48	window_name = "plotpanel"
	49	## Title to appear on top of the window
	50	window_caption = "Plot Panel"
	51	## Flag to tell the GUI manager that this panel is not
	52	# tied to any perspective
	53	ALWAYS_ON = True
	54	## Group ID
	55	group_id = None
	56
[32c0841]	57	def __init__(self, parent, id=-1, color = None,
	58	dpi=None, style=wx.NO_FULL_REPAINT_ON_RESIZE, **kwargs):
[1bf33c1]	59	"""
[d955bf19]	60	Initialize the panel
[1bf33c1]	61	"""
[32c0841]	62	PlotPanel.__init__(self, parent, id=id, style=style, **kwargs)
[1bf33c1]	63	## Reference to the parent window
	64	self.parent = parent
	65	## Plottables
	66	self.plots = {}
[869c368]	67	## save errors dy for each data plotted
[32c0841]	68	self.err_dy = {}
[6c0568b]	69	## flag to determine if the hide or show context menu item should
	70	## be displayed
[32c0841]	71	self.errors_hide = False
[1bf33c1]	72	## Unique ID (from gui_manager)
	73	self.uid = None
	74	## Action IDs for internal call-backs
	75	self.action_ids = {}
[6063b16]	76	## Default locations
	77	self._default_save_location = os.getcwd()
[1bf33c1]	78	## Graph
	79	self.graph = Graph()
	80	self.graph.xaxis("\\rm{Q}", 'A^{-1}')
[32c0841]	81	self.graph.yaxis("\\rm{Intensity} ", "cm^{-1}")
[1bf33c1]	82	self.graph.render(self)
[4ed210f4]	83
[32c0841]	84	def set_data(self, list=None):
[3c44c66]	85	"""
	86	"""
	87	pass
	88
[1bf33c1]	89	def _reset(self):
	90	"""
[d955bf19]	91	Resets internal data and graph
[1bf33c1]	92	"""
	93	self.graph.reset()
	94	self.plots = {}
	95	self.action_ids = {}
	96
	97	def _onEVT_1DREPLOT(self, event):
	98	"""
[d955bf19]	99	Data is ready to be displayed
	100
	101	:param event: data event
[1bf33c1]	102	"""
	103	#TODO: Check for existence of plot attribute
	104	# Check whether this is a replot. If we ask for a replot
	105	# and the plottable no longer exists, ignore the event.
[32c0841]	106	if hasattr(event, "update") and event.update == True \
[1bf33c1]	107	and event.plot.name not in self.plots.keys():
	108	return
	109	if hasattr(event, "reset"):
	110	self._reset()
[f5fda87]	111	# Check whether the plottable is empty
[32c0841]	112	is_empty = len(event.plot.x) == 0
[f5fda87]	113
[1bf33c1]	114	is_new = True
	115	if event.plot.name in self.plots.keys():
[f5fda87]	116	# If the plottable is empty, just remove the plottable from the graph
	117	if is_empty:
	118	self.graph.delete(self.plots[event.plot.name])
[21d99c2]	119	del self.plots[event.plot.name]
	120	else:
	121	# Check whether the class of plottable changed
[32c0841]	122	if not event.plot.__class__ == self.plots[event.plot.name].__class__:
[21d99c2]	123	#overwrite a plottable using the same name
	124	self.graph.delete(self.plots[event.plot.name])
	125	else:
	126	# plottable is already draw on the panel
	127	is_new = False
[ffd23b5]	128
[f5fda87]	129	if not is_empty:
	130	if is_new:
	131	# a new plottable overwrites a plotted one using the same id
	132	for plottable in self.plots.itervalues():
[32c0841]	133	if hasattr(event.plot, "id") and hasattr(plottable, "id"):
[0b57a57]	134	#remove the existing plot and same id and same name
[32c0841]	135	if event.plot.id == plottable.id and \
	136	event.plot.name == plottable.name:
[f5fda87]	137	self.graph.delete(plottable)
	138
	139	self.plots[event.plot.name] = event.plot
	140	self.graph.add(self.plots[event.plot.name])
	141	else:
	142	#replot the graph
	143	self.plots[event.plot.name].x = event.plot.x
	144	self.plots[event.plot.name].y = event.plot.y
	145	self.plots[event.plot.name].dy = event.plot.dy
[32c0841]	146	if hasattr(event.plot, 'dx') and \
	147	hasattr(self.plots[event.plot.name], 'dx'):
[f5fda87]	148	self.plots[event.plot.name].dx = event.plot.dx
[31482fc]	149
[1bf33c1]	150	#TODO: Should re-factor this
[6c0568b]	151	## for all added plot the option to hide error show be displayed first
[31482fc]	152	#self.errors_hide = 0
[6c0568b]	153	## Set axis labels
[1bf33c1]	154	self.graph.xaxis(event.plot._xaxis, event.plot._xunit)
	155	self.graph.yaxis(event.plot._yaxis, event.plot._yunit)
[6c0568b]	156	## Set the view scale for all plots
[1bf33c1]	157	self._onEVT_FUNC_PROPERTY()
[6c0568b]	158	## render the graph
[1bf33c1]	159	self.graph.render(self)
	160	self.subplot.figure.canvas.draw_idle()
[0b57a57]	161	#if self.errors_hide:
	162	# self._on_remove_errors(evt=None)
	163	#else:
	164	# self._on_add_errors( evt=None)
[31482fc]	165
[1bf33c1]	166	def onLeftDown(self,event):
[6c0568b]	167	"""
[d955bf19]	168	left button down and ready to drag
	169	Display the position of the mouse on the statusbar
[6c0568b]	170	"""
[1bf33c1]	171	PlotPanel.onLeftDown(self, event)
	172	ax = event.inaxes
	173	if ax != None:
	174	position = "x: %8.3g y: %8.3g" % (event.xdata, event.ydata)
	175	wx.PostEvent(self.parent, StatusEvent(status=position))
[4ed210f4]	176
	177	#post nd event to notify guiframe that this panel is on focus
	178	wx.PostEvent(self.parent, AddManyDataEvent(panel=self))
	179
[1bf33c1]	180	def _onRemove(self, event):
	181	"""
[d955bf19]	182	Remove a plottable from the graph and render the graph
	183
	184	:param event: Menu event
	185
[1bf33c1]	186	"""
[32c0841]	187	selected_plot = self.plots[self.graph.selected_plottable]
[6c0568b]	188	## Check if there is a selected graph to remove
[1debb29]	189	if not self.graph.selected_plottable == None and\
	190	self.graph.selected_plottable in self.plots.keys():
[32c0841]	191	color = self.graph.plottables[selected_plot]
	192	event = RemoveDataEvent(data=selected_plot)
[1debb29]	193	wx.PostEvent(self.parent, event)
[32c0841]	194	self.graph.delete(selected_plot)
	195	del selected_plot
[1debb29]	196	## increment graph color
	197	self.graph.color += color
[1bf33c1]	198	self.graph.render(self)
	199	self.subplot.figure.canvas.draw_idle()
[1debb29]	200
[1bf33c1]	201	def onContextMenu(self, event):
	202	"""
[d955bf19]	203	1D plot context menu
	204
	205	:param event: wx context event
	206
[1bf33c1]	207	"""
	208	slicerpop = PanelMenu()
	209	slicerpop.set_plots(self.plots)
[32c0841]	210	slicerpop.set_graph(self.graph)
[9a585d0]	211	# Various plot options
	212	id = wx.NewId()
[32c0841]	213	slicerpop.Append(id, '&Save image', 'Save image as PNG')
[9a585d0]	214	wx.EVT_MENU(self, id, self.onSaveImage)
	215	id = wx.NewId()
[32c0841]	216	slicerpop.Append(id, '&Print image', 'Print image ')
[18eba35]	217	wx.EVT_MENU(self, id, self.onPrint)
	218	id = wx.NewId()
[32c0841]	219	slicerpop.Append(id, '&Print Preview', 'image preview for print')
[18eba35]	220	wx.EVT_MENU(self, id, self.onPrinterPreview)
[9a585d0]	221	slicerpop.AppendSeparator()
	222	item_list = self.parent.get_context_menu(self.graph)
[32c0841]	223	if (not item_list == None) and (not len(item_list) == 0):
[9a585d0]	224	for item in item_list:
	225	try:
	226	id = wx.NewId()
	227	slicerpop.Append(id, item[0], item[1])
	228	wx.EVT_MENU(self, id, item[2])
	229	except:
[32c0841]	230	msg = "ModelPanel1D.onContextMenu: "
	231	msg += "bad menu item %s"%sys.exc_value
	232	wx.PostEvent(self.parent, StatusEvent(status=msg))
[9a585d0]	233	pass
	234	slicerpop.AppendSeparator()
[6c0568b]	235
[1bf33c1]	236	if self.graph.selected_plottable in self.plots:
	237	plot = self.plots[self.graph.selected_plottable]
	238	id = wx.NewId()
	239	name = plot.name
[42d27f2]	240	slicerpop.Append(id, "&Save points" )
[1bf33c1]	241	self.action_ids[str(id)] = plot
	242	wx.EVT_MENU(self, id, self._onSave)
	243	id = wx.NewId()
	244	slicerpop.Append(id, "Remove %s curve" % name)
	245	self.action_ids[str(id)] = plot
	246	wx.EVT_MENU(self, id, self._onRemove)
[9a585d0]	247	slicerpop.AppendSeparator()
[1bf33c1]	248	# Option to hide
	249	#TODO: implement functionality to hide a plottable (legend click)
	250	if self.graph.selected_plottable in self.plots:
[32c0841]	251	selected_plot = self.plots[self.graph.selected_plottable]
[3cc533e]	252	id = wx.NewId()
	253	slicerpop.Append(id, '&Linear fit')
	254	wx.EVT_MENU(self, id, self.onFitting)
[9a585d0]	255	slicerpop.AppendSeparator()
[1bf33c1]	256	id = wx.NewId()
	257	slicerpop.Append(id, '&Change scale')
	258	wx.EVT_MENU(self, id, self._onProperties)
	259	id = wx.NewId()
	260	slicerpop.Append(id, '&Reset Graph')
[d468daa]	261	wx.EVT_MENU(self, id, self.onResetGraph)
[1bf33c1]	262	pos = event.GetPosition()
	263	pos = self.ScreenToClient(pos)
	264	self.PopupMenu(slicerpop, pos)
[18eba35]	265
[869c368]	266	def _on_remove_errors(self, evt):
[6c0568b]	267	"""
[d955bf19]	268	Save name and dy of data in dictionary self.err_dy
	269	Create a new data1D with the same x, y
	270	vector and dy with zeros.
	271	post self.err_dy as event (ErrorDataEvent) for any object
	272	which wants to reconstruct the initial data.
	273
	274	:param evt: Menu event
	275
[6c0568b]	276	"""
[869c368]	277	if not self.graph.selected_plottable == None:
[6c0568b]	278	## store existing dy
[869c368]	279	name =self.plots[self.graph.selected_plottable].name
	280	dy = self.plots[self.graph.selected_plottable].dy
[32c0841]	281	self.err_dy[name] = dy
[6c0568b]	282	## Create a new dy for a new plottable
[32c0841]	283	#import numpy
[d955bf19]	284	dy = numpy.zeros(len(self.plots[self.graph.selected_plottable].y))
	285	selected_plot = self.plots[self.graph.selected_plottable]
[c81140c]	286
[32c0841]	287	if selected_plot.__class__.__name__ == "Data1D":
[8068b52]	288	# Make sure that we can pass a basic Data1D
	289	dxl = None
	290	dxw = None
	291	if hasattr(selected_plot, "dxl"):
	292	dxl = selected_plot.dxl
	293	if hasattr(selected_plot, "dxw"):
	294	dxw = selected_plot.dxw
[32c0841]	295	new_plot = Data1D(x=selected_plot.x, y=selected_plot.y,
	296	dx=selected_plot.dx, dy=dy)
	297	new_plot.dxl = dxl
	298	new_plot.dxw = dxw
[0b16ee3]	299	else:
[32c0841]	300	new_plot = Theory1D(x=selected_plot.x,
	301	y=selected_plot.y, dy=dy)
[869c368]	302	new_plot.interactive = True
[31482fc]	303	self.errors_hide = True
[869c368]	304	new_plot.name = self.plots[self.graph.selected_plottable].name
	305	if hasattr(self.plots[self.graph.selected_plottable], "group_id"):
	306	new_plot.group_id = self.plots[self.graph.selected_plottable].group_id
[32c0841]	307	if hasattr(self.plots[self.graph.selected_plottable], "id"):
[ba535a6]	308	new_plot.id = self.plots[self.graph.selected_plottable].id
	309	else:
	310	new_plot.id = str(time.time())
[869c368]	311	else:
	312	new_plot.group_id = str(time.time())
	313	new_plot.id = str(time.time())
	314	label, unit = self.plots[self.graph.selected_plottable].get_xaxis()
	315	new_plot.xaxis(label, unit)
	316	label, unit = self.plots[self.graph.selected_plottable].get_yaxis()
	317	new_plot.yaxis(label, unit)
[6c0568b]	318	## save the color of the selected plottable before it is deleted
[32c0841]	319	color = self.graph.plottables[self.plots[self.graph.selected_plottable]]
[18eba35]	320	self.graph.delete(self.plots[self.graph.selected_plottable])
[6c0568b]	321	## add newly created plottable to the graph with the save color
[0b16ee3]	322	self.graph.color += color
[32c0841]	323	self.graph.add(new_plot, color)
	324	## transforming the view of the new data into the same of
	325	#the previous data
[869c368]	326	self._onEVT_FUNC_PROPERTY()
[6c0568b]	327	## save the plot
[32c0841]	328	self.plots[self.graph.selected_plottable] = new_plot
[6c0568b]	329	## Render the graph
[869c368]	330	self.graph.render(self)
	331	self.subplot.figure.canvas.draw_idle()
[c81140c]	332	event = ErrorDataEvent(err_dy=self.err_dy)
	333	wx.PostEvent(self.parent, event)
[d955bf19]	334
[1bf33c1]	335	def _on_add_errors(self, evt):
	336	"""
[d955bf19]	337	create a new data1D witht the errors saved in self.err_dy
	338	to show errors of the plot.
	339	Compute reasonable errors for a data set without
	340	errors and transorm the plottable to a Data1D
	341
	342	:param evt: Menu event
[c81140c]	343
[d955bf19]	344	"""
[1debb29]	345	if not self.graph.selected_plottable == None \
	346	and self.graph.selected_plottable in self.plots.keys():
[6c0568b]	347	##Reset the flag to display the hide option on the context menu
[31482fc]	348	self.errors_hide = False
[6c0568b]	349	## restore dy
[1bf33c1]	350	length = len(self.plots[self.graph.selected_plottable].x)
	351	dy = numpy.zeros(length)
[32c0841]	352	selected_plot = self.plots[self.graph.selected_plottable]
[869c368]	353	try:
[c81140c]	354	dy = self.err_dy[selected_plot.name]
[869c368]	355	except:
[32c0841]	356	if hasattr(selected_plot, "dy"):
	357	dy = selected_plot.dy
[0b16ee3]	358	else:
	359	dy = numpy.zeros(selected_plot.dy)
[6c0568b]	360	## Create a new plottable data1D
[32c0841]	361	if selected_plot.__class__.__name__ == "Data1D":
[8068b52]	362	# Make sure that we can pass a basic Data1D
	363	dxl = None
	364	dxw = None
	365	if hasattr(selected_plot, "dxl"):
	366	dxl = selected_plot.dxl
	367	if hasattr(selected_plot, "dxw"):
	368	dxw = selected_plot.dxw
[32c0841]	369	new_plot = Data1D(x=selected_plot.x,
	370	y=selected_plot.y,
[3b69ca6]	371	dx=selected_plot.dx,
[4ac8556]	372	dy=dy)
	373	new_plot.dxl = dxl
[32c0841]	374	new_plot.dxw = dxw
[0b16ee3]	375	else:
	376	## Create a new plottable Theory1D
[32c0841]	377	new_plot = Theory1D(x=selected_plot.x, y=selected_plot.y, dy=dy)
[1bf33c1]	378	new_plot.interactive = True
	379	new_plot.name = self.plots[self.graph.selected_plottable].name
	380	if hasattr(self.plots[self.graph.selected_plottable], "group_id"):
	381	new_plot.group_id = self.plots[self.graph.selected_plottable].group_id
[ba535a6]	382	if hasattr(self.plots[self.graph.selected_plottable],"id"):
	383	new_plot.id = self.plots[self.graph.selected_plottable].id
	384	else:
	385	new_plot.id = str(time.time())
[1bf33c1]	386	else:
	387	new_plot.group_id = str(time.time())
[d1dd9d4]	388	new_plot.id = str(time.time())
[1bf33c1]	389
	390	label, unit = self.plots[self.graph.selected_plottable].get_xaxis()
	391	new_plot.xaxis(label, unit)
	392	label, unit = self.plots[self.graph.selected_plottable].get_yaxis()
	393	new_plot.yaxis(label, unit)
[6c0568b]	394	## save the color of the selected plottable before it is deleted
[18eba35]	395	color=self.graph.plottables[self.plots[self.graph.selected_plottable]]
	396	self.graph.delete(self.plots[self.graph.selected_plottable])
[0b16ee3]	397	self.graph.color += color
[6c0568b]	398	## add newly created plottable to the graph with the save color
[18eba35]	399	self.graph.add(new_plot, color)
[32c0841]	400	## transforming the view of the new data into the same of
	401	# the previous data
[ffd23b5]	402	self._onEVT_FUNC_PROPERTY()
[6c0568b]	403	## save the plot
[1bf33c1]	404	self.plots[self.graph.selected_plottable]=new_plot
[6c0568b]	405	## render the graph with its new content
[1bf33c1]	406	self.graph.render(self)
[8bd764d]	407	self.subplot.figure.canvas.draw_idle()
	408
[6c0568b]	409
[42d27f2]	410	def _onsaveTXT(self, path):
	411	"""
[d955bf19]	412	Save file as txt
[1abcb04]	413
[d955bf19]	414	:TODO: Refactor and remove this method. See TODO in _onSave.
	415
[42d27f2]	416	"""
	417	data = self.plots[self.graph.selected_plottable]
	418
	419	if not path == None:
	420	out = open(path, 'w')
	421	has_errors = True
[32c0841]	422	if data.dy == None or data.dy == []:
[42d27f2]	423	has_errors = False
	424	# Sanity check
	425	if has_errors:
	426	try:
	427	if len(data.y) != len(data.dy):
	428	has_errors = False
	429	except:
	430	has_errors = False
	431	if has_errors:
	432	out.write("<X> <Y> <dY>\n")
	433	else:
	434	out.write("<X> <Y>\n")
	435
	436	for i in range(len(data.x)):
	437	if has_errors:
	438	out.write("%g %g %g\n" % (data.x[i],
	439	data.y[i],
	440	data.dy[i]))
	441	else:
	442	out.write("%g %g\n" % (data.x[i],
	443	data.y[i]))
	444	out.close()
[6063b16]	445	try:
	446	self._default_save_location = os.path.dirname(path)
	447	except:
	448	pass
[8bd764d]	449
[1bf33c1]	450	def _onSave(self, evt):
	451	"""
[d955bf19]	452	Save a data set to a text file
	453
	454	:param evt: Menu event
	455
[1bf33c1]	456	"""
	457	id = str(evt.GetId())
	458	if id in self.action_ids:
	459
	460	path = None
[5fe5871c]	461	wildcard = "Text files (.txt)\|.txt\|"\
[7959f297]	462	"CanSAS 1D files(.xml)\|.xml"
[6063b16]	463	dlg = wx.FileDialog(self, "Choose a file",
[32c0841]	464	self._default_save_location,
	465	"", wildcard , wx.SAVE)
[42d27f2]	466
[1bf33c1]	467	if dlg.ShowModal() == wx.ID_OK:
	468	path = dlg.GetPath()
	469	mypath = os.path.basename(path)
[1abcb04]	470
[32c0841]	471	#TODO: This is bad design. The DataLoader is designed
	472	#to recognize extensions.
	473	# It should be a simple matter of calling the .
	474	#save(file, data, '.xml') method
[f0a9a3cc]	475	# of the DataLoader.loader.Loader class.
	476	from DataLoader.loader import Loader
	477	#Instantiate a loader
	478	loader = Loader()
	479	data = self.plots[self.graph.selected_plottable]
[32c0841]	480	format = ".txt"
[f0a9a3cc]	481	if os.path.splitext(mypath)[1].lower() == format:
	482	self._onsaveTXT( path)
[32c0841]	483	format = ".xml"
	484	if os.path.splitext(mypath)[1].lower() == format:
	485	loader.save(path, data, format)
[f0a9a3cc]	486	try:
	487	self._default_save_location = os.path.dirname(path)
	488	except:
	489	pass
[1bf33c1]	490	dlg.Destroy()

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SasView

source: sasview/guiframe/local_perspectives/plotting/Plotter1D.py @ b5ca223

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