def __init__(self, parent=None, signalManager = None):
OWWidget.__init__(self, parent, signalManager, "Time Data Visualizer", TRUE)
self.inputs = [("Data", ExampleTable, self.setData, Default), ("Data Subset", ExampleTable, self.setSubsetData), ("Features", AttributeList, self.setShownAttributes)]
self.outputs = [("Selected Data", ExampleTable), ("Other Data", ExampleTable)]
# local variables
self.autoSendSelection = 1
self.toolbarSelection = 0
self.colorSettings = None
self.selectedSchemaIndex = 0
self.graph = OWTimeDataVisualizerGraph(self, self.mainArea, "Time Data Visualizer")
self.data = None
self.subsetData = None
#load settings
self.loadSettings()
#GUI
self.tabs = OWGUI.tabWidget(self.controlArea)
self.GeneralTab = OWGUI.createTabPage(self.tabs, "Main")
self.SettingsTab = OWGUI.createTabPage(self.tabs, "Settings")
#add a graph widget
self.mainArea.layout().addWidget(self.graph)
self.connect(self.graphButton, SIGNAL("clicked()"), self.graph.saveToFile)
#x attribute
self.attrX = ""
box = OWGUI.widgetBox(self.GeneralTab, "Time Attribute")
# add an option to use the index of the example as time stamp
#OWGUI.checkBox(box, self, 'graph.use', 'X axis title', callback = self.graph.setShowXaxisTitle)
self.timeCombo = OWGUI.comboBox(box, self, "graph.timeAttr", callback = self.majorUpdateGraph, sendSelectedValue = 1, valueType = str)
self.colorCombo = OWGUI.comboBox(self.GeneralTab, self, "graph.colorAttr", "Point Color", callback = self.updateGraph, sendSelectedValue = 1, valueType = str)
# y attributes
box = OWGUI.widgetBox(self.GeneralTab, "Visualized attributes")
OWGUI.listBox(box, self, "graph.shownAttributeIndices", "graph.attributes", selectionMode = QListWidget.ExtendedSelection, sizeHint = QSize(150, 250))
OWGUI.button(box, self, "Update listbox changes", callback = self.majorUpdateGraph)
# zooming / selection
self.zoomSelectToolbar = OWToolbars.ZoomSelectToolbar(self, self.GeneralTab, self.graph, self.autoSendSelection)
self.connect(self.zoomSelectToolbar.buttonSendSelections, SIGNAL("clicked()"), self.sendSelections)
# ####################################
# SETTINGS TAB
# point width
pointBox = OWGUI.widgetBox(self.SettingsTab, "Point properties")
OWGUI.hSlider(pointBox, self, 'graph.pointWidth', label = "Symbol size: ", minValue=1, maxValue=10, step=1, callback = self.pointSizeChange)
OWGUI.hSlider(pointBox, self, 'graph.alphaValue', label = "Transparency: ", minValue=0, maxValue=255, step=10, callback = self.alphaChange)
# general graph settings
box4 = OWGUI.widgetBox(self.SettingsTab, "General graph settings")
OWGUI.checkBox(box4, self, 'graph.drawLines', 'Draw lines', callback = self.updateGraph)
OWGUI.checkBox(box4, self, 'graph.drawPoints', 'Draw points (slower)', callback = self.updateGraph)
OWGUI.checkBox(box4, self, 'graph.trackExamples', 'Track examples', callback = self.updateGraph)
OWGUI.checkBox(box4, self, 'graph.showGrayRects', 'Show gray rectangles', callback = self.updateGraph)
OWGUI.checkBox(box4, self, 'graph.showXaxisTitle', 'Show x axis title', callback = self.graph.setShowXaxisTitle)
OWGUI.checkBox(box4, self, 'graph.showLegend', 'Show legend', callback = self.updateGraph)
OWGUI.checkBox(box4, self, 'graph.useAntialiasing', 'Use antialiasing', callback = self.antialiasingChange)
self.colorButtonsBox = OWGUI.widgetBox(self.SettingsTab, "Colors", orientation = "horizontal")
OWGUI.button(self.colorButtonsBox, self, "Set Colors", self.setColors, tooltip = "Set the canvas background color, grid color and color palette for coloring continuous variables", debuggingEnabled = 0)
box5 = OWGUI.widgetBox(self.SettingsTab, "Tooltips settings")
OWGUI.comboBox(box5, self, "graph.tooltipKind", items = ["Don't Show Tooltips", "Show Visible Attributes", "Show All Attributes"], callback = self.updateGraph)
OWGUI.checkBox(self.SettingsTab, self, 'autoSendSelection', 'Auto send selected data', box = "Data selection", callback = self.setAutoSendSelection, tooltip = "Send signals with selected data whenever the selection changes")
self.graph.selectionChangedCallback = self.setAutoSendSelection
OWGUI.rubber(self.GeneralTab)
OWGUI.rubber(self.SettingsTab)
self.icons = self.createAttributeIconDict()
self.activateLoadedSettings()
self.resize(700, 550)
def __init__(self, parent=None, signalManager=None):
OWWidget.__init__(self, parent, signalManager, "Time Data Visualizer",
TRUE)
self.inputs = [("Examples", ExampleTable, self.setData, Default),
("Example Subset", ExampleTable, self.setSubsetData),
("Attribute selection", AttributeList,
self.setShownAttributes)]
self.outputs = [("Selected Examples", ExampleTable),
("Unselected Examples", ExampleTable)]
# local variables
self.autoSendSelection = 1
self.toolbarSelection = 0
self.colorSettings = None
self.selectedSchemaIndex = 0
self.graph = OWTimeDataVisualizerGraph(self, self.mainArea,
"Time Data Visualizer")
self.data = None
self.subsetData = None
#load settings
self.loadSettings()
#GUI
self.tabs = OWGUI.tabWidget(self.controlArea)
self.GeneralTab = OWGUI.createTabPage(self.tabs, "Main")
self.SettingsTab = OWGUI.createTabPage(self.tabs, "Settings")
#add a graph widget
self.mainArea.layout().addWidget(self.graph)
self.connect(self.graphButton, SIGNAL("clicked()"),
self.graph.saveToFile)
#x attribute
self.attrX = ""
box = OWGUI.widgetBox(self.GeneralTab, "Time Attribute")
# add an option to use the index of the example as time stamp
#OWGUI.checkBox(box, self, 'graph.use', 'X axis title', callback = self.graph.setShowXaxisTitle)
self.timeCombo = OWGUI.comboBox(box,
self,
"graph.timeAttr",
callback=self.majorUpdateGraph,
sendSelectedValue=1,
valueType=str)
self.colorCombo = OWGUI.comboBox(self.GeneralTab,
self,
"graph.colorAttr",
"Point Color",
callback=self.updateGraph,
sendSelectedValue=1,
valueType=str)
# y attributes
box = OWGUI.widgetBox(self.GeneralTab, "Visualized attributes")
OWGUI.listBox(box,
self,
"graph.shownAttributeIndices",
"graph.attributes",
selectionMode=QListWidget.ExtendedSelection,
sizeHint=QSize(150, 250))
OWGUI.button(box,
self,
"Update listbox changes",
callback=self.majorUpdateGraph)
# zooming / selection
self.zoomSelectToolbar = OWToolbars.ZoomSelectToolbar(
self, self.GeneralTab, self.graph, self.autoSendSelection)
self.connect(self.zoomSelectToolbar.buttonSendSelections,
SIGNAL("clicked()"), self.sendSelections)
# ####################################
# SETTINGS TAB
# point width
pointBox = OWGUI.widgetBox(self.SettingsTab, "Point properties")
OWGUI.hSlider(pointBox,
self,
'graph.pointWidth',
label="Symbol size: ",
minValue=1,
maxValue=10,
step=1,
callback=self.pointSizeChange)
OWGUI.hSlider(pointBox,
self,
'graph.alphaValue',
label="Transparency: ",
minValue=0,
maxValue=255,
step=10,
callback=self.alphaChange)
# general graph settings
box4 = OWGUI.widgetBox(self.SettingsTab, "General graph settings")
OWGUI.checkBox(box4,
self,
'graph.drawLines',
'Draw lines',
callback=self.updateGraph)
OWGUI.checkBox(box4,
self,
'graph.drawPoints',
'Draw points (slower)',
callback=self.updateGraph)
OWGUI.checkBox(box4,
self,
'graph.trackExamples',
'Track examples',
callback=self.updateGraph)
OWGUI.checkBox(box4,
self,
'graph.showGrayRects',
'Show gray rectangles',
callback=self.updateGraph)
OWGUI.checkBox(box4,
self,
'graph.showXaxisTitle',
'Show x axis title',
callback=self.graph.setShowXaxisTitle)
OWGUI.checkBox(box4,
self,
'graph.showLegend',
'Show legend',
callback=self.updateGraph)
OWGUI.checkBox(box4,
self,
'graph.useAntialiasing',
'Use antialiasing',
callback=self.antialiasingChange)
self.colorButtonsBox = OWGUI.widgetBox(self.SettingsTab,
"Colors",
orientation="horizontal")
OWGUI.button(
self.colorButtonsBox,
self,
"Set Colors",
self.setColors,
tooltip=
"Set the canvas background color, grid color and color palette for coloring continuous variables",
debuggingEnabled=0)
box5 = OWGUI.widgetBox(self.SettingsTab, "Tooltips settings")
OWGUI.comboBox(box5,
self,
"graph.tooltipKind",
items=[
"Don't Show Tooltips", "Show Visible Attributes",
"Show All Attributes"
],
callback=self.updateGraph)
OWGUI.checkBox(
self.SettingsTab,
self,
'autoSendSelection',
'Auto send selected data',
box="Data selection",
callback=self.setAutoSendSelection,
tooltip=
"Send signals with selected data whenever the selection changes")
self.graph.selectionChangedCallback = self.setAutoSendSelection
OWGUI.rubber(self.GeneralTab)
OWGUI.rubber(self.SettingsTab)
self.icons = self.createAttributeIconDict()
self.activateLoadedSettings()
self.resize(700, 550)
class OWTimeDataVisualizer(OWWidget):
settingsList = ["graph.pointWidth", "graph.showXaxisTitle",
"graph.showLegend", "graph.useAntialiasing", 'graph.drawPoints', 'graph.drawLines',
"graph.alphaValue", "autoSendSelection", "toolbarSelection", "graph.trackExamples"
"colorSettings", "selectedSchemaIndex"]
contextHandlers = {"": DomainContextHandler("", ["graph.timeAttr", "graph.attributes", "graph.shownAttributeIndices"], loadImperfect = 0)}
def __init__(self, parent=None, signalManager = None):
OWWidget.__init__(self, parent, signalManager, "Time Data Visualizer", TRUE)
self.inputs = [("Data", ExampleTable, self.setData, Default), ("Data Subset", ExampleTable, self.setSubsetData), ("Features", AttributeList, self.setShownAttributes)]
self.outputs = [("Selected Data", ExampleTable), ("Other Data", ExampleTable)]
# local variables
self.autoSendSelection = 1
self.toolbarSelection = 0
self.colorSettings = None
self.selectedSchemaIndex = 0
self.graph = OWTimeDataVisualizerGraph(self, self.mainArea, "Time Data Visualizer")
self.data = None
self.subsetData = None
#load settings
self.loadSettings()
#GUI
self.tabs = OWGUI.tabWidget(self.controlArea)
self.GeneralTab = OWGUI.createTabPage(self.tabs, "Main")
self.SettingsTab = OWGUI.createTabPage(self.tabs, "Settings")
#add a graph widget
self.mainArea.layout().addWidget(self.graph)
self.connect(self.graphButton, SIGNAL("clicked()"), self.graph.saveToFile)
#x attribute
self.attrX = ""
box = OWGUI.widgetBox(self.GeneralTab, "Time Attribute")
# add an option to use the index of the example as time stamp
#OWGUI.checkBox(box, self, 'graph.use', 'X axis title', callback = self.graph.setShowXaxisTitle)
self.timeCombo = OWGUI.comboBox(box, self, "graph.timeAttr", callback = self.majorUpdateGraph, sendSelectedValue = 1, valueType = str)
self.colorCombo = OWGUI.comboBox(self.GeneralTab, self, "graph.colorAttr", "Point Color", callback = self.updateGraph, sendSelectedValue = 1, valueType = str)
# y attributes
box = OWGUI.widgetBox(self.GeneralTab, "Visualized attributes")
OWGUI.listBox(box, self, "graph.shownAttributeIndices", "graph.attributes", selectionMode = QListWidget.ExtendedSelection, sizeHint = QSize(150, 250))
OWGUI.button(box, self, "Update listbox changes", callback = self.majorUpdateGraph)
# zooming / selection
self.zoomSelectToolbar = OWToolbars.ZoomSelectToolbar(self, self.GeneralTab, self.graph, self.autoSendSelection)
self.connect(self.zoomSelectToolbar.buttonSendSelections, SIGNAL("clicked()"), self.sendSelections)
# ####################################
# SETTINGS TAB
# point width
pointBox = OWGUI.widgetBox(self.SettingsTab, "Point properties")
OWGUI.hSlider(pointBox, self, 'graph.pointWidth', label = "Symbol size: ", minValue=1, maxValue=10, step=1, callback = self.pointSizeChange)
OWGUI.hSlider(pointBox, self, 'graph.alphaValue', label = "Transparency: ", minValue=0, maxValue=255, step=10, callback = self.alphaChange)
# general graph settings
box4 = OWGUI.widgetBox(self.SettingsTab, "General graph settings")
OWGUI.checkBox(box4, self, 'graph.drawLines', 'Draw lines', callback = self.updateGraph)
OWGUI.checkBox(box4, self, 'graph.drawPoints', 'Draw points (slower)', callback = self.updateGraph)
OWGUI.checkBox(box4, self, 'graph.trackExamples', 'Track examples', callback = self.updateGraph)
OWGUI.checkBox(box4, self, 'graph.showGrayRects', 'Show gray rectangles', callback = self.updateGraph)
OWGUI.checkBox(box4, self, 'graph.showXaxisTitle', 'Show x axis title', callback = self.graph.setShowXaxisTitle)
OWGUI.checkBox(box4, self, 'graph.showLegend', 'Show legend', callback = self.updateGraph)
OWGUI.checkBox(box4, self, 'graph.useAntialiasing', 'Use antialiasing', callback = self.antialiasingChange)
self.colorButtonsBox = OWGUI.widgetBox(self.SettingsTab, "Colors", orientation = "horizontal")
OWGUI.button(self.colorButtonsBox, self, "Set Colors", self.setColors, tooltip = "Set the canvas background color, grid color and color palette for coloring continuous variables", debuggingEnabled = 0)
box5 = OWGUI.widgetBox(self.SettingsTab, "Tooltips settings")
OWGUI.comboBox(box5, self, "graph.tooltipKind", items = ["Don't Show Tooltips", "Show Visible Attributes", "Show All Attributes"], callback = self.updateGraph)
OWGUI.checkBox(self.SettingsTab, self, 'autoSendSelection', 'Auto send selected data', box = "Data selection", callback = self.setAutoSendSelection, tooltip = "Send signals with selected data whenever the selection changes")
self.graph.selectionChangedCallback = self.setAutoSendSelection
OWGUI.rubber(self.GeneralTab)
OWGUI.rubber(self.SettingsTab)
self.icons = self.createAttributeIconDict()
self.activateLoadedSettings()
self.resize(700, 550)
def activateLoadedSettings(self):
dlg = self.createColorDialog()
self.graph.contPalette = dlg.getContinuousPalette("contPalette")
self.graph.discPalette = dlg.getDiscretePalette("discPalette")
self.graph.setCanvasBackground(dlg.getColor("Canvas"))
apply([self.zoomSelectToolbar.actionZooming, self.zoomSelectToolbar.actionRectangleSelection, self.zoomSelectToolbar.actionPolygonSelection][self.toolbarSelection], [])
def settingsFromWidgetCallback(self, handler, context):
context.selectionPolygons = []
for curve in self.graph.selectionCurveList:
xs = [curve.x(i) for i in range(curve.dataSize())]
ys = [curve.y(i) for i in range(curve.dataSize())]
context.selectionPolygons.append((xs, ys))
def settingsToWidgetCallback(self, handler, context):
selections = getattr(context, "selectionPolygons", [])
for (xs, ys) in selections:
c = SelectionCurve("")
c.setData(xs,ys)
c.attach(self.graph)
self.graph.selectionCurveList.append(c)
# ##############################################################################################################################################################
# SCATTERPLOT SIGNALS
# ##############################################################################################################################################################
def resetGraphData(self):
self.graph.rescaleData()
self.majorUpdateGraph()
# receive new data and update all fields
def setData(self, data, onlyDataSubset = 0):
if data and (len(data) == 0 or len(data.domain) == 0):
data = None
if self.data != None and data != None and self.data.checksum() == data.checksum():
return # check if the new data set is the same as the old one
self.closeContext()
sameDomain = self.data and data and data.domain.checksum() == self.data.domain.checksum() # preserve attribute choice if the domain is the same
self.data = data
if not sameDomain:
self.initAttrValues()
self.openContext("", data)
# set an example table with a data subset subset of the data. if called by a visual classifier, the update parameter will be 0
def setSubsetData(self, data):
if self.subsetData != None and data != None and self.subsetData.checksum() == data.checksum():
return # check if the new data set is the same as the old one
try:
subsetData = data.select(self.data.domain)
self.warning(10)
except:
subsetData = None
self.warning(10, data and "'Examples' and 'Example Subset' data do not have compatible domains. Unable to draw 'Example Subset' data." or "")
self.subsetData = subsetData
# this is called by OWBaseWidget after setData and setSubsetData are called. this way the graph is updated only once
def handleNewSignals(self):
self.graph.clear()
self.graph.setData(self.data, self.subsetData)
self.majorUpdateGraph()
self.sendSelections()
# receive information about which attributes we want to show on x and y axis
def setShownAttributes(self, list):
if not self.data or not list: return
self.graph.shownAttributeIndices = [i for i in range(len(self.data.domain)) if self.data.domain[i].name in list]
self.majorUpdateGraph()
# send signals with selected and unselected examples as two datasets
def sendSelections(self):
pass
# (selected, unselected) = self.graph.getSelectionsAsExampleTables([self.attrX, self.attrY])
# self.send("Selected Data",selected)
# self.send("Other Data",unselected)
# ##############################################################################################################################################################
# ATTRIBUTE SELECTION
# ##############################################################################################################################################################
def initAttrValues(self):
self.graph.attributes = []
self.graph.shownAttributeIndices = []
self.timeCombo.clear()
self.colorCombo.clear()
self.graph.timeAttr = None
self.graph.colorAttr = None
self.colorCombo.addItem("(Same color)")
if self.data == None: return
domain = self.data.domain
for attr in domain:
self.timeCombo.addItem(self.icons[attr.varType], attr.name)
self.colorCombo.addItem(self.icons[attr.varType], attr.name)
self.graph.attributes = [(domain[a].name, domain[a].varType) for a in domain]
self.graph.shownAttributeIndices = range(min(10, len(self.graph.attributes)))
self.graph.timeAttr = domain[0].name
self.graph.colorAttr = "(Same color)"
def majorUpdateGraph(self):
self.graph.zoomStack = []
self.graph.removeAllSelections()
self.updateGraph(setScale = 1)
def updateGraph(self, **args):
if not self.data:
return
self.graph.updateData(**args)
# ##############################################################################################################################################################
# SCATTERPLOT SETTINGS
# ##############################################################################################################################################################
def pointSizeChange(self):
for curve in self.graph.itemList():
if type(curve) == QwtPlotCurve:
curve.symbol().setSize(self.graph.pointWidth)
self.graph.replot()
def alphaChange(self):
for curve in self.graph.itemList():
if type(curve) == QwtPlotCurve:
brushColor = curve.symbol().brush().color()
penColor = curve.symbol().pen().color()
penColor2 = curve.pen().color()
brushColor.setAlpha(self.graph.alphaValue)
penColor.setAlpha(self.graph.alphaValue)
penColor2.setAlpha(self.graph.alphaValue)
curve.symbol().setBrush(QBrush(brushColor))
curve.symbol().setPen(QPen(penColor))
curve.setPen(QPen(penColor2))
self.graph.replot()
def antialiasingChange(self):
for curve in self.graph.itemList():
if type(curve) == QwtPlotCurve:
curve.setRenderHint(QwtPlotItem.RenderAntialiased, self.graph.useAntialiasing)
self.graph.replot()
def setAutoSendSelection(self):
if self.autoSendSelection:
self.zoomSelectToolbar.buttonSendSelections.setEnabled(0)
self.sendSelections()
else:
self.zoomSelectToolbar.buttonSendSelections.setEnabled(1)
def setColors(self):
dlg = self.createColorDialog()
if dlg.exec_():
self.colorSettings = dlg.getColorSchemas()
self.selectedSchemaIndex = dlg.selectedSchemaIndex
self.graph.contPalette = dlg.getContinuousPalette("contPalette")
self.graph.discPalette = dlg.getDiscretePalette("discPalette")
self.graph.setCanvasBackground(dlg.getColor("Canvas"))
self.graph.setGridColor(QPen(dlg.getColor("Grid")))
self.updateGraph()
def createColorDialog(self):
c = OWColorPalette.ColorPaletteDlg(self, "Color palette")
c.createDiscretePalette("discPalette", "Discrete Palette")
c.createContinuousPalette("contPalette", "Continuous Palette")
box = c.createBox("otherColors", "Other Colors")
c.createColorButton(box, "Canvas", "Canvas color", Qt.white)
box.layout().addSpacing(5)
c.createColorButton(box, "Grid", "Grid color", Qt.black)
box.layout().addSpacing(5)
#box.adjustSize()
c.setColorSchemas(self.colorSettings, self.selectedSchemaIndex)
return c
def closeEvent(self, ce):
OWWidget.closeEvent(self, ce)
def sendReport(self):
self.reportSettings("",
[("Time attribute", self.graph.timeAttr),
self.graph.colorAttr != "(Same color)" and ("Color", self.graph.colorAttr)])
self.reportRaw("<br/>")
self.reportImage(self.graph.saveToFileDirect, QSize(400, 400))
class OWTimeDataVisualizer(OWWidget):
settingsList = [
"graph.pointWidth", "graph.showXaxisTitle", "graph.showLegend",
"graph.useAntialiasing", 'graph.drawPoints', 'graph.drawLines',
"graph.alphaValue", "autoSendSelection", "toolbarSelection",
"graph.trackExamples"
"colorSettings", "selectedSchemaIndex"
]
contextHandlers = {
"":
DomainContextHandler("", [
"graph.timeAttr", "graph.attributes", "graph.shownAttributeIndices"
],
loadImperfect=0)
}
def __init__(self, parent=None, signalManager=None):
OWWidget.__init__(self, parent, signalManager, "Time Data Visualizer",
TRUE)
self.inputs = [("Examples", ExampleTable, self.setData, Default),
("Example Subset", ExampleTable, self.setSubsetData),
("Attribute selection", AttributeList,
self.setShownAttributes)]
self.outputs = [("Selected Examples", ExampleTable),
("Unselected Examples", ExampleTable)]
# local variables
self.autoSendSelection = 1
self.toolbarSelection = 0
self.colorSettings = None
self.selectedSchemaIndex = 0
self.graph = OWTimeDataVisualizerGraph(self, self.mainArea,
"Time Data Visualizer")
self.data = None
self.subsetData = None
#load settings
self.loadSettings()
#GUI
self.tabs = OWGUI.tabWidget(self.controlArea)
self.GeneralTab = OWGUI.createTabPage(self.tabs, "Main")
self.SettingsTab = OWGUI.createTabPage(self.tabs, "Settings")
#add a graph widget
self.mainArea.layout().addWidget(self.graph)
self.connect(self.graphButton, SIGNAL("clicked()"),
self.graph.saveToFile)
#x attribute
self.attrX = ""
box = OWGUI.widgetBox(self.GeneralTab, "Time Attribute")
# add an option to use the index of the example as time stamp
#OWGUI.checkBox(box, self, 'graph.use', 'X axis title', callback = self.graph.setShowXaxisTitle)
self.timeCombo = OWGUI.comboBox(box,
self,
"graph.timeAttr",
callback=self.majorUpdateGraph,
sendSelectedValue=1,
valueType=str)
self.colorCombo = OWGUI.comboBox(self.GeneralTab,
self,
"graph.colorAttr",
"Point Color",
callback=self.updateGraph,
sendSelectedValue=1,
valueType=str)
# y attributes
box = OWGUI.widgetBox(self.GeneralTab, "Visualized attributes")
OWGUI.listBox(box,
self,
"graph.shownAttributeIndices",
"graph.attributes",
selectionMode=QListWidget.ExtendedSelection,
sizeHint=QSize(150, 250))
OWGUI.button(box,
self,
"Update listbox changes",
callback=self.majorUpdateGraph)
# zooming / selection
self.zoomSelectToolbar = OWToolbars.ZoomSelectToolbar(
self, self.GeneralTab, self.graph, self.autoSendSelection)
self.connect(self.zoomSelectToolbar.buttonSendSelections,
SIGNAL("clicked()"), self.sendSelections)
# ####################################
# SETTINGS TAB
# point width
pointBox = OWGUI.widgetBox(self.SettingsTab, "Point properties")
OWGUI.hSlider(pointBox,
self,
'graph.pointWidth',
label="Symbol size: ",
minValue=1,
maxValue=10,
step=1,
callback=self.pointSizeChange)
OWGUI.hSlider(pointBox,
self,
'graph.alphaValue',
label="Transparency: ",
minValue=0,
maxValue=255,
step=10,
callback=self.alphaChange)
# general graph settings
box4 = OWGUI.widgetBox(self.SettingsTab, "General graph settings")
OWGUI.checkBox(box4,
self,
'graph.drawLines',
'Draw lines',
callback=self.updateGraph)
OWGUI.checkBox(box4,
self,
'graph.drawPoints',
'Draw points (slower)',
callback=self.updateGraph)
OWGUI.checkBox(box4,
self,
'graph.trackExamples',
'Track examples',
callback=self.updateGraph)
OWGUI.checkBox(box4,
self,
'graph.showGrayRects',
'Show gray rectangles',
callback=self.updateGraph)
OWGUI.checkBox(box4,
self,
'graph.showXaxisTitle',
'Show x axis title',
callback=self.graph.setShowXaxisTitle)
OWGUI.checkBox(box4,
self,
'graph.showLegend',
'Show legend',
callback=self.updateGraph)
OWGUI.checkBox(box4,
self,
'graph.useAntialiasing',
'Use antialiasing',
callback=self.antialiasingChange)
self.colorButtonsBox = OWGUI.widgetBox(self.SettingsTab,
"Colors",
orientation="horizontal")
OWGUI.button(
self.colorButtonsBox,
self,
"Set Colors",
self.setColors,
tooltip=
"Set the canvas background color, grid color and color palette for coloring continuous variables",
debuggingEnabled=0)
box5 = OWGUI.widgetBox(self.SettingsTab, "Tooltips settings")
OWGUI.comboBox(box5,
self,
"graph.tooltipKind",
items=[
"Don't Show Tooltips", "Show Visible Attributes",
"Show All Attributes"
],
callback=self.updateGraph)
OWGUI.checkBox(
self.SettingsTab,
self,
'autoSendSelection',
'Auto send selected data',
box="Data selection",
callback=self.setAutoSendSelection,
tooltip=
"Send signals with selected data whenever the selection changes")
self.graph.selectionChangedCallback = self.setAutoSendSelection
OWGUI.rubber(self.GeneralTab)
OWGUI.rubber(self.SettingsTab)
self.icons = self.createAttributeIconDict()
self.activateLoadedSettings()
self.resize(700, 550)
def activateLoadedSettings(self):
dlg = self.createColorDialog()
self.graph.contPalette = dlg.getContinuousPalette("contPalette")
self.graph.discPalette = dlg.getDiscretePalette("discPalette")
self.graph.setCanvasBackground(dlg.getColor("Canvas"))
[
self.zoomSelectToolbar.actionZooming,
self.zoomSelectToolbar.actionRectangleSelection,
self.zoomSelectToolbar.actionPolygonSelection
][self.toolbarSelection](*[])
def settingsFromWidgetCallback(self, handler, context):
context.selectionPolygons = []
for curve in self.graph.selectionCurveList:
xs = [curve.x(i) for i in range(curve.dataSize())]
ys = [curve.y(i) for i in range(curve.dataSize())]
context.selectionPolygons.append((xs, ys))
def settingsToWidgetCallback(self, handler, context):
selections = getattr(context, "selectionPolygons", [])
for (xs, ys) in selections:
c = SelectionCurve("")
c.setData(xs, ys)
c.attach(self.graph)
self.graph.selectionCurveList.append(c)
# ##############################################################################################################################################################
# SCATTERPLOT SIGNALS
# ##############################################################################################################################################################
def resetGraphData(self):
self.graph.rescaleData()
self.majorUpdateGraph()
# receive new data and update all fields
def setData(self, data, onlyDataSubset=0):
if data and (len(data) == 0 or len(data.domain) == 0):
data = None
if self.data != None and data != None and self.data.checksum(
) == data.checksum():
return # check if the new data set is the same as the old one
self.closeContext()
sameDomain = self.data and data and data.domain.checksum(
) == self.data.domain.checksum(
) # preserve attribute choice if the domain is the same
self.data = data
if not sameDomain:
self.initAttrValues()
self.openContext("", data)
# set an example table with a data subset subset of the data. if called by a visual classifier, the update parameter will be 0
def setSubsetData(self, data):
if self.subsetData != None and data != None and self.subsetData.checksum(
) == data.checksum():
return # check if the new data set is the same as the old one
try:
subsetData = data.select(self.data.domain)
self.warning(10)
except:
subsetData = None
self.warning(
10, data and
"'Examples' and 'Example Subset' data do not have compatible domains. Unable to draw 'Example Subset' data."
or "")
self.subsetData = subsetData
# this is called by OWBaseWidget after setData and setSubsetData are called. this way the graph is updated only once
def handleNewSignals(self):
self.graph.clear()
self.graph.setData(self.data, self.subsetData)
self.majorUpdateGraph()
self.sendSelections()
# receive information about which attributes we want to show on x and y axis
def setShownAttributes(self, list):
if not self.data or not list: return
self.graph.shownAttributeIndices = [
i for i in range(len(self.data.domain))
if self.data.domain[i].name in list
]
self.majorUpdateGraph()
# send signals with selected and unselected examples as two datasets
def sendSelections(self):
pass
# (selected, unselected) = self.graph.getSelectionsAsExampleTables([self.attrX, self.attrY])
# self.send("Selected Examples",selected)
# self.send("Unselected Examples",unselected)
# ##############################################################################################################################################################
# ATTRIBUTE SELECTION
# ##############################################################################################################################################################
def initAttrValues(self):
self.graph.attributes = []
self.graph.shownAttributeIndices = []
self.timeCombo.clear()
self.colorCombo.clear()
self.graph.timeAttr = None
self.graph.colorAttr = None
self.colorCombo.addItem("(Same color)")
if self.data == None: return
domain = self.data.domain
for attr in domain:
self.timeCombo.addItem(self.icons[attr.varType], attr.name)
self.colorCombo.addItem(self.icons[attr.varType], attr.name)
self.graph.attributes = [(domain[a].name, domain[a].varType)
for a in domain]
self.graph.shownAttributeIndices = list(
range(min(10, len(self.graph.attributes))))
self.graph.timeAttr = domain[0].name
self.graph.colorAttr = "(Same color)"
def majorUpdateGraph(self):
self.graph.zoomStack = []
self.graph.removeAllSelections()
self.updateGraph(setScale=1)
def updateGraph(self, **args):
if not self.data:
return
self.graph.updateData(**args)
# ##############################################################################################################################################################
# SCATTERPLOT SETTINGS
# ##############################################################################################################################################################
def pointSizeChange(self):
for curve in self.graph.itemList():
if type(curve) == QwtPlotCurve:
curve.symbol().setSize(self.graph.pointWidth)
self.graph.replot()
def alphaChange(self):
for curve in self.graph.itemList():
if type(curve) == QwtPlotCurve:
brushColor = curve.symbol().brush().color()
penColor = curve.symbol().pen().color()
penColor2 = curve.pen().color()
brushColor.setAlpha(self.graph.alphaValue)
penColor.setAlpha(self.graph.alphaValue)
penColor2.setAlpha(self.graph.alphaValue)
curve.symbol().setBrush(QBrush(brushColor))
curve.symbol().setPen(QPen(penColor))
curve.setPen(QPen(penColor2))
self.graph.replot()
def antialiasingChange(self):
for curve in self.graph.itemList():
if type(curve) == QwtPlotCurve:
curve.setRenderHint(QwtPlotItem.RenderAntialiased,
self.graph.useAntialiasing)
self.graph.replot()
def setAutoSendSelection(self):
if self.autoSendSelection:
self.zoomSelectToolbar.buttonSendSelections.setEnabled(0)
self.sendSelections()
else:
self.zoomSelectToolbar.buttonSendSelections.setEnabled(1)
def setColors(self):
dlg = self.createColorDialog()
if dlg.exec_():
self.colorSettings = dlg.getColorSchemas()
self.selectedSchemaIndex = dlg.selectedSchemaIndex
self.graph.contPalette = dlg.getContinuousPalette("contPalette")
self.graph.discPalette = dlg.getDiscretePalette("discPalette")
self.graph.setCanvasBackground(dlg.getColor("Canvas"))
self.graph.setGridColor(QPen(dlg.getColor("Grid")))
self.updateGraph()
def createColorDialog(self):
c = OWColorPalette.ColorPaletteDlg(self, "Color palette")
c.createDiscretePalette("discPalette", "Discrete Palette")
c.createContinuousPalette("contPalette", "Continuous Palette")
box = c.createBox("otherColors", "Other Colors")
c.createColorButton(box, "Canvas", "Canvas color", Qt.white)
box.layout().addSpacing(5)
c.createColorButton(box, "Grid", "Grid color", Qt.black)
box.layout().addSpacing(5)
#box.adjustSize()
c.setColorSchemas(self.colorSettings, self.selectedSchemaIndex)
return c
def closeEvent(self, ce):
OWWidget.closeEvent(self, ce)
def sendReport(self):
self.reportSettings("", [("Time attribute", self.graph.timeAttr),
self.graph.colorAttr != "(Same color)" and
("Color", self.graph.colorAttr)])
self.reportRaw("<br/>")
self.reportImage(self.graph.saveToFileDirect, QSize(400, 400))
