Python LegendItem.anchor方法代码示例

# 需要导入模块: from Orange.widgets.visualize.owlinearprojection import LegendItem [as 别名]
# 或者: from Orange.widgets.visualize.owlinearprojection.LegendItem import anchor [as 别名]

#.........这里部分代码省略.........
        w = QtGui.QLabel()
        w.setSizePolicy(QtGui.QSizePolicy.Expanding, QtGui.QSizePolicy.Fixed)
        self.mainArea.layout().addWidget(w, Qt.AlignCenter)

        self.plot = pg.PlotItem()
        self.plot.hideButtons()
        plotview.setCentralItem(self.plot)

        self.plot_prob = pg.ViewBox()
        self.plot.hideAxis('right')
        self.plot.scene().addItem(self.plot_prob)
        self.plot.getAxis("right").linkToView(self.plot_prob)
        self.plot.getAxis("right").setLabel("Probability")
        self.plot_prob.setZValue(10)
        self.plot_prob.setXLink(self.plot)
        self.update_views()
        self.plot.vb.sigResized.connect(self.update_views)
        self.plot_prob.setRange(yRange=[0,1])

        def disable_mouse(plot):
            plot.setMouseEnabled(False, False)
            plot.setMenuEnabled(False)

        disable_mouse(self.plot.getViewBox())
        disable_mouse(self.plot_prob)

        pen = QtGui.QPen(self.palette().color(QtGui.QPalette.Text))
        for axis in ("left", "bottom"):
            self.plot.getAxis(axis).setPen(pen)

        self._legend = LegendItem()
        self._legend.setParentItem(self.plot.getViewBox())
        self._legend.hide()
        self._legend.anchor((1, 0), (1, 0))
        self.graphButton.clicked.connect(self.save_graph)

    def update_views(self):
        self.plot_prob.setGeometry(self.plot.vb.sceneBoundingRect())
        self.plot_prob.linkedViewChanged(self.plot.vb, self.plot_prob.XAxis)

    def set_data(self, data):
        self.closeContext()
        self.clear()
        self.data = data
        if self.data is not None:
            domain = self.data.domain
            self.varmodel[:] = list(domain)

            self.groupvarview.clear()
            self.groupvarmodel = \
                ["(None)"] + [var for var in domain if var.is_discrete]
            self.groupvarview.addItem("(None)")
            for var in self.groupvarmodel[1:]:
                self.groupvarview.addItem(self.icons[var], var.name)
            if domain.has_discrete_class:
                self.groupvar_idx = \
                    self.groupvarmodel.index(domain.class_var)
            self.openContext(domain)
            self.variable_idx = min(max(self.variable_idx, 0),
                                    len(self.varmodel) - 1)
            self.groupvar_idx = min(max(self.groupvar_idx, 0),
                                    len(self.groupvarmodel) - 1)
            itemmodels.select_row(self.varview, self.variable_idx)
            self._setup()

    def clear(self):

# 需要导入模块: from Orange.widgets.visualize.owlinearprojection import LegendItem [as 别名]
# 或者: from Orange.widgets.visualize.owlinearprojection.LegendItem import anchor [as 别名]

#.........这里部分代码省略.........
        self.plot = self.ploti.vb
        self.ploti.hideButtons()
        self.plotview.setCentralItem(self.ploti)

        self.plot_prob = pg.ViewBox()
        self.ploti.hideAxis('right')
        self.ploti.scene().addItem(self.plot_prob)
        self.ploti.getAxis("right").linkToView(self.plot_prob)
        self.ploti.getAxis("right").setLabel("Probability")
        self.plot_prob.setZValue(10)
        self.plot_prob.setXLink(self.ploti)
        self.update_views()
        self.ploti.vb.sigResized.connect(self.update_views)
        self.plot_prob.setRange(yRange=[0, 1])

        def disable_mouse(plot):
            plot.setMouseEnabled(False, False)
            plot.setMenuEnabled(False)

        disable_mouse(self.plot)
        disable_mouse(self.plot_prob)

        self.tooltip_items = []
        self.plot.scene().installEventFilter(
            HelpEventDelegate(self.help_event, self))

        pen = QPen(self.palette().color(QPalette.Text))
        for axis in ("left", "bottom"):
            self.ploti.getAxis(axis).setPen(pen)

        self._legend = LegendItem()
        self._legend.setParentItem(self.plot)
        self._legend.hide()
        self._legend.anchor((1, 0), (1, 0))

    def update_views(self):
        self.plot_prob.setGeometry(self.plot.sceneBoundingRect())
        self.plot_prob.linkedViewChanged(self.plot, self.plot_prob.XAxis)

    @Inputs.data
    def set_data(self, data):
        self.closeContext()
        self.clear()
        self.warning()
        self.data = data
        self.distributions = None
        self.contingencies = None
        if self.data is not None:
            if not self.data:
                self.warning("Empty input data cannot be visualized")
                return
            domain = self.data.domain
            self.varmodel[:] = list(domain.variables) + \
                               [meta for meta in domain.metas
                                if meta.is_continuous or meta.is_discrete]
            self.groupvarview.clear()
            self.groupvarmodel = \
                ["(None)"] + [var for var in domain.variables if var.is_discrete] + \
                [meta for meta in domain.metas if meta.is_discrete]
            self.groupvarview.addItem("(None)")
            for var in self.groupvarmodel[1:]:
                self.groupvarview.addItem(self.icons[var], var.name)
            if domain.has_discrete_class:
                self.groupvar_idx = \
                    self.groupvarmodel[1:].index(domain.class_var) + 1
            self.openContext(domain)

# 需要导入模块: from Orange.widgets.visualize.owlinearprojection import LegendItem [as 别名]
# 或者: from Orange.widgets.visualize.owlinearprojection.LegendItem import anchor [as 别名]
class OWMDS(widget.OWWidget):
    name = "MDS"
    description = "Two-dimensional data projection by multidimensional " \
                  "scaling constructed from a distance matrix."
    icon = "icons/MDS.svg"
    inputs = [("Data", Orange.data.Table, "set_data"),
              ("Distances", Orange.misc.DistMatrix, "set_disimilarity")]
    outputs = [("Data", Orange.data.Table, widget.Default),
               ("Data Subset", Orange.data.Table)]

    #: Initialization type
    PCA, Random = 0, 1

    #: Refresh rate
    RefreshRate = [
        ("Every iteration", 1),
        ("Every 5 steps", 5),
        ("Every 10 steps", 10),
        ("Every 25 steps", 25),
        ("Every 50 steps", 50),
        ("None", -1)
    ]

    #: Runtime state
    Running, Finished, Waiting = 1, 2, 3

    settingsHandler = settings.DomainContextHandler()

    max_iter = settings.Setting(300)
    initialization = settings.Setting(PCA)
    refresh_rate = settings.Setting(3)

    # output embedding role.
    NoRole, AttrRole, MetaRole = 0, 1, 2

    output_embedding_role = settings.Setting(1)
    autocommit = settings.Setting(True)

    color_index = settings.ContextSetting(0, not_attribute=True)
    shape_index = settings.ContextSetting(0, not_attribute=True)
    size_index = settings.ContextSetting(0, not_attribute=True)
    label_index = settings.ContextSetting(0, not_attribute=True)

    symbol_size = settings.Setting(8)
    symbol_opacity = settings.Setting(230)

    legend_anchor = settings.Setting(((1, 0), (1, 0)))

    def __init__(self, parent=None):
        super().__init__(parent)
        self.matrix = None
        self.data = None
        self.matrix_data = None
        self.signal_data = None

        self._pen_data = None
        self._shape_data = None
        self._size_data = None
        self._label_data = None
        self._scatter_item = None
        self._legend_item = None
        self._selection_mask = None
        self._invalidated = False
        self._effective_matrix = None

        self.__update_loop = None
        self.__state = OWMDS.Waiting
        self.__in_next_step = False

        box = gui.widgetBox(self.controlArea, "MDS Optimization")
        form = QtGui.QFormLayout(
            labelAlignment=Qt.AlignLeft,
            formAlignment=Qt.AlignLeft,
            fieldGrowthPolicy=QtGui.QFormLayout.AllNonFixedFieldsGrow,
        )

        form.addRow("Max iterations:",
                    gui.spin(box, self, "max_iter", 10, 10 ** 4, step=1))

        form.addRow("Initialization",
                    gui.comboBox(box, self, "initialization",
                                 items=["PCA (Torgerson)", "Random"],
                                 callback=self.__invalidate_embedding))

        box.layout().addLayout(form)
        form.addRow("Refresh",
                    gui.comboBox(
                        box, self, "refresh_rate",
                        items=[t for t, _ in OWMDS.RefreshRate],
                        callback=self.__invalidate_refresh))

        self.runbutton = gui.button(
            box, self, "Run", callback=self._toggle_run)

        box = gui.widgetBox(self.controlArea, "Graph")
        self.colorvar_model = itemmodels.VariableListModel()
        cb = gui.comboBox(box, self, "color_index", box="Color",
                          callback=self._on_color_index_changed)
        cb.setModel(self.colorvar_model)
        cb.box.setFlat(True)
#.........这里部分代码省略.........

# 需要导入模块: from Orange.widgets.visualize.owlinearprojection import LegendItem [as 别名]
# 或者: from Orange.widgets.visualize.owlinearprojection.LegendItem import anchor [as 别名]
class OWMDS(widget.OWWidget):
    name = "MDS"
    description = "Two-dimensional data projection by multidimensional " "scaling constructed from a distance matrix."
    icon = "icons/MDS.svg"
    inputs = [("Data", Orange.data.Table, "set_data"), ("Distances", Orange.misc.DistMatrix, "set_disimilarity")]
    outputs = [("Data", Orange.data.Table, widget.Default), ("Selected Data", Orange.data.Table)]

    #: Initialization type
    PCA, Random = 0, 1

    #: Refresh rate
    RefreshRate = [
        ("Every iteration", 1),
        ("Every 5 steps", 5),
        ("Every 10 steps", 10),
        ("Every 25 steps", 25),
        ("Every 50 steps", 50),
        ("None", -1),
    ]

    #: Runtime state
    Running, Finished, Waiting = 1, 2, 3

    settingsHandler = settings.DomainContextHandler()

    max_iter = settings.Setting(300)
    initialization = settings.Setting(PCA)
    refresh_rate = settings.Setting(3)

    # output embedding role.
    NoRole, AttrRole, AddAttrRole, MetaRole = 0, 1, 2, 3

    output_embedding_role = settings.Setting(2)
    autocommit = settings.Setting(True)

    color_value = settings.ContextSetting("")
    shape_value = settings.ContextSetting("")
    size_value = settings.ContextSetting("")
    label_value = settings.ContextSetting("")

    symbol_size = settings.Setting(8)
    symbol_opacity = settings.Setting(230)
    connected_pairs = settings.Setting(5)
    spread_equal_points = settings.Setting(False)

    legend_anchor = settings.Setting(((1, 0), (1, 0)))

    want_graph = True

    def __init__(self, parent=None):
        super().__init__(parent)
        self.matrix = None
        self.data = None
        self.matrix_data = None
        self.signal_data = None

        self._pen_data = None
        self._shape_data = None
        self._size_data = None
        self._label_data = None
        self._similar_pairs = None
        self._scatter_item = None
        self._legend_item = None
        self._selection_mask = None
        self._invalidated = False
        self._effective_matrix = None

        self.__update_loop = None
        self.__state = OWMDS.Waiting
        self.__in_next_step = False
        self.__draw_similar_pairs = False

        box = gui.widgetBox(self.controlArea, "MDS Optimization")
        form = QtGui.QFormLayout(
            labelAlignment=Qt.AlignLeft,
            formAlignment=Qt.AlignLeft,
            fieldGrowthPolicy=QtGui.QFormLayout.AllNonFixedFieldsGrow,
            verticalSpacing=10,
        )

        form.addRow("Max iterations:", gui.spin(box, self, "max_iter", 10, 10 ** 4, step=1))

        form.addRow(
            "Initialization",
            gui.comboBox(
                box, self, "initialization", items=["PCA (Torgerson)", "Random"], callback=self.__invalidate_embedding
            ),
        )

        box.layout().addLayout(form)
        form.addRow(
            "Refresh",
            gui.comboBox(
                box, self, "refresh_rate", items=[t for t, _ in OWMDS.RefreshRate], callback=self.__invalidate_refresh
            ),
        )
        gui.separator(box, 10)
        gui.checkBox(
            box, self, "spread_equal_points", "Spread points at zero-distances", callback=self.__invalidate_embedding
        )
#.........这里部分代码省略.........

# 需要导入模块: from Orange.widgets.visualize.owlinearprojection import LegendItem [as 别名]
# 或者: from Orange.widgets.visualize.owlinearprojection.LegendItem import anchor [as 别名]
class OWDistributions(widget.OWWidget):
    name = "Distributions"
    description = "Display value distributions of a data feature in a graph."
    icon = "icons/Distribution.svg"
    priority = 100
    inputs = [InputSignal("Data", Orange.data.Table, "set_data",
                          doc="Set the input data set")]

    settingsHandler = settings.DomainContextHandler()
    #: Selected variable index
    variable_idx = settings.ContextSetting(-1)
    #: Selected group variable
    groupvar_idx = settings.ContextSetting(0)

    Hist, ASH, Kernel = 0, 1, 2
    #: Continuous variable density estimation method
    cont_est_type = settings.Setting(ASH)
    relative_freq = settings.Setting(False)

    def __init__(self, parent=None):
        super().__init__(parent)
        self.data = None

        self.distributions = None
        self.contingencies = None
        self.var = self.cvar = None
        varbox = gui.widgetBox(self.controlArea, "Variable")

        self.varmodel = itemmodels.VariableListModel()
        self.groupvarmodel = itemmodels.VariableListModel()

        self.varview = QtGui.QListView(
            selectionMode=QtGui.QListView.SingleSelection)
        self.varview.setSizePolicy(
            QtGui.QSizePolicy.Minimum, QtGui.QSizePolicy.Expanding)
        self.varview.setModel(self.varmodel)
        self.varview.setSelectionModel(
            itemmodels.ListSingleSelectionModel(self.varmodel))
        self.varview.selectionModel().selectionChanged.connect(
            self._on_variable_idx_changed)
        varbox.layout().addWidget(self.varview)
        gui.separator(varbox, 8, 8)
        gui.comboBox(
            varbox, self, "cont_est_type", label="Show continuous variables by",
            valueType=int,
            items=["Histograms", "Average shifted histograms",
                   "Kernel density estimators"],
            callback=self._on_cont_est_type_changed)

        box = gui.widgetBox(self.controlArea, "Group by")
        self.groupvarview = QtGui.QListView(
            selectionMode=QtGui.QListView.SingleSelection)
        self.groupvarview.setFixedHeight(100)
        self.groupvarview.setSizePolicy(
            QtGui.QSizePolicy.Minimum, QtGui.QSizePolicy.Preferred)
        self.groupvarview.setModel(self.groupvarmodel)
        self.groupvarview.selectionModel().selectionChanged.connect(
            self._on_groupvar_idx_changed)
        box.layout().addWidget(self.groupvarview)
        self.cb_rel_freq = gui.checkBox(
            box, self, "relative_freq", "Show relative frequencies",
            callback=self._on_relative_freq_changed)

        plotview = pg.PlotWidget(background=None)
        self.mainArea.layout().addWidget(plotview)
        w = QtGui.QLabel()
        w.setSizePolicy(QtGui.QSizePolicy.Expanding, QtGui.QSizePolicy.Fixed)
        self.mainArea.layout().addWidget(w, Qt.AlignCenter)

        self.plot = pg.PlotItem()
#         self.plot.getViewBox().setMouseEnabled(False, False)
        self.plot.getViewBox().setMenuEnabled(False)
        plotview.setCentralItem(self.plot)

        pen = QtGui.QPen(self.palette().color(QtGui.QPalette.Text))
        for axis in ("left", "bottom"):
            self.plot.getAxis(axis).setPen(pen)

        self._legend = LegendItem()
        self._legend.setParentItem(self.plot.getViewBox())
        self._legend.hide()
        self._legend.anchor((1, 0), (1, 0))

    def set_data(self, data):
        self.closeContext()
        self.clear()
        self.data = data
        if self.data is not None:
            domain = self.data.domain
            self.varmodel[:] = list(domain)
            self.groupvarmodel[:] = \
                ["(None)"] + [var for var in domain if var.is_discrete]
            if domain.has_discrete_class:
                self.groupvar_idx = \
                    list(self.groupvarmodel).index(domain.class_var)
            self.openContext(domain)
            self.variable_idx = min(max(self.variable_idx, 0),
                                    len(self.varmodel) - 1)
            self.groupvar_idx = min(max(self.groupvar_idx, 0),
                                    len(self.groupvarmodel) - 1)
#.........这里部分代码省略.........