def zoom_actions(self, parent):
def zoom(s):
"""
Zoom in/out by factor `s`.
scaleBy scales the view's bounds (the axis range)
"""
self.view_box.scaleBy((1 / s, 1 / s))
def fit_to_view():
self.viewbox.autoRange()
zoom_in = QAction(
"Zoom in", parent, triggered=lambda: zoom(1.25)
)
zoom_in.setShortcuts([QKeySequence(QKeySequence.ZoomIn),
QKeySequence(parent.tr("Ctrl+="))])
zoom_out = QAction(
"Zoom out", parent, shortcut=QKeySequence.ZoomOut,
triggered=lambda: zoom(1 / 1.25)
)
zoom_fit = QAction(
"Fit in view", parent,
shortcut=QKeySequence(Qt.ControlModifier | Qt.Key_0),
triggered=fit_to_view
)
parent.addActions([zoom_in, zoom_out, zoom_fit])
def zoom_actions(self, parent):
def zoom(s):
"""
Zoom in/out by factor `s`.
scaleBy scales the view's bounds (the axis range)
"""
self.view_box.scaleBy((1 / s, 1 / s))
def fit_to_view():
self.viewbox.autoRange()
zoom_in = QAction("Zoom in", parent, triggered=lambda: zoom(1.25))
zoom_in.setShortcuts([
QKeySequence(QKeySequence.ZoomIn),
QKeySequence(parent.tr("Ctrl+="))
])
zoom_out = QAction("Zoom out",
parent,
shortcut=QKeySequence.ZoomOut,
triggered=lambda: zoom(1 / 1.25))
zoom_fit = QAction("Fit in view",
parent,
shortcut=QKeySequence(Qt.ControlModifier
| Qt.Key_0),
triggered=fit_to_view)
parent.addActions([zoom_in, zoom_out, zoom_fit])
def add_zoom_actions(self, menu):
zoom_in = QAction(
"Zoom in", self, triggered=self.plot.vb.set_mode_zooming
)
zoom_in.setShortcuts([Qt.Key_Z, QKeySequence(QKeySequence.ZoomIn)])
zoom_in.setShortcutContext(Qt.WidgetWithChildrenShortcut)
self.addAction(zoom_in)
if menu:
menu.addAction(zoom_in)
zoom_fit = QAction(
"Zoom to fit", self,
triggered=lambda x: (self.plot.vb.autoRange(), self.plot.vb.set_mode_panning())
)
zoom_fit.setShortcuts([Qt.Key_Backspace, QKeySequence(Qt.ControlModifier | Qt.Key_0)])
zoom_fit.setShortcutContext(Qt.WidgetWithChildrenShortcut)
self.addAction(zoom_fit)
if menu:
menu.addAction(zoom_fit)
def add_zoom_actions(self, menu):
zoom_in = QAction(
"Zoom in", self, triggered=self.plot.vb.set_mode_zooming
)
zoom_in.setShortcuts([Qt.Key_Z, QKeySequence(QKeySequence.ZoomIn)])
zoom_in.setShortcutContext(Qt.WidgetWithChildrenShortcut)
self.addAction(zoom_in)
if menu:
menu.addAction(zoom_in)
zoom_fit = QAction(
"Zoom to fit", self,
triggered=lambda x: (self.plot.vb.autoRange(), self.plot.vb.set_mode_panning())
)
zoom_fit.setShortcuts([Qt.Key_Backspace, QKeySequence(Qt.ControlModifier | Qt.Key_0)])
zoom_fit.setShortcutContext(Qt.WidgetWithChildrenShortcut)
self.addAction(zoom_fit)
if menu:
menu.addAction(zoom_fit)
def __init__(self):
super().__init__()
box = gui.vBox(self.mainArea, True, margin=0)
self.graph = OWScatterPlotGraph(self, box, "ScatterPlot")
box.layout().addWidget(self.graph.plot_widget)
plot = self.graph.plot_widget
axispen = QPen(self.palette().color(QPalette.Text))
axis = plot.getAxis("bottom")
axis.setPen(axispen)
axis = plot.getAxis("left")
axis.setPen(axispen)
self.data = None # Orange.data.Table
self.subset_data = None # Orange.data.Table
self.data_metas_X = None # self.data, where primitive metas are moved to X
self.sql_data = None # Orange.data.sql.table.SqlTable
self.attribute_selection_list = None # list of Orange.data.Variable
self.__timer = QTimer(self, interval=1200)
self.__timer.timeout.connect(self.add_data)
common_options = dict(
labelWidth=50, orientation=Qt.Horizontal, sendSelectedValue=True,
valueType=str)
box = gui.vBox(self.controlArea, "Axis Data")
dmod = DomainModel
self.xy_model = DomainModel(dmod.MIXED, valid_types=dmod.PRIMITIVE)
self.cb_attr_x = gui.comboBox(
box, self, "attr_x", label="Axis x:", callback=self.update_attr,
model=self.xy_model, **common_options)
self.cb_attr_y = gui.comboBox(
box, self, "attr_y", label="Axis y:", callback=self.update_attr,
model=self.xy_model, **common_options)
vizrank_box = gui.hBox(box)
gui.separator(vizrank_box, width=common_options["labelWidth"])
self.vizrank, self.vizrank_button = ScatterPlotVizRank.add_vizrank(
vizrank_box, self, "Find Informative Projections", self.set_attr)
gui.separator(box)
gui.valueSlider(
box, self, value='graph.jitter_size', label='Jittering: ',
values=self.jitter_sizes, callback=self.reset_graph_data,
labelFormat=lambda x:
"None" if x == 0 else ("%.1f %%" if x < 1 else "%d %%") % x)
gui.checkBox(
gui.indentedBox(box), self, 'graph.jitter_continuous',
'Jitter numeric values', callback=self.reset_graph_data)
self.sampling = gui.auto_commit(
self.controlArea, self, "auto_sample", "Sample", box="Sampling",
callback=self.switch_sampling, commit=lambda: self.add_data(1))
self.sampling.setVisible(False)
g = self.graph.gui
g.point_properties_box(self.controlArea)
self.models = [self.xy_model] + g.points_models
box = gui.vBox(self.controlArea, "Plot Properties")
g.add_widgets([g.ShowLegend, g.ShowGridLines], box)
gui.checkBox(
box, self, value='graph.tooltip_shows_all',
label='Show all data on mouse hover')
self.cb_class_density = gui.checkBox(
box, self, value='graph.class_density', label='Show class density',
callback=self.update_density)
self.cb_reg_line = gui.checkBox(
box, self, value='graph.show_reg_line',
label='Show regression line', callback=self.update_regression_line)
gui.checkBox(
box, self, 'graph.label_only_selected',
'Label only selected points', callback=self.graph.update_labels)
self.zoom_select_toolbar = g.zoom_select_toolbar(
gui.vBox(self.controlArea, "Zoom/Select"), nomargin=True,
buttons=[g.StateButtonsBegin, g.SimpleSelect, g.Pan, g.Zoom,
g.StateButtonsEnd, g.ZoomReset]
)
buttons = self.zoom_select_toolbar.buttons
buttons[g.Zoom].clicked.connect(self.graph.zoom_button_clicked)
buttons[g.Pan].clicked.connect(self.graph.pan_button_clicked)
buttons[g.SimpleSelect].clicked.connect(self.graph.select_button_clicked)
buttons[g.ZoomReset].clicked.connect(self.graph.reset_button_clicked)
self.controlArea.layout().addStretch(100)
self.icons = gui.attributeIconDict
p = self.graph.plot_widget.palette()
self.graph.set_palette(p)
gui.auto_commit(self.controlArea, self, "auto_send_selection",
"Send Selection", "Send Automatically")
def zoom(s):
"""Zoom in/out by factor `s`."""
viewbox = plot.getViewBox()
# scaleBy scales the view's bounds (the axis range)
viewbox.scaleBy((1 / s, 1 / s))
def fit_to_view():
viewbox = plot.getViewBox()
viewbox.autoRange()
zoom_in = QAction(
"Zoom in", self, triggered=lambda: zoom(1.25)
)
zoom_in.setShortcuts([QKeySequence(QKeySequence.ZoomIn),
QKeySequence(self.tr("Ctrl+="))])
zoom_out = QAction(
"Zoom out", self, shortcut=QKeySequence.ZoomOut,
triggered=lambda: zoom(1 / 1.25)
)
zoom_fit = QAction(
"Fit in view", self,
shortcut=QKeySequence(Qt.ControlModifier | Qt.Key_0),
triggered=fit_to_view
)
self.addActions([zoom_in, zoom_out, zoom_fit])
class SelectTool(DataTool):
cursor = Qt.ArrowCursor
def __init__(self, parent, plot):
super().__init__(parent, plot)
self._item = None
self._start_pos = None
self._selection_rect = None
self._mouse_dragging = False
self._delete_action = QAction("Delete",
self,
shortcutContext=Qt.WindowShortcut)
self._delete_action.setShortcuts(
[QKeySequence.Delete,
QKeySequence("Backspace")])
self._delete_action.triggered.connect(self.delete)
def setSelectionRect(self, rect):
if self._selection_rect != rect:
self._selection_rect = QRectF(rect)
self._item.setRect(self._selection_rect)
def selectionRect(self):
return self._item.rect()
def mousePressEvent(self, event):
if event.button() == Qt.LeftButton:
pos = self.mapToPlot(event.pos())
if self._item.isVisible():
if self.selectionRect().contains(pos):
# Allow the event to propagate to the item.
event.setAccepted(False)
self._item.setCursor(Qt.ClosedHandCursor)
return False
self._mouse_dragging = True
self._start_pos = pos
self._item.setVisible(True)
self._plot.addItem(self._item)
self.setSelectionRect(QRectF(pos, pos))
event.accept()
return True
return super().mousePressEvent(event)
def mouseMoveEvent(self, event):
if event.buttons() & Qt.LeftButton:
pos = self.mapToPlot(event.pos())
self.setSelectionRect(QRectF(self._start_pos, pos).normalized())
event.accept()
return True
return super().mouseMoveEvent(event)
def mouseReleaseEvent(self, event):
if event.button() == Qt.LeftButton:
pos = self.mapToPlot(event.pos())
self.setSelectionRect(QRectF(self._start_pos, pos).normalized())
event.accept()
self.issueCommand.emit(SelectRegion(self.selectionRect()))
self._item.setCursor(Qt.OpenHandCursor)
self._mouse_dragging = False
return True
return super().mouseReleaseEvent(event)
def activate(self):
if self._item is None:
self._item = _RectROI((0, 0), (0, 0), pen=(25, 25, 25))
self._item.setAcceptedMouseButtons(Qt.LeftButton)
self._item.setVisible(False)
self._item.setCursor(Qt.OpenHandCursor)
self._item.sigRegionChanged.connect(self._on_region_changed)
self._item.sigRegionChangeStarted.connect(
self._on_region_change_started)
self._item.sigRegionChangeFinished.connect(
self._on_region_change_finished)
self._plot.addItem(self._item)
self._mouse_dragging = False
self._plot.addAction(self._delete_action)
def deactivate(self):
self.reset()
self._plot.removeAction(self._delete_action)
def reset(self):
self.setSelectionRect(QRectF())
self._item.setVisible(False)
self._mouse_dragging = False
def delete(self):
if not self._mouse_dragging and self._item.isVisible():
self.issueCommand.emit(DeleteSelection())
self.reset()
def _on_region_changed(self):
if not self._mouse_dragging:
newrect = self._item.rect()
delta = newrect.topLeft() - self._selection_rect.topLeft()
self._selection_rect = newrect
self.issueCommand.emit(MoveSelection(delta))
def _on_region_change_started(self):
if not self._mouse_dragging:
self.editingStarted.emit()
def _on_region_change_finished(self):
if not self._mouse_dragging:
self.editingFinished.emit()
def __init__(self, parent, select_fn=None):
QWidget.__init__(self)
OWComponent.__init__(self, parent)
self.parent = parent
self.select_fn = select_fn
self.selection_type = SELECTMANY
self.saving_enabled = hasattr(self.parent, "save_graph")
self.selection_enabled = True
self.viewtype = INDIVIDUAL # required bt InteractiveViewBox
self.highlighted = None
self.data_points = None
self.data_values = None
self.data_imagepixels = None
self.selection = None
self.plotview = pg.PlotWidget(background="w", viewBox=InteractiveViewBox(self))
self.plot = self.plotview.getPlotItem()
self.plot.scene().installEventFilter(
HelpEventDelegate(self.help_event, self))
layout = QVBoxLayout()
self.setLayout(layout)
self.layout().setContentsMargins(0, 0, 0, 0)
self.layout().addWidget(self.plotview)
self.img = ImageItemNan()
self.img.setOpts(axisOrder='row-major')
self.plot.addItem(self.img)
self.plot.vb.setAspectLocked()
self.plot.scene().sigMouseMoved.connect(self.plot.vb.mouseMovedEvent)
layout = QGridLayout()
self.plotview.setLayout(layout)
self.button = QPushButton("View", self.plotview)
self.button.setAutoDefault(False)
layout.setRowStretch(1, 1)
layout.setColumnStretch(1, 1)
layout.addWidget(self.button, 0, 0)
view_menu = MenuFocus(self)
self.button.setMenu(view_menu)
actions = []
zoom_in = QAction(
"Zoom in", self, triggered=self.plot.vb.set_mode_zooming
)
zoom_in.setShortcuts([Qt.Key_Z, QKeySequence(QKeySequence.ZoomIn)])
zoom_in.setShortcutContext(Qt.WidgetWithChildrenShortcut)
actions.append(zoom_in)
zoom_fit = QAction(
"Zoom to fit", self,
triggered=lambda x: (self.plot.vb.autoRange(), self.plot.vb.set_mode_panning())
)
zoom_fit.setShortcuts([Qt.Key_Backspace, QKeySequence(Qt.ControlModifier | Qt.Key_0)])
zoom_fit.setShortcutContext(Qt.WidgetWithChildrenShortcut)
actions.append(zoom_fit)
select_square = QAction(
"Select (square)", self, triggered=self.plot.vb.set_mode_select_square,
)
select_square.setShortcuts([Qt.Key_S])
select_square.setShortcutContext(Qt.WidgetWithChildrenShortcut)
actions.append(select_square)
select_polygon = QAction(
"Select (polygon)", self, triggered=self.plot.vb.set_mode_select_polygon,
)
select_polygon.setShortcuts([Qt.Key_P])
select_polygon.setShortcutContext(Qt.WidgetWithChildrenShortcut)
actions.append(select_polygon)
if self.saving_enabled:
save_graph = QAction(
"Save graph", self, triggered=self.save_graph,
)
save_graph.setShortcuts([QKeySequence(Qt.ControlModifier | Qt.Key_I)])
actions.append(save_graph)
view_menu.addActions(actions)
self.addActions(actions)
common_options = dict(
labelWidth=50, orientation=Qt.Horizontal, sendSelectedValue=True,
valueType=str)
choose_xy = QWidgetAction(self)
box = gui.vBox(self)
box.setFocusPolicy(Qt.TabFocus)
self.xy_model = DomainModel(DomainModel.METAS | DomainModel.CLASSES, valid_types=DomainModel.PRIMITIVE)
self.cb_attr_x = gui.comboBox(
box, self, "attr_x", label="Axis x:", callback=self.update_attr,
model=self.xy_model, **common_options)
self.cb_attr_y = gui.comboBox(
box, self, "attr_y", label="Axis y:", callback=self.update_attr,
model=self.xy_model, **common_options)
box.setFocusProxy(self.cb_attr_x)
self.color_cb = gui.comboBox(box, self, "palette_index", label="Color:",
labelWidth=50, orientation=Qt.Horizontal)
self.color_cb.setIconSize(QSize(64, 16))
palettes = _color_palettes
self.palette_index = min(self.palette_index, len(palettes) - 1)
model = color_palette_model(palettes, self.color_cb.iconSize())
model.setParent(self)
self.color_cb.setModel(model)
self.color_cb.activated.connect(self.update_color_schema)
self.color_cb.setCurrentIndex(self.palette_index)
form = QFormLayout(
formAlignment=Qt.AlignLeft,
labelAlignment=Qt.AlignLeft,
fieldGrowthPolicy=QFormLayout.AllNonFixedFieldsGrow
)
lowslider = gui.hSlider(
box, self, "threshold_low", minValue=0.0, maxValue=1.0,
step=0.05, ticks=True, intOnly=False,
createLabel=False, callback=self.update_color_schema)
highslider = gui.hSlider(
box, self, "threshold_high", minValue=0.0, maxValue=1.0,
step=0.05, ticks=True, intOnly=False,
createLabel=False, callback=self.update_color_schema)
form.addRow("Low:", lowslider)
form.addRow("High:", highslider)
box.layout().addLayout(form)
choose_xy.setDefaultWidget(box)
view_menu.addAction(choose_xy)
self.markings_integral = []
self.lsx = None # info about the X axis
self.lsy = None # info about the Y axis
self.data = None
self.data_ids = {}
class SelectTool(DataTool):
cursor = Qt.ArrowCursor
def __init__(self, parent, plot):
super().__init__(parent, plot)
self._item = None
self._start_pos = None
self._selection_rect = None
self._mouse_dragging = False
self._delete_action = QAction(
"Delete", self, shortcutContext=Qt.WindowShortcut
)
self._delete_action.setShortcuts([QKeySequence.Delete,
QKeySequence("Backspace")])
self._delete_action.triggered.connect(self.delete)
def setSelectionRect(self, rect):
if self._selection_rect != rect:
self._selection_rect = QRectF(rect)
self._item.setRect(self._selection_rect)
def selectionRect(self):
return self._item.rect()
def mousePressEvent(self, event):
if event.button() == Qt.LeftButton:
pos = self.mapToPlot(event.pos())
if self._item.isVisible():
if self.selectionRect().contains(pos):
# Allow the event to propagate to the item.
event.setAccepted(False)
self._item.setCursor(Qt.ClosedHandCursor)
return False
self._mouse_dragging = True
self._start_pos = pos
self._item.setVisible(True)
self._plot.addItem(self._item)
self.setSelectionRect(QRectF(pos, pos))
event.accept()
return True
else:
return super().mousePressEvent(event)
def mouseMoveEvent(self, event):
if event.buttons() & Qt.LeftButton:
pos = self.mapToPlot(event.pos())
self.setSelectionRect(QRectF(self._start_pos, pos).normalized())
event.accept()
return True
else:
return super().mouseMoveEvent(event)
def mouseReleaseEvent(self, event):
if event.button() == Qt.LeftButton:
pos = self.mapToPlot(event.pos())
self.setSelectionRect(QRectF(self._start_pos, pos).normalized())
event.accept()
self.issueCommand.emit(SelectRegion(self.selectionRect()))
self._item.setCursor(Qt.OpenHandCursor)
self._mouse_dragging = False
return True
else:
return super().mouseReleaseEvent(event)
def activate(self):
if self._item is None:
self._item = _RectROI((0, 0), (0, 0), pen=(25, 25, 25))
self._item.setAcceptedMouseButtons(Qt.LeftButton)
self._item.setVisible(False)
self._item.setCursor(Qt.OpenHandCursor)
self._item.sigRegionChanged.connect(self._on_region_changed)
self._item.sigRegionChangeStarted.connect(
self._on_region_change_started)
self._item.sigRegionChangeFinished.connect(
self._on_region_change_finished)
self._plot.addItem(self._item)
self._mouse_dragging = False
self._plot.addAction(self._delete_action)
def deactivate(self):
self._reset()
self._plot.removeAction(self._delete_action)
def _reset(self):
self.setSelectionRect(QRectF())
self._item.setVisible(False)
self._mouse_dragging = False
def delete(self):
if not self._mouse_dragging and self._item.isVisible():
self.issueCommand.emit(DeleteSelection())
self._reset()
def _on_region_changed(self):
if not self._mouse_dragging:
newrect = self._item.rect()
delta = newrect.topLeft() - self._selection_rect.topLeft()
self._selection_rect = newrect
self.issueCommand.emit(MoveSelection(delta))
def _on_region_change_started(self):
if not self._mouse_dragging:
self.editingStarted.emit()
def _on_region_change_finished(self):
if not self._mouse_dragging:
self.editingFinished.emit()
def __init__(self, parent=None, select=SELECTNONE):
QWidget.__init__(self)
OWComponent.__init__(self, parent)
self.parent = parent
self.selection_type = select
self.saving_enabled = hasattr(self.parent, "save_graph")
self.clear_data(init=True)
self.plotview = pg.PlotWidget(background="w", viewBox=InteractiveViewBox(self))
self.plot = self.plotview.getPlotItem()
self.plot.setDownsampling(auto=True, mode="peak")
self.markings = []
self.vLine = pg.InfiniteLine(angle=90, movable=False)
self.hLine = pg.InfiniteLine(angle=0, movable=False)
self.proxy = pg.SignalProxy(self.plot.scene().sigMouseMoved, rateLimit=20, slot=self.mouseMoved, delay=0.1)
self.plot.scene().sigMouseMoved.connect(self.plot.vb.mouseMovedEvent)
self.plot.vb.sigRangeChanged.connect(self.resized)
self.pen_mouse = pg.mkPen(color=(0, 0, 255), width=2)
self.pen_normal = defaultdict(lambda: pg.mkPen(color=(200, 200, 200, 127), width=1))
self.pen_subset = defaultdict(lambda: pg.mkPen(color=(0, 0, 0, 127), width=1))
self.pen_selected = defaultdict(lambda: pg.mkPen(color=(0, 0, 0, 127), width=2, style=Qt.DotLine))
self.label = pg.TextItem("", anchor=(1, 0))
self.label.setText("", color=(0, 0, 0))
self.discrete_palette = None
QPixmapCache.setCacheLimit(max(QPixmapCache.cacheLimit(), 100 * 1024))
self.curves_cont = PlotCurvesItem()
self.important_decimals = 4, 4
self.MOUSE_RADIUS = 20
self.clear_graph()
#interface settings
self.location = True #show current position
self.markclosest = True #mark
self.crosshair = True
self.crosshair_hidden = True
self.viewtype = INDIVIDUAL
layout = QVBoxLayout()
self.setLayout(layout)
self.layout().setContentsMargins(0, 0, 0, 0)
self.layout().addWidget(self.plotview)
actions = []
zoom_in = QAction(
"Zoom in", self, triggered=self.plot.vb.set_mode_zooming
)
zoom_in.setShortcuts([Qt.Key_Z, QKeySequence(QKeySequence.ZoomIn)])
actions.append(zoom_in)
zoom_fit = QAction(
"Zoom to fit", self,
triggered=lambda x: (self.plot.vb.autoRange(), self.plot.vb.set_mode_panning())
)
zoom_fit.setShortcuts([Qt.Key_Backspace, QKeySequence(Qt.ControlModifier | Qt.Key_0)])
actions.append(zoom_fit)
rescale_y = QAction(
"Rescale Y to fit", self, shortcut=Qt.Key_D,
triggered=self.rescale_current_view_y
)
actions.append(rescale_y)
view_individual = QAction(
"Show individual", self, shortcut=Qt.Key_I,
triggered=lambda x: self.show_individual()
)
actions.append(view_individual)
view_average = QAction(
"Show averages", self, shortcut=Qt.Key_A,
triggered=lambda x: self.show_average()
)
actions.append(view_average)
self.show_grid = False
self.show_grid_a = QAction(
"Show grid", self, shortcut=Qt.Key_G, checkable=True,
triggered=self.grid_changed
)
actions.append(self.show_grid_a)
self.invertX_menu = QAction(
"Invert X", self, shortcut=Qt.Key_X, checkable=True,
triggered=self.invertX_changed
)
actions.append(self.invertX_menu)
if self.selection_type == SELECTMANY:
select_curves = QAction(
"Select (line)", self, triggered=self.plot.vb.set_mode_select,
)
select_curves.setShortcuts([Qt.Key_S])
actions.append(select_curves)
if self.saving_enabled:
save_graph = QAction(
"Save graph", self, triggered=self.save_graph,
)
save_graph.setShortcuts([QKeySequence(Qt.ControlModifier | Qt.Key_S)])
actions.append(save_graph)
range_menu = MenuFocus("Define view range", self)
range_action = QWidgetAction(self)
layout = QGridLayout()
range_box = gui.widgetBox(self, margin=5, orientation=layout)
range_box.setFocusPolicy(Qt.TabFocus)
self.range_e_x1 = lineEditFloatOrNone(None, self, "range_x1", label="e")
range_box.setFocusProxy(self.range_e_x1)
self.range_e_x2 = lineEditFloatOrNone(None, self, "range_x2", label="e")
layout.addWidget(QLabel("X"), 0, 0, Qt.AlignRight)
layout.addWidget(self.range_e_x1, 0, 1)
layout.addWidget(QLabel("-"), 0, 2)
layout.addWidget(self.range_e_x2, 0, 3)
self.range_e_y1 = lineEditFloatOrNone(None, self, "range_y1", label="e")
self.range_e_y2 = lineEditFloatOrNone(None, self, "range_y2", label="e")
layout.addWidget(QLabel("Y"), 1, 0, Qt.AlignRight)
layout.addWidget(self.range_e_y1, 1, 1)
layout.addWidget(QLabel("-"), 1, 2)
layout.addWidget(self.range_e_y2, 1, 3)
b = gui.button(None, self, "Apply", callback=self.set_limits)
layout.addWidget(b, 2, 3, Qt.AlignRight)
range_action.setDefaultWidget(range_box)
range_menu.addAction(range_action)
layout = QGridLayout()
self.plotview.setLayout(layout)
self.button = QPushButton("View", self.plotview)
self.button.setAutoDefault(False)
layout.setRowStretch(1, 1)
layout.setColumnStretch(1, 1)
layout.addWidget(self.button, 0, 0)
view_menu = MenuFocus(self)
self.button.setMenu(view_menu)
view_menu.addActions(actions)
view_menu.addMenu(range_menu)
self.addActions(actions)
choose_color_action = QWidgetAction(self)
choose_color_box = gui.hBox(self)
choose_color_box.setFocusPolicy(Qt.TabFocus)
model = VariableListModel()
self.attrs = []
model.wrap(self.attrs)
label = gui.label(choose_color_box, self, "Color by")
label.setAlignment(Qt.AlignRight | Qt.AlignVCenter)
self.attrCombo = gui.comboBox(
choose_color_box, self, value="color_attr", contentsLength=12,
callback=self.change_color_attr)
self.attrCombo.setModel(model)
choose_color_box.setFocusProxy(self.attrCombo)
choose_color_action.setDefaultWidget(choose_color_box)
view_menu.addAction(choose_color_action)
labels_action = QWidgetAction(self)
layout = QGridLayout()
labels_box = gui.widgetBox(self, margin=0, orientation=layout)
t = gui.lineEdit(None, self, "label_title", label="Title:",
callback=self.labels_changed, callbackOnType=self.labels_changed)
layout.addWidget(QLabel("Title:"), 0, 0, Qt.AlignRight)
layout.addWidget(t, 0, 1)
t = gui.lineEdit(None, self, "label_xaxis", label="X-axis:",
callback=self.labels_changed, callbackOnType=self.labels_changed)
layout.addWidget(QLabel("X-axis:"), 1, 0, Qt.AlignRight)
layout.addWidget(t, 1, 1)
t = gui.lineEdit(None, self, "label_yaxis", label="Y-axis:",
callback=self.labels_changed, callbackOnType=self.labels_changed)
layout.addWidget(QLabel("Y-axis:"), 2, 0, Qt.AlignRight)
layout.addWidget(t, 2, 1)
labels_action.setDefaultWidget(labels_box)
view_menu.addAction(labels_action)
self.labels_changed() # apply saved labels
self.invertX_apply()
self.plot.vb.set_mode_panning()
self.reports = {} # current reports
self.viewhelpers_show()
def __init__(self, parent):
QWidget.__init__(self)
OWComponent.__init__(self, parent)
SelectionGroupMixin.__init__(self)
ImageColorSettingMixin.__init__(self)
ImageZoomMixin.__init__(self)
ConcurrentMixin.__init__(self)
self.parent = parent
self.selection_type = SELECTMANY
self.saving_enabled = True
self.selection_enabled = True
self.viewtype = INDIVIDUAL # required bt InteractiveViewBox
self.highlighted = None
self.data_points = None
self.data_values = None
self.data_imagepixels = None
self.data_valid_positions = None
self.plotview = pg.GraphicsLayoutWidget()
self.plot = pg.PlotItem(background="w",
viewBox=InteractiveViewBox(self))
self.plotview.addItem(self.plot)
self.legend = ImageColorLegend()
self.plotview.addItem(self.legend)
self.plot.scene().installEventFilter(
HelpEventDelegate(self.help_event, self))
layout = QVBoxLayout()
self.setLayout(layout)
self.layout().setContentsMargins(0, 0, 0, 0)
self.layout().addWidget(self.plotview)
self.img = ImageItemNan()
self.img.setOpts(axisOrder='row-major')
self.plot.addItem(self.img)
self.vis_img = pg.ImageItem()
self.vis_img.setOpts(axisOrder='row-major')
self.plot.vb.setAspectLocked()
self.plot.scene().sigMouseMoved.connect(self.plot.vb.mouseMovedEvent)
layout = QGridLayout()
self.plotview.setLayout(layout)
self.button = QPushButton("Menu", self.plotview)
self.button.setAutoDefault(False)
layout.setRowStretch(1, 1)
layout.setColumnStretch(1, 1)
layout.addWidget(self.button, 0, 0)
view_menu = MenuFocus(self)
self.button.setMenu(view_menu)
# prepare interface according to the new context
self.parent.contextAboutToBeOpened.connect(
lambda x: self.init_interface_data(x[0]))
actions = []
self.add_zoom_actions(view_menu)
select_square = QAction(
"Select (square)",
self,
triggered=self.plot.vb.set_mode_select_square,
)
select_square.setShortcuts([Qt.Key_S])
select_square.setShortcutContext(Qt.WidgetWithChildrenShortcut)
actions.append(select_square)
select_polygon = QAction(
"Select (polygon)",
self,
triggered=self.plot.vb.set_mode_select_polygon,
)
select_polygon.setShortcuts([Qt.Key_P])
select_polygon.setShortcutContext(Qt.WidgetWithChildrenShortcut)
actions.append(select_polygon)
if self.saving_enabled:
save_graph = QAction(
"Save graph",
self,
triggered=self.save_graph,
)
save_graph.setShortcuts(
[QKeySequence(Qt.ControlModifier | Qt.Key_I)])
actions.append(save_graph)
view_menu.addActions(actions)
self.addActions(actions)
common_options = dict(labelWidth=50,
orientation=Qt.Horizontal,
sendSelectedValue=True)
choose_xy = QWidgetAction(self)
box = gui.vBox(self)
box.setFocusPolicy(Qt.TabFocus)
self.xy_model = DomainModel(DomainModel.METAS | DomainModel.CLASSES,
valid_types=DomainModel.PRIMITIVE)
self.cb_attr_x = gui.comboBox(box,
self,
"attr_x",
label="Axis x:",
callback=self.update_attr,
model=self.xy_model,
**common_options)
self.cb_attr_y = gui.comboBox(box,
self,
"attr_y",
label="Axis y:",
callback=self.update_attr,
model=self.xy_model,
**common_options)
box.setFocusProxy(self.cb_attr_x)
box.layout().addWidget(self.color_settings_box())
choose_xy.setDefaultWidget(box)
view_menu.addAction(choose_xy)
self.lsx = None # info about the X axis
self.lsy = None # info about the Y axis
self.data = None
self.data_ids = {}
def __init__(self, parent):
QWidget.__init__(self)
OWComponent.__init__(self, parent)
SelectionGroupMixin.__init__(self)
ImageColorSettingMixin.__init__(self)
ImageZoomMixin.__init__(self)
self.parent = parent
self.selection_type = SELECTMANY
self.saving_enabled = True
self.selection_enabled = True
self.viewtype = INDIVIDUAL # required bt InteractiveViewBox
self.highlighted = None
self.data_points = None
self.data_values = None
self.data_imagepixels = None
self.plotview = pg.PlotWidget(background="w", viewBox=InteractiveViewBox(self))
self.plot = self.plotview.getPlotItem()
self.plot.scene().installEventFilter(
HelpEventDelegate(self.help_event, self))
layout = QVBoxLayout()
self.setLayout(layout)
self.layout().setContentsMargins(0, 0, 0, 0)
self.layout().addWidget(self.plotview)
self.img = ImageItemNan()
self.img.setOpts(axisOrder='row-major')
self.plot.addItem(self.img)
self.plot.vb.setAspectLocked()
self.plot.scene().sigMouseMoved.connect(self.plot.vb.mouseMovedEvent)
layout = QGridLayout()
self.plotview.setLayout(layout)
self.button = QPushButton("Menu", self.plotview)
self.button.setAutoDefault(False)
layout.setRowStretch(1, 1)
layout.setColumnStretch(1, 1)
layout.addWidget(self.button, 0, 0)
view_menu = MenuFocus(self)
self.button.setMenu(view_menu)
# prepare interface according to the new context
self.parent.contextAboutToBeOpened.connect(lambda x: self.init_interface_data(x[0]))
actions = []
self.add_zoom_actions(view_menu)
select_square = QAction(
"Select (square)", self, triggered=self.plot.vb.set_mode_select_square,
)
select_square.setShortcuts([Qt.Key_S])
select_square.setShortcutContext(Qt.WidgetWithChildrenShortcut)
actions.append(select_square)
select_polygon = QAction(
"Select (polygon)", self, triggered=self.plot.vb.set_mode_select_polygon,
)
select_polygon.setShortcuts([Qt.Key_P])
select_polygon.setShortcutContext(Qt.WidgetWithChildrenShortcut)
actions.append(select_polygon)
if self.saving_enabled:
save_graph = QAction(
"Save graph", self, triggered=self.save_graph,
)
save_graph.setShortcuts([QKeySequence(Qt.ControlModifier | Qt.Key_I)])
actions.append(save_graph)
view_menu.addActions(actions)
self.addActions(actions)
common_options = dict(
labelWidth=50, orientation=Qt.Horizontal, sendSelectedValue=True,
valueType=str)
choose_xy = QWidgetAction(self)
box = gui.vBox(self)
box.setFocusPolicy(Qt.TabFocus)
self.xy_model = DomainModel(DomainModel.METAS | DomainModel.CLASSES,
valid_types=DomainModel.PRIMITIVE)
self.cb_attr_x = gui.comboBox(
box, self, "attr_x", label="Axis x:", callback=self.update_attr,
model=self.xy_model, **common_options)
self.cb_attr_y = gui.comboBox(
box, self, "attr_y", label="Axis y:", callback=self.update_attr,
model=self.xy_model, **common_options)
box.setFocusProxy(self.cb_attr_x)
box.layout().addWidget(self.color_settings_box())
choose_xy.setDefaultWidget(box)
view_menu.addAction(choose_xy)
self.markings_integral = []
self.lsx = None # info about the X axis
self.lsy = None # info about the Y axis
self.data = None
self.data_ids = {}
def __init__(self, parent: OWWidget, select=SELECTNONE):
QWidget.__init__(self)
OWComponent.__init__(self, parent)
self.parent = parent
self.selection_type = select
self.select_at_least_1 = False
self.saving_enabled = hasattr(self.parent, "save_graph")
self.clear_data()
self.subset = None # current subset input, an array of indices
self.subset_indices = None # boolean index array with indices in self.data
self.plotview = pg.PlotWidget(background="w", viewBox=InteractiveViewBoxC(self))
self.plot = self.plotview.getPlotItem()
self.plot.setDownsampling(auto=True, mode="peak")
self.markings = []
self.vLine = pg.InfiniteLine(angle=90, movable=False)
self.hLine = pg.InfiniteLine(angle=0, movable=False)
self.proxy = pg.SignalProxy(self.plot.scene().sigMouseMoved, rateLimit=20, slot=self.mouseMoved, delay=0.1)
self.plot.scene().sigMouseMoved.connect(self.plot.vb.mouseMovedEvent)
self.plot.vb.sigRangeChanged.connect(self.resized)
self.plot.vb.sigResized.connect(self.resized)
self.pen_mouse = pg.mkPen(color=(0, 0, 255), width=2)
self.pen_normal = defaultdict(lambda: pg.mkPen(color=(200, 200, 200, 127), width=1))
self.pen_subset = defaultdict(lambda: pg.mkPen(color=(0, 0, 0, 127), width=1))
self.pen_selected = defaultdict(lambda: pg.mkPen(color=(0, 0, 0, 127), width=2, style=Qt.DotLine))
self.label = pg.TextItem("", anchor=(1, 0))
self.label.setText("", color=(0, 0, 0))
self.discrete_palette = None
QPixmapCache.setCacheLimit(max(QPixmapCache.cacheLimit(), 100 * 1024))
self.curves_cont = PlotCurvesItem()
self.important_decimals = 4, 4
self.plot.scene().installEventFilter(
HelpEventDelegate(self.help_event, self))
# whether to rescale at next update
self.rescale_next = True
self.MOUSE_RADIUS = 20
self.clear_graph()
# interface settings
self.location = True # show current position
self.markclosest = True # mark
self.crosshair = True
self.crosshair_hidden = True
layout = QVBoxLayout()
self.setLayout(layout)
self.layout().setContentsMargins(0, 0, 0, 0)
self.layout().addWidget(self.plotview)
# prepare interface according to the new context
self.parent.contextAboutToBeOpened.connect(lambda x: self.init_interface_data(x[0]))
actions = []
resample_curves = QAction(
"Resample curves", self, shortcut=Qt.Key_R,
triggered=lambda x: self.resample_curves(self.sample_seed+1)
)
resample_curves.setShortcutContext(Qt.WidgetWithChildrenShortcut)
actions.append(resample_curves)
reset_curves = QAction(
"Resampling reset", self, shortcut=QKeySequence(Qt.ControlModifier | Qt.Key_R),
triggered=lambda x: self.resample_curves(0)
)
reset_curves.setShortcutContext(Qt.WidgetWithChildrenShortcut)
actions.append(reset_curves)
zoom_in = QAction(
"Zoom in", self, triggered=self.plot.vb.set_mode_zooming
)
zoom_in.setShortcuts([Qt.Key_Z, QKeySequence(QKeySequence.ZoomIn)])
zoom_in.setShortcutContext(Qt.WidgetWithChildrenShortcut)
actions.append(zoom_in)
zoom_fit = QAction(
"Zoom to fit", self,
triggered=lambda x: (self.plot.vb.autoRange(), self.plot.vb.set_mode_panning())
)
zoom_fit.setShortcuts([Qt.Key_Backspace, QKeySequence(Qt.ControlModifier | Qt.Key_0)])
zoom_fit.setShortcutContext(Qt.WidgetWithChildrenShortcut)
actions.append(zoom_fit)
rescale_y = QAction(
"Rescale Y to fit", self, shortcut=Qt.Key_D,
triggered=self.rescale_current_view_y
)
rescale_y.setShortcutContext(Qt.WidgetWithChildrenShortcut)
actions.append(rescale_y)
self.view_average_menu = QAction(
"Show averages", self, shortcut=Qt.Key_A, checkable=True,
triggered=lambda x: self.viewtype_changed()
)
self.view_average_menu.setShortcutContext(Qt.WidgetWithChildrenShortcut)
actions.append(self.view_average_menu)
self.show_grid = False
self.show_grid_a = QAction(
"Show grid", self, shortcut=Qt.Key_G, checkable=True,
triggered=self.grid_changed
)
self.show_grid_a.setShortcutContext(Qt.WidgetWithChildrenShortcut)
actions.append(self.show_grid_a)
self.invertX_menu = QAction(
"Invert X", self, shortcut=Qt.Key_X, checkable=True,
triggered=self.invertX_changed
)
self.invertX_menu.setShortcutContext(Qt.WidgetWithChildrenShortcut)
actions.append(self.invertX_menu)
if self.selection_type == SELECTMANY:
select_curves = QAction(
"Select (line)", self, triggered=self.line_select_start,
)
select_curves.setShortcuts([Qt.Key_S])
select_curves.setShortcutContext(Qt.WidgetWithChildrenShortcut)
actions.append(select_curves)
if self.saving_enabled:
save_graph = QAction(
"Save graph", self, triggered=self.save_graph,
)
save_graph.setShortcuts([QKeySequence(Qt.ControlModifier | Qt.Key_S)])
save_graph.setShortcutContext(Qt.WidgetWithChildrenShortcut)
actions.append(save_graph)
range_menu = MenuFocus("Define view range", self)
range_action = QWidgetAction(self)
layout = QGridLayout()
range_box = gui.widgetBox(self, margin=5, orientation=layout)
range_box.setFocusPolicy(Qt.TabFocus)
self.range_e_x1 = lineEditFloatOrNone(None, self, "range_x1", label="e")
range_box.setFocusProxy(self.range_e_x1)
self.range_e_x2 = lineEditFloatOrNone(None, self, "range_x2", label="e")
layout.addWidget(QLabel("X"), 0, 0, Qt.AlignRight)
layout.addWidget(self.range_e_x1, 0, 1)
layout.addWidget(QLabel("-"), 0, 2)
layout.addWidget(self.range_e_x2, 0, 3)
self.range_e_y1 = lineEditFloatOrNone(None, self, "range_y1", label="e")
self.range_e_y2 = lineEditFloatOrNone(None, self, "range_y2", label="e")
layout.addWidget(QLabel("Y"), 1, 0, Qt.AlignRight)
layout.addWidget(self.range_e_y1, 1, 1)
layout.addWidget(QLabel("-"), 1, 2)
layout.addWidget(self.range_e_y2, 1, 3)
b = gui.button(None, self, "Apply", callback=self.set_limits)
layout.addWidget(b, 2, 3, Qt.AlignRight)
range_action.setDefaultWidget(range_box)
range_menu.addAction(range_action)
layout = QGridLayout()
self.plotview.setLayout(layout)
self.button = QPushButton("View", self.plotview)
self.button.setAutoDefault(False)
layout.setRowStretch(1, 1)
layout.setColumnStretch(1, 1)
layout.addWidget(self.button, 0, 0)
view_menu = MenuFocus(self)
self.button.setMenu(view_menu)
view_menu.addActions(actions)
view_menu.addMenu(range_menu)
self.addActions(actions)
choose_color_action = QWidgetAction(self)
choose_color_box = gui.hBox(self)
choose_color_box.setFocusPolicy(Qt.TabFocus)
label = gui.label(choose_color_box, self, "Color by")
label.setAlignment(Qt.AlignRight | Qt.AlignVCenter)
self.feature_color_model = DomainModel(DomainModel.METAS | DomainModel.CLASSES,
valid_types=(DiscreteVariable,), placeholder="None")
self.feature_color_combo = gui.comboBox(
choose_color_box, self, "feature_color",
callback=self.update_view, model=self.feature_color_model,
valueType=str)
choose_color_box.setFocusProxy(self.feature_color_combo)
choose_color_action.setDefaultWidget(choose_color_box)
view_menu.addAction(choose_color_action)
cycle_colors = QShortcut(Qt.Key_C, self, self.cycle_color_attr, context=Qt.WidgetWithChildrenShortcut)
labels_action = QWidgetAction(self)
layout = QGridLayout()
labels_box = gui.widgetBox(self, margin=0, orientation=layout)
t = gui.lineEdit(None, self, "label_title", label="Title:",
callback=self.labels_changed, callbackOnType=self.labels_changed)
layout.addWidget(QLabel("Title:"), 0, 0, Qt.AlignRight)
layout.addWidget(t, 0, 1)
t = gui.lineEdit(None, self, "label_xaxis", label="X-axis:",
callback=self.labels_changed, callbackOnType=self.labels_changed)
layout.addWidget(QLabel("X-axis:"), 1, 0, Qt.AlignRight)
layout.addWidget(t, 1, 1)
t = gui.lineEdit(None, self, "label_yaxis", label="Y-axis:",
callback=self.labels_changed, callbackOnType=self.labels_changed)
layout.addWidget(QLabel("Y-axis:"), 2, 0, Qt.AlignRight)
layout.addWidget(t, 2, 1)
labels_action.setDefaultWidget(labels_box)
view_menu.addAction(labels_action)
self.labels_changed() # apply saved labels
self.invertX_apply()
self.plot.vb.set_mode_panning()
self.reports = {} # current reports
self.viewhelpers_show()
def __init__(self, parent):
QWidget.__init__(self)
OWComponent.__init__(self, parent)
SelectionGroupMixin.__init__(self)
self.parent = parent
self.selection_type = SELECTMANY
self.saving_enabled = True
self.selection_enabled = True
self.viewtype = INDIVIDUAL # required bt InteractiveViewBox
self.highlighted = None
self.data_points = None
self.data_values = None
self.data_imagepixels = None
self.plotview = pg.PlotWidget(background="w", viewBox=InteractiveViewBox(self))
self.plot = self.plotview.getPlotItem()
self.plot.scene().installEventFilter(
HelpEventDelegate(self.help_event, self))
layout = QVBoxLayout()
self.setLayout(layout)
self.layout().setContentsMargins(0, 0, 0, 0)
self.layout().addWidget(self.plotview)
self.img = ImageItemNan()
self.img.setOpts(axisOrder='row-major')
self.plot.addItem(self.img)
self.plot.vb.setAspectLocked()
self.plot.scene().sigMouseMoved.connect(self.plot.vb.mouseMovedEvent)
layout = QGridLayout()
self.plotview.setLayout(layout)
self.button = QPushButton("Menu", self.plotview)
self.button.setAutoDefault(False)
layout.setRowStretch(1, 1)
layout.setColumnStretch(1, 1)
layout.addWidget(self.button, 0, 0)
view_menu = MenuFocus(self)
self.button.setMenu(view_menu)
# prepare interface according to the new context
self.parent.contextAboutToBeOpened.connect(lambda x: self.init_interface_data(x[0]))
actions = []
zoom_in = QAction(
"Zoom in", self, triggered=self.plot.vb.set_mode_zooming
)
zoom_in.setShortcuts([Qt.Key_Z, QKeySequence(QKeySequence.ZoomIn)])
zoom_in.setShortcutContext(Qt.WidgetWithChildrenShortcut)
actions.append(zoom_in)
zoom_fit = QAction(
"Zoom to fit", self,
triggered=lambda x: (self.plot.vb.autoRange(), self.plot.vb.set_mode_panning())
)
zoom_fit.setShortcuts([Qt.Key_Backspace, QKeySequence(Qt.ControlModifier | Qt.Key_0)])
zoom_fit.setShortcutContext(Qt.WidgetWithChildrenShortcut)
actions.append(zoom_fit)
select_square = QAction(
"Select (square)", self, triggered=self.plot.vb.set_mode_select_square,
)
select_square.setShortcuts([Qt.Key_S])
select_square.setShortcutContext(Qt.WidgetWithChildrenShortcut)
actions.append(select_square)
select_polygon = QAction(
"Select (polygon)", self, triggered=self.plot.vb.set_mode_select_polygon,
)
select_polygon.setShortcuts([Qt.Key_P])
select_polygon.setShortcutContext(Qt.WidgetWithChildrenShortcut)
actions.append(select_polygon)
if self.saving_enabled:
save_graph = QAction(
"Save graph", self, triggered=self.save_graph,
)
save_graph.setShortcuts([QKeySequence(Qt.ControlModifier | Qt.Key_I)])
actions.append(save_graph)
view_menu.addActions(actions)
self.addActions(actions)
common_options = dict(
labelWidth=50, orientation=Qt.Horizontal, sendSelectedValue=True,
valueType=str)
choose_xy = QWidgetAction(self)
box = gui.vBox(self)
box.setFocusPolicy(Qt.TabFocus)
self.xy_model = DomainModel(DomainModel.METAS | DomainModel.CLASSES,
valid_types=DomainModel.PRIMITIVE)
self.cb_attr_x = gui.comboBox(
box, self, "attr_x", label="Axis x:", callback=self.update_attr,
model=self.xy_model, **common_options)
self.cb_attr_y = gui.comboBox(
box, self, "attr_y", label="Axis y:", callback=self.update_attr,
model=self.xy_model, **common_options)
box.setFocusProxy(self.cb_attr_x)
self.color_cb = gui.comboBox(box, self, "palette_index", label="Color:",
labelWidth=50, orientation=Qt.Horizontal)
self.color_cb.setIconSize(QSize(64, 16))
palettes = _color_palettes
self.palette_index = min(self.palette_index, len(palettes) - 1)
model = color_palette_model(palettes, self.color_cb.iconSize())
model.setParent(self)
self.color_cb.setModel(model)
self.color_cb.activated.connect(self.update_color_schema)
self.color_cb.setCurrentIndex(self.palette_index)
form = QFormLayout(
formAlignment=Qt.AlignLeft,
labelAlignment=Qt.AlignLeft,
fieldGrowthPolicy=QFormLayout.AllNonFixedFieldsGrow
)
def limit_changed():
self.update_levels()
self.reset_thresholds()
self._level_low_le = lineEditDecimalOrNone(self, self, "level_low", callback=limit_changed)
self._level_low_le.validator().setDefault(0)
form.addRow("Low limit:", self._level_low_le)
self._level_high_le = lineEditDecimalOrNone(self, self, "level_high", callback=limit_changed)
self._level_high_le.validator().setDefault(1)
form.addRow("High limit:", self._level_high_le)
lowslider = gui.hSlider(
box, self, "threshold_low", minValue=0.0, maxValue=1.0,
step=0.05, ticks=True, intOnly=False,
createLabel=False, callback=self.update_levels)
highslider = gui.hSlider(
box, self, "threshold_high", minValue=0.0, maxValue=1.0,
step=0.05, ticks=True, intOnly=False,
createLabel=False, callback=self.update_levels)
form.addRow("Low:", lowslider)
form.addRow("High:", highslider)
box.layout().addLayout(form)
choose_xy.setDefaultWidget(box)
view_menu.addAction(choose_xy)
self.markings_integral = []
self.lsx = None # info about the X axis
self.lsy = None # info about the Y axis
self.data = None
self.data_ids = {}
