本文整理汇总了Python中pyqtgraph.graphicsItems.ScatterPlotItem.points方法的典型用法代码示例。如果您正苦于以下问题：Python ScatterPlotItem.points方法的具体用法？Python ScatterPlotItem.points怎么用？Python ScatterPlotItem.points使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类pyqtgraph.graphicsItems.ScatterPlotItem的用法示例。
在下文中一共展示了ScatterPlotItem.points方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: OWScatterPlotGraph
# 需要导入模块: from pyqtgraph.graphicsItems import ScatterPlotItem [as 别名]
# 或者: from pyqtgraph.graphicsItems.ScatterPlotItem import points [as 别名]
class OWScatterPlotGraph(gui.OWComponent, ScaleScatterPlotData):
attr_color = ContextSetting(None, required=ContextSetting.OPTIONAL)
attr_label = ContextSetting(None, required=ContextSetting.OPTIONAL)
attr_shape = ContextSetting(None, required=ContextSetting.OPTIONAL)
attr_size = ContextSetting(None, required=ContextSetting.OPTIONAL)
label_only_selected = Setting(False)
point_width = Setting(10)
alpha_value = Setting(128)
show_grid = Setting(False)
show_legend = Setting(True)
tooltip_shows_all = Setting(False)
class_density = Setting(False)
show_reg_line = Setting(False)
resolution = 256
CurveSymbols = np.array("o x t + d s t2 t3 p h star ?".split())
MinShapeSize = 6
DarkerValue = 120
UnknownColor = (168, 50, 168)
def __init__(self, scatter_widget, parent=None, _="None", view_box=InteractiveViewBox):
gui.OWComponent.__init__(self, scatter_widget)
self.view_box = view_box(self)
self.plot_widget = pg.PlotWidget(viewBox=self.view_box, parent=parent,
background="w")
self.plot_widget.getPlotItem().buttonsHidden = True
self.plot_widget.setAntialiasing(True)
self.plot_widget.sizeHint = lambda: QSize(500, 500)
scene = self.plot_widget.scene()
self._create_drag_tooltip(scene)
self._data = None # Original Table as passed from widget to new_data before transformations
self.replot = self.plot_widget.replot
ScaleScatterPlotData.__init__(self)
self.density_img = None
self.scatterplot_item = None
self.scatterplot_item_sel = None
self.reg_line_item = None
self.labels = []
self.master = scatter_widget
self.master.Warning.add_message(
"missing_coords",
"Plot cannot be displayed because '{}' or '{}' is missing for "
"all data points")
self.master.Information.add_message(
"missing_coords",
"Points with missing '{}' or '{}' are not displayed")
self.master.Information.add_message(
"missing_size",
"Points with undefined '{}' are shown in smaller size")
self.master.Information.add_message(
"missing_shape",
"Points with undefined '{}' are shown as crossed circles")
self.shown_attribute_indices = []
self.shown_x = self.shown_y = None
self.pen_colors = self.brush_colors = None
self.valid_data = None # np.ndarray
self.selection = None # np.ndarray
self.n_points = 0
self.gui = OWPlotGUI(self)
self.continuous_palette = ContinuousPaletteGenerator(
QColor(255, 255, 0), QColor(0, 0, 255), True)
self.discrete_palette = ColorPaletteGenerator()
self.selection_behavior = 0
self.legend = self.color_legend = None
self.__legend_anchor = (1, 0), (1, 0)
self.__color_legend_anchor = (1, 1), (1, 1)
self.scale = None # DiscretizedScale
self.subset_indices = None
# self.setMouseTracking(True)
# self.grabGesture(QPinchGesture)
# self.grabGesture(QPanGesture)
self.update_grid()
self._tooltip_delegate = HelpEventDelegate(self.help_event)
self.plot_widget.scene().installEventFilter(self._tooltip_delegate)
def _create_drag_tooltip(self, scene):
tip_parts = [
(Qt.ShiftModifier, "Shift: Add group"),
(Qt.ShiftModifier + Qt.ControlModifier,
"Shift-{}: Append to group".
format("Cmd" if sys.platform == "darwin" else "Ctrl")),
(Qt.AltModifier, "Alt: Remove")
]
all_parts = ", ".join(part for _, part in tip_parts)
self.tiptexts = {
int(modifier): all_parts.replace(part, "<b>{}</b>".format(part))
for modifier, part in tip_parts
#.........这里部分代码省略.........
示例2: OWScatterPlotGraph
# 需要导入模块: from pyqtgraph.graphicsItems import ScatterPlotItem [as 别名]
# 或者: from pyqtgraph.graphicsItems.ScatterPlotItem import points [as 别名]
class OWScatterPlotGraph(gui.OWComponent, ScaleScatterPlotData):
attr_color = ContextSetting("", ContextSetting.OPTIONAL)
attr_label = ContextSetting("", ContextSetting.OPTIONAL)
attr_shape = ContextSetting("", ContextSetting.OPTIONAL)
attr_size = ContextSetting("", ContextSetting.OPTIONAL)
point_width = Setting(10)
alpha_value = Setting(128)
show_grid = Setting(False)
show_legend = Setting(True)
tooltip_shows_all = Setting(False)
class_density = Setting(False)
resolution = 256
CurveSymbols = np.array("o x t + d s ?".split())
MinShapeSize = 6
DarkerValue = 120
UnknownColor = (168, 50, 168)
ID_MISSING_COORDS, ID_MISSING_SIZE, ID_MISSING_SHAPE = range(1, 4)
def __init__(self, scatter_widget, parent=None, _="None"):
gui.OWComponent.__init__(self, scatter_widget)
self.view_box = InteractiveViewBox(self)
self.plot_widget = pg.PlotWidget(viewBox=self.view_box, parent=parent,
background="w")
self.plot_widget.getPlotItem().buttonsHidden = True
self.plot_widget.setAntialiasing(True)
self.plot_widget.sizeHint = lambda: QtCore.QSize(500, 500)
self.replot = self.plot_widget.replot
ScaleScatterPlotData.__init__(self)
self.density_img = None
self.scatterplot_item = None
self.scatterplot_item_sel = None
self.labels = []
self.master = scatter_widget
self.shown_attribute_indices = []
self.shown_x = ""
self.shown_y = ""
self.pen_colors = self.brush_colors = None
self.valid_data = None # np.ndarray
self.selection = None # np.ndarray
self.n_points = 0
self.gui = OWPlotGUI(self)
self.continuous_palette = ContinuousPaletteGenerator(
QColor(255, 255, 0), QColor(0, 0, 255), True)
self.discrete_palette = ColorPaletteGenerator()
self.selection_behavior = 0
self.legend = self.color_legend = None
self.__legend_anchor = (1, 0), (1, 0)
self.__color_legend_anchor = (1, 1), (1, 1)
self.scale = None # DiscretizedScale
self.subset_indices = None
# self.setMouseTracking(True)
# self.grabGesture(QPinchGesture)
# self.grabGesture(QPanGesture)
self.update_grid()
self._tooltip_delegate = HelpEventDelegate(self.help_event)
self.plot_widget.scene().installEventFilter(self._tooltip_delegate)
def new_data(self, data, subset_data=None, **args):
self.plot_widget.clear()
self.density_img = None
self.scatterplot_item = None
self.scatterplot_item_sel = None
self.labels = []
self.selection = None
self.valid_data = None
self.subset_indices = set(e.id for e in subset_data) if subset_data else None
self.set_data(data, **args)
def _clear_plot_widget(self):
self.remove_legend()
if self.density_img:
self.plot_widget.removeItem(self.density_img)
self.density_img = None
if self.scatterplot_item:
self.plot_widget.removeItem(self.scatterplot_item)
self.scatterplot_item = None
if self.scatterplot_item_sel:
self.plot_widget.removeItem(self.scatterplot_item_sel)
self.scatterplot_item_sel = None
for label in self.labels:
self.plot_widget.removeItem(label)
self.labels = []
#.........这里部分代码省略.........
示例3: OWScatterPlotGraph
# 需要导入模块: from pyqtgraph.graphicsItems import ScatterPlotItem [as 别名]
# 或者: from pyqtgraph.graphicsItems.ScatterPlotItem import points [as 别名]
class OWScatterPlotGraph(gui.OWComponent, ScaleScatterPlotData):
attr_color = ContextSetting("", ContextSetting.OPTIONAL)
attr_label = ContextSetting("", ContextSetting.OPTIONAL)
attr_shape = ContextSetting("", ContextSetting.OPTIONAL)
attr_size = ContextSetting("", ContextSetting.OPTIONAL)
point_width = Setting(10)
alpha_value = Setting(255)
show_grid = Setting(False)
show_legend = Setting(True)
tooltip_shows_all = Setting(False)
square_granularity = Setting(3)
space_between_cells = Setting(True)
CurveSymbols = np.array("o x t + d s ?".split())
MinShapeSize = 6
DarkerValue = 120
UnknownColor = (168, 50, 168)
def __init__(self, scatter_widget, parent=None, _="None"):
gui.OWComponent.__init__(self, scatter_widget)
self.view_box = InteractiveViewBox(self)
self.plot_widget = pg.PlotWidget(viewBox=self.view_box, parent=parent)
self.plot_widget.setAntialiasing(True)
self.replot = self.plot_widget
ScaleScatterPlotData.__init__(self)
self.scatterplot_item = None
self.tooltip_data = []
self.tooltip = TextItem(
border=pg.mkPen(200, 200, 200), fill=pg.mkBrush(250, 250, 200, 220))
self.tooltip.hide()
self.labels = []
self.master = scatter_widget
self.shown_attribute_indices = []
self.shown_x = ""
self.shown_y = ""
self.pen_colors = self.brush_colors = None
self.valid_data = None # np.ndarray
self.selection = None # np.ndarray
self.n_points = 0
self.gui = OWPlotGUI(self)
self.continuous_palette = ContinuousPaletteGenerator(
QColor(255, 255, 0), QColor(0, 0, 255), True)
self.discrete_palette = ColorPaletteGenerator()
self.selection_behavior = 0
self.legend = self.color_legend = None
self.scale = None # DiscretizedScale
self.tips = TooltipManager(self)
# self.setMouseTracking(True)
# self.grabGesture(QPinchGesture)
# self.grabGesture(QPanGesture)
self.update_grid()
def set_data(self, data, subset_data=None, **args):
self.plot_widget.clear()
ScaleScatterPlotData.set_data(self, data, subset_data, **args)
def update_data(self, attr_x, attr_y):
self.shown_x = attr_x
self.shown_y = attr_y
self.remove_legend()
if self.scatterplot_item:
self.plot_widget.removeItem(self.scatterplot_item)
for label in self.labels:
self.plot_widget.removeItem(label)
self.labels = []
self.tooltip_data = []
self.set_axis_title("bottom", "")
self.set_axis_title("left", "")
if self.scaled_data is None or not len(self.scaled_data):
self.valid_data = None
self.n_points = 0
return
index_x = self.attribute_name_index[attr_x]
index_y = self.attribute_name_index[attr_y]
self.valid_data = self.get_valid_list([index_x, index_y])
x_data, y_data = self.get_xy_data_positions(
attr_x, attr_y, self.valid_data)
x_data = x_data[self.valid_data]
y_data = y_data[self.valid_data]
self.n_points = len(x_data)
for axis, name, index in (("bottom", attr_x, index_x),
("left", attr_y, index_y)):
self.set_axis_title(axis, name)
var = self.data_domain[index]
if isinstance(var, DiscreteVariable):
self.set_labels(axis, get_variable_values_sorted(var))
#.........这里部分代码省略.........