本文整理汇总了Python中pyqtgraph.graphicsItems.ScatterPlotItem.setBrush方法的典型用法代码示例。如果您正苦于以下问题：Python ScatterPlotItem.setBrush方法的具体用法？Python ScatterPlotItem.setBrush怎么用？Python ScatterPlotItem.setBrush使用的例子？那么恭喜您, 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.setBrush方法的5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 setBrush [as 别名]
#.........这里部分代码省略.........
for col in self.brush_colors.tolist()])
else:
if self.pen_colors is None:
palette = self.discrete_palette
n_colors = palette.number_of_colors
c_data = c_data.copy()
c_data[np.isnan(c_data)] = n_colors
c_data = c_data.astype(int)
colors = np.r_[palette.getRGB(np.arange(n_colors)),
[[128, 128, 128]]]
pens = np.array(
[make_pen(QColor(*col).darker(self.DarkerValue), 1.5)
for col in colors])
self.pen_colors = pens[c_data]
self.brush_colors = np.array([
[QBrush(QColor(0, 0, 0, 0)),
QBrush(QColor(col[0], col[1], col[2], self.alpha_value))]
for col in colors])
self.brush_colors = self.brush_colors[c_data]
if subset is not None:
brush = np.where(
subset,
self.brush_colors[:, 1], self.brush_colors[:, 0])
else:
brush = self.brush_colors[:, 1]
pen = self.pen_colors
return pen, brush
def update_colors(self, keep_colors=False):
if self.scatterplot_item:
pen_data, brush_data = self.compute_colors(keep_colors)
pen_data_sel, brush_data_sel = self.compute_colors_sel(keep_colors)
self.scatterplot_item.setPen(pen_data, update=False, mask=None)
self.scatterplot_item.setBrush(brush_data, mask=None)
self.scatterplot_item_sel.setPen(pen_data_sel, update=False, mask=None)
self.scatterplot_item_sel.setBrush(brush_data_sel, mask=None)
if not keep_colors:
self.make_legend()
if self.should_draw_density():
self.update_data(self.shown_x, self.shown_y)
elif self.density_img:
self.plot_widget.removeItem(self.density_img)
update_alpha_value = update_colors
def create_labels(self):
for x, y in zip(*self.scatterplot_item.getData()):
ti = TextItem()
self.plot_widget.addItem(ti)
ti.setPos(x, y)
self.labels.append(ti)
def update_labels(self):
if not self.attr_label:
for label in self.labels:
label.setText("")
return
if not self.labels:
self.create_labels()
label_column = self.raw_data.get_column_view(self.attr_label)[0]
formatter = self.raw_data.domain[self.attr_label].str_val
label_data = map(formatter, label_column)
black = pg.mkColor(0, 0, 0)
for label, text in zip(self.labels, label_data):
label.setText(text, black)示例2: OWScatterPlotBase
# 需要导入模块: from pyqtgraph.graphicsItems import ScatterPlotItem [as 别名]
# 或者: from pyqtgraph.graphicsItems.ScatterPlotItem import setBrush [as 别名]
#.........这里部分代码省略.........
self.plot_widget.scene().installEventFilter(self._tooltip_delegate)
self.view_box.sigTransformChanged.connect(self.update_density)
self.view_box.sigRangeChangedManually.connect(self.update_labels)
self.timer = None
def _create_legend(self, anchor):
legend = LegendItem()
legend.setParentItem(self.plot_widget.getViewBox())
legend.restoreAnchor(anchor)
return legend
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
}
self.tiptexts[0] = all_parts
self.tip_textitem = text = QGraphicsTextItem()
# Set to the longest text
text.setHtml(self.tiptexts[Qt.ShiftModifier + Qt.ControlModifier])
text.setPos(4, 2)
r = text.boundingRect()
rect = QGraphicsRectItem(0, 0, r.width() + 8, r.height() + 4)
rect.setBrush(QColor(224, 224, 224, 212))
rect.setPen(QPen(Qt.NoPen))
self.update_tooltip()
scene.drag_tooltip = scene.createItemGroup([rect, text])
scene.drag_tooltip.hide()
def update_tooltip(self, modifiers=Qt.NoModifier):
modifiers &= Qt.ShiftModifier + Qt.ControlModifier + Qt.AltModifier
text = self.tiptexts.get(int(modifiers), self.tiptexts[0])
self.tip_textitem.setHtml(text + self._get_jittering_tooltip())
def _get_jittering_tooltip(self):
warn_jittered = ""
if self.jitter_size:
warn_jittered = \
'<br/><br/>' \
'<span style="background-color: red; color: white; ' \
'font-weight: 500;">' \
' Warning: Selection is applied to unjittered data ' \
'</span>'
return warn_jittered
def update_jittering(self):
self.update_tooltip()
x, y = self.get_coordinates()
if x is None or not len(x) or self.scatterplot_item is None:
return
self._update_plot_coordinates(self.scatterplot_item, x, y)
self._update_plot_coordinates(self.scatterplot_item_sel, x, y)
self.update_labels()
# TODO: Rename to remove_plot_items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 setBrush [as 别名]
#.........这里部分代码省略.........
brush = np.array([QBrush(QColor(*col))
for col in self.brush_colors.tolist()])
else:
if self.pen_colors is None:
palette = self.discrete_palette
n_colors = palette.number_of_colors
c_data = c_data.copy()
c_data[np.isnan(c_data)] = n_colors
c_data = c_data.astype(int)
colors = palette.getRGB(np.arange(n_colors + 1))
colors[n_colors] = (128, 128, 128)
pens = np.array(
[QPen(QBrush(QColor(*col).darker(self.DarkerValue)), 1.5)
for col in colors])
self.pen_colors = pens[c_data]
self.brush_colors = np.array([
[QBrush(QColor(0, 0, 0, 0)),
QBrush(QColor(col[0], col[1], col[2], self.alpha_value))]
for col in colors])
self.brush_colors = self.brush_colors[c_data]
if self.selection is not None:
brush = np.where(
self.selection,
self.brush_colors[:, 1], self.brush_colors[:, 0])
else:
brush = self.brush_colors[:, 1]
pen = self.pen_colors
return pen, brush
def update_colors(self, keep_colors=False):
if self.scatterplot_item:
pen_data, brush_data = self.compute_colors(keep_colors)
self.scatterplot_item.setPen(pen_data, update=False, mask=None)
self.scatterplot_item.setBrush(brush_data, mask=None)
if not keep_colors:
self.make_legend()
update_alpha_value = update_colors
def create_labels(self):
for x, y in zip(*self.scatterplot_item.getData()):
ti = TextItem()
self.plot_widget.addItem(ti)
ti.setPos(x, y)
self.labels.append(ti)
def update_labels(self):
if not self.attr_label:
for label in self.labels:
label.setText("")
return
if not self.labels:
self.create_labels()
label_column = self.raw_data.get_column_view(self.attr_label)[0]
formatter = self.raw_data.domain[self.attr_label].str_val
label_data = map(formatter, label_column)
black = pg.mkColor(0, 0, 0)
for label, text in zip(self.labels, label_data):
label.setText(text, black)
def get_shape_index(self):
shape_index = -1
attr_shape = self.attr_shape
if attr_shape and attr_shape != "(Same shape)" and \
len(self.data_domain[attr_shape].values) <= \
len(self.CurveSymbols):示例4: OWScatterPlotGraph
# 需要导入模块: from pyqtgraph.graphicsItems import ScatterPlotItem [as 别名]
# 或者: from pyqtgraph.graphicsItems.ScatterPlotItem import setBrush [as 别名]
#.........这里部分代码省略.........
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
}
self.tiptexts[0] = all_parts
self.tip_textitem = text = QGraphicsTextItem()
# Set to the longest text
text.setHtml(self.tiptexts[Qt.ShiftModifier + Qt.ControlModifier])
text.setPos(4, 2)
r = text.boundingRect()
rect = QGraphicsRectItem(0, 0, r.width() + 8, r.height() + 4)
rect.setBrush(QColor(224, 224, 224, 212))
rect.setPen(QPen(Qt.NoPen))
self.update_tooltip(Qt.NoModifier)
scene.drag_tooltip = scene.createItemGroup([rect, text])
scene.drag_tooltip.hide()
def update_tooltip(self, modifiers):
modifiers &= Qt.ShiftModifier + Qt.ControlModifier + Qt.AltModifier
text = self.tiptexts.get(int(modifiers), self.tiptexts[0])
self.tip_textitem.setHtml(text)
def new_data(self, data, subset_data=None, new=True, **args):
if new:
self.plot_widget.clear()
self.remove_legend()
self.density_img = None
self.scatterplot_item = None
self.scatterplot_item_sel = None
self.reg_line_item = 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._data = data
data = self.sparse_to_dense()
self.set_data(data, **args)
def set_domain(self, data):
domain = data.domain if data and len(data) else None示例5: OWLinearProjection
# 需要导入模块: from pyqtgraph.graphicsItems import ScatterPlotItem [as 别名]
# 或者: from pyqtgraph.graphicsItems.ScatterPlotItem import setBrush [as 别名]
#.........这里部分代码省略.........
brush_data[~subset_mask] = QtGui.QBrush(Qt.NoBrush)
if self._selection_mask is not None:
assert self._selection_mask.shape == (len(self.data),)
if mask is not None:
selection_mask = self._selection_mask[mask]
else:
selection_mask = self._selection_mask
if isinstance(pen_data, QtGui.QPen):
pen_data = numpy.array([pen_data] * selection_mask.size,
dtype=object)
pen_data[selection_mask] = pg.mkPen((200, 200, 0, 150), width=4)
return pen_data, brush_data
def _on_color_change(self):
if self.data is None or self._item is None:
return
pen, brush = self._color_data()
if isinstance(pen, QtGui.QPen):
# Reset the brush for all points
self._item.data["pen"] = None
self._item.setPen(pen)
else:
self._item.setPen(pen[self._item._mask])
if isinstance(brush, QtGui.QBrush):
# Reset the brush for all points
self._item.data["brush"] = None
self._item.setBrush(brush)
else:
self._item.setBrush(brush[self._item._mask])
self._update_legend()
def _shape_data(self, mask):
shape_var = self.shape_var()
if shape_var is None:
shape_data = numpy.array(["o"] * len(self.data))
else:
assert shape_var.is_discrete
max_symbol = len(ScatterPlotItem.Symbols) - 1
shape = self._get_data(shape_var)
shape_mask = numpy.isnan(shape)
shape = shape % (max_symbol - 1)
shape[shape_mask] = max_symbol
symbols = numpy.array(list(ScatterPlotItem.Symbols))
shape_data = symbols[numpy.asarray(shape, dtype=int)]
if mask is None:
return shape_data
else:
return shape_data[mask]
def _on_shape_change(self):
if self.data is None:
return
self.set_shape(self._shape_data(mask=None))
self._update_legend()
def _size_data(self, mask=None):