def _anchor_circle(self, variables):
# minimum visible anchor radius (radius)
min_radius = self._get_min_radius()
axisitems = []
for anchor, var in zip(self.plotdata.axes, variables[:]):
axitem = AnchorItem(
line=QLineF(0, 0, *anchor),
text=var.name,
)
axitem.setVisible(np.linalg.norm(anchor) > min_radius)
axitem.setPen(pg.mkPen((100, 100, 100)))
axitem.setArrowVisible(True)
self.viewbox.addItem(axitem)
axisitems.append(axitem)
self.plotdata.axisitems = axisitems
if self.placement == self.Placement.Circular:
return
hidecircle = QGraphicsEllipseItem()
hidecircle.setRect(
QRectF(-min_radius, -min_radius, 2 * min_radius, 2 * min_radius))
_pen = QPen(Qt.lightGray, 1)
_pen.setCosmetic(True)
hidecircle.setPen(_pen)
self.viewbox.addItem(hidecircle)
self.plotdata.hidecircle = hidecircle
def _anchor_circle(self):
# minimum visible anchor radius (radius)
minradius = self.radius / 100 + 1e-5
for item in chain(self.plotdata.anchoritem, self.plotdata.items):
self.viewbox.removeItem(item)
self.plotdata.anchoritem = []
self.plotdata.items = []
for anchor, var in zip(self.plotdata.anchors,
self.data.domain.attributes):
if True or np.linalg.norm(anchor) > minradius:
axitem = AnchorItem(
line=QLineF(0, 0, *anchor),
text=var.name,
)
axitem.setVisible(np.linalg.norm(anchor) > minradius)
axitem.setPen(pg.mkPen((100, 100, 100)))
axitem.setArrowVisible(True)
self.plotdata.anchoritem.append(axitem)
self.viewbox.addItem(axitem)
hidecircle = QGraphicsEllipseItem()
hidecircle.setRect(
QRectF(-minradius, -minradius, 2 * minradius, 2 * minradius))
_pen = QPen(Qt.lightGray, 1)
_pen.setCosmetic(True)
hidecircle.setPen(_pen)
self.viewbox.addItem(hidecircle)
self.plotdata.items.append(hidecircle)
self.plotdata.hidecircle = hidecircle
def _add_circle_item(self):
if self._points is None:
return
self._circle_item = QGraphicsEllipseItem()
self._circle_item.setRect(QRectF(-1., -1., 2., 2.))
self._circle_item.setPen(pg.mkPen(QColor(0, 0, 0), width=2))
self.plot_widget.addItem(self._circle_item)
def update_circle(self):
if self.scatterplot_item is not None and not self.circle_item:
self.circle_item = QGraphicsEllipseItem()
self.circle_item.setRect(QRectF(-1, -1, 2, 2))
color = self.plot_widget.palette().color(QPalette.Text)
self.circle_item.setPen(pg.mkPen(color, width=2))
self.plot_widget.addItem(self.circle_item)
def __init__(self, pen = QPen(Qt.black), brush = QBrush(Qt.NoBrush), xCenter = 0.0, yCenter = 0.0, radius = 1.0):
OWCurve.__init__(self)
self._item = QGraphicsEllipseItem(self)
self.center = xCenter, yCenter
self.radius = radius
self._rect = QRectF(xCenter-radius, yCenter-radius, 2*radius, 2*radius)
self.set_pen(pen)
self.set_brush(brush)
def __init__(self, color, parent):
super().__init__(parent)
height, width = self.SIZE.height(), self.SIZE.width()
self.__circle = QGraphicsEllipseItem(0, 0, height, width)
self.__circle.setBrush(QBrush(color))
self.__circle.setPen(QPen(QColor(0, 0, 0, 0)))
self.__circle.setParentItem(self)
def test_anchoritem(self):
anchoritem = NodeAnchorItem(None)
self.scene.addItem(anchoritem)
path = QPainterPath()
path.addEllipse(0, 0, 100, 100)
anchoritem.setAnchorPath(path)
anchor = AnchorPoint()
anchoritem.addAnchor(anchor)
ellipse1 = QGraphicsEllipseItem(-3, -3, 6, 6)
ellipse2 = QGraphicsEllipseItem(-3, -3, 6, 6)
self.scene.addItem(ellipse1)
self.scene.addItem(ellipse2)
anchor.scenePositionChanged.connect(ellipse1.setPos)
with self.assertRaises(ValueError):
anchoritem.addAnchor(anchor)
anchor1 = AnchorPoint()
anchoritem.addAnchor(anchor1)
anchor1.scenePositionChanged.connect(ellipse2.setPos)
self.assertSequenceEqual(anchoritem.anchorPoints(), [anchor, anchor1])
self.assertSequenceEqual(anchoritem.anchorPositions(), [0.5, 0.5])
anchoritem.setAnchorPositions([0.5, 0.0])
self.assertSequenceEqual(anchoritem.anchorPositions(), [0.5, 0.0])
def advance():
t = anchoritem.anchorPositions()
t = [(t + 0.05) % 1.0 for t in t]
anchoritem.setAnchorPositions(t)
timer = QTimer(anchoritem, interval=10)
timer.start()
timer.timeout.connect(advance)
self.qWait()
timer.stop()
def place_point(_x, _y, _c):
item = QGraphicsEllipseItem()
item.setX(_x)
item.setY(_y)
item.setRect(0, 0, self.POINT_R, self.POINT_R)
color = QColor(*_c)
item.setPen(QPen(color))
item.setBrush(QBrush(color))
self._group.addToGroup(item)
def put_point(_x, _y):
item = QGraphicsEllipseItem()
item.setX(_x)
item.setY(_y)
item.setRect(0, 0, self.POINT_R, self.POINT_R)
color = QColor(*colors.pop().astype(int))
item.setPen(QPen(color))
item.setBrush(QBrush(color))
self.__group.addToGroup(item)
def _add_circle_item(self):
if not len(self._points):
return
r = self.radius / 100 + 1e-5
pen = pg.mkPen(QColor(Qt.lightGray), width=1, cosmetic=True)
self._circle_item = QGraphicsEllipseItem()
self._circle_item.setRect(QRectF(-r, -r, 2 * r, 2 * r))
self._circle_item.setPen(pen)
self.plot_widget.addItem(self._circle_item)
def pie_chart(self, x, y, r, dist, colors):
start_angle = 0
dist = np.asarray(dist)
spans = dist / (float(np.sum(dist)) or 1) * 360 * 16
for span, color in zip(spans, colors):
if not span:
continue
if self.explode:
mid_ang = (start_angle + span / 2) / 360 / 16 * 2 * pi
dx = r / 30 * cos(mid_ang)
dy = r / 30 * sin(mid_ang)
else:
dx = dy = 0
ellipse = QGraphicsEllipseItem(x - r / 2 + dx, y - r / 2 - dy, r,
r)
if len(spans) > 1:
ellipse.setStartAngle(start_angle)
ellipse.setSpanAngle(span)
ellipse.setBrush(QColor(*color))
self.scene.addItem(ellipse)
start_angle += span
def __init__(self):
super().__init__()
self.data = None
self.subset_data = None
self._subset_mask = None
self._selection = None # np.array
self.__replot_requested = False
self._new_plotdata()
self.variable_x = ContinuousVariable("radviz-x")
self.variable_y = ContinuousVariable("radviz-y")
box = gui.vBox(self.mainArea, True, margin=0)
self.graph = OWRadvizGraph(self, box, "Plot", view_box=RadvizInteractiveViewBox)
self.graph.hide_axes()
box.layout().addWidget(self.graph.plot_widget)
plot = self.graph.plot_widget
SIZE_POLICY = (QSizePolicy.Minimum, QSizePolicy.Maximum)
self.variables_selection = VariablesSelection()
self.model_selected = VariableListModel(enable_dnd=True)
self.model_other = VariableListModel(enable_dnd=True)
self.variables_selection(self, self.model_selected, self.model_other)
self.vizrank, self.btn_vizrank = RadvizVizRank.add_vizrank(
self.controlArea, self, "Suggest features", self.vizrank_set_attrs
)
self.btn_vizrank.setSizePolicy(*SIZE_POLICY)
self.variables_selection.add_remove.layout().addWidget(self.btn_vizrank)
self.viewbox = plot.getViewBox()
self.replot = None
g = self.graph.gui
pp_box = g.point_properties_box(self.controlArea)
pp_box.setSizePolicy(*SIZE_POLICY)
self.models = g.points_models
box = gui.vBox(self.controlArea, "Plot Properties")
box.setSizePolicy(*SIZE_POLICY)
g.add_widget(g.JitterSizeSlider, box)
g.add_widgets([g.ShowLegend, g.ClassDensity, g.LabelOnlySelected], box)
zoom_select = self.graph.box_zoom_select(self.controlArea)
zoom_select.setSizePolicy(*SIZE_POLICY)
self.icons = gui.attributeIconDict
p = self.graph.plot_widget.palette()
self.graph.set_palette(p)
gui.auto_commit(
self.controlArea,
self,
"auto_commit",
"Send Selection",
auto_label="Send Automatically",
)
self.graph.zoom_actions(self)
self._circle = QGraphicsEllipseItem()
self._circle.setRect(QRectF(-1.0, -1.0, 2.0, 2.0))
self._circle.setPen(pg.mkPen(QColor(0, 0, 0), width=2))
def test_anchoritem(self):
anchoritem = NodeAnchorItem(None)
anchoritem.setAnimationEnabled(False)
self.scene.addItem(anchoritem)
path = QPainterPath()
path.addEllipse(0, 0, 100, 100)
anchoritem.setAnchorPath(path)
anchor = AnchorPoint()
anchoritem.addAnchor(anchor)
ellipse1 = QGraphicsEllipseItem(-3, -3, 6, 6)
ellipse2 = QGraphicsEllipseItem(-3, -3, 6, 6)
self.scene.addItem(ellipse1)
self.scene.addItem(ellipse2)
anchor.scenePositionChanged.connect(ellipse1.setPos)
with self.assertRaises(ValueError):
anchoritem.addAnchor(anchor)
anchor1 = AnchorPoint()
anchoritem.addAnchor(anchor1)
anchor1.scenePositionChanged.connect(ellipse2.setPos)
self.assertSequenceEqual(anchoritem.anchorPoints(), [anchor, anchor1])
self.assertSequenceEqual(anchoritem.anchorPositions(), [2 / 3, 1 / 3])
anchoritem.setAnchorPositions([0.5, 0.0])
self.assertSequenceEqual(anchoritem.anchorPositions(), [0.5, 0.0])
def advance():
t = anchoritem.anchorPositions()
t = [(t + 0.05) % 1.0 for t in t]
anchoritem.setAnchorPositions(t)
timer = QTimer(anchoritem, interval=10)
timer.start()
timer.timeout.connect(advance)
self.qWait()
timer.stop()
anchoritem.setAnchorOpen(True)
anchoritem.setHovered(True)
self.assertEqual(*[p.scenePos() for p in anchoritem.anchorPoints()])
anchoritem.setAnchorOpen(False)
self.assertNotEqual(*[p.scenePos() for p in anchoritem.anchorPoints()])
anchoritem.setAnchorOpen(False)
anchoritem.setHovered(True)
self.assertNotEqual(*[p.scenePos() for p in anchoritem.anchorPoints()])
anchoritem = NodeAnchorItem(None)
anchoritem.setSignals([
InputSignal("first", "object", "set_first"),
InputSignal("second", "object", "set_second")
])
self.assertListEqual(
anchoritem._NodeAnchorItem__pathStroker.dashPattern(),
list(anchoritem._NodeAnchorItem__unanchoredDash))
anchoritem.setAnchorOpen(True)
anchoritem.setHovered(True)
self.assertListEqual(
anchoritem._NodeAnchorItem__pathStroker.dashPattern(),
list(anchoritem._NodeAnchorItem__channelDash))
def update_circle(self):
if self.scatterplot_item is not None and not self.circle_item:
self.circle_item = QGraphicsEllipseItem()
self.circle_item.setRect(QRectF(-1, -1, 2, 2))
self.circle_item.setPen(pg.mkPen(QColor(0, 0, 0), width=2))
self.plot_widget.addItem(self.circle_item)
