def __init__(self, i, mu1, mu2, sigma1, sigma2, phi, color):
OWPlotItem.__init__(self)
self.outer_box = QGraphicsPolygonItem(self)
self.inner_box = QGraphicsPolygonItem(self)
self.i = i
self.mu1 = mu1
self.mu2 = mu2
self.sigma1 = sigma1
self.sigma2 = sigma2
self.phi = phi
self.twosigmapolygon = QPolygonF([
QPointF(i, mu1 - sigma1),
QPointF(i, mu1 + sigma1),
QPointF(i + 1, mu2 + sigma2),
QPointF(i + 1, mu2 - sigma2),
QPointF(i, mu1 - sigma1)
])
self.sigmapolygon = QPolygonF([
QPointF(i, mu1 - .5 * sigma1),
QPointF(i, mu1 + .5 * sigma1),
QPointF(i + 1, mu2 + .5 * sigma2),
QPointF(i + 1, mu2 - .5 * sigma2),
QPointF(i, mu1 - .5 * sigma1)
])
if isinstance(color, tuple):
color = QColor(*color)
color.setAlphaF(.3)
self.outer_box.setBrush(color)
self.outer_box.setPen(QColor(0, 0, 0, 0))
self.inner_box.setBrush(color)
self.inner_box.setPen(color)
def __init__(self, i, mu1, mu2, sigma1, sigma2, phi, color):
OWPlotItem.__init__(self)
self.outer_box = QGraphicsPolygonItem(self)
self.inner_box = QGraphicsPolygonItem(self)
self.i = i
self.mu1 = mu1
self.mu2 = mu2
self.sigma1 = sigma1
self.sigma2 = sigma2
self.phi = phi
self.twosigmapolygon = QPolygonF([
QPointF(i, mu1 - sigma1), QPointF(i, mu1 + sigma1),
QPointF(i + 1, mu2 + sigma2), QPointF(i + 1, mu2 - sigma2),
QPointF(i, mu1 - sigma1)
])
self.sigmapolygon = QPolygonF([
QPointF(i, mu1 - .5 * sigma1), QPointF(i, mu1 + .5 * sigma1),
QPointF(i + 1, mu2 + .5 * sigma2), QPointF(i + 1, mu2 - .5 * sigma2),
QPointF(i, mu1 - .5 * sigma1)
])
if isinstance(color, tuple):
color = QColor(*color)
color.setAlphaF(.3)
self.outer_box.setBrush(color)
self.outer_box.setPen(QColor(0, 0, 0, 0))
self.inner_box.setBrush(color)
self.inner_box.setPen(color)
class PolygonCurve(OWCurve):
"""
A plot item that shows a filled or empty polygon.
:param pen: The pen used to draw the polygon's outline
:type pen: :obj:`.QPen`
:param brush: The brush used to paint the polygon's inside
:type brush: :obj:`.QBrush`
:param xData: The list of x coordinates
:type xData: list of float
:param yData: The list of y coordinates
:type yData: list of float
:param tooltip: The tool tip shown when hovering over this curve
:type tooltip: str
"""
def __init__(self, pen = QPen(Qt.black), brush = QBrush(Qt.white), xData = [], yData = [], tooltip = None):
OWCurve.__init__(self, xData, yData, tooltip=tooltip)
self._data_polygon = self.polygon_from_data(xData, yData)
self._polygon_item = QGraphicsPolygonItem(self)
self.set_pen(pen)
self.set_brush(brush)
def update_properties(self):
self._polygon_item.setPolygon(self.graph_transform().map(self._data_polygon))
self._polygon_item.setPen(self.pen())
self._polygon_item.setBrush(self.brush())
@staticmethod
def polygon_from_data(xData, yData):
"""
Creates a polygon from a list of x and y coordinates.
:returns: A polygon with point corresponding to ``xData`` and ``yData``.
:rtype: QPolygonF
"""
if xData and yData:
n = min(len(xData), len(yData))
p = QPolygonF(n+1)
for i in range(n):
p[i] = QPointF(xData[i], yData[i])
p[n] = QPointF(xData[0], yData[0])
return p
else:
return QPolygonF()
def set_data(self, xData, yData):
self._data_polygon = self.polygon_from_data(xData, yData)
OWCurve.set_data(self, xData, yData)
class ParallelCoordinatePolygon(OWPlotItem):
def __init__(self, i, mu1, mu2, sigma1, sigma2, phi, color):
OWPlotItem.__init__(self)
self.outer_box = QGraphicsPolygonItem(self)
self.inner_box = QGraphicsPolygonItem(self)
self.i = i
self.mu1 = mu1
self.mu2 = mu2
self.sigma1 = sigma1
self.sigma2 = sigma2
self.phi = phi
self.twosigmapolygon = QPolygonF([
QPointF(i, mu1 - sigma1),
QPointF(i, mu1 + sigma1),
QPointF(i + 1, mu2 + sigma2),
QPointF(i + 1, mu2 - sigma2),
QPointF(i, mu1 - sigma1)
])
self.sigmapolygon = QPolygonF([
QPointF(i, mu1 - .5 * sigma1),
QPointF(i, mu1 + .5 * sigma1),
QPointF(i + 1, mu2 + .5 * sigma2),
QPointF(i + 1, mu2 - .5 * sigma2),
QPointF(i, mu1 - .5 * sigma1)
])
if isinstance(color, tuple):
color = QColor(*color)
color.setAlphaF(.3)
self.outer_box.setBrush(color)
self.outer_box.setPen(QColor(0, 0, 0, 0))
self.inner_box.setBrush(color)
self.inner_box.setPen(color)
def update_properties(self):
self.outer_box.setPolygon(self.graph_transform().map(
self.twosigmapolygon))
self.inner_box.setPolygon(self.graph_transform().map(
self.sigmapolygon))
class ParallelCoordinatePolygon(OWPlotItem):
def __init__(self, i, mu1, mu2, sigma1, sigma2, phi, color):
OWPlotItem.__init__(self)
self.outer_box = QGraphicsPolygonItem(self)
self.inner_box = QGraphicsPolygonItem(self)
self.i = i
self.mu1 = mu1
self.mu2 = mu2
self.sigma1 = sigma1
self.sigma2 = sigma2
self.phi = phi
self.twosigmapolygon = QPolygonF([
QPointF(i, mu1 - sigma1), QPointF(i, mu1 + sigma1),
QPointF(i + 1, mu2 + sigma2), QPointF(i + 1, mu2 - sigma2),
QPointF(i, mu1 - sigma1)
])
self.sigmapolygon = QPolygonF([
QPointF(i, mu1 - .5 * sigma1), QPointF(i, mu1 + .5 * sigma1),
QPointF(i + 1, mu2 + .5 * sigma2), QPointF(i + 1, mu2 - .5 * sigma2),
QPointF(i, mu1 - .5 * sigma1)
])
if isinstance(color, tuple):
color = QColor(*color)
color.setAlphaF(.3)
self.outer_box.setBrush(color)
self.outer_box.setPen(QColor(0, 0, 0, 0))
self.inner_box.setBrush(color)
self.inner_box.setPen(color)
def update_properties(self):
self.outer_box.setPolygon(self.graph_transform().map(self.twosigmapolygon))
self.inner_box.setPolygon(self.graph_transform().map(self.sigmapolygon))
def __init__(self, pen = QPen(Qt.black), brush = QBrush(Qt.white), xData = [], yData = [], tooltip = None):
OWCurve.__init__(self, xData, yData, tooltip=tooltip)
self._data_polygon = self.polygon_from_data(xData, yData)
self._polygon_item = QGraphicsPolygonItem(self)
self.set_pen(pen)
self.set_brush(brush)