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)