tab_covariance.py 文件源码

def __init__(self, parent_plot):
        _KiteSubplotPlot.__init__(self, parent_plot)

        self.structure = pg.PlotDataItem(antialias=True)
        self.variance = pg.InfiniteLine(
            pen=pen_covariance,
            angle=0, movable=True, hoverPen=None,
            label='Variance: {value:.5f}',
            labelOpts={'position': .975,
                       'anchors': ((1., 0.), (1., 1.)),
                       'color': pg.mkColor(255, 255, 255, 155)})
        self.plot.setLabels(bottom={'Distance', 'm'},
                            left='Covariance (m<sup>2</sup>)')

        self.addItem(self.structure)
        self.addItem(self.variance)
        self.model.sigCovarianceChanged.connect(
            self.update)
        self.variance.sigPositionChangeFinished.connect(
            self.changeVariance)

        self.update()