plot.py 文件源码

def update(self, ix=None, cutoff=None, region=None, update_canvas=True):
        if region is not None:
            self._new_region(region)

        if ix is not None and ix != self.current_ix:
            ds = self.da_sub[ix]
            self.current_ix = ix
            self.line.set_ydata(ds)
            self.ax.set_ylim((np.nanmin(ds), np.nanmax(ds)))

            if cutoff is None:
                if not self.is_symmetric:
                    self.update(cutoff=(self.ax.get_ylim()[1]-self.ax.get_ylim()[0])/2 + self.ax.get_ylim()[0],
                                update_canvas=False)
                else:
                    self.update(cutoff=self.ax.get_ylim()[1] / 2, update_canvas=False)

            if update_canvas:
                self.fig.canvas.draw()

        if cutoff is not None and cutoff != self.current_cutoff:
            if self.is_symmetric:
                self.current_cutoff = abs(cutoff)
            else:
                self.current_cutoff = cutoff
            self.cutoff_line.set_ydata(self.current_cutoff)
            if self.is_symmetric:
                self.cutoff_line_mirror.set_ydata(-1*self.current_cutoff)

            if update_canvas:
                self.fig.canvas.draw()