megafacade.py 文件源码

def _plot_background(self, bgimage):
        import pylab as pl
        # Show the portion of the image behind this facade
        left, right = self.facade_left, self.facade_right
        top, bottom = 0, self.mega_facade.rectified.shape[0]
        if bgimage is not None:
            pl.imshow(bgimage[top:bottom, left:right], extent=(left, right, bottom, top))
        else:
            # Fit the facade in the plot
            y0, y1 = pl.ylim()
            x0, x1 = pl.xlim()
            x0 = min(x0, left)
            x1 = max(x1, right)
            y0 = min(y0, top)
            y1 = max(y1, bottom)
            pl.xlim(x0, x1)
            pl.ylim(y1, y0)