pyfrp_plot_module.py 文件源码

def drawCenterMarker(self):

        """Draws a yellow marker in center of the image, making it 
        easier to find image center when selecting center of boundary."""

        centerImg=[self.img.shape[0]/2.,self.img.shape[1]/2.]

        if len(self.centerMarker)>0:
            self.clearCenterMarker()
        else:   
            pt=ptc.Circle(centerImg,radius=3,fill=True,color='y')
            self.centerMarker.append(self.ax.add_patch(pt))

        self.fig.canvas.draw()

        return self.centerMarker