normpath.py 文件源码

def bbox(self):
        xmin_pt, xmax_pt = path._bezierpolyrange(self.x0_pt, self.x1_pt, self.x2_pt, self.x3_pt)
        ymin_pt, ymax_pt = path._bezierpolyrange(self.y0_pt, self.y1_pt, self.y2_pt, self.y3_pt)
        return bboxmodule.bbox_pt(xmin_pt, ymin_pt, xmax_pt, ymax_pt)