实现幕墙分格的：定数等分，定距等分，任意分格，极限等分，定距等分多余分到两边，定距等分多余的分到中间。可对直线、圆弧、多段线进行操作(The realization of curtain wall partition is as follows: fixed number equal division, fixed distance equal division, arbitrary division, limit equal division, fixed distance equal div