IsSurfaceClosed

判断一个曲面物件在指定方向是否闭合。如果曲面将一个空间体积完全包围，那么可以认为它是实体。

rhinoscriptsyntax.IsSurfaceClosed (surface_id, direction)

rhinoscript.surface.IsSurfaceClosed (surface_id, direction)

surface_id	必须参数。字符串或 Guid。物件的 ID 。
direction	必须参数。数字。方向，0 = U方向， 1 = V方向。

布尔值	如果执行成功，返回 True，如果执行不成功返回 False。
None	出错返回空值。

import rhinoscriptsyntax as rs

obj = rs.GetObject("Select a surface", rs.filter.surface)

if rs.IsSurfaceClosed(obj, 0):

print "The surface is closed in the U direction."

else:

print "The surface is not closed in the U direction."