📜  Python – Sympy Polygon.encloses_point() 方法

📅  最后修改于: 2022-05-13 01:55:52.348000             🧑  作者: Mango

Python – Sympy Polygon.encloses_point() 方法

在 Sympy 中,函数Polygon.encloses_point ()用于检查给定点是否被多边形包围。如果给定点位于多边形内部,则返回 True,否则返回 False。在多边形的边界上也被认为是 False。

Syntax: Polygon.encloses_point(p)

Parameters:
 p: Point

Returns:
 True: if point lies inside polygon, otherwise False.

示例 #1:

Python3
# import sympy import Point, Polygon
from sympy import Point, Polygon
  
# creating points using Point()
p1, p2, p3 = map(Point, [(0, 0), (5, 0), (5, 5)])
  
# creating polygon using Polygon()
poly = Polygon(p1, p2, p3)
  
# using encloses_point()
isEnclosed = poly.encloses_point(Point(2, 1))
  
print(isEnclosed)


Python3
# import sympy import Point, Polygon
from sympy import Point, Polygon
  
# creating points using Point()
p1, p2, p3 = map(Point, [(0, 0), (4, 0), (4, 4)])
  
# creating polygon using Polygon()
poly = Polygon(p1, p2, p3)
  
# using encloses_point()
isEnclosed = poly.encloses_point(Point(2, 2))
  
print(isEnclosed)


输出:

True

示例 #2:

Python3

# import sympy import Point, Polygon
from sympy import Point, Polygon
  
# creating points using Point()
p1, p2, p3 = map(Point, [(0, 0), (4, 0), (4, 4)])
  
# creating polygon using Polygon()
poly = Polygon(p1, p2, p3)
  
# using encloses_point()
isEnclosed = poly.encloses_point(Point(2, 2))
  
print(isEnclosed)

输出:

False