Python–Sympy 多边形. is _ 凸()方法
原文:https://www . geesforgeks . org/python-sympy-polygon-is _ 凸-method/
在 Sympy 中，函数polygon . is _ 凸()用于检查给定的多边形是否凸。如果一个多边形的所有内角都小于 180 度，并且边之间没有交点，那么这个多边形就是凸的。
Syntax: Polygon.is_convex()
Returns:
True: True if this polygon is convex, False otherwise.
示例#1:
Python 3
# import Point, Polygon
from sympy import Point, Polygon
# creating points using Point()
p1, p2, p3, p4 = map(Point, [(0, 0), (1, 0), (5, 1), (0, 1)])
# creating polygon using Polygon()
isConvex = Polygon(p1, p2, p3, p4)
# using is_convex()
print(isConvex.is_convex())
输出:
True
例 2:
Python 3
# import Point, Polygon
from sympy import Point, Polygon
# creating points using Point()
p1, p2, p3, p4, p5 = map(Point, [(0, 0), (3, 2), (4, 5), (7, 1), (6, 3)])
# creating polygon using Polygon()
isConvex = Polygon(p1, p2, p3, p4, p5)
# using is_convex()
print(isConvex.is_convex())
输出:
False
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