Python Sympy Polygon.intersection()用法及代碼示例

在Sympy中，函數Polygon.intersection()用於獲取給定多邊形和給定幾何實體的交集。幾何實體可以是點，線，多邊形或其他幾何圖形。如果多邊形和給定的幾何實體未在任何地方相交，則交點可以為空。但是，如果存在相交，則可以包含單個點或完整的線段。

用法：Polygon.intersection(o)

參數：Geometry Entity

返回：The list of Segments or Points of intersection.

範例1：

Python3

# 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)]) 
p5, p6, p7 = map(Point, [(3, 2), (1, -1), (0, 2)]) 
  
# creating polygons using Polygon() 
poly1 = Polygon(p1, p2, p3, p4) 
poly2 = Polygon(p5, p6, p7) 
  
# using intersection() 
isIntersection = poly1.intersection(poly2) 
  
print(isIntersection)

輸出：

[Point2D(1/3, 1), Point2D(2/3, 0), Point2D(9/5, 1/5), Point2D(7/3, 1)]

範例2：

Python3

# 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() 
poly1 = Polygon(p1, p2, p3, p4) 
  
# using intersection() 
isIntersection = poly1.intersection(Line(p1, Point(3, 2))) 
                                      
print(isIntersection)

輸出：

[Point2D(0, 0), Point2D(3/2, 1)]

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注：本文由純淨天空篩選整理自ravikishor大神的英文原創作品 Python – Sympy Polygon.intersection() Method。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。