SymPy | Python中的 Polyhedron.array_form()

Polyhedron.array_form() ：array_form()是一个 sympy Python库函数，它返回多面体角的索引。

Syntax :
sympy.combinatorics.Polyhedrons.Polyhedron.array_form()

Return :
indices of the corners of polyhedron

代码 #1：array_form() 示例——四面体

# Python code explaining
# SymPy.Polyhedron.array_form()
  
# importing SymPy libraries
from sympy.combinatorics import Permutation, Cycle
from sympy.combinatorics.polyhedron import tetrahedron, octahedron
  
# Using from 
# sympy.combinatorics.polyhedron.Polyhedron.array_form()
  
# Creating Polyhedron
a = tetrahedron.copy()
  
print ("Polyhedron - array_form form : ", a.array_form)
  
a.rotate(0)
print ("\nPolyhedron - array_form form : ", a.array_form)

输出 ：

Polyhedron – array_form form : [0, 1, 2, 3]

Polyhedron – array_form form : [0, 2, 3, 1]

代码 #2：array_form() 示例 – 八面体

# Python code explaining
# SymPy.Polyhedron.array_form()
  
# importing SymPy libraries
from sympy.combinatorics import Permutation, Cycle
from sympy.combinatorics.polyhedron import tetrahedron, octahedron
  
# Using from 
# sympy.combinatorics.polyhedron.Polyhedron.array_form()
  
# Creating Polyhedron
a = octahedron.copy()
  
print ("Polyhedron - array_form form : ", a.array_form)
  
a.rotate(0)
print ("\nPolyhedron - array_form form : ", a.array_form)

输出 ：

Polyhedron – array_form form : [0, 1, 2, 3, 4, 5]

Polyhedron – array_form form : [0, 2, 3, 4, 1, 5]