coxeter_automaton/example.py

#!/usr/bin/python

import coxeter_automaton
from pprint import pprint

# the (3, 3, 3) triangle group; or equivalently, the
# equilateral triangle tiling of the Euclidean plane
coxeter_matrix = [[1, 3, 3],
                  [3, 1, 3],
                  [3, 3, 1]]

# (2, 3, infinity) triangle group; 0 stands for infinity
# coxeter_matrix = [[1, 0, 3],
#                  [0, 1, 2],
#                  [3, 2, 1]]

# coxeter_matrix = [[1, 2, 0, 0, 0, 2],
#                   [2, 1, 2, 0, 0, 0],
#                   [0, 2, 1, 2, 0, 0],
#                   [0, 0, 2, 1, 2, 0],
#                   [0, 0, 0, 2, 1, 2],
#                   [2, 0, 0, 0, 2, 1]]

graph = coxeter_automaton.generate_automaton_coxeter_matrix(coxeter_matrix, lex_reduced = False)
graph_shortlex = coxeter_automaton.generate_automaton_coxeter_matrix(coxeter_matrix, lex_reduced = True)

pprint(graph)

# group = coxeter_automaton.enumerate_group(graph, graph_shortlex, 10)

# for each group element g and generator a, print index of a*g
# print([[l.id if l else None for l in g.left] for g in group])