from __future__ import division
from math import pow, sqrt
[docs]
def line(p1, p2):
A = (p1[1] - p2[1])
B = (p2[0] - p1[0])
C = (p1[0]*p2[1] - p2[0]*p1[1])
return A, B, -C
[docs]
def intersection(P,Q):
L1 = line(P[0], P[1])
L2 = line(Q[0], Q[1])
D = L1[0] * L2[1] - L1[1] * L2[0]
Dx = L1[2] * L2[1] - L1[1] * L2[2]
Dy = L1[0] * L2[2] - L1[2] * L2[0]
if D != 0:
x = Dx / D
y = Dy / D
return [x,y]
else:
return []
[docs]
def dist(p1,p2):
return sqrt(pow(p1[0]- p2[0],2) + pow(p1[1]- p2[1],2))
[docs]
def distPair(a,b):
res = []
for i in range(len(a)):
d = dist(a[i],b[i])
res.append(d)
return res