def tcenter(poly):
a = []
c = []
for vl in Polygon.TriStrip(poly):
for i in range(len(vl) - 2):
a.append(aTri(vl[i], vl[i + 1], vl[i + 2]))
c.append(cTri(vl[i], vl[i + 1], vl[i + 2]))
a = map(lambda x, y=reduce(add, a): x / y, a)
return reduce(add, map(lambda i,j: i*j[0], a, c)),\
reduce(add, map(lambda i,j: i*j[1], a, c))
def triangulate2(points):
if len(points) == 3:
return (points, )
if len(points) == 4:
return ((points[0], points[1], points[2]), (points[0], points[2],
points[3]))
import Polygon
q = Polygon.Polygon(points)
strips = Polygon.TriStrip(q)
tri = []
for t in strips:
for n in range(len(t) - 2):
tri.append((t[n], t[n + 1], t[n + 2]))
return tri
def tarea(poly):
a = []
for vl in Polygon.TriStrip(poly):
for i in range(len(vl) - 2):
a.append(aTri(vl[i], vl[i + 1], vl[i + 2]))
return reduce(add, a)
