def readpoints(filename):
points = []
with open(filename) as f:
for line in f:
pid,x,y,z = [int(x) for x in line.split()]
points.append(mapPoint(pid,x,y,z))
return points
def calcCentroid(self,cluster,name):
x = 0.0
y = 0.0
z = 0.0
i = 0
for point in cluster:
x+=point.x
y+=point.y
z+=point.z
i+=1
return mapPoint(name,x/i,y/i,z/i)
