__author__ = 'thoth'

# mission by username12565 on IRC

import bpy
from math import *

def load_numbers(fname):
    with open(fname) as file:
        return [ float(line) for line in file if line.strip() !=""]


def mesh_for_cylinder(n, dz):
    name = "cylinder %d"%n
    mesh = bpy.data.meshes.get(name)
    if mesh is None:
        mesh = bpy.data.meshes.new(name)

        verts = []
        faces = []

        for i in range(n):
            theta = 2*pi*i/n
            v0 = [ cos(theta), sin(theta), dz]
            v1 = [ cos(theta), sin(theta), 0]
            verts.append(v0)
            verts.append(v1)
            i0 = i*2
            if i+1>=n:
                i2 = 0
            else:
                i2 = i0+2
            faces.append([i0, i0+1, i2+1, i2])
        # caps
        faces.append( [ i*2 for i in range(n)])
        faces.append( [ (n-i)*2-1 for i in range(n)])
        mesh.from_pydata(verts, [], faces)

    return mesh

def make_cylinders(scn, radii, n, dz):

    z=0
    mesh = mesh_for_cylinder(n, dz)
    for r in radii:
        name = "cyl @%f"%z
        obj = bpy.data.objects.new(name, mesh)
        scn.objects.link(obj)
        obj.location=(0,0,z)
        obj.scale = (r,r,1)

        z = z+dz

#

scn = bpy.context.scene

radii = load_numbers("/tmp/radii.txt")
make_cylinders(scn, radii, 24, 2)