city.py

#!/usr/bin/python

import random
import simple3d
import sys

class Bldg :

    def __init__(self, width, height, depth, anchor_pt) :
        self.vertex = []
        self.face = []
        self.edge = []
        # foundation
        self.vertex.append(anchor_pt)
        self.vertex.append([anchor_pt[0] + width, anchor_pt[1], anchor_pt[2]])
        self.vertex.append([anchor_pt[0], anchor_pt[1], anchor_pt[2] + depth])
        self.vertex.append([anchor_pt[0] + width, anchor_pt[1], anchor_pt[2] + depth])
        self.edge.append([0,1,0.,0.,0.2,1.])
        self.edge.append([0,2,0.,0.,0.2,1.])
        self.edge.append([2,3,0.,0.,0.2,1.])
        self.edge.append([3,1,0.,0.,0.2,1.])
        # roof
        self.vertex.append([anchor_pt[0], anchor_pt[1] + height, anchor_pt[2]])
        self.vertex.append([anchor_pt[0] + width, anchor_pt[1] + height, anchor_pt[2]])
        self.vertex.append([anchor_pt[0], anchor_pt[1] + height, anchor_pt[2] + depth])
        self.vertex.append([anchor_pt[0] + width, anchor_pt[1] + height, anchor_pt[2] + depth])
        self.edge.append([4,5,0.,0.,0.2,1.])
        self.edge.append([4,6,0.,0.,0.2,1.])
        self.edge.append([6,7,0.,0.,0.2,1.])
        self.edge.append([7,5,0.,0.,0.2,1.])
        # wall corners
        self.edge.append([0,4,0.,0.,0.2,1.])
        self.edge.append([1,5,0.,0.,0.2,1.])
        self.edge.append([2,6,0.,0.,0.2,1.])
        self.edge.append([3,7,0.,0.,0.2,1.])
        # walls
        # front
        self.face.append([0,5,1,0.8,0.8,0.8,1.])
        self.face.append([5,0,4,0.8,0.8,0.8,1.])
        # left
        self.face.append([0,2,4,0.8,0.8,0.8,1.])
        self.face.append([2,6,4,0.8,0.8,0.8,1.])
        # right
        self.face.append([1,5,7,0.8,0.8,0.8,1.])
        self.face.append([7,3,1,0.8,0.8,0.8,1.])
        # top
        self.face.append([5,4,6,0.8,0.8,0.8,1.])
        self.face.append([5,6,7,0.8,0.8,0.8,1.])
        # back
        self.face.append([3,7,6,0.8,0.8,0.8,1.])
        self.face.append([3,6,2,0.8,0.8,0.8,1.])
        # the building has no floor
        
        
if __name__ == '__main__' :
    bldg = Bldg(1.,1.,1.,[0.,0.,0.])
    city = simple3d.Simple3d()
    for v in bldg.vertex :
        city.append_vertex(v[0], v[1], v[2])
    for e in bldg.edge :
        city.append_edge(e[0], e[1], e[2], e[3], e[4], e[5])
    for f in bldg.face :
        city.append_face(f[0], f[1], f[2], f[3], f[4], f[5], f[6])
    
    # object gets named after the script that made it
    objname = sys.argv[0][0:-3]
    city.store_object("objects", objname)
    # make a "wavefront" .obj version for Inkscape
    city.store_as_wf_obj("objects", objname + '.obj', 'e')