from visual import *
oberflaeche = frame ()
a=100
b=0.5
c=30
flaeche = box (frame = oberflaeche, pos = (0,0,0),\
                length=(a), high= (b), width= (a), color=color.red)
wand1= box (frame = oberflaeche, pos = (0.5*a-0.5*b,2*b,0),\
            length=(b), width=(a), high=(c))
wand2= box (frame = oberflaeche, pos = (-0.5*a+0.5*b,2*b,0),\
            length=(b), width=(a), high=(c))
wand3= box (frame = oberflaeche, pos = (0,2*b,0.5*a-0.5*b),\
            length=(a), width=(b), high=(c))
wand4= box (frame = oberflaeche, pos = (0,2*b,-0.5*a+0.5*b),\
            length=(a), width=(b), high=(c))
#kugel= sphere(radius=(b/2-10))