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add program to normalize parts

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josch 2014-09-10 12:08:59 +02:00
parent 0511d591fa
commit fd7e9db28b
1 changed files with 107 additions and 0 deletions
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#!/usr/bin/env python
from __future__ import print_function
import sys
import os
import itertools
from functools import cmp_to_key
def transform(u,v,w,tm):
x,y,z,a,b,c,d,e,f,g,h,i = tm
return (a*u + b*v + c*w + x),(d*u + e*v + f*w + y),(g*u + h*v + i*w + z)
def handle_file(fname,lines,triangles,quads):
with open(fname) as f:
for line in f:
t = line.split()
if t[0] == '0':
continue
elif t[0] == '1':
c = int(t[1])
if c != 16:
print("no support for sub-files with other colors than 16", file=sys.stderr)
exit(1)
tm = [float(x) for x in t[2:-1]]
dn = os.path.dirname(fname)
fname2 = os.path.join(dn,t[-1])
lines2 = list()
triangles2 = list()
quads2 = list()
handle_file(fname2,lines2,triangles2,quads2)
# now apply the give transformation to the new lines, triangles and quads
for c,x1,y1,z1,x2,y2,z2 in lines2:
x1,y1,z1 = transform(x1,y1,z1,tm)
x2,y2,z2 = transform(x2,y2,z2,tm)
lines.append((c,x1,y1,z1,x2,y2,z2))
for c,x1,y1,z1,x2,y2,z2,x3,y3,z3 in triangles2:
x1,y1,z1 = transform(x1,y1,z1,tm)
x2,y2,z2 = transform(x2,y2,z2,tm)
x3,y3,z3 = transform(x3,y3,z3,tm)
triangles.append((c,x1,y1,z1,x2,y2,z2,x3,y3,z3))
for c,x1,y1,z1,x2,y2,z2,x3,y3,z3,x4,y4,z4 in quads2:
x1,y1,z1 = transform(x1,y1,z1,tm)
x2,y2,z2 = transform(x2,y2,z2,tm)
x3,y3,z3 = transform(x3,y3,z3,tm)
x4,y4,z4 = transform(x4,y4,z4,tm)
quads.append((c,x1,y1,z1,x2,y2,z2,x3,y3,z3,x4,y4,z4))
elif t[0] == '2':
c = int(t[1])
x1,y1,z1,x2,y2,z2 = [float(x) for x in t[2:]]
lines.append((c,x1,y1,z1,x2,y2,z2))
elif t[0] == '3':
c = int(t[1])
x1,y1,z1,x2,y2,z2,x3,y3,z3 = [float(x) for x in t[2:]]
triangles.append((c,x1,y1,z1,x2,y2,z2,x3,y3,z3))
elif t[0] == '4':
c = int(t[1])
x1,y1,z1,x2,y2,z2,x3,y3,z3,x4,y4,z4 = [float(x) for x in t[2:]]
quads.append((c,x1,y1,z1,x2,y2,z2,x3,y3,z3,x4,y4,z4))
else:
print("unknown line type: %s"%t[0], file=sys.stderr)
exit(1)
def rotate(cycle):
tcmp = lambda a,b: cmp(a[1],b[1])
smallest_idx = min(enumerate(cycle), key=cmp_to_key(tcmp))[0]
return cycle[smallest_idx:]+cycle[:smallest_idx]
def normalize_l(c,x1,y1,z1,x2,y2,z2):
if (x1,y1,z1) < (x2,y2,z2):
return (c,x1,y1,z1,x2,y2,z2)
else:
return (c,x2,y2,z2,x1,y1,z1)
def normalize_t(c,x1,y1,z1,x2,y2,z2,x3,y3,z3):
#pts = rotate([(x1,y1,z1),(x2,y2,z2),(x3,y3,z3)])
pts = [(x1,y1,z1),(x2,y2,z2),(x3,y3,z3)]
x1,y1,z1,x2,y2,z2,x3,y3,z3 = itertools.chain.from_iterable(pts)
return (c,x1,y1,z1,x2,y2,z2,x3,y3,z3)
def normalize_q(c,x1,y1,z1,x2,y2,z2,x3,y3,z3,x4,y4,z4):
#pts = rotate([(x1,y1,z1),(x2,y2,z2),(x3,y3,z3),(x4,y4,z4)])
pts = [(x1,y1,z1),(x2,y2,z2),(x3,y3,z3),(x4,y4,z4)]
x1,y1,z1,x2,y2,z2,x3,y3,z3,x4,y4,z4 = itertools.chain.from_iterable(pts)
return (c,x1,y1,z1,x2,y2,z2,x3,y3,z3,x4,y4,z4)
if __name__ == '__main__':
lines = list()
triangles = list()
quads = list()
handle_file(sys.argv[1],lines,triangles,quads)
# now normalize the lines, triangles and quads
lines = [ normalize_l(*x) for x in lines]
triangles = [ normalize_t(*x) for x in triangles]
quads = [ normalize_q(*x) for x in quads]
# now output the normalized values
with open(os.path.join(sys.argv[2],os.path.basename(sys.argv[1])), "w") as outfile:
# we round to six digits and add zero to avoid printing a negative zero
for c,x1,y1,z1,x2,y2,z2 in sorted(lines):
x1,y1,z1,x2,y2,z2 = [round(t,6)+0 for t in x1,y1,z1,x2,y2,z2]
outfile.write("2 %d %s %s %s %s %s %s\n"%(c,x1,y1,z1,x2,y2,z2))
for c,x1,y1,z1,x2,y2,z2,x3,y3,z3 in sorted(triangles):
x1,y1,z1,x2,y2,z2,x3,y3,z3 = [round(t,6)+0 for t in x1,y1,z1,x2,y2,z2,x3,y3,z3]
outfile.write("3 %d %s %s %s %s %s %s %s %s %s\n"%(c,x1,y1,z1,x2,y2,z2,x3,y3,z3))
for c,x1,y1,z1,x2,y2,z2,x3,y3,z3,x4,y4,z4 in sorted(quads):
x1,y1,z1,x2,y2,z2,x3,y3,z3,x4,y4,z4 = [round(t,6)+0 for t in x1,y1,z1,x2,y2,z2,x3,y3,z3,x4,y4,z4]
outfile.write("4 %d %s %s %s %s %s %s %s %s %s %s %s %s\n"%(c,x1,y1,z1,x2,y2,z2,x3,y3,z3,x4,y4,z4))