openscad/Mendel90
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add support for python 3.2 and 3.3, retain backward compatibility

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This commit is contained in:
Brad Pitcher
2014-02-06 19:43:19 -08:00
parent 718e8ebd4d
commit 8eff5da9ca
9 changed files with 61 additions and 48 deletions
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22
c14n_stl.py
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@@ -5,8 +5,12 @@
# It then sorts the triangles to start with the one with the lowest vertices first (comparing first vertex, second, then third)
# This has no effect on the model but makes the STL consistent. I.e. it makes a canonical form.
#
from __future__ import print_function
import sys
class Vertex:
def __init__(self, x, y, z):
self.x, self.y, self.z = x, y, z
@@ -55,20 +59,20 @@ class STL:
self.facets.sort(key = Facet.key)
else:
print "Not an OpenSCAD ascii STL file"
print("Not an OpenSCAD ascii STL file")
sys.exit(1)
def write(self, fname):
f = open(fname,"wt")
print >> f,'solid OpenSCAD_Model'
print('solid OpenSCAD_Model', file=f)
for facet in self.facets:
print >> f, ' facet normal %s %s %s' % (facet.normal.dx, facet.normal.dy, facet.normal.dz)
print >> f, ' outer loop'
print(' facet normal %s %s %s' % (facet.normal.dx, facet.normal.dy, facet.normal.dz), file=f)
print(' outer loop', file=f)
for vertex in facet.vertices:
print >> f, ' vertex %s %s %s' % (vertex.x, vertex.y, vertex.z)
print >> f, ' endloop'
print >> f, ' endfacet'
print >> f, 'endsolid OpenSCAD_Model'
print(' vertex %s %s %s' % (vertex.x, vertex.y, vertex.z), file=f)
print(' endloop', file=f)
print(' endfacet', file=f)
print('endsolid OpenSCAD_Model', file=f)
f.close()
def canonicalise(fname):
@@ -79,5 +83,5 @@ if __name__ == '__main__':
if len(sys.argv) == 2:
canonicalise(sys.argv[1])
else:
print "usage: c14n_stl file"
print("usage: c14n_stl file")
sys.exit(1)