def test_normals():
vertices, name = stl.readstl('test/data/cube-txt.stl')
facets, pnts = stl.toindexed(vertices)
ni, nv = stl.normals(facets, pnts)
assert len(ni) == 12 # 6 faces, 2 facets/face.
p = np.arange(6)
assert np.all(ni == np.vstack((p, p)).T.reshape((1, -1)))
assert nv.shape == (6, 3)
def test_normals():
vertices, name = stl.readstl('data/cube-txt.stl')
facets, pnts = stl.toindexed(vertices)
ni, nv = stl.normals(facets, pnts)
assert len(ni) == 12 # 6 faces, 2 facets/face.
p = np.arange(6)
assert np.all(ni == np.vstack((p, p)).T.reshape((1, -1)))
assert nv.shape == (6, 3)
def test_text():
vertices, name = stl.readstl('data/cube-txt.stl')
facets, pnts = stl.toindexed(vertices)
ni, nv = stl.normals(facets, pnts)
res = stl.text('cube_txt', facets, pnts, ni, nv)
res = [ln.strip() for ln in res.splitlines()]
with open('data/cube-txt.stl') as inp:
orig = [ln.strip() for ln in inp.readlines()]
for a, b in zip(orig, res):
assert a == b
def main(argv):
"""Main program.
Keyword arguments:
argv -- command line arguments (without program name!)
"""
parser = argparse.ArgumentParser(description=__doc__)
parser.add_argument('-t', '--text', action='store_true',
help='print text representation of the file')
parser.add_argument('-b', '--binary', action='store_true',
help='write binary representation of the file')
parser.add_argument('-v', '--version', action='version',
version=__version__)
parser.add_argument('file', nargs='*', help='one or more file names')
args = parser.parse_args(argv)
if not args.file:
parser.print_help()
sys.exit(0)
for fn in args.file:
if not fn.lower().endswith('.stl'):
w = 'The file "{}" is probably not an STL file, skipping.'
print w.format(fn)
continue
try:
vertices, name = stl.readstl(fn)
if args.text or args.binary:
facets, points = stl.toindexed(vertices)
normals, vectors = stl.normals(facets, points)
except ValueError as e:
print fn + ':', e
continue
print "# Information for:", fn
print "# Generated by stlinfo {}".format(__version__)
print "# on {}.".format(time.asctime())
print '# Name: "{}"'.format(name)
print '# Number of facets:', len(vertices)/3
minx, maxx, miny, maxy, minz, maxz = bbox.makebb(vertices)
print '# Bounding box:'
print '# {} ≤ x ≤ {}'.format(minx, maxx)
print '# {} ≤ y ≤ {}'.format(miny, maxy)
print '# {} ≤ z ≤ {}'.format(minz, maxz)
if args.text:
print '# Text representation:'
print stl.text(name, facets, points, normals, vectors)
if args.binary:
on = utils.outname(fn, '.stl', '_bin')
print '# Writing binary represtation to "{}".'.format(on)
with open(on, 'w+b') as of:
of.write(stl.binary(name, facets, points, normals, vectors))
def main(argv):
"""
Entry point for stlinfo.
Arguments:
argv: command line arguments (without program name!)
"""
parser = argparse.ArgumentParser(description=__doc__)
parser.add_argument('-t',
'--text',
action='store_true',
help='print text representation of the file')
parser.add_argument('-b',
'--binary',
action='store_true',
help='write binary representation of the file')
parser.add_argument(
'-e',
'--encoding',
type=str,
help="encoding for the name of the STL object (default utf-8)",
default='utf-8')
parser.add_argument('-v',
'--version',
action='version',
version=__version__)
parser.add_argument('--log',
default='warning',
choices=['debug', 'info', 'warning', 'error'],
help="logging level (defaults to 'warning')")
parser.add_argument('file', nargs='*', help='one or more file names')
args = parser.parse_args(argv)
logging.basicConfig(level=getattr(logging, args.log.upper(), None),
format='%(levelname)s: %(message)s')
if not args.file:
parser.print_help()
sys.exit(0)
for fn in args.file:
if not fn.lower().endswith('.stl'):
w = 'The file "{}" is probably not an STL file, skipping.'
logging.warning(w.format(fn))
continue
try:
vertices, name = stl.readstl(fn, args.encoding)
if args.text or args.binary:
facets, points = stl.toindexed(vertices)
normals, vectors = stl.normals(facets, points)
except ValueError as e:
logging.error('{}: {}'.format(fn, e))
continue
print("# Information for:", fn)
print("# Generated by stlinfo {}".format(__version__))
print("# on {}.".format(time.asctime()))
print('# Name: "{}"'.format(name))
print('# Number of facets: {:.0f}'.format(len(vertices) / 3))
minx, maxx, miny, maxy, minz, maxz = bbox.makebb(vertices)
print('# Bounding box:')
print('# {} ≤ x ≤ {}'.format(minx, maxx))
print('# {} ≤ y ≤ {}'.format(miny, maxy))
print('# {} ≤ z ≤ {}'.format(minz, maxz))
if args.text:
print('# Text representation:')
print(stl.text(name, facets, points, normals, vectors))
if args.binary:
on = utils.outname(fn, '.stl', '_bin')
print('# Writing binary represtation to "{}".'.format(on))
with open(on, 'w+b') as of:
of.write(stl.binary(name, facets, points, normals, vectors))
from stltools import vecops as vo
logging.basicConfig(level='INFO', format='%(levelname)s: %(message)s')
logging.info('creating facet data')
vertices = np.array(
[[0, 0, 1], [1, 0, 1], [1, 0, 0], [0, 0, 0], [0, 1, 1], [1, 1, 1], [1, 1, 0], [0, 1, 0]],
np.float32
)
facets = np.array(
[
[0, 1, 4], [1, 5, 4], [0, 2, 1], [0, 3, 2], [4, 5, 6], [4, 6, 7], [3, 7, 2], [7, 6, 2],
[1, 2, 5], [5, 2, 6], [0, 4, 3], [3, 4, 7]
], np.uint16
)
logging.info('calculating normals')
ni, normals = stl.normals(facets, vertices)
logging.info('vertices:\n{}'.format(vertices))
logging.info('facets:\n{}'.format(facets))
logging.info('normals:\n{}'.format(normals))
logging.info('normal indices:\n{}'.format(ni))
logging.info('creating text STL data')
txtdata = stl.text('cube-txt', facets, vertices, ni, normals)
try:
with open('cube-txt.stl', 'w') as stlf:
stlf.write(txtdata)
logging.info('wrote text STL file cube-txt.stl')
except IOError as e:
logging.error('unable to write cube-txt.stl; {}'.format(e))
def main(argv):
"""
Entry point for stlinfo.
Arguments:
argv: command line arguments (without program name!)
"""
parser = argparse.ArgumentParser(description=__doc__)
parser.add_argument(
'-t', '--text', action='store_true', help='print text representation of the file'
)
parser.add_argument(
'-b', '--binary', action='store_true', help='write binary representation of the file'
)
parser.add_argument(
'-e',
'--encoding',
type=str,
help="encoding for the name of the STL object (default utf-8)",
default='utf-8'
)
parser.add_argument('-v', '--version', action='version', version=__version__)
parser.add_argument(
'--log',
default='warning',
choices=['debug', 'info', 'warning', 'error'],
help="logging level (defaults to 'warning')"
)
parser.add_argument('file', nargs='*', help='one or more file names')
args = parser.parse_args(argv)
logging.basicConfig(
level=getattr(logging, args.log.upper(), None), format='%(levelname)s: %(message)s'
)
if not args.file:
parser.print_help()
sys.exit(0)
for fn in args.file:
if not fn.lower().endswith('.stl'):
w = 'The file "{}" is probably not an STL file, skipping.'
logging.warning(w.format(fn))
continue
try:
vertices, name = stl.readstl(fn, args.encoding)
if args.text or args.binary:
facets, points = stl.toindexed(vertices)
normals, vectors = stl.normals(facets, points)
except ValueError as e:
logging.error('{}: {}'.format(fn, e))
continue
print("# Information for:", fn)
print("# Generated by stlinfo {}".format(__version__))
print("# on {}.".format(time.asctime()))
print('# Name: "{}"'.format(name))
print('# Number of facets: {:.0f}'.format(len(vertices) / 3))
minx, maxx, miny, maxy, minz, maxz = bbox.makebb(vertices)
print('# Bounding box:')
print('# {} ≤ x ≤ {}'.format(minx, maxx))
print('# {} ≤ y ≤ {}'.format(miny, maxy))
print('# {} ≤ z ≤ {}'.format(minz, maxz))
if args.text:
print('# Text representation:')
print(stl.text(name, facets, points, normals, vectors))
if args.binary:
on = utils.outname(fn, '.stl', '_bin')
print('# Writing binary represtation to "{}".'.format(on))
with open(on, 'w+b') as of:
of.write(stl.binary(name, facets, points, normals, vectors))
import numpy as np
from stltools import matrix as mx
from stltools import stl
from stltools import vecops as vo
logging.basicConfig(level='INFO', format='%(levelname)s: %(message)s')
logging.info('creating facet data')
vertices = np.array([[0, 0, 1], [1, 0, 1], [1, 0, 0], [0, 0, 0], [0, 1, 1],
[1, 1, 1], [1, 1, 0], [0, 1, 0]], np.float32)
facets = np.array(
[[0, 1, 4], [1, 5, 4], [0, 2, 1], [0, 3, 2], [4, 5, 6], [4, 6, 7],
[3, 7, 2], [7, 6, 2], [1, 2, 5], [5, 2, 6], [0, 4, 3], [3, 4, 7]],
np.uint16)
logging.info('calculating normals')
ni, normals = stl.normals(facets, vertices)
logging.info('vertices:\n{}'.format(vertices))
logging.info('facets:\n{}'.format(facets))
logging.info('normals:\n{}'.format(normals))
logging.info('normal indices:\n{}'.format(ni))
logging.info('creating text STL data')
txtdata = stl.text('cube-txt', facets, vertices, ni, normals)
try:
with open('cube-txt.stl', 'w') as stlf:
stlf.write(txtdata)
logging.info('wrote text STL file cube-txt.stl')
except IOError as e:
logging.error('unable to write cube-txt.stl; {}'.format(e))