def test_precision(self):
pface = Polyface(precision=3)
pface.add_vertex( (1.0001, 1.0, 1.0) )
pface.add_vertex( (1.0002, 1.0, 1.0) )
self.assertEqual(len(pface.vertices), 1)
pface.add_vertex( (1.001, 1.0, 1.0) )
self.assertEqual(len(pface.vertices), 2)
def test_optimize_simple_4points_polyface(self):
pface = Polyface()
pface.add_face([(0,0), (1,0), (1,1), (0,0)]) # 1 == 4 -> use vt1 instead of vt4
vt1 = " 0\nVERTEX\n 8\n0\n 10\n0.0\n 20\n0.0\n 30\n0.0\n 70\n192\n"
vt2 = " 0\nVERTEX\n 8\n0\n 10\n1.0\n 20\n0.0\n 30\n0.0\n 70\n192\n"
vt3 = " 0\nVERTEX\n 8\n0\n 10\n1.0\n 20\n1.0\n 30\n0.0\n 70\n192\n"
vtface = " 0\nVERTEX\n 62\n0\n 8\n0\n 10\n0.0\n 20\n0.0\n 30\n0.0\n 70\n128\n" \
" 71\n1\n 72\n2\n 73\n3\n 74\n1\n"
expected = " 0\nPOLYLINE\n 8\n0\n 66\n1\n" \
" 70\n64\n 71\n3\n 72\n1\n" + vt1 + vt2 + vt3 + vtface + " 0\nSEQEND\n"
self.assertEqual(dxfstr(pface), expected)
def test_stable_order(self):
pface = Polyface()
pface.add_face([(0,0), (1,1), (1,0)])
vt1 = " 0\nVERTEX\n 8\n0\n 10\n0.0\n 20\n0.0\n 30\n0.0\n 70\n192\n"
vt2 = " 0\nVERTEX\n 8\n0\n 10\n1.0\n 20\n1.0\n 30\n0.0\n 70\n192\n"
vt3 = " 0\nVERTEX\n 8\n0\n 10\n1.0\n 20\n0.0\n 30\n0.0\n 70\n192\n"
vtface = " 0\nVERTEX\n 62\n0\n 8\n0\n 10\n0.0\n 20\n0.0\n 30\n0.0\n 70\n128\n" \
" 71\n1\n 72\n2\n 73\n3\n"
expected = " 0\nPOLYLINE\n 8\n0\n 66\n1\n" \
" 70\n64\n 71\n3\n 72\n1\n" + vt1 + vt2 + vt3 + vtface + " 0\nSEQEND\n"
self.assertEqual(dxfstr(pface), expected)
def test_stable_order(self):
pface = Polyface()
pface.add_face([(0, 0), (1, 1), (1, 0)])
vt1 = " 0\nVERTEX\n 8\n0\n 10\n0.0\n 20\n0.0\n 30\n0.0\n 70\n192\n"
vt2 = " 0\nVERTEX\n 8\n0\n 10\n1.0\n 20\n1.0\n 30\n0.0\n 70\n192\n"
vt3 = " 0\nVERTEX\n 8\n0\n 10\n1.0\n 20\n0.0\n 30\n0.0\n 70\n192\n"
vtface = " 0\nVERTEX\n 62\n0\n 8\n0\n 10\n0.0\n 20\n0.0\n 30\n0.0\n 70\n128\n" \
" 71\n1\n 72\n2\n 73\n3\n"
expected = " 0\nPOLYLINE\n 8\n0\n 66\n1\n" \
" 70\n64\n 71\n3\n 72\n1\n" + vt1 + vt2 + vt3 + vtface + " 0\nSEQEND\n"
self.assertEqual(dxfstr(pface), expected)
def test_optimize_simple_4points_polyface(self):
pface = Polyface()
pface.add_face([(0,0), (1,0), (1,1), (0,0)]) # 1 == 4 -> use vt1 instead of vt4
vt1 = " 0\nVERTEX\n 8\n0\n 10\n0.0\n 20\n0.0\n 30\n0.0\n 70\n192\n"
vt2 = " 0\nVERTEX\n 8\n0\n 10\n1.0\n 20\n0.0\n 30\n0.0\n 70\n192\n"
vt3 = " 0\nVERTEX\n 8\n0\n 10\n1.0\n 20\n1.0\n 30\n0.0\n 70\n192\n"
vtface = " 0\nVERTEX\n 62\n0\n 8\n0\n 10\n0.0\n 20\n0.0\n 30\n0.0\n 70\n128\n" \
" 71\n1\n 72\n2\n 73\n3\n 74\n1\n"
expected = " 0\nPOLYLINE\n 8\n0\n 66\n1\n" \
" 70\n64\n 71\n3\n 72\n1\n" + vt1 + vt2 + vt3 + vtface + " 0\nSEQEND\n"
self.assertEqual(dxfstr(pface), expected)
def polyface(precision=6, **kwargs):
""" Create a new polyface entity, polyface is a dxf-polyline entity!
:param precision: vertex-coords will be rounded to precision places, and if
the vertex is equal to an other vertex, only one vertex will be used,
this reduces filespace, the coords will be rounded only for the
comparison of the vertices, the output file has the full float
resolution.
"""
return Polyface(precision, **kwargs)
def test_precision(self):
pface = Polyface(precision=3)
pface.add_vertex((1.0001, 1.0, 1.0))
pface.add_vertex((1.0002, 1.0, 1.0))
self.assertEqual(len(pface.vertices), 1)
pface.add_vertex((1.001, 1.0, 1.0))
self.assertEqual(len(pface.vertices), 2)
def test_cube_of_polyfaces(self):
pface = Polyface()
# cube corner points
p1 = pface.add_vertex( (0,0,0) )
p2 = pface.add_vertex( (0,0,1) )
p3 = pface.add_vertex( (0,1,0) )
p4 = pface.add_vertex( (0,1,1) )
p5 = pface.add_vertex( (1,0,0) )
p6 = pface.add_vertex( (1,0,1) )
p7 = pface.add_vertex( (1,1,0) )
p8 = pface.add_vertex( (1,1,1) )
# define the 6 cube faces
# look into -x direction
pface.add_face_by_indices([p1, p5, p7, p3]) # base
pface.add_face_by_indices([p1, p5, p6, p2]) # left
pface.add_face_by_indices([p5, p7, p8, p6]) # front
pface.add_face_by_indices([p7, p8, p4, p3]) # right
pface.add_face_by_indices([p1, p3, p4, p2]) # back
pface.add_face_by_indices([p2, p6, p8, p4]) # top
vt = " 0\nVERTEX\n 8\n0\n 10\n0.0\n 20\n0.0\n 30\n0.0\n 70\n192\n" + \
" 0\nVERTEX\n 8\n0\n 10\n0.0\n 20\n0.0\n 30\n1.0\n 70\n192\n" + \
" 0\nVERTEX\n 8\n0\n 10\n0.0\n 20\n1.0\n 30\n0.0\n 70\n192\n" + \
" 0\nVERTEX\n 8\n0\n 10\n0.0\n 20\n1.0\n 30\n1.0\n 70\n192\n" + \
" 0\nVERTEX\n 8\n0\n 10\n1.0\n 20\n0.0\n 30\n0.0\n 70\n192\n" + \
" 0\nVERTEX\n 8\n0\n 10\n1.0\n 20\n0.0\n 30\n1.0\n 70\n192\n" + \
" 0\nVERTEX\n 8\n0\n 10\n1.0\n 20\n1.0\n 30\n0.0\n 70\n192\n" + \
" 0\nVERTEX\n 8\n0\n 10\n1.0\n 20\n1.0\n 30\n1.0\n 70\n192\n"
vtf_prefix = " 0\nVERTEX\n 62\n0\n 8\n0\n 10\n0.0\n 20\n0.0\n 30\n0.0\n 70\n128\n"
vtf = vtf_prefix + " 71\n1\n 72\n5\n 73\n7\n 74\n3\n" + \
vtf_prefix + " 71\n1\n 72\n5\n 73\n6\n 74\n2\n" + \
vtf_prefix + " 71\n5\n 72\n7\n 73\n8\n 74\n6\n" + \
vtf_prefix + " 71\n7\n 72\n8\n 73\n4\n 74\n3\n" + \
vtf_prefix + " 71\n1\n 72\n3\n 73\n4\n 74\n2\n" + \
vtf_prefix + " 71\n2\n 72\n6\n 73\n8\n 74\n4\n"
expected = " 0\nPOLYLINE\n 8\n0\n 66\n1\n" \
" 70\n64\n 71\n8\n 72\n6\n" + vt + vtf + " 0\nSEQEND\n"
self.assertEqual(dxfstr(pface), expected)
def test_cube_of_polyfaces(self):
pface = Polyface()
# cube corner points
p1 = pface.add_vertex((0, 0, 0))
p2 = pface.add_vertex((0, 0, 1))
p3 = pface.add_vertex((0, 1, 0))
p4 = pface.add_vertex((0, 1, 1))
p5 = pface.add_vertex((1, 0, 0))
p6 = pface.add_vertex((1, 0, 1))
p7 = pface.add_vertex((1, 1, 0))
p8 = pface.add_vertex((1, 1, 1))
# define the 6 cube faces
# look into -x direction
pface.add_face_by_indices([p1, p5, p7, p3]) # base
pface.add_face_by_indices([p1, p5, p6, p2]) # left
pface.add_face_by_indices([p5, p7, p8, p6]) # front
pface.add_face_by_indices([p7, p8, p4, p3]) # right
pface.add_face_by_indices([p1, p3, p4, p2]) # back
pface.add_face_by_indices([p2, p6, p8, p4]) # top
vt = " 0\nVERTEX\n 8\n0\n 10\n0.0\n 20\n0.0\n 30\n0.0\n 70\n192\n" + \
" 0\nVERTEX\n 8\n0\n 10\n0.0\n 20\n0.0\n 30\n1.0\n 70\n192\n" + \
" 0\nVERTEX\n 8\n0\n 10\n0.0\n 20\n1.0\n 30\n0.0\n 70\n192\n" + \
" 0\nVERTEX\n 8\n0\n 10\n0.0\n 20\n1.0\n 30\n1.0\n 70\n192\n" + \
" 0\nVERTEX\n 8\n0\n 10\n1.0\n 20\n0.0\n 30\n0.0\n 70\n192\n" + \
" 0\nVERTEX\n 8\n0\n 10\n1.0\n 20\n0.0\n 30\n1.0\n 70\n192\n" + \
" 0\nVERTEX\n 8\n0\n 10\n1.0\n 20\n1.0\n 30\n0.0\n 70\n192\n" + \
" 0\nVERTEX\n 8\n0\n 10\n1.0\n 20\n1.0\n 30\n1.0\n 70\n192\n"
vtf_prefix = " 0\nVERTEX\n 62\n0\n 8\n0\n 10\n0.0\n 20\n0.0\n 30\n0.0\n 70\n128\n"
vtf = vtf_prefix + " 71\n1\n 72\n5\n 73\n7\n 74\n3\n" + \
vtf_prefix + " 71\n1\n 72\n5\n 73\n6\n 74\n2\n" + \
vtf_prefix + " 71\n5\n 72\n7\n 73\n8\n 74\n6\n" + \
vtf_prefix + " 71\n7\n 72\n8\n 73\n4\n 74\n3\n" + \
vtf_prefix + " 71\n1\n 72\n3\n 73\n4\n 74\n2\n" + \
vtf_prefix + " 71\n2\n 72\n6\n 73\n8\n 74\n4\n"
expected = " 0\nPOLYLINE\n 8\n0\n 66\n1\n" \
" 70\n64\n 71\n8\n 72\n6\n" + vt + vtf + " 0\nSEQEND\n"
self.assertEqual(dxfstr(pface), expected)