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_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)