def test_vertex_array_delete_slices():
tags = ExtendedTags.from_text(SPLINE)
vertices = VertexArray.from_tags(tags.get_subclass('AcDbSpline'))
del vertices[:2]
assert len(vertices) == 5
assert vertices[0] == (20, 20, 20)
vertices = VertexArray.from_tags(tags.get_subclass('AcDbSpline'))
del vertices[::2]
assert len(vertices) == 3
assert vertices[0] == (10, 10, 10)
assert vertices[1] == (30, 30, 30)
assert vertices[2] == (50, 50, 50)
def test_vertex_array_to_dxf_tags():
tags = ExtendedTags.from_text(SPLINE)
vertices = VertexArray.from_tags(tags.get_subclass('AcDbSpline'))
tags = TagCollector.dxftags(vertices)
assert len(tags) == 7 * 3
assert tags[0] == (10, 0.)
assert tags[3] == (10, 10.)
assert tags[-1] == (30, 60.)
def test_vertex_array_to_dxf_tags():
tags = ExtendedTags.from_text(SPLINE)
vertices = VertexArray.from_tags(tags.get_subclass('AcDbSpline'))
tags = list(vertices.dxftags())
assert len(tags) == 7
assert tags[0] == (10, (0., 0., 0.))
assert tags[1] == (10, (10., 10., 10.))
assert tags[-1] == (10, (60., 60., 60.))
def test_vertex_array_insert():
tags = ExtendedTags.from_text(SPLINE)
vertices = VertexArray.from_tags(tags.get_subclass('AcDbSpline'))
assert vertices[0] == (0, 0, 0)
assert vertices[1] == (10, 10, 10)
vertices.insert(1, (-1, -2, -3))
assert vertices[0] == (0, 0, 0)
assert vertices[1] == (-1, -2, -3)
assert vertices[2] == (10, 10, 10)
assert len(vertices) == 8
def test_vertex_array_delete():
tags = ExtendedTags.from_text(SPLINE)
vertices = VertexArray.from_tags(tags.get_subclass('AcDbSpline'))
assert len(vertices) == 7
assert vertices[0] == (0, 0, 0)
del vertices[0]
assert vertices[0] == (10, 10, 10)
assert len(vertices) == 6
del vertices[1] # (20, 20, 20)
assert vertices[1] == (30, 30, 30)
assert len(vertices) == 5
def test_vertex_array_basics():
tags = ExtendedTags.from_text(SPLINE)
vertices = VertexArray.from_tags(tags.get_subclass('AcDbSpline'))
assert len(vertices) == 7
points = list(vertices)
assert len(points) == 7
assert vertices[0] == (0., 0., 0.)
assert vertices[1] == (10., 10., 10.)
# test negative index
assert vertices[-1] == (60., 60., 60.)
with pytest.raises(IndexError):
_ = vertices[-8]
with pytest.raises(IndexError):
_ = vertices[8]
def test_vertex_array_advanced():
tags = ExtendedTags.from_text(SPLINE)
vertices = VertexArray.from_tags(tags.get_subclass('AcDbSpline'))
# append()
vertices.append((70, 70, 70))
assert len(vertices) == 8
assert vertices[-1] == (70., 70., 70.)
# set vertex
vertices[0] = (7, 6, 5)
assert vertices[0] == (7, 6, 5)
assert len(vertices) == 8
# clear()
vertices.clear()
assert len(vertices) == 0
# extend()
vertices.extend([(0, 0, 0), (1, 2, 3), (4, 5, 6)])
assert len(vertices) == 3
assert vertices[0] == (0, 0, 0)
assert vertices[1] == (1, 2, 3)
assert vertices[2] == (4, 5, 6)
