import copy
import datetime
import numpy
import pytest
from conftest import ANNOTATION_FILE_PATH, SURFACE_FILE_PATH
from freesurfer_surface import (
Annotation,
LineSegment,
PolygonalCircuit,
Surface,
Triangle,
Vertex,
setlocale,
)
# pylint: disable=protected-access
def test_read_triangular():
surface = Surface.read_triangular(SURFACE_FILE_PATH)
assert surface.creator == b"fabianpeter"
assert surface.creation_datetime == datetime.datetime(2019, 5, 9, 22, 37, 41)
assert len(surface.vertices) == 155622
assert len(surface.triangles) == 311240
assert not surface.using_old_real_ras
assert surface.volume_geometry_info == (
b"valid = 1 # volume info valid\n",
b"filename = ../mri/filled-pretess255.mgz\n",
b"volume = 256 256 256\n",
b"voxelsize = 1.000000000000000e+00 1.000000000000000e+00 1.000000000000000e+00\n",
b"xras = -1.000000000000000e+00 0.000000000000000e+00 1.862645149230957e-09\n",
b"yras = 0.000000000000000e+00 -6.655682227574289e-09 -1.000000000000000e+00\n",
b"zras = 0.000000000000000e+00 1.000000000000000e+00 -8.300048648379743e-09\n",
b"cras = -2.773597717285156e+00 1.566547393798828e+01 -7.504364013671875e+00\n",
)
assert surface.command_lines == [
b"mris_remove_intersection ../surf/lh.orig ../surf/lh.orig"
b" ProgramVersion: $Name: stable6 $"
b" TimeStamp: 2019/05/09-17:42:36-GMT"
b" BuildTimeStamp: Jan 18 2017 16:38:58"
b" CVS: $Id: mris_remove_intersection.c,v 1.6 2011/03/02 00:04:32 nicks Exp $"
b" User: fabianpeter"
b" Machine: host12345"
b" Platform: Linux"
b" PlatformVersion: 4.15.0-46-generic"
b" CompilerName: GCC"
b" CompilerVersion: 40400"
b" ",
b"mris_make_surfaces -orig_white white.preaparc -orig_pial white.preaparc"
b" -aseg ../mri/aseg.presurf -mgz -T1 brain.finalsurfs"
b" fabian20190509 lh ProgramVersion: $Name: $"
b" TimeStamp: 2019/05/09-20:27:28-GMT"
b" BuildTimeStamp: Jan 18 2017 16:38:58"
b" CVS: $Id: mris_make_surfaces.c,v 1.164.2.4 2016/12/13 22:26:32 zkaufman Exp $"
b" User: fabianpeter"
b" Machine: host12345"
b" Platform: Linux"
b" PlatformVersion: 4.15.0-46-generic"
b" CompilerName: GCC"
b" CompilerVersion: 40400"
b" ",
]
def test_read_triangular_locale():
with setlocale("de_AT.utf8"):
surface = Surface.read_triangular(SURFACE_FILE_PATH)
assert surface.creation_datetime == datetime.datetime(2019, 5, 9, 22, 37, 41)
@pytest.mark.parametrize(
("creation_datetime", "expected_str"),
[
(datetime.datetime(2019, 5, 9, 22, 37, 41), b"Thu May 9 22:37:41 2019"),
(datetime.datetime(2019, 4, 24, 23, 29, 22), b"Wed Apr 24 23:29:22 2019"),
],
)
def test_triangular_strftime(creation_datetime, expected_str):
# pylint: disable=protected-access
assert expected_str == Surface._triangular_strftime(creation_datetime)
def test_read_write_triangular_same(tmpdir):
surface = Surface.read_triangular(SURFACE_FILE_PATH)
output_path = tmpdir.join("surface").strpath
surface.write_triangular(output_path, creation_datetime=surface.creation_datetime)
with open(output_path, "rb") as output_file:
with open(SURFACE_FILE_PATH, "rb") as expected_file:
assert expected_file.read() == output_file.read()
def test_read_write_datetime(tmpdir):
surface = Surface.read_triangular(SURFACE_FILE_PATH)
original_creation_datetime = surface.creation_datetime
output_path = tmpdir.join("surface").strpath
surface.write_triangular(output_path)
assert original_creation_datetime == surface.creation_datetime
new_surface = Surface.read_triangular(output_path)
assert new_surface.creation_datetime > original_creation_datetime
assert datetime.datetime.now() > new_surface.creation_datetime
assert (
datetime.datetime.now() - new_surface.creation_datetime
) < datetime.timedelta(seconds=20)
def test_write_read_triangular_same(tmpdir):
expected_surface = Surface()
expected_surface.creator = b"pytest"
expected_surface.creation_datetime = datetime.datetime.now().replace(microsecond=0)
expected_surface.vertices = [
Vertex(0.0, 0.0, 0.0),
Vertex(1.0, 2.0, 3.0),
Vertex(2.0, 4.0, 6.0),
Vertex(3.0, 5.0, 7.0),
]
expected_surface.triangles = [
Triangle((0, 1, 2)),
Triangle((0, 1, 3)),
Triangle((3, 2, 1)),
]
expected_surface.using_old_real_ras = False
expected_surface.volume_geometry_info = tuple(b"?\n" for _ in range(8))
expected_surface.command_lines = [b"?", b"!"]
output_path = tmpdir.join("surface").strpath
expected_surface.write_triangular(
output_path, creation_datetime=expected_surface.creation_datetime
)
resulted_surface = Surface.read_triangular(output_path)
assert numpy.array_equal(expected_surface.vertices, resulted_surface.vertices)
expected_surface.vertices = resulted_surface.vertices = []
assert vars(expected_surface) == vars(resulted_surface)
def test_write_triangular_same_locale(tmpdir):
surface = Surface()
surface.creator = b"pytest"
surface.volume_geometry_info = tuple(b"?" for _ in range(8))
creation_datetime = datetime.datetime(2018, 12, 31, 21, 42)
output_path = tmpdir.join("surface").strpath
with setlocale("de_AT.utf8"):
surface.write_triangular(output_path, creation_datetime=creation_datetime)
resulted_surface = Surface.read_triangular(output_path)
assert resulted_surface.creation_datetime == creation_datetime
with open(output_path, "rb") as output_file:
assert (
output_file.read()
.split(b" on ")[1]
.startswith(b"Mon Dec 31 21:42:00 2018\n")
)
def test_load_annotation():
surface = Surface.read_triangular(SURFACE_FILE_PATH)
assert not surface.annotation
surface.load_annotation_file(ANNOTATION_FILE_PATH)
assert isinstance(surface.annotation, Annotation)
assert len(surface.annotation.vertex_label_index) == 155622
assert surface.annotation.vertex_label_index[0] == 5
def test_add_vertex():
surface = Surface()
assert not surface.vertices
assert surface.add_vertex(Vertex(1.0, 1.5, 2.0)) == 0
assert len(surface.vertices) == 1
assert surface.vertices[0].anterior == pytest.approx(1.5)
assert surface.add_vertex(Vertex(-3.0, 0.0, 4.0)) == 1
assert len(surface.vertices) == 2
assert surface.vertices[1].right == pytest.approx(-3.0)
@pytest.mark.parametrize(
"vertices_coords",
[
((0, 0, 0), (2, 4, 0), (2, 4, 3)),
((0, 0, 0), (2, 4, 0), (2, 4, 3), (0, 0, 3)),
((1, 1, 0), (3, 5, 0), (3, 5, 3), (1, 1, 3)),
((1, 1, 7), (3, 5, 7), (3, 5, 3), (1, 1, 3)),
((1, 1, 1), (3, 5, 7), (3, 5, 9), (1, 1, 3)),
((3, 5, 7), (1, 1, 1), (1, 1, 3)),
((3, 5, 7), (1, 1, 1), (1, 1, 3), (3, 5, 9)),
],
)
def test_add_rectangle(vertices_coords):
surface = Surface()
for vertex_coords in vertices_coords:
surface.add_vertex(Vertex(*(float(c) for c in vertex_coords)))
surface.add_rectangle(range(len(vertices_coords)))
assert len(surface.vertices) == 4
assert len(surface.triangles) == 2
assert surface.triangles[0].vertex_indices == (0, 1, 2)
assert surface.triangles[1].vertex_indices == (2, 3, 0)
@pytest.mark.parametrize(
("vertices_coords", "expected_extra_vertex_coords"),
[
(((0, 0, 0), (2, 4, 0), (2, 4, 3)), (0, 0, 3)),
(((1, 1, 0), (3, 5, 0), (3, 5, 3)), (1, 1, 3)),
(((1, 1, 7), (3, 5, 7), (3, 5, 3)), (1, 1, 3)),
(((1, 1, 1), (3, 5, 7), (3, 5, 9)), (1, 1, 3)),
(((3, 5, 7), (1, 1, 1), (1, 1, 3)), (3, 5, 9)),
],
)
def test_add_rectangle_3(vertices_coords, expected_extra_vertex_coords):
surface = Surface()
for vertex_coords in vertices_coords:
surface.add_vertex(Vertex(*(float(c) for c in vertex_coords)))
surface.add_rectangle(range(3))
assert tuple(surface.vertices[3]) == pytest.approx(expected_extra_vertex_coords)
def test__triangle_count_by_adjacent_vertex_indices_empty():
surface = Surface()
assert surface._triangle_count_by_adjacent_vertex_indices() == {}
def test__triangle_count_by_adjacent_vertex_indices_none():
surface = Surface()
surface.vertices.append(Vertex(1, 0, 0))
surface.vertices.append(Vertex(2, 0, 0))
surface.vertices.append(Vertex(3, 0, 0))
assert surface._triangle_count_by_adjacent_vertex_indices() == {0: {}, 1: {}, 2: {}}
def test__triangle_count_by_adjacent_vertex_indices_single():
surface = Surface()
surface.triangles.append(
Triangle([surface.add_vertex(Vertex(i, 0, 0)) for i in range(3)])
)
assert surface._triangle_count_by_adjacent_vertex_indices() == {
0: {1: 1, 2: 1},
1: {0: 1, 2: 1},
2: {0: 1, 1: 1},
}
def test__triangle_count_by_adjacent_vertex_indices_multiple():
surface = Surface()
for i in range(5):
surface.add_vertex(Vertex(i, 0, 0))
surface.triangles.append(Triangle((0, 1, 2)))
surface.triangles.append(Triangle((3, 1, 2)))
assert surface._triangle_count_by_adjacent_vertex_indices() == {
0: {1: 1, 2: 1},
1: {0: 1, 2: 2, 3: 1},
2: {0: 1, 1: 2, 3: 1},
3: {1: 1, 2: 1},
4: {},
}
surface.triangles.append(Triangle((3, 4, 2)))
assert surface._triangle_count_by_adjacent_vertex_indices() == {
0: {1: 1, 2: 1},
1: {0: 1, 2: 2, 3: 1},
2: {0: 1, 1: 2, 3: 2, 4: 1},
3: {1: 1, 2: 2, 4: 1},
4: {2: 1, 3: 1},
}
surface.triangles.append(Triangle((3, 0, 2)))
assert surface._triangle_count_by_adjacent_vertex_indices() == {
0: {1: 1, 2: 2, 3: 1},
1: {0: 1, 2: 2, 3: 1},
2: {0: 2, 1: 2, 3: 3, 4: 1},
3: {0: 1, 1: 1, 2: 3, 4: 1},
4: {2: 1, 3: 1},
}
def test__triangle_count_by_adjacent_vertex_indices_real():
surface = Surface.read_triangular(SURFACE_FILE_PATH)
counts = surface._triangle_count_by_adjacent_vertex_indices()
assert len(counts) == len(surface.vertices)
assert all(counts.values())
assert all(
count == 2
for vertex_counts in counts.values()
for count in vertex_counts.values()
)
assert (
sum(
count
for vertex_counts in counts.values()
for count in vertex_counts.values()
)
== len(surface.triangles) * 6
)
def test_find_borders_none():
surface = Surface.read_triangular(SURFACE_FILE_PATH)
assert not list(surface.find_borders())
def test_find_borders_single():
surface = Surface.read_triangular(SURFACE_FILE_PATH)
single_index = surface.add_vertex(Vertex(0, 21, 42))
borders = list(surface.find_borders())
assert len(borders) == 1
assert borders[0] == PolygonalCircuit((single_index,))
def test_find_borders_singles():
surface = Surface.read_triangular(SURFACE_FILE_PATH)
single_indices = [surface.add_vertex(Vertex(i, 21, 42)) for i in range(3)]
borders = set(surface.find_borders())
assert len(borders) == 3
assert PolygonalCircuit((single_indices[0],)) in borders
assert PolygonalCircuit((single_indices[1],)) in borders
assert PolygonalCircuit((single_indices[2],)) in borders
def test_find_borders_single_triangle_simple():
surface = Surface()
vertex_indices = [surface.add_vertex(Vertex(i, 21, 42)) for i in range(3)]
surface.triangles.append(Triangle(vertex_indices))
borders = set(surface.find_borders())
assert len(borders) == 1
assert PolygonalCircuit(vertex_indices) in borders
def test_find_borders_single_triangle_real():
surface = Surface.read_triangular(SURFACE_FILE_PATH)
vertex_indices = [surface.add_vertex(Vertex(i, 21, 42)) for i in range(3)]
surface.triangles.append(Triangle(vertex_indices))
borders = set(surface.find_borders())
assert len(borders) == 1
assert PolygonalCircuit(vertex_indices) in borders
def test_find_borders_remove_triangle():
surface = Surface.read_triangular(SURFACE_FILE_PATH)
triangle = surface.triangles.pop()
borders = set(surface.find_borders())
assert len(borders) == 1
assert triangle in borders
def test_find_borders_remove_non_adjacent_triangles():
surface = Surface.read_triangular(SURFACE_FILE_PATH)
triangles = [surface.triangles.pop(), surface.triangles.pop()]
borders = set(surface.find_borders())
assert len(borders) == 2
assert triangles[0] in borders
assert triangles[1] in borders
def test_find_borders_remove_adjacent_triangles():
surface = Surface.read_triangular(SURFACE_FILE_PATH)
triangles = [surface.triangles.pop(), surface.triangles.pop()]
triangles.append(surface.triangles.pop(270682))
assert triangles[1] == Triangle((136141, 136142, 137076))
assert triangles[2] == Triangle((136141, 136142, 135263))
borders = set(surface.find_borders())
assert len(borders) == 2
assert triangles[0] in borders
assert PolygonalCircuit((137076, 136141, 135263, 136142)) in borders
surface.triangles.pop(270682)
borders = set(surface.find_borders())
assert len(borders) == 2
assert triangles[0] in borders
assert PolygonalCircuit((137076, 136141, 135263, 135264, 136142)) in borders
surface.triangles.pop(274320)
borders = set(surface.find_borders())
assert len(borders) == 2
assert PolygonalCircuit((136143, 138007, 138008, 137078)) in borders
assert PolygonalCircuit((137076, 136141, 135263, 135264, 136142)) in borders
@pytest.mark.parametrize(
("label_name", "expected_border_lens"),
[
("precentral", [416]),
("postcentral", [395]),
("medialorbitofrontal", [6, 246]),
# ...--2343 2347
# \ / \
# 2345 2348
# / \ /
# ...--2344 2346
("posteriorcingulate", [4, 190]),
("unknown", [3, 390]),
],
)
def test_find_borders_real(label_name, expected_border_lens):
surface = Surface.read_triangular(SURFACE_FILE_PATH)
surface.load_annotation_file(ANNOTATION_FILE_PATH)
(label,) = filter(
lambda l: l.name == label_name, surface.annotation.labels.values()
)
surface.triangles = list(
filter(
lambda t: all(
surface.annotation.vertex_label_index[vertex_idx] == label.index
for vertex_idx in t.vertex_indices
),
surface.triangles,
)
)
surface.remove_unused_vertices()
borders = list(surface.find_borders())
border_lens = [len(b.vertex_indices) for b in borders]
# self-crossing borders may or may not be split into
# separate polygonal circuits
assert sorted(border_lens) == expected_border_lens or sum(border_lens) == sum(
expected_border_lens
)
def test__get_vertex_label_index():
surface = Surface.read_triangular(SURFACE_FILE_PATH)
surface.load_annotation_file(ANNOTATION_FILE_PATH)
# pylint: disable=protected-access
assert surface._get_vertex_label_index(64290) == 22
assert surface._get_vertex_label_index(72160) == 22
assert surface._get_vertex_label_index(84028) == 24
assert surface._get_vertex_label_index(97356) == 24
assert surface._get_vertex_label_index(123173) == 27
assert surface._get_vertex_label_index(140727) == 27
assert surface._get_vertex_label_index(93859) == 28
assert surface._get_vertex_label_index(78572) == 0
assert surface._get_vertex_label_index(120377) == 0
vertex_index = surface.add_vertex(Vertex(0.0, 21.0, 42.0))
assert surface._get_vertex_label_index(vertex_index) is None
del surface.annotation.vertex_label_index[140727]
assert surface._get_vertex_label_index(140727) is None
def test__find_label_border_segments():
surface = Surface.read_triangular(SURFACE_FILE_PATH)
surface.load_annotation_file(ANNOTATION_FILE_PATH)
(precentral_label,) = filter(
lambda l: l.name == "precentral", surface.annotation.labels.values()
)
# pylint: disable=protected-access
border_segments = set(surface._find_label_border_segments(precentral_label))
assert len(border_segments) == 417
assert LineSegment((33450, 32065)) in border_segments
assert LineSegment((33454, 33450)) in border_segments
for border_vertex_index in [33450, 33454, 32065]:
assert (
surface.annotation.vertex_label_index[border_vertex_index]
== precentral_label.index
)
for other_vertex_index in [32064, 33449, 33455, 33449, 33455]:
assert (
LineSegment((other_vertex_index, border_vertex_index))
not in border_segments
)
assert (
LineSegment((border_vertex_index, other_vertex_index))
not in border_segments
)
def test__find_label_border_segments_incomplete_annotation():
surface = Surface.read_triangular(SURFACE_FILE_PATH)
surface.load_annotation_file(ANNOTATION_FILE_PATH)
(precentral_label,) = filter(
lambda l: l.name == "precentral", surface.annotation.labels.values()
)
# pylint: disable=protected-access
assert surface._find_label_border_segments(precentral_label)
surface.triangles.append(
Triangle(
[
surface.add_vertex(Vertex(0.0, 21.0 * factor, 42.0 * factor))
for factor in range(3)
]
)
)
border_segments = set(surface._find_label_border_segments(precentral_label))
assert len(border_segments) == 417
def test_find_label_border_polygonal_chains():
surface = Surface.read_triangular(SURFACE_FILE_PATH)
surface.load_annotation_file(ANNOTATION_FILE_PATH)
(precentral_label,) = filter(
lambda l: l.name == "precentral", surface.annotation.labels.values()
)
(border_chain,) = surface.find_label_border_polygonal_chains(precentral_label)
vertex_indices = list(border_chain.vertex_indices)
assert len(vertex_indices) == 418
min_index = vertex_indices.index(min(vertex_indices))
vertex_indices_normalized = vertex_indices[min_index:] + vertex_indices[:min_index]
assert vertex_indices_normalized[:4] == [32065, 32072, 32073, 32080]
assert vertex_indices_normalized[-4:] == [36281, 34870, 33454, 33450]
def test__unused_vertices():
surface = Surface()
assert not surface._unused_vertices()
for i in range(4):
surface.add_vertex(Vertex(i, i, i))
assert surface._unused_vertices() == {0, 1, 2, 3}
surface.triangles.append(Triangle((0, 2, 3)))
assert surface._unused_vertices() == {1}
surface.triangles.append(Triangle((0, 3, 1)))
assert not surface._unused_vertices()
del surface.triangles[0]
assert surface._unused_vertices() == {2}
def test__unused_vertices_real():
surface = Surface.read_triangular(SURFACE_FILE_PATH)
assert not surface._unused_vertices()
surface.triangles = list(
filter(lambda t: 42 not in t.vertex_indices, surface.triangles)
)
assert surface._unused_vertices() == {42}
def test_remove_unused_vertices_all():
surface = Surface()
for i in range(5):
surface.add_vertex(Vertex(i, i, i))
assert len(surface.vertices) == 5
surface.remove_unused_vertices()
assert not surface.vertices
surface.remove_unused_vertices()
assert not surface.vertices
def test_remove_unused_vertices_almost_all():
surface = Surface()
for i in range(5):
surface.add_vertex(Vertex(i, i, i))
assert len(surface.vertices) == 5
surface.triangles.append(Triangle((0, 2, 3)))
surface.remove_unused_vertices()
assert len(surface.vertices) == 3
assert surface.vertices[0] == pytest.approx(Vertex(0, 0, 0))
assert surface.vertices[1] == pytest.approx(Vertex(2, 2, 2))
assert surface.vertices[2] == pytest.approx(Vertex(3, 3, 3))
assert len(surface.triangles) == 1
assert surface.triangles[0] == Triangle((0, 1, 2))
del surface.triangles[0]
surface.remove_unused_vertices()
assert not surface.vertices
def test_remove_unused_vertices_some():
surface = Surface()
for i in range(9):
surface.add_vertex(Vertex(i, i, i))
surface.triangles.append(Triangle((0, 2, 3)))
surface.triangles.append(Triangle((3, 4, 5)))
surface.triangles.append(Triangle((3, 2, 5)))
surface.triangles.append(Triangle((3, 2, 8)))
surface.remove_unused_vertices()
assert len(surface.vertices) == 6
assert surface.vertices[0] == pytest.approx(Vertex(0, 0, 0))
assert surface.vertices[1] == pytest.approx(Vertex(2, 2, 2))
assert surface.vertices[2] == pytest.approx(Vertex(3, 3, 3))
assert surface.vertices[3] == pytest.approx(Vertex(4, 4, 4))
assert surface.vertices[4] == pytest.approx(Vertex(5, 5, 5))
assert surface.vertices[5] == pytest.approx(Vertex(8, 8, 8))
assert len(surface.triangles) == 4
assert surface.triangles[0] == Triangle((0, 1, 2))
assert surface.triangles[1] == Triangle((2, 3, 4))
assert surface.triangles[2] == Triangle((2, 1, 4))
assert surface.triangles[3] == Triangle((2, 1, 5))
surface.remove_unused_vertices()
assert len(surface.triangles) == 4
def test_remove_unused_vertices_none():
surface = Surface.read_triangular(SURFACE_FILE_PATH)
assert len(surface.vertices) == 155622
assert len(surface.triangles) == 311240
surface.remove_unused_vertices()
assert len(surface.vertices) == 155622
assert len(surface.triangles) == 311240
def test_remove_unused_vertices_single():
surface = Surface.read_triangular(SURFACE_FILE_PATH)
assert len(surface.vertices) == 155622
assert len(surface.triangles) == 311240
assert surface.triangles[-1] == Triangle((136143, 138007, 137078))
surface.triangles = list(
filter(lambda t: 42 not in t.vertex_indices, surface.triangles)
)
assert surface._unused_vertices() == {42}
surface.remove_unused_vertices()
assert len(surface.vertices) == 155622 - 1
assert len(surface.triangles) == 311240 - 7
assert surface.triangles[-1] == Triangle((136142, 138006, 137077))
assert all(
vertex_index < len(surface.vertices)
for triangle in surface.triangles
for vertex_index in triangle.vertex_indices
)
def test_select_vertices():
surface = Surface()
for i in range(4):
surface.add_vertex(Vertex(i, i, i))
assert numpy.allclose(
surface.select_vertices([2, 1]), [surface.vertices[2], surface.vertices[1]]
)
assert numpy.allclose(
surface.select_vertices([3, 2]), [surface.vertices[3], surface.vertices[2]]
)
assert numpy.allclose(surface.select_vertices((3, 2)), [[3, 3, 3], [2, 2, 2]])
assert numpy.allclose(
surface.select_vertices(filter(lambda i: i % 2 == 1, range(4))),
[[1, 1, 1], [3, 3, 3]],
)
def test_unite_2():
surface_a = Surface()
for i in range(0, 4):
surface_a.add_vertex(Vertex(i, i, i))
surface_a.triangles.append(Triangle((0, 1, 2)))
surface_a.triangles.append(Triangle((1, 2, 3)))
surface_b = Surface()
for i in range(10, 14):
surface_b.add_vertex(Vertex(i, i, i))
surface_b.triangles.append(Triangle((0, 1, 3)))
surface_a_copy = copy.deepcopy(surface_a)
surface_b_copy = copy.deepcopy(surface_b)
union = Surface.unite([surface_a, surface_b])
assert numpy.allclose(surface_a.vertices, surface_a_copy.vertices)
assert numpy.allclose(surface_b.vertices, surface_b_copy.vertices)
assert numpy.allclose(union.vertices[:4], surface_a.vertices)
assert numpy.allclose(union.vertices[4:], surface_b.vertices)
assert surface_a.triangles == surface_a_copy.triangles
assert surface_b.triangles == surface_b_copy.triangles
assert union.triangles[:2] == surface_a.triangles
assert union.triangles[2:] == [Triangle((4, 5, 7))]
def test_unite_3():
surface_a = Surface()
for i in range(0, 4):
surface_a.add_vertex(Vertex(i, i, i))
surface_a.triangles.append(Triangle((0, 1, 2)))
surface_a.triangles.append(Triangle((1, 2, 3)))
surface_b = Surface()
for i in range(10, 14):
surface_b.add_vertex(Vertex(i, i, i))
surface_b.triangles.append(Triangle((0, 1, 3)))
surface_c = Surface()
for i in range(20, 23):
surface_c.add_vertex(Vertex(i, i, i))
surface_c.triangles.append(Triangle((0, 1, 2)))
surface_c.triangles.append(Triangle((0, 1, 2)))
union = Surface.unite(filter(None, [surface_a, surface_b, surface_c]))
assert numpy.allclose(union.vertices[:4], surface_a.vertices)
assert numpy.allclose(union.vertices[4:8], surface_b.vertices)
assert numpy.allclose(union.vertices[8:], surface_c.vertices)
assert union.triangles[:2] == surface_a.triangles
assert union.triangles[2:3] == [Triangle((4, 5, 7))]
assert union.triangles[3:] == [Triangle((8, 9, 10)), Triangle((8, 9, 10))]
def test_unite_real():
surface_a = Surface.read_triangular(SURFACE_FILE_PATH)
surface_b = Surface()
for i in range(5):
surface_b.add_vertex(Vertex(i, i, i))
surface_b.triangles.append(Triangle((0, 1, 3)))
surface_b.triangles.append(Triangle((1, 3, 4)))
union = Surface.unite((surface_a, surface_b))
assert numpy.allclose(union.vertices[:-5], surface_a.vertices)
assert numpy.allclose(union.vertices[-5:], surface_b.vertices)
assert union.triangles[:-2] == surface_a.triangles
assert union.triangles[-2:] == [
Triangle((155622, 155623, 155625)),
Triangle((155623, 155625, 155626)),
]
assert union.creator == surface_a.creator
assert union.creation_datetime == surface_a.creation_datetime
assert union.using_old_real_ras == surface_a.using_old_real_ras
assert union.volume_geometry_info == surface_a.volume_geometry_info
assert union.command_lines == surface_a.command_lines
assert union.annotation == surface_a.annotation