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"""Test MultiPolygon."""
from pygeoif import geometry
def test_geoms() -> None:
polys = geometry.MultiPolygon(
[
(
((0.0, 0.0), (0.0, 1.0), (1.0, 1.0), (1.0, 0.0)),
[((0.25, 0.25), (0.25, 0.5), (0.5, 0.5), (0.5, 0.25))],
),
],
)
for poly in polys.geoms:
assert type(poly) is geometry.Polygon
def test_len() -> None:
polys = geometry.MultiPolygon(
[
(
((0.0, 0.0), (0.0, 1.0), (1.0, 1.0), (1.0, 0.0)),
[((0.1, 0.1), (0.1, 0.2), (0.2, 0.2), (0.2, 0.1))],
),
(((0.0, 0.0), (0.0, 1.0), (1.0, 1.0), (1.0, 0.0)),),
],
)
assert len(polys) == 2
def test_geo_interface() -> None:
polys = geometry.MultiPolygon(
[
(
((0.0, 0.0), (0.0, 1.0), (1.0, 1.0), (1.0, 0.0)),
[((0.1, 0.1), (0.1, 0.2), (0.2, 0.2), (0.2, 0.1))],
),
],
)
assert polys.__geo_interface__ == {
"type": "MultiPolygon",
"bbox": (0.0, 0.0, 1.0, 1.0),
"coordinates": (
(
((0.0, 0.0), (0.0, 1.0), (1.0, 1.0), (1.0, 0.0), (0.0, 0.0)),
((0.1, 0.1), (0.1, 0.2), (0.2, 0.2), (0.2, 0.1), (0.1, 0.1)),
),
),
}
def test_from_dict() -> None:
polys = geometry.MultiPolygon._from_dict(
{
"type": "MultiPolygon",
"bbox": (0.0, 0.0, 1.0, 1.0),
"coordinates": (
(
((0.0, 0.0), (0.0, 1.0), (1.0, 1.0), (1.0, 0.0), (0.0, 0.0)),
((0.1, 0.1), (0.1, 0.2), (0.2, 0.2), (0.2, 0.1), (0.1, 0.1)),
),
),
},
)
assert polys.__geo_interface__ == {
"type": "MultiPolygon",
"bbox": (0.0, 0.0, 1.0, 1.0),
"coordinates": (
(
((0.0, 0.0), (0.0, 1.0), (1.0, 1.0), (1.0, 0.0), (0.0, 0.0)),
((0.1, 0.1), (0.1, 0.2), (0.2, 0.2), (0.2, 0.1), (0.1, 0.1)),
),
),
}
def test_wkt() -> None:
polys = geometry.MultiPolygon(
[
(
((0.0, 0.0), (0.0, 1.0), (1.0, 1.0), (1.0, 0.0)),
[((0.1, 0.1), (0.1, 0.2), (0.2, 0.2), (0.2, 0.1))],
),
(((0.0, 0.0), (0.0, 1.0), (1.0, 1.0), (1.0, 0.0)),),
],
)
assert polys.wkt == (
"MULTIPOLYGON (((0.0 0.0, 0.0 1.0, 1.0 1.0, 1.0 0.0, 0.0 0.0),"
"(0.1 0.1, 0.1 0.2, 0.2 0.2, 0.2 0.1, 0.1 0.1)),"
"((0.0 0.0, 0.0 1.0, 1.0 1.0, 1.0 0.0, 0.0 0.0)))"
)
def test_repr() -> None:
polys = geometry.MultiPolygon(
[
(
((0.0, 0.0), (0.0, 1.0), (1.0, 1.0), (1.0, 0.0)),
[((0.1, 0.1), (0.1, 0.2), (0.2, 0.2), (0.2, 0.1))],
),
(((0.0, 0.0), (0.0, 1.0), (1.0, 1.0), (1.0, 0.0)),),
],
)
assert repr(polys) == (
"MultiPolygon(((((0.0, 0.0), (0.0, 1.0), (1.0, 1.0), (1.0, 0.0), (0.0, 0.0)), "
"(((0.1, 0.1), (0.1, 0.2), (0.2, 0.2), (0.2, 0.1), (0.1, 0.1)),)), "
"(((0.0, 0.0), (0.0, 1.0), (1.0, 1.0), (1.0, 0.0), (0.0, 0.0)),)))"
)
def test_repr_eval() -> None:
polys = geometry.MultiPolygon(
[
(
((0.0, 0.0), (0.0, 1.0), (1.0, 1.0), (1.0, 0.0)),
[((0.1, 0.1), (0.1, 0.2), (0.2, 0.2), (0.2, 0.1))],
),
(((0.0, 0.0), (0.0, 1.0), (1.0, 1.0), (1.0, 0.0)),),
],
)
assert (
eval(
repr(polys),
{},
{"MultiPolygon": geometry.MultiPolygon},
).__geo_interface__
== polys.__geo_interface__
)
def test_convex_hull() -> None:
polys = geometry.MultiPolygon(
[
(
((0.0, 0.0), (0.0, 1.0), (0.0, 0.0)),
[((0.1, 0.1), (0.1, 0.2), (0.2, 0.2), (0.2, 0.1))],
),
(((0.0, 0.0), (0.0, 2.0), (0, 0)),),
],
)
assert polys.convex_hull == geometry.LineString([(0.0, 0.0), (0.0, 2.0)])
def test_convex_hull_3d() -> None:
polys = geometry.MultiPolygon(
[
(((0, 0, 1), (1, 1, 2), (0, 0, 1)),),
(((0, 0, 3), (2, 2, 4), (0, 0, 3)),),
],
)
assert polys.convex_hull == geometry.LineString([(0, 0), (2, 2)])
def test_convex_hull_3d_collapsed_to_point() -> None:
polys = geometry.MultiPolygon(
[
(((0, 0, 1), (0, 0, 2), (0, 0, 3)),),
(((0, 0, 3), (0, 0, 4), (0, 0, 5)),),
],
)
assert polys.convex_hull == geometry.Point(0, 0)
def test_convex_hull_linear_ring() -> None:
polys = geometry.MultiPolygon(
[
(((0, 0), (1, 0), (2, 2)),),
(((0, 0), (1, 1), (1, 2)),),
],
)
assert polys.convex_hull == geometry.Polygon(
[(0, 0), (1, 0), (2, 2), (1, 2), (0, 0)],
)
def test_unique() -> None:
polys = geometry.MultiPolygon(
[
(
((0.0, 0.0), (0.0, 1.0), (1.0, 1.0), (1.0, 0.0)),
(((0.1, 0.1), (0.1, 0.2), (0.2, 0.2), (0.2, 0.1)),),
),
(((0, 0), (0, 1), (1, 1), (1, 0)),),
(
((0, 0), (0, 1), (1, 1), (1, 0)),
(((0.1, 0.1), (0.1, 0.2), (0.2, 0.2), (0.2, 0.1)),),
),
(((0.0, 0.0), (0.0, 1.0), (1.0, 1.0), (1.0, 0.0)),),
],
unique=True,
)
assert len(polys) == 2
def test_from_polygons() -> None:
e1 = [(0, 0), (0, 2), (2, 2), (2, 0), (0, 0)]
i1 = [(1, 0), (0.5, 0.5), (1, 1), (1.5, 0.5), (1, 0)]
i2 = [(1, 0), (0.5, 0.5), (1, 1), (1.5, 0.5), (1, 0)]
polygon1 = geometry.Polygon(e1, [i1, i2])
polygon2 = geometry.Polygon([(0, 0, 0), (1, 1, 0), (1, 0, 0), (0, 0, 0)])
e = [(0, 0), (0, 2), (2, 2), (2, 0), (0, 0)]
i = [(1, 0), (0.5, 0.5), (1, 1), (1.5, 0.5), (1, 0)]
polygon3 = geometry.Polygon(e, [i])
polys = geometry.MultiPolygon.from_polygons(polygon1, polygon2, polygon3)
assert polys == geometry.MultiPolygon(
(
(
((0, 0), (0, 2), (2, 2), (2, 0), (0, 0)),
(
((1, 0), (0.5, 0.5), (1, 1), (1.5, 0.5), (1, 0)),
((1, 0), (0.5, 0.5), (1, 1), (1.5, 0.5), (1, 0)),
),
),
(((0, 0, 0), (1, 1, 0), (1, 0, 0), (0, 0, 0)),),
(
((0, 0), (0, 2), (2, 2), (2, 0), (0, 0)),
(((1, 0), (0.5, 0.5), (1, 1), (1.5, 0.5), (1, 0)),),
),
),
)
def test_from_polygons_unique() -> None:
e1 = [(0, 0), (0, 2), (2, 2), (2, 0), (0, 0)]
i1 = [(1, 0), (0.5, 0.5), (1, 1), (1.5, 0.5), (1, 0)]
i2 = [(1, 0), (0.5, 0.5), (1, 1), (1.5, 0.5), (1, 0)]
polygon1 = geometry.Polygon(e1, [i1, i2])
polygon2 = geometry.Polygon([(0, 0, 0), (1, 1, 0), (1, 0, 0), (0, 0, 0)])
e = [(0, 0), (0, 2), (2, 2), (2, 0), (0, 0)]
i = [(1, 0), (0.5, 0.5), (1, 1), (1.5, 0.5), (1, 0)]
polygon3 = geometry.Polygon(e, [i])
polys = geometry.MultiPolygon.from_polygons(
polygon1,
polygon2,
polygon3,
unique=True,
)
polys2 = geometry.MultiPolygon.from_polygons(
polygon1,
polygon2,
polygon3,
polygon1,
polygon2,
polygon3,
unique=True,
)
assert polys == polys2
def test_is_empty() -> None:
polys = geometry.MultiPolygon([])
assert polys.is_empty
def test_empty_wkt() -> None:
polys = geometry.MultiPolygon([])
assert polys.wkt == "MULTIPOLYGON EMPTY"
def test_repr_empty() -> None:
polys = geometry.MultiPolygon([])
assert repr(polys) == "MultiPolygon(())"
def test_empty_bounds() -> None:
polys = geometry.MultiPolygon([])
assert polys.bounds == ()
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