Exemplo n.º 1
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def test_tests():
    box1 = geometry.box(10, 10, 30, 30, crs=epsg4326)
    box2 = geometry.box(20, 10, 40, 30, crs=epsg4326)
    box3 = geometry.box(30, 10, 50, 30, crs=epsg4326)
    box4 = geometry.box(40, 10, 60, 30, crs=epsg4326)
    minibox = geometry.box(15, 15, 25, 25, crs=epsg4326)

    assert not box1.touches(box2)
    assert box1.touches(box3)
    assert not box1.touches(box4)

    assert box1.intersects(box2)
    assert box1.intersects(box3)
    assert not box1.intersects(box4)

    assert not box1.crosses(box2)
    assert not box1.crosses(box3)
    assert not box1.crosses(box4)

    assert not box1.disjoint(box2)
    assert not box1.disjoint(box3)
    assert box1.disjoint(box4)

    assert box1.contains(minibox)
    assert not box1.contains(box2)
    assert not box1.contains(box3)
    assert not box1.contains(box4)

    assert minibox.within(box1)
    assert not box1.within(box2)
    assert not box1.within(box3)
    assert not box1.within(box4)
Exemplo n.º 2
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def test_to_crs():
    poly = geometry.polygon([(0, 0), (0, 5), (10, 5)], epsg4326)
    num_points = 3
    assert poly.crs is epsg4326
    assert poly.to_crs(epsg3857).crs is epsg3857
    assert poly.to_crs('EPSG:3857').crs == 'EPSG:3857'
    assert poly.to_crs('EPSG:3857', 0.1).crs == epsg3857

    assert poly.exterior.to_crs(epsg3857) == poly.to_crs(epsg3857).exterior

    # test that by default segmentation happens
    # +1 is because exterior loops back to start point
    assert len(poly.to_crs(epsg3857).exterior.xy[0]) > num_points + 1

    # test that +inf disables segmentation
    # +1 is because exterior loops back to start point
    assert len(poly.to_crs(epsg3857, float('+inf')).exterior.xy[0]) == num_points + 1

    # test the segmentation works on multi-polygons
    mpoly = (geometry.box(0, 0, 1, 3, 'EPSG:4326') |
             geometry.box(2, 4, 3, 6, 'EPSG:4326'))

    assert mpoly.type == 'MultiPolygon'
    assert mpoly.to_crs(epsg3857).type == 'MultiPolygon'

    poly = geometry.polygon([(0, 0), (0, 5), (10, 5)], None)
    assert poly.crs is None
    with pytest.raises(ValueError):
        poly.to_crs(epsg3857)
Exemplo n.º 3
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def test_lonlat_bounds():
    # example from landsat scene: spans lon=180
    poly = geometry.box(618300, -1876800, 849000, -1642500, 'EPSG:32660')

    bb = geometry.lonlat_bounds(poly)
    assert bb.left < 180 < bb.right
    assert geometry.lonlat_bounds(poly) == geometry.lonlat_bounds(poly, resolution=1e+8)

    bb = geometry.lonlat_bounds(poly, mode='quick')
    assert bb.right - bb.left > 180

    poly = geometry.box(1, -10, 2, 20, 'EPSG:4326')
    assert geometry.lonlat_bounds(poly) == poly.boundingbox

    with pytest.raises(ValueError):
        geometry.lonlat_bounds(geometry.box(0, 0, 1, 1, None))

    multi = {
        "type": "MultiPolygon",
        "coordinates": [
            [[[174, 52], [174, 53], [175, 53], [174, 52]]],
            [[[168, 54], [167, 55], [167, 54], [168, 54]]]
        ]
    }

    multi_geom = geometry.Geometry(multi, "epsg:4326")
    multi_geom_projected = multi_geom.to_crs('epsg:32659', math.inf)

    ll_bounds = geometry.lonlat_bounds(multi_geom)
    ll_bounds_projected = geometry.lonlat_bounds(multi_geom_projected)

    assert ll_bounds == approx(ll_bounds_projected)
Exemplo n.º 4
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def test_unary_union():
    box1 = geometry.box(10, 10, 30, 30, crs=epsg4326)
    box2 = geometry.box(20, 10, 40, 30, crs=epsg4326)
    box3 = geometry.box(30, 10, 50, 30, crs=epsg4326)
    box4 = geometry.box(40, 10, 60, 30, crs=epsg4326)

    union0 = geometry.unary_union([box1])
    assert union0 == box1

    union1 = geometry.unary_union([box1, box4])
    assert union1.type == 'MultiPolygon'
    assert union1.area == 2.0 * box1.area

    union2 = geometry.unary_union([box1, box2])
    assert union2.type == 'Polygon'
    assert union2.area == 1.5 * box1.area

    union3 = geometry.unary_union([box1, box2, box3, box4])
    assert union3.type == 'Polygon'
    assert union3.area == 2.5 * box1.area

    union4 = geometry.unary_union([union1, box2, box3])
    assert union4.type == 'Polygon'
    assert union4.area == 2.5 * box1.area

    assert geometry.unary_union([]) is None

    with pytest.raises(ValueError):
        pt = geometry.point(6, 7, epsg4326)
        geometry.unary_union([pt, pt])
Exemplo n.º 5
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def test_chop():
    poly = geometry.box(618300, -1876800, 849000, -1642500, 'EPSG:32660')

    chopped = chop_along_antimeridian(poly)
    assert chopped.crs is poly.crs
    assert chopped.type == 'MultiPolygon'
    assert len([g for g in chopped]) == 2

    poly = geometry.box(0, 0, 10, 20, 'EPSG:4326')._to_crs(epsg3857)
    assert poly.crs is epsg3857
    assert chop_along_antimeridian(poly) is poly

    with pytest.raises(ValueError):
        chop_along_antimeridian(geometry.box(0, 1, 2, 3, None))
Exemplo n.º 6
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def create_grid_mapping_variable(nco, crs, name=DEFAULT_GRID_MAPPING):
    if crs.geographic:
        crs_var = _create_latlon_grid_mapping_variable(nco, crs, name)
    elif crs.projected:
        crs_var = _create_projected_grid_mapping_variable(nco, crs, name)
    else:
        raise ValueError('Unknown CRS')

    # mark crs variable as a coordinate
    coords = getattr(nco, 'coordinates', None)
    coords = [] if coords is None else coords.split(',')
    if name not in coords:
        coords.append(name)
    nco.coordinates = ','.join(coords)

    crs_var.semi_major_axis = crs.semi_major_axis
    crs_var.semi_minor_axis = crs.semi_minor_axis
    crs_var.inverse_flattening = crs.inverse_flattening
    crs_var.crs_wkt = crs.wkt

    crs_var.spatial_ref = crs.wkt

    dims = crs.dimensions
    xres, xoff = data_resolution_and_offset(nco[dims[1]])
    yres, yoff = data_resolution_and_offset(nco[dims[0]])
    crs_var.GeoTransform = [xoff, xres, 0.0, yoff, 0.0, yres]

    left, right = nco[dims[1]][0] - 0.5 * xres, nco[dims[1]][-1] + 0.5 * xres
    bottom, top = nco[dims[0]][0] - 0.5 * yres, nco[dims[0]][-1] + 0.5 * yres
    _write_geographical_extents_attributes(
        nco, geometry.box(left, bottom, right, top, crs=crs))

    return crs_var
Exemplo n.º 7
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def test_geom_clone():
    b = geometry.box(0, 0, 10, 20, epsg4326)
    assert b == b.clone()
    assert b.geom is not b.clone().geom

    assert b == geometry.Geometry(b)
    assert b.geom is not geometry.Geometry(b).geom
Exemplo n.º 8
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def test_lonalt_bounds_more_than_180():
    poly = geometry.box(-150, -30, 150, 30,
                        epsg4326).to_crs(epsg3857, math.inf)

    assert geometry.lonlat_bounds(poly, "quick") == approx(
        (-150, -30, 150, 30))
    assert geometry.lonlat_bounds(poly, "safe") == approx((-150, -30, 150, 30))
Exemplo n.º 9
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def create_grid_mapping_variable(nco, crs):
    if crs.geographic:
        crs_var = _create_latlon_grid_mapping_variable(nco, crs)
    elif crs.projected:
        crs_var = _create_projected_grid_mapping_variable(nco, crs)
    else:
        raise ValueError('Unknown CRS')
    crs_var.semi_major_axis = crs.semi_major_axis
    crs_var.semi_minor_axis = crs.semi_minor_axis
    crs_var.inverse_flattening = crs.inverse_flattening
    crs_var.crs_wkt = crs.wkt

    crs_var.spatial_ref = crs.wkt

    dims = crs.dimensions
    xres, xoff = data_resolution_and_offset(nco[dims[1]])
    yres, yoff = data_resolution_and_offset(nco[dims[0]])
    crs_var.GeoTransform = [xoff, xres, 0.0, yoff, 0.0, yres]

    left, right = nco[dims[1]][0] - 0.5 * xres, nco[dims[1]][-1] + 0.5 * xres
    bottom, top = nco[dims[0]][0] - 0.5 * yres, nco[dims[0]][-1] + 0.5 * yres
    _write_geographical_extents_attributes(
        nco, geometry.box(left, bottom, right, top, crs=crs))

    return crs_var
Exemplo n.º 10
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def to_lat_long_extent(left,
                       bottom,
                       right,
                       top,
                       spatial_reference,
                       new_crs="EPSG:4326"):

    crs = CRS(spatial_reference)
    abox = box(left, bottom, right, top, crs)
    projected = abox.to_crs(CRS(new_crs))
    proj = projected.boundingbox
    left, bottom, right, top = proj.left, proj.bottom, proj.right, proj.top
    coord = {
        'ul': {
            'lon': left,
            'lat': top
        },
        'ur': {
            'lon': right,
            'lat': top
        },
        'll': {
            'lon': left,
            'lat': bottom
        },
        'lr': {
            'lon': right,
            'lat': bottom
        },
    }
    return coord
Exemplo n.º 11
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def xr_bounds(x, crs=None) -> Tuple[Tuple[float, float],
                                    Tuple[float, float]]:
    from datacube.utils.geometry import box
    from datacube.testutils.geom import epsg4326

    def get_range(a: np.ndarray) -> Tuple[float, float]:
        b = (a[1] - a[0])*0.5
        return a[0]-b, a[-1]+b

    if 'latitude' in x.coords:
        r1, r2 = (get_range(a.values) for a in (x.latitude, x.longitude))
        p1, p2 = ((r1[i], r2[i]) for i in (0, 1))
        return p1, p2

    if crs is None:
        geobox = getattr(x, 'geobox', None)
        if geobox:
            crs = geobox.crs

    if crs is None:
        raise ValueError('Need to supply CRS or use latitude/longitude coords')

    if not all(d in x.coords for d in crs.dimensions):
        raise ValueError('Incompatible CRS supplied')

    (t, b), (l, r) = (get_range(x.coords[dim].values)
                      for dim in crs.dimensions)

    l, b, r, t = box(l, b, r, t, crs).to_crs(epsg4326).boundingbox
    return ((t, r), (b, l))
Exemplo n.º 12
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def test_crs():
    CRS = geometry.CRS
    custom_crs = geometry.CRS("""PROJCS["unnamed",
                           GEOGCS["Unknown datum based upon the custom spheroid",
                           DATUM["Not specified (based on custom spheroid)", SPHEROID["Custom spheroid",6371007.181,0]],
                           PRIMEM["Greenwich",0],UNIT["degree",0.0174532925199433]],
                           PROJECTION["Sinusoidal"],
                           PARAMETER["longitude_of_center",0],
                           PARAMETER["false_easting",0],
                           PARAMETER["false_northing",0],
                           UNIT["Meter",1]]""")

    crs = epsg3577
    assert crs.geographic is False
    assert crs.projected is True
    assert crs.dimensions == ('y', 'x')
    assert crs.epsg == 3577
    assert crs.units == ('metre', 'metre')
    assert isinstance(repr(crs), str)

    crs = epsg4326
    assert crs.geographic is True
    assert crs.projected is False
    assert crs.dimensions == ('latitude', 'longitude')
    assert crs.epsg == 4326

    crs2 = CRS(crs)
    assert crs2 == crs
    assert crs.proj is crs2.proj

    assert epsg4326.valid_region == geometry.box(-180, -90, 180, 90, epsg4326)
    assert epsg3857.valid_region.crs == epsg4326
    xmin, _, xmax, _ = epsg3857.valid_region.boundingbox
    assert (xmin, xmax) == (-180, 180)
    assert custom_crs.valid_region is None

    assert epsg3577 == epsg3577
    assert epsg3577 == 'EPSG:3577'
    assert (epsg3577 != epsg3577) is False
    assert (epsg3577 == epsg4326) is False
    assert (epsg3577 == 'EPSG:4326') is False
    assert epsg3577 != epsg4326
    assert epsg3577 != 'EPSG:4326'

    bad_crs = [
        'cupcakes',
        ('PROJCS["unnamed",'
         'GEOGCS["WGS 84", DATUM["WGS_1984", SPHEROID["WGS 84",6378137,298.257223563, AUTHORITY["EPSG","7030"]],'
         'AUTHORITY["EPSG","6326"]], PRIMEM["Greenwich",0, AUTHORITY["EPSG","8901"]],'
         'UNIT["degree",0.0174532925199433, AUTHORITY["EPSG","9122"]], AUTHORITY["EPSG","4326"]]]'
         )
    ]

    for bad in bad_crs:
        with pytest.raises(geometry.CRSError):
            CRS(bad)

    with pytest.warns(DeprecationWarning):
        assert str(epsg3857) == epsg3857.crs_str
Exemplo n.º 13
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 def make_fake_datasets(num_datasets):
     start_time = datetime.datetime(2001, 2, 15)
     delta = datetime.timedelta(days=16)
     for i in range(num_datasets):
         fakedataset = MagicMock()
         fakedataset.extent = geometry.box(left=grid, bottom=-grid, right=2*grid, top=-2*grid, crs=fakecrs)
         fakedataset.center_time = start_time + (delta * i)
         yield fakedataset
Exemplo n.º 14
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def test_props():
    crs = epsg4326

    box1 = geometry.box(10, 10, 30, 30, crs=crs)
    assert box1
    assert box1.is_valid
    assert not box1.is_empty
    assert box1.area == 400.0
    assert box1.boundary.length == 80.0
    assert box1.centroid == geometry.point(20, 20, crs)

    triangle = geometry.polygon([(10, 20), (20, 20), (20, 10), (10, 20)],
                                crs=crs)
    assert triangle.boundingbox == geometry.BoundingBox(10, 10, 20, 20)
    assert triangle.envelope.contains(triangle)

    assert box1.length == 80.0

    box1copy = geometry.box(10, 10, 30, 30, crs=crs)
    assert box1 == box1copy
    assert box1.convex_hull == box1copy  # NOTE: this might fail because of point order

    box2 = geometry.box(20, 10, 40, 30, crs=crs)
    assert box1 != box2

    bbox = geometry.BoundingBox(1, 0, 10, 13)
    assert bbox.width == 9
    assert bbox.height == 13
    assert bbox.points == [(1, 0), (1, 13), (10, 0), (10, 13)]

    assert bbox.transform(Affine.identity()) == bbox
    assert bbox.transform(Affine.translation(1, 2)) == geometry.BoundingBox(
        2, 2, 11, 15)

    pt = geometry.point(3, 4, crs)
    assert pt.json['coordinates'] == (3.0, 4.0)
    assert 'Point' in str(pt)
    assert bool(pt) is True
    assert pt.__nonzero__() is True

    # check "CRS as string is converted to class automatically"
    assert isinstance(geometry.point(3, 4, 'epsg:3857').crs, geometry.CRS)

    # constructor with bad input should raise ValueError
    with pytest.raises(ValueError):
        geometry.Geometry(object())
Exemplo n.º 15
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def test_lonlat_bounds():
    # example from landsat scene: spans lon=180
    poly = geometry.box(618300, -1876800, 849000, -1642500, 'EPSG:32660')

    bb = geometry.lonlat_bounds(poly)
    assert bb.left < 180 < bb.right
    assert geometry.lonlat_bounds(poly) == geometry.lonlat_bounds(
        poly, resolution=1e+8)

    bb = geometry.lonlat_bounds(poly, mode='quick')
    assert bb.right - bb.left > 180

    poly = geometry.box(1, -10, 2, 20, 'EPSG:4326')
    assert geometry.lonlat_bounds(poly) == poly.boundingbox

    with pytest.raises(ValueError):
        geometry.lonlat_bounds(geometry.box(0, 0, 1, 1, None))
Exemplo n.º 16
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def test_wrap_dateline_utm():
    poly = geometry.box(618300, -1876800, 849000, -1642500, 'EPSG:32660')

    wrapped = poly.to_crs(epsg4326)
    assert wrapped.type == 'Polygon'
    assert wrapped.intersects(geometry.line([(0, -90), (0, 90)], crs=epsg4326))
    wrapped = poly.to_crs(epsg4326, wrapdateline=True)
    assert wrapped.type == 'MultiPolygon'
    assert not wrapped.intersects(
        geometry.line([(0, -90), (0, 90)], crs=epsg4326))
Exemplo n.º 17
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def test_geom_split():
    box = geometry.box(0, 0, 10, 30, epsg4326)
    line = geometry.line([(5, 0), (5, 30)], epsg4326)
    bb = list(box.split(line))
    assert len(bb) == 2
    assert box.contains(bb[0] | bb[1])
    assert (box ^ (bb[0] | bb[1])).is_empty

    with pytest.raises(CRSMismatchError):
        list(box.split(geometry.line([(5, 0), (5, 30)], epsg3857)))
Exemplo n.º 18
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def test_ops():
    box1 = geometry.box(10, 10, 30, 30, crs=epsg4326)
    box2 = geometry.box(20, 10, 40, 30, crs=epsg4326)
    box3 = geometry.box(20, 10, 40, 30, crs=epsg4326)
    box4 = geometry.box(40, 10, 60, 30, crs=epsg4326)
    no_box = None

    assert box1 != box2
    assert box2 == box3
    assert box3 != no_box

    union1 = box1.union(box2)
    assert union1.area == 600.0

    inter1 = box1.intersection(box2)
    assert bool(inter1)
    assert inter1.area == 200.0

    inter2 = box1.intersection(box4)
    assert not bool(inter2)
    assert inter2.is_empty
    # assert not inter2.is_valid  TODO: what's going on here?

    diff1 = box1.difference(box2)
    assert diff1.area == 200.0

    symdiff1 = box1.symmetric_difference(box2)
    assert symdiff1.area == 400.0

    # test segmented
    line = geometry.line([(0, 0), (0, 5), (10, 5)], epsg4326)
    line2 = line.segmented(2)
    assert line.crs is line2.crs
    assert line.length == line2.length
    assert len(line.coords) < len(line2.coords)

    # test interpolate
    pt = line.interpolate(1)
    assert pt.crs is line.crs
    assert pt.coords[0] == (0, 1)

    assert pt.interpolate(3) is None
Exemplo n.º 19
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def test_multigeom():
    p1, p2 = (0, 0), (1, 2)
    p3, p4 = (3, 4), (5, 6)
    b1 = geometry.box(*p1, *p2, epsg4326)
    b2 = geometry.box(*p3, *p4, epsg4326)
    bb = multigeom([b1, b2])
    assert bb.type == 'MultiPolygon'
    assert bb.crs is b1.crs
    assert len(list(bb)) == 2

    g1 = geometry.line([p1, p2], None)
    g2 = geometry.line([p3, p4], None)
    gg = multigeom(iter([g1, g2, g1]))
    assert gg.type == 'MultiLineString'
    assert gg.crs is g1.crs
    assert len(list(gg)) == 3

    g1 = geometry.point(*p1, epsg3857)
    g2 = geometry.point(*p2, epsg3857)
    g3 = geometry.point(*p3, epsg3857)
    gg = multigeom(iter([g1, g2, g3]))
    assert gg.type == 'MultiPoint'
    assert gg.crs is g1.crs
    assert len(list(gg)) == 3
    assert list(gg)[0] == g1
    assert list(gg)[1] == g2
    assert list(gg)[2] == g3

    # can't mix types
    with pytest.raises(ValueError):
        multigeom([geometry.line([p1, p2], None), geometry.point(*p1, None)])

    # can't mix CRSs
    with pytest.raises(CRSMismatchError):
        multigeom([
            geometry.line([p1, p2], epsg4326),
            geometry.line([p3, p4], epsg3857)
        ])

    # only some types are supported on input
    with pytest.raises(ValueError):
        multigeom([gg])
Exemplo n.º 20
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def test_extent_and_spatial():
    cfg = get_config()
    lyr = list(cfg.product_index.values())[0]
    layer_ext_bbx = (
        lyr.bboxes["EPSG:4326"]["left"],
        lyr.bboxes["EPSG:4326"]["bottom"],
        lyr.bboxes["EPSG:4326"]["right"],
        lyr.bboxes["EPSG:4326"]["top"],
    )
    small_bbox = pytest.helpers.enclosed_bbox(layer_ext_bbx)
    layer_ext_geom = box(
        layer_ext_bbx[0],
        layer_ext_bbx[1],
        layer_ext_bbx[2],
        layer_ext_bbx[3],
        "EPSG:4326",
    )
    small_geom = box(small_bbox[0], small_bbox[1], small_bbox[2],
                     small_bbox[3], "EPSG:4326")
    with cube() as dc:
        all_ext = mv_search_datasets(dc.index,
                                     MVSelectOpts.EXTENT,
                                     geom=layer_ext_geom,
                                     layer=lyr)
        small_ext = mv_search_datasets(dc.index,
                                       MVSelectOpts.EXTENT,
                                       geom=small_geom,
                                       layer=lyr)
        assert layer_ext_geom.contains(all_ext)
        assert small_geom.contains(small_ext)
        assert all_ext.contains(small_ext)
        assert small_ext.area < all_ext.area

        all_count = mv_search_datasets(dc.index,
                                       MVSelectOpts.COUNT,
                                       geom=layer_ext_geom,
                                       layer=lyr)
        small_count = mv_search_datasets(dc.index,
                                         MVSelectOpts.COUNT,
                                         geom=small_geom,
                                         layer=lyr)
        assert small_count <= all_count
Exemplo n.º 21
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 def __init__(self,
              resolution: Tuple[int, int] = (-20, 20),
              crs: str = "epsg:6933"):
     target_crs = CRS(crs)
     self.albers_africa_N = GridSpec(
         crs=target_crs,
         tile_size=(96_000.0, 96_000.0),  # default
         resolution=resolution,
     )
     africa = box(-18, -38, 60, 30, "epsg:4326")
     self.africa_projected = africa.to_crs(crs, resolution=math.inf)
Exemplo n.º 22
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def test_props():
    box1 = geometry.box(10, 10, 30, 30, crs=geometry.CRS('EPSG:4326'))
    assert box1
    assert box1.is_valid
    assert not box1.is_empty
    assert box1.area == 400.0
    assert box1.boundary.length == 80.0
    assert box1.centroid == geometry.point(20, 20, geometry.CRS('EPSG:4326'))

    triangle = geometry.polygon([(10, 20), (20, 20), (20, 10), (10, 20)], crs=geometry.CRS('EPSG:4326'))
    assert triangle.envelope == geometry.BoundingBox(10, 10, 20, 20)

    outer = next(iter(box1))
    assert outer.length == 80.0

    box1copy = geometry.box(10, 10, 30, 30, crs=geometry.CRS('EPSG:4326'))
    assert box1 == box1copy
    assert box1.convex_hull == box1copy  # NOTE: this might fail because of point order

    box2 = geometry.box(20, 10, 40, 30, crs=geometry.CRS('EPSG:4326'))
    assert box1 != box2
Exemplo n.º 23
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def test_unary_intersection():
    box1 = geometry.box(10, 10, 30, 30, crs=geometry.CRS('EPSG:4326'))
    box2 = geometry.box(15, 10, 35, 30, crs=geometry.CRS('EPSG:4326'))
    box3 = geometry.box(20, 10, 40, 30, crs=geometry.CRS('EPSG:4326'))
    box4 = geometry.box(25, 10, 45, 30, crs=geometry.CRS('EPSG:4326'))
    box5 = geometry.box(30, 10, 50, 30, crs=geometry.CRS('EPSG:4326'))
    box6 = geometry.box(35, 10, 55, 30, crs=geometry.CRS('EPSG:4326'))

    inter1 = geometry.unary_intersection([box1])
    assert bool(inter1)
    assert inter1 == box1

    inter2 = geometry.unary_intersection([box1, box2])
    assert bool(inter2)
    assert inter2.area == 300.0

    inter3 = geometry.unary_intersection([box1, box2, box3])
    assert bool(inter3)
    assert inter3.area == 200.0

    inter4 = geometry.unary_intersection([box1, box2, box3, box4])
    assert bool(inter4)
    assert inter4.area == 100.0

    inter5 = geometry.unary_intersection([box1, box2, box3, box4, box5])
    assert bool(inter5)
    assert inter5.type == 'LineString'
    assert inter5.length == 20.0

    inter6 = geometry.unary_intersection([box1, box2, box3, box4, box5, box6])
    assert not bool(inter6)
    assert inter6.is_empty
Exemplo n.º 24
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def test_ops():
    box1 = geometry.box(10, 10, 30, 30, crs=geometry.CRS('EPSG:4326'))
    box2 = geometry.box(20, 10, 40, 30, crs=geometry.CRS('EPSG:4326'))
    box4 = geometry.box(40, 10, 60, 30, crs=geometry.CRS('EPSG:4326'))

    union1 = box1.union(box2)
    assert union1.area == 600.0

    inter1 = box1.intersection(box2)
    assert bool(inter1)
    assert inter1.area == 200.0

    inter2 = box1.intersection(box4)
    assert not bool(inter2)
    assert inter2.is_empty
    # assert not inter2.is_valid  TODO: what's going on here?

    diff1 = box1.difference(box2)
    assert diff1.area == 200.0

    symdiff1 = box1.symmetric_difference(box2)
    assert symdiff1.area == 400.0
Exemplo n.º 25
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def test_props():
    crs = epsg4326

    box1 = geometry.box(10, 10, 30, 30, crs=crs)
    assert box1
    assert box1.is_valid
    assert not box1.is_empty
    assert box1.area == 400.0
    assert box1.boundary.length == 80.0
    assert box1.centroid == geometry.point(20, 20, crs)

    triangle = geometry.polygon([(10, 20), (20, 20), (20, 10), (10, 20)],
                                crs=crs)
    assert triangle.envelope == geometry.BoundingBox(10, 10, 20, 20)

    outer = next(iter(box1))
    assert outer.length == 80.0

    box1copy = geometry.box(10, 10, 30, 30, crs=crs)
    assert box1 == box1copy
    assert box1.convex_hull == box1copy  # NOTE: this might fail because of point order

    box2 = geometry.box(20, 10, 40, 30, crs=crs)
    assert box1 != box2

    bbox = geometry.BoundingBox(1, 0, 10, 13)
    assert bbox.width == 9
    assert bbox.height == 13
    assert bbox.points == [(1, 0), (1, 13), (10, 0), (10, 13)]

    assert bbox.transform(Affine.identity()) == bbox
    assert bbox.transform(Affine.translation(1, 2)) == geometry.BoundingBox(
        2, 2, 11, 15)

    pt = geometry.point(3, 4, crs)
    assert pt.json['coordinates'] == (3.0, 4.0)
    assert 'Point' in str(pt)
    assert bool(pt) is True
    assert pt.__nonzero__() is True
Exemplo n.º 26
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def test_mid_lon(lon, lat):
    r = 0.1
    rect = geom.box(lon - r, lat - r, lon + r, lat + r, "epsg:4326")
    assert rect.centroid.coords[0] == pytest.approx((lon, lat))

    assert mid_longitude(rect) == pytest.approx(lon)
    assert mid_longitude(rect.to_crs("epsg:3857")) == pytest.approx(lon)

    offset = solar_offset(rect, "h")
    assert offset.seconds % (60 * 60) == 0

    offset_sec = solar_offset(rect, "s")
    assert abs((offset - offset_sec).seconds) <= 60 * 60
Exemplo n.º 27
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def test_unary_union():
    box1 = geometry.box(10, 10, 30, 30, crs=geometry.CRS('EPSG:4326'))
    box2 = geometry.box(20, 10, 40, 30, crs=geometry.CRS('EPSG:4326'))
    box3 = geometry.box(30, 10, 50, 30, crs=geometry.CRS('EPSG:4326'))
    box4 = geometry.box(40, 10, 60, 30, crs=geometry.CRS('EPSG:4326'))

    union0 = geometry.unary_union([box1])
    assert union0 == box1

    union1 = geometry.unary_union([box1, box4])
    assert union1.type == 'MultiPolygon'
    assert union1.area == 2.0 * box1.area

    union2 = geometry.unary_union([box1, box2])
    assert union2.type == 'Polygon'
    assert union2.area == 1.5 * box1.area

    union3 = geometry.unary_union([box1, box2, box3, box4])
    assert union3.type == 'Polygon'
    assert union3.area == 2.5 * box1.area

    union4 = geometry.unary_union([union1, box2, box3])
    assert union4.type == 'Polygon'
    assert union4.area == 2.5 * box1.area
Exemplo n.º 28
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def test_time_search():
    cfg = get_config()
    lyr = list(cfg.product_index.values())[0]
    time = lyr.ranges["times"][-1]
    geom = box(lyr.bboxes["EPSG:4326"]["bottom"],
               lyr.bboxes["EPSG:4326"]["left"], lyr.bboxes["EPSG:4326"]["top"],
               lyr.bboxes["EPSG:4326"]["right"], "EPSG:4326")

    time_rng = local_solar_date_range(MockGeobox(geom), time)
    with cube() as dc:
        sel = mv_search_datasets(dc.index,
                                 MVSelectOpts.COUNT,
                                 times=[time_rng],
                                 layer=lyr)
        assert sel > 0
Exemplo n.º 29
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 def b_neg(lside):
     return geometry.box(lside, 0, -170, 10, epsg4326)
Exemplo n.º 30
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 def b(rside):
     return geometry.box(170, 0, rside, 10, epsg4326)