def test_mosaic_tiler_with_imageDataClass():
"""Test mosaic tiler."""
img, _ = mosaic.mosaic_reader(assets, _read_tile, xo, yo, zo)
assert not img.assets
assert not img.data
assert not img.mask
img, _ = mosaic.mosaic_reader(assets, _read_tile, x, y, z)
assert img.data.shape == (3, 256, 256)
assert img.mask.shape == (256, 256)
assert img.mask.all()
assert img.data[0][-1][-1] == 8682
assert len(img.assets) == 1
assert img.crs == WEB_MERCATOR_TMS.crs
assert img.bounds == WEB_MERCATOR_TMS.xy_bounds(x, y, z)
img, assets_used = mosaic.mosaic_reader(
assets, _read_tile, x, y, z, pixel_selection=defaults.LowestMethod())
assert assets_used == img.assets == assets
assert img.crs == WEB_MERCATOR_TMS.crs
assert img.bounds == WEB_MERCATOR_TMS.xy_bounds(x, y, z)
img, assets_used = mosaic.mosaic_reader(
assets,
_read_preview,
width=256,
height=256,
pixel_selection=defaults.LowestMethod(),
)
assert img.data.shape == (3, 256, 256)
assert img.mask.shape == (256, 256)
assert assets_used == img.assets == assets
assert not img.crs
assert not img.bounds
bbox = [
-75.98703377413767, 44.93504283293786, -71.337604723999,
47.09685599202324
]
with COGReader(assets[0]) as cog:
crs1 = cog.dataset.crs
with COGReader(assets[0]) as cog:
crs2 = cog.dataset.crs
img, assets_used = mosaic.mosaic_reader(assets,
_read_part,
bbox=bbox,
dst_crs=crs1,
bounds_crs=WGS84_CRS,
max_size=1024)
assert img.data.shape == (3, 690, 1024)
assert img.mask.shape == (690, 1024)
assert img.mask.any()
assert assets_used == img.assets == assets
assert img.crs == crs1 == crs2
assert not img.bounds == bbox
bbox_in_crs = transform_bounds(WGS84_CRS, crs1, *bbox, densify_pts=21)
assert img.bounds == bbox_in_crs
def test_tile_valid_default():
"""Should return a 3 bands array and a full valid mask."""
with COGReader(COG_NODATA) as cog:
# Full tile
img = cog.tile(43, 24, 7)
assert img.data.shape == (1, 256, 256)
assert img.mask.all()
assert img.band_names == ["1"]
# Validate that Tile and Part gives the same result
tile_bounds = WEB_MERCATOR_TMS.xy_bounds(43, 24, 7)
data_part, _ = cog.part(
tile_bounds,
bounds_crs=WEB_MERCATOR_TMS.crs,
width=256,
height=256,
max_size=None,
)
assert numpy.array_equal(img.data, data_part)
# Partial tile
data, mask = cog.tile(42, 24, 7)
assert data.shape == (1, 256, 256)
assert not mask.all()
# Expression
img = cog.tile(43, 24, 7, expression="b1*2,b1-100")
assert img.data.shape == (2, 256, 256)
assert img.band_names == ["b1*2", "b1-100"]
with pytest.warns(ExpressionMixingWarning):
img = cog.tile(43, 24, 7, indexes=(1, 2, 3), expression="b1*2")
assert img.data.shape == (1, 256, 256)
assert img.band_names == ["b1*2"]
data, mask = cog.tile(43, 24, 7, indexes=1)
assert data.shape == (1, 256, 256)
img = cog.tile(
43,
24,
7,
indexes=(
1,
1,
),
)
assert img.data.shape == (2, 256, 256)
assert img.band_names == ["1", "1"]
# We are using a file that is aligned with the grid so no resampling should be involved
with COGReader(COG_WEB) as cog:
img = cog.tile(147, 182, 9)
img_buffer = cog.tile(147, 182, 9, tile_buffer=10)
assert img_buffer.width == 276
assert img_buffer.height == 276
assert not img.bounds == img_buffer.bounds
assert numpy.array_equal(img.data, img_buffer.data[:, 10:266, 10:266])
def test_aligned_with_internaltile():
"""Check if COG is in WebMercator and aligned with internal tiles."""
bounds = WEB_MERCATOR_TMS.bounds(43, 25, 7)
with rasterio.open(COG_DST) as src_dst:
assert not utils._requested_tile_aligned_with_internal_tile(
src_dst, bounds, 256, 256)
with rasterio.open(NOCOG) as src_dst:
assert not utils._requested_tile_aligned_with_internal_tile(
src_dst, bounds, 256, 256)
bounds = WEB_MERCATOR_TMS.bounds(147, 182, 9)
with rasterio.open(COG_NOWEB) as src_dst:
assert not utils._requested_tile_aligned_with_internal_tile(
src_dst, bounds, 256, 256)
with rasterio.open(COG_WEB_TILED) as src_dst:
assert utils._requested_tile_aligned_with_internal_tile(
src_dst, bounds, 256, 256)
def test_metadata():
"""Should return correct metadata."""
with rasterio.open(COG_CMAP) as src_dst:
meta = reader.metadata(src_dst)
assert meta["dtype"] == "int8"
assert meta["colorinterp"] == ["palette"]
assert not meta.get("scale")
assert not meta.get("ofsset")
assert meta.get("colormap")
with rasterio.open(COG_SCALE) as src_dst:
meta = reader.metadata(src_dst)
assert meta["dtype"] == "int16"
assert meta["colorinterp"] == ["gray"]
assert meta["scale"] == 0.0001
assert meta["offset"] == 1000.0
assert meta["band_descriptions"] == [("1", "Green")]
assert not meta.get("colormap")
assert meta["nodata_type"] == "Nodata"
meta = reader.metadata(src_dst, indexes=1)
assert meta["colorinterp"] == ["gray"]
bounds = WEB_MERCATOR_TMS.bounds(218, 99, 8)
meta = reader.metadata(src_dst, bounds)
assert meta["colorinterp"] == ["gray"]
assert meta["bounds"] == bounds
with rasterio.open(S3_ALPHA_PATH) as src_dst:
with pytest.warns(AlphaBandWarning):
meta = reader.metadata(src_dst)
assert len(meta["band_descriptions"]) == 3
assert meta["colorinterp"] == ["red", "green", "blue"]
assert meta["nodata_type"] == "Alpha"
meta = reader.metadata(src_dst, indexes=(1, 2, 3, 4))
assert len(meta["band_descriptions"]) == 4
assert meta["colorinterp"] == ["red", "green", "blue", "alpha"]
assert meta["nodata_type"] == "Alpha"
with rasterio.open(S3_MASK_PATH) as src_dst:
meta = reader.metadata(src_dst)
assert meta["nodata_type"] == "Mask"
def test_tile_valid_default():
"""Should return a 3 bands array and a full valid mask."""
with COGReader(COG_NODATA) as cog:
# Full tile
data, mask = cog.tile(43, 24, 7)
assert data.shape == (1, 256, 256)
assert mask.all()
tile_bounds = WEB_MERCATOR_TMS.xy_bounds(43, 24, 7)
data_part, _ = cog.part(
tile_bounds,
bounds_crs=WEB_MERCATOR_TMS.crs,
width=256,
height=256,
max_size=None,
)
assert numpy.array_equal(data, data_part)
# Partial tile
data, mask = cog.tile(42, 24, 7)
assert data.shape == (1, 256, 256)
assert not mask.all()
# Expression
data, mask = cog.tile(43, 24, 7, expression="b1*2,b1-100")
assert data.shape == (2, 256, 256)
with pytest.warns(ExpressionMixingWarning):
data, _ = cog.tile(43, 24, 7, indexes=(1, 2, 3), expression="b1*2")
assert data.shape == (1, 256, 256)
data, mask = cog.tile(43, 24, 7, indexes=1)
assert data.shape == (1, 256, 256)
data, mask = cog.tile(43, 24, 7, indexes=(
1,
1,
))
assert data.shape == (2, 256, 256)
def test_imageData_output():
"""Test ImageData output."""
with COGReader(COG_NODATA) as cog:
img = cog.tile(43, 24, 7)
assert img.data.shape == (1, 256, 256)
assert img.mask.all()
assert img.count == 1
assert img.data_as_image().shape == (256, 256, 1)
assert numpy.array_equal(~img.as_masked().mask[0] * 255, img.mask)
assert img.crs == WEB_MERCATOR_TMS.crs
assert img.bounds == WEB_MERCATOR_TMS.xy_bounds(43, 24, 7)
meta = parse_img(img.render(img_format="GTiff"))
assert meta["driver"] == "GTiff"
assert meta["crs"] == WEB_MERCATOR_TMS.crs
assert meta["transform"]
assert meta["count"] == 2
res = img.render(img_format="NPY")
arr = numpy.load(BytesIO(res))
assert numpy.array_equal(arr[0:1], img.data)
assert numpy.array_equal(arr[1], img.mask)
img = cog.tile(43, 24, 7)
assert img.data.dtype == "uint16"
imgc = img.post_process(color_formula="Gamma R 3.1")
assert imgc.data.dtype == "uint8"
imgr = img.post_process(in_range=(img.data.min(), img.data.max()))
assert not numpy.array_equal(img.data, imgr.data)
assert imgr.data.dtype == "uint8"
assert imgr.data.min() == 0
assert imgr.data.max() == 255
assert imgr.bounds == img.bounds
assert imgr.crs == img.crs
assert imgr.assets == img.assets
imgc = imgr.post_process(color_formula="Gamma R 3.1")
assert not numpy.array_equal(imgc.data, imgr.data)
assert imgc.data.dtype == "uint8"
assert imgc.bounds == img.bounds
assert imgc.crs == img.crs
assert imgc.assets == img.assets
imgrc = img.post_process(in_range=(img.data.min(), img.data.max()),
color_formula="Gamma R 3.1")
assert numpy.array_equal(imgc.data, imgrc.data)
bbox = (
-56.624124590533825,
73.52687881825946,
-56.530950796449005,
73.50183615350426,
)
img = cog.part(bbox)
assert img.data.shape == (1, 11, 41)
meta = parse_img(img.render(img_format="GTiff"))
assert meta["crs"] == WGS84_CRS
assert img.bounds == bbox
img = cog.part(bbox, dst_crs=cog.dataset.crs)
assert img.data.shape == (1, 29, 30)
meta = parse_img(img.render(img_format="GTiff"))
assert meta["crs"] == cog.dataset.crs
assert not img.bounds == bbox
img = cog.preview(max_size=128)
assert img.data.shape == (1, 128, 128)
assert img.bounds == cog.dataset.bounds
meta = parse_img(img.render(img_format="GTiff"))
assert meta["crs"] == cog.dataset.crs
