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"""tests rio_cogeo web."""
import os
import struct
import sys
import morecantile
import numpy
import pytest
import rasterio
from click.testing import CliRunner
from cogdumper.cog_tiles import COGTiff
from cogdumper.filedumper import Reader as FileReader
from rasterio.warp import transform_bounds
from rasterio.windows import from_bounds
from rio_cogeo.cogeo import cog_translate
from rio_cogeo.profiles import cog_profiles
from rio_cogeo.utils import get_zooms
from .conftest import requires_gdal31, requires_gdal35
raster_path_web = os.path.join(os.path.dirname(__file__), "fixtures", "image_web.tif")
raster_path_north = os.path.join(
os.path.dirname(__file__), "fixtures", "image_north.tif"
)
raster_geos = os.path.join(os.path.dirname(__file__), "fixtures", "image_geos.tif")
def test_cog_translate_webZooms():
"""
Test Web-Optimized COG.
- Test COG size is a multiple of 256 (mercator tile size)
- Test COG bounds are aligned with mercator grid at max zoom
- Test high resolution internal tiles are equal to mercator tile using
cogdumper and rio-tiler
- Test overview internal tiles are equal to mercator tile using
cogdumper and rio-tiler
"""
runner = CliRunner()
with runner.isolated_filesystem():
web_tms = morecantile.tms.get("WebMercatorQuad")
web_profile = cog_profiles.get("raw")
web_profile.update({"blockxsize": 256, "blockysize": 256})
config = {"GDAL_TIFF_OVR_BLOCKSIZE": "256"}
cog_translate(
raster_path_north,
"cogeo.tif",
web_profile,
quiet=True,
tms=web_tms,
config=config,
)
with rasterio.open("cogeo.tif") as out_dst:
_, maxzoom = get_zooms(out_dst)
assert maxzoom == 9
cog_translate(
raster_path_north,
"cogeo.tif",
web_profile,
quiet=True,
tms=web_tms,
zoom_level_strategy="lower",
config=config,
)
with rasterio.open("cogeo.tif") as out_dst:
_, maxzoom = get_zooms(out_dst)
assert maxzoom == 8
def test_cog_translate_web():
"""
Test Web-Optimized COG.
- Test COG size is a multiple of 256 (mercator tile size)
- Test COG bounds are aligned with mercator grid at max zoom
"""
tms = morecantile.tms.get("WebMercatorQuad")
runner = CliRunner()
with runner.isolated_filesystem():
web_profile = cog_profiles.get("raw")
web_profile.update({"blockxsize": 256, "blockysize": 256})
config = {"GDAL_TIFF_OVR_BLOCKSIZE": "256"}
cog_translate(
raster_path_web,
"cogeo.tif",
web_profile,
quiet=True,
tms=tms,
config=config,
aligned_levels=0,
)
with rasterio.open(raster_path_web) as src_dst:
with rasterio.open("cogeo.tif") as out_dst:
blocks = list(set(out_dst.block_shapes))
assert len(blocks) == 1
ts = blocks[0][0]
assert not out_dst.width % ts
assert not out_dst.height % ts
_, max_zoom = get_zooms(out_dst)
bounds = list(
transform_bounds(
src_dst.crs, "epsg:4326", *src_dst.bounds, densify_pts=21
)
)
ulTile = tms.xy_bounds(tms.tile(bounds[0], bounds[3], max_zoom))
assert out_dst.bounds.left == ulTile.left
assert out_dst.bounds.top == ulTile.top
lrTile = tms.xy_bounds(tms.tile(bounds[2], bounds[1], max_zoom))
assert out_dst.bounds.right == lrTile.right
assert round(out_dst.bounds.bottom, 6) == round(lrTile.bottom, 6)
tags = out_dst.tags()
assert tags["TILING_SCHEME_NAME"] == "WebMercatorQuad"
assert tags["TILING_SCHEME_ZOOM_LEVEL"]
assert "TILING_SCHEME_ALIGNED_LEVELS" not in tags
cog_translate(
raster_path_web,
"cogeo.tif",
web_profile,
quiet=True,
tms=tms,
config=config,
aligned_levels=4,
)
with rasterio.open("cogeo.tif") as out_dst:
tags = out_dst.tags()
assert tags["TILING_SCHEME_NAME"] == "WebMercatorQuad"
assert tags["TILING_SCHEME_ZOOM_LEVEL"]
assert tags["TILING_SCHEME_ALIGNED_LEVELS"] == "4"
cog_translate(
raster_path_web,
"cogeo.tif",
web_profile,
quiet=True,
tms=tms,
zoom_level=19,
config=config,
aligned_levels=4,
)
with rasterio.open("cogeo.tif") as out_dst:
tags = out_dst.tags()
assert tags["TILING_SCHEME_NAME"] == "WebMercatorQuad"
assert tags["TILING_SCHEME_ZOOM_LEVEL"] == "19"
assert tags["TILING_SCHEME_ALIGNED_LEVELS"] == "4"
@pytest.mark.skipif(sys.version_info < (3, 6), reason="requires python3.6 or higher")
def test_cog_translate_Internal():
"""
Test Web-Optimized COG.
- Test COG size is a multiple of 256 (mercator tile size)
- Test COG bounds are aligned with mercator grid at max zoom
- Test high resolution internal tiles are equal to mercator tile using
cogdumper and rio-tiler
- Test overview internal tiles are equal to mercator tile using
cogdumper and rio-tiler
"""
tms = morecantile.tms.get("WebMercatorQuad")
runner = CliRunner()
with runner.isolated_filesystem():
web_profile = cog_profiles.get("raw")
web_profile.update({"blockxsize": 256, "blockysize": 256})
config = {"GDAL_TIFF_OVR_BLOCKSIZE": "256"}
cog_translate(
raster_path_web,
"cogeo.tif",
web_profile,
quiet=True,
tms=tms,
config=config,
aligned_levels=0,
)
with rasterio.open(raster_path_web) as src_dst:
with rasterio.open("cogeo.tif") as out_dst:
blocks = list(set(out_dst.block_shapes))
assert len(blocks) == 1
ts = blocks[0][0]
assert not out_dst.width % ts
assert not out_dst.height % ts
_, max_zoom = get_zooms(out_dst)
bounds = list(
transform_bounds(
src_dst.crs, "epsg:4326", *src_dst.bounds, densify_pts=21
)
)
minimumTile = tms.tile(bounds[0], bounds[3], max_zoom)
maximumTile = tms.tile(bounds[2], bounds[1], max_zoom)
with open("cogeo.tif", "rb") as out_body:
reader = FileReader(out_body)
cog = COGTiff(reader.read)
# High resolution
# Top Left tile
_, tile = cog.get_tile(0, 0, 0)
tile_length = 256 * 256 * 3
t = struct.unpack_from("{}b".format(tile_length), tile)
arr = numpy.array(t).reshape(256, 256, 3).astype(numpy.uint8)
arr = numpy.transpose(arr, [2, 0, 1])
with rasterio.open("cogeo.tif") as src_dst:
w = from_bounds(*tms.xy_bounds(minimumTile), src_dst.transform)
data = src_dst.read(
window=w, out_shape=(src_dst.count, 256, 256)
)
numpy.testing.assert_array_equal(data, arr)
# Bottom right tile
_, tile = cog.get_tile(4, 3, 0)
tile_length = 256 * 256 * 3
t = struct.unpack_from("{}b".format(tile_length), tile)
arr = numpy.array(t).reshape(256, 256, 3).astype(numpy.uint8)
arr = numpy.transpose(arr, [2, 0, 1])
with rasterio.open("cogeo.tif") as src_dst:
w = from_bounds(*tms.xy_bounds(maximumTile), src_dst.transform)
data = src_dst.read(
window=w, out_shape=(src_dst.count, 256, 256)
)
numpy.testing.assert_array_equal(data, arr)
def test_cog_translate_web_align():
"""
Test Web-Optimized COG.
- Test COG bounds (thus block) is aligned with Zoom levels
"""
tms = morecantile.tms.get("WebMercatorQuad")
runner = CliRunner()
with runner.isolated_filesystem():
web_profile = cog_profiles.get("raw")
web_profile.update({"blockxsize": 256, "blockysize": 256})
config = {"GDAL_TIFF_OVR_BLOCKSIZE": "256"}
with rasterio.open(raster_path_web) as src_dst:
_, max_zoom = get_zooms(src_dst)
cog_translate(
raster_path_web,
"cogeo.tif",
web_profile,
quiet=True,
tms=tms,
config=config,
aligned_levels=2,
)
with rasterio.open(raster_path_web) as src_dst:
bounds = src_dst.bounds
with rasterio.open("cogeo.tif") as cog:
_, max_zoom = get_zooms(cog)
ulTile = tms.xy_bounds(tms.tile(bounds[0], bounds[3], max_zoom - 2))
assert round(cog.bounds[0], 5) == round(ulTile.left, 5)
assert round(cog.bounds[3], 5) == round(ulTile.top, 5)
lrTile = tms.xy_bounds(tms.tile(bounds[2], bounds[1], max_zoom - 2))
assert round(cog.bounds[2], 5) == round(lrTile.right, 5)
assert round(cog.bounds[1], 5) == round(lrTile.bottom, 5)
cog_translate(
raster_path_web,
"cogeo.tif",
web_profile,
quiet=True,
tms=tms,
config=config,
aligned_levels=3,
)
with rasterio.open(raster_path_web) as src_dst:
bounds = src_dst.bounds
with rasterio.open("cogeo.tif") as cog_dst:
_, max_zoom = get_zooms(cog_dst)
ulTile = tms.xy_bounds(tms.tile(bounds[0], bounds[3], max_zoom - 3))
assert round(cog_dst.bounds[0], 5) == round(ulTile.left, 5)
assert round(cog_dst.bounds[3], 5) == round(ulTile.top, 5)
lrTile = tms.xy_bounds(tms.tile(bounds[2], bounds[1], max_zoom - 3))
assert round(cog_dst.bounds[2], 5) == round(lrTile.right, 5)
assert round(cog_dst.bounds[1], 5) == round(lrTile.bottom, 5)
@requires_gdal31
def test_cog_translate_web_geos():
"""
Test Web-Optimized COG for input GEOS dataset.
- Test COG bounds (thus block) is aligned with Zoom levels
"""
runner = CliRunner()
with runner.isolated_filesystem():
web_tms = morecantile.tms.get("WebMercatorQuad")
profile = cog_profiles.get("jpeg")
profile.update({"blockxsize": 256, "blockysize": 256})
config = {"GDAL_TIFF_OVR_BLOCKSIZE": "256", "GDAL_TIFF_INTERNAL_MASK": True}
cog_translate(
raster_geos,
"cogeo.tif",
profile,
quiet=True,
tms=web_tms,
config=config,
)
cog_translate(
raster_geos,
"cogeo_gdal.tif",
profile,
quiet=True,
tms=web_tms,
use_cog_driver=True,
config=config,
)
with rasterio.open("cogeo.tif") as cog_dst, rasterio.open(
"cogeo_gdal.tif"
) as cog_gdal:
assert cog_dst.shape == cog_gdal.shape
for i in range(0, 4):
assert round(cog_dst.bounds[i], 5) == round(cog_gdal.bounds[i], 5)
@requires_gdal31
def test_web_align_cogeo_gdal():
"""Test Web-Optimized COG conformance with GDAL."""
runner = CliRunner()
with runner.isolated_filesystem():
web_tms = morecantile.tms.get("WebMercatorQuad")
web_profile = cog_profiles.get("raw")
web_profile.update({"blockxsize": 256, "blockysize": 256})
config = {"GDAL_TIFF_OVR_BLOCKSIZE": "256"}
cog_translate(
raster_path_web,
"cogeo.tif",
web_profile,
quiet=True,
tms=web_tms,
config=config,
)
cog_translate(
raster_path_web,
"cogeo_gdal.tif",
web_profile,
quiet=True,
tms=web_tms,
config=config,
use_cog_driver=True,
)
with rasterio.open("cogeo.tif") as cog_dst, rasterio.open(
"cogeo_gdal.tif"
) as cog_gdal:
assert cog_dst.shape == cog_gdal.shape
for i in range(0, 4):
assert round(cog_dst.bounds[i], 5) == round(cog_gdal.bounds[i], 5)
# Aligned Overviews
cog_translate(
raster_path_web,
"cogeo.tif",
web_profile,
quiet=True,
tms=web_tms,
config=config,
aligned_levels=4,
)
cog_translate(
raster_path_web,
"cogeo_gdal.tif",
web_profile,
quiet=True,
tms=web_tms,
config=config,
aligned_levels=4,
use_cog_driver=True,
)
with rasterio.open("cogeo.tif") as cog_dst, rasterio.open(
"cogeo_gdal.tif"
) as cog_gdal:
assert cog_dst.shape == cog_gdal.shape
for i in range(0, 4):
assert round(cog_dst.bounds[i], 5) == round(cog_gdal.bounds[i], 5)
@requires_gdal31
def test_gdal_zoom_options():
"""Test Web-Optimized GDAL with Zoom Options."""
runner = CliRunner()
with runner.isolated_filesystem():
web_tms = morecantile.tms.get("WebMercatorQuad")
web_profile = cog_profiles.get("raw")
web_profile.update({"blockxsize": 256, "blockysize": 256})
config = {"GDAL_TIFF_OVR_BLOCKSIZE": "256"}
cog_translate(
raster_path_web,
"cogeo_gdal.tif",
web_profile,
quiet=True,
tms=web_tms,
config=config,
use_cog_driver=True,
)
with rasterio.open("cogeo_gdal.tif") as out_dst:
tags = out_dst.tags()
assert tags["TILING_SCHEME_NAME"] == "WebMercatorQuad"
assert tags["TILING_SCHEME_ZOOM_LEVEL"] == "18"
assert "TILING_SCHEME_ALIGNED_LEVELS" not in tags
@requires_gdal35
def test_gdal_zoom_level_options():
"""Test Web-Optimized GDAL with Zoom Options."""
runner = CliRunner()
with runner.isolated_filesystem():
web_tms = morecantile.tms.get("WebMercatorQuad")
web_profile = cog_profiles.get("raw")
web_profile.update({"blockxsize": 256, "blockysize": 256})
config = {"GDAL_TIFF_OVR_BLOCKSIZE": "256"}
cog_translate(
raster_path_web,
"cogeo_gdal.tif",
web_profile,
quiet=True,
tms=web_tms,
config=config,
use_cog_driver=True,
zoom_level=19,
)
with rasterio.open("cogeo_gdal.tif") as out_dst:
tags = out_dst.tags()
assert tags["TILING_SCHEME_NAME"] == "WebMercatorQuad"
assert tags["TILING_SCHEME_ZOOM_LEVEL"] == "19"
assert "TILING_SCHEME_ALIGNED_LEVELS" not in tags
def test_web_optimized_arg_warning():
"""Verify a deprecation warning is emitted for `web_optimized` parameter"""
runner = CliRunner()
with runner.isolated_filesystem():
web_profile = cog_profiles.get("raw")
web_profile.update({"blockxsize": 256, "blockysize": 256})
with pytest.warns(
DeprecationWarning, match=r"^'web_optomized' option is deprecated.*"
):
cog_translate(
raster_path_north,
"cogeo.tif",
web_profile,
quiet=True,
web_optimized=True,
)
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