def compare_proj(proj1: CRS, proj2: CRS) -> bool:
"""
Compare two projections to see if they are the same, using pyproj.CRS.is_exact_same.
:param proj1: The first projection to compare.
:param proj2: The first projection to compare.
:returns: True if the two projections are the same.
"""
assert all(
[isinstance(proj1, (pyproj.CRS, CRS)), isinstance(proj2, (pyproj.CRS, CRS))]
), "proj1 and proj2 must be rasterio.crs.CRS objects."
proj1 = pyproj.CRS(proj1.to_string())
proj2 = pyproj.CRS(proj2.to_string())
same: bool = proj1.is_exact_same(proj2)
return same
def metadata(sceneid, pmin=2, pmax=98, **kwargs):
"""
Retrieve image bounds and band statistics.
Attributes
----------
sceneid : str
Sentinel-2 sceneid.
pmin : int, optional, (default: 2)
Histogram minimum cut.
pmax : int, optional, (default: 98)
Histogram maximum cut.
kwargs : optional
These are passed to 'rio_tiler.sentinel2._sentinel_stats'
e.g: histogram_bins=20'
Returns
-------
out : dict
Dictionary with image bounds and bands statistics.
"""
scene_params = _sentinel_parse_scene_id(sceneid)
path_prefix = os.path.join(scene_params["aws_bucket"],
scene_params["aws_prefix"])
preview_file = os.path.join(path_prefix, scene_params["preview_file"])
dst_crs = CRS({"init": "EPSG:4326"})
with rasterio.open(preview_file) as src:
bounds = transform_bounds(*[src.crs, dst_crs] + list(src.bounds),
densify_pts=21)
info = {"sceneid": sceneid}
info["bounds"] = {"value": bounds, "crs": dst_crs.to_string()}
addresses = [
"{}/{}/B{}.jp2".format(path_prefix, scene_params["preview_prefix"],
band) for band in scene_params["bands"]
]
_stats_worker = partial(_sentinel_stats,
percentiles=(pmin, pmax),
**kwargs)
with futures.ThreadPoolExecutor(max_workers=MAX_THREADS) as executor:
responses = executor.map(_stats_worker, addresses)
info["statistics"] = {
b: v
for b, d in zip(scene_params["bands"], responses)
for k, v in d.items()
}
return info
def metadata(sceneid, pmin=2, pmax=98):
"""
Retrieve image bounds and band statistics.
Attributes
----------
sceneid : str
Sentinel-2 sceneid.
pmin : int, optional, (default: 2)
Histogram minimum cut.
pmax : int, optional, (default: 98)
Histogram maximum cut.
Returns
-------
out : dict
Dictionary with image bounds and bands statistics.
"""
scene_params = _sentinel_parse_scene_id(sceneid)
sentinel_address = "{}/{}".format(SENTINEL_BUCKET, scene_params["key"])
dst_crs = CRS({"init": "EPSG:4326"})
with rasterio.open("{}/preview.jp2".format(sentinel_address)) as src:
bounds = transform_bounds(
*[src.crs, dst_crs] + list(src.bounds), densify_pts=21
)
info = {"sceneid": sceneid}
info["bounds"] = {"value": bounds, "crs": dst_crs.to_string()}
addresses = [
"{}/preview/B{}.jp2".format(sentinel_address, band) for band in SENTINEL_BANDS
]
_stats_worker = partial(_sentinel_stats, percentiles=(pmin, pmax))
with futures.ThreadPoolExecutor(max_workers=MAX_THREADS) as executor:
responses = executor.map(_stats_worker, addresses)
info["statistics"] = {
b: v for b, d in zip(SENTINEL_BANDS, responses) for k, v in d.items()
}
return info
