mirror of
https://github.com/rasterio/rasterio.git
synced 2025-12-08 17:36:12 +00:00
106 lines
3.5 KiB
Python
106 lines
3.5 KiB
Python
import subprocess
|
|
import re
|
|
|
|
import affine
|
|
import numpy as np
|
|
import pytest
|
|
|
|
import rasterio
|
|
from rasterio.env import GDALVersion
|
|
|
|
from .conftest import requires_gdal21
|
|
|
|
|
|
def test_update_tags(data):
|
|
tiffname = str(data.join('RGB.byte.tif'))
|
|
with rasterio.open(tiffname, 'r+') as f:
|
|
f.update_tags(a='1', b='2')
|
|
f.update_tags(1, c=3)
|
|
with pytest.raises(IndexError):
|
|
f.update_tags(4, d=4)
|
|
assert f.tags() == {'AREA_OR_POINT': 'Area', 'a': '1', 'b': '2'}
|
|
assert ('c', '3') in f.tags(1).items()
|
|
info = subprocess.check_output(["gdalinfo", tiffname]).decode('utf-8')
|
|
assert re.search(r'Metadata:\W+a=1\W+AREA_OR_POINT=Area\W+b=2', info)
|
|
|
|
|
|
def test_update_band(data):
|
|
tiffname = str(data.join('RGB.byte.tif'))
|
|
with rasterio.open(tiffname, 'r+') as f:
|
|
f.write(np.zeros(f.shape, dtype=f.dtypes[0]), indexes=1)
|
|
with rasterio.open(tiffname) as f:
|
|
assert not f.read(1).any()
|
|
|
|
|
|
def test_update_spatial(data):
|
|
tiffname = str(data.join('RGB.byte.tif'))
|
|
with rasterio.open(tiffname, 'r+') as f:
|
|
f.transform = affine.Affine(1.0, 0.0, 1.0,
|
|
0.0, -1.0, 0.0)
|
|
f.crs = {'init': 'epsg:4326'}
|
|
with rasterio.open(tiffname) as f:
|
|
assert f.transform == affine.Affine(1.0, 0.0, 1.0,
|
|
0.0, -1.0, 0.0)
|
|
assert f.transform.to_gdal() == (1.0, 1.0, 0.0, 0.0, 0.0, -1.0)
|
|
assert f.crs == {'init': 'epsg:4326'}
|
|
|
|
|
|
def test_update_spatial_epsg(data):
|
|
tiffname = str(data.join('RGB.byte.tif'))
|
|
with rasterio.open(tiffname, 'r+') as f:
|
|
f.transform = affine.Affine(1.0, 0.0, 1.0,
|
|
0.0, -1.0, 0.0)
|
|
f.crs = 'EPSG:4326'
|
|
with rasterio.open(tiffname) as f:
|
|
assert f.transform == affine.Affine(1.0, 0.0, 1.0,
|
|
0.0, -1.0, 0.0)
|
|
assert f.transform.to_gdal() == (1.0, 1.0, 0.0, 0.0, 0.0, -1.0)
|
|
assert f.crs == {'init': 'epsg:4326'}
|
|
|
|
|
|
def test_update_nodata(data):
|
|
tiffname = str(data.join('RGB.byte.tif'))
|
|
with rasterio.open(tiffname, 'r+') as f:
|
|
f.nodata = 255
|
|
with rasterio.open(tiffname) as f:
|
|
assert f.nodatavals == (255, 255, 255)
|
|
|
|
|
|
@pytest.mark.skipif(
|
|
GDALVersion.runtime().at_least('2.1'),
|
|
reason='Tests behavior specific to GDAL versions < 2.1')
|
|
def test_update_nodatavals_none_fails(data):
|
|
"""GDAL 2.0 doesn't support un-setting nodata values."""
|
|
tiffname = str(data.join('RGB.byte.tif'))
|
|
with rasterio.open(tiffname, 'r+') as f:
|
|
with pytest.raises(NotImplementedError):
|
|
f.nodata = None
|
|
|
|
|
|
@requires_gdal21
|
|
def test_update_nodatavals_none(data):
|
|
"""GDAL 2.1 does support un-setting nodata values."""
|
|
tiffname = str(data.join('RGB.byte.tif'))
|
|
with rasterio.open(tiffname, 'r+') as f:
|
|
f.nodata = None
|
|
with rasterio.open(tiffname) as f:
|
|
assert f.nodatavals == (None, None, None)
|
|
|
|
|
|
def test_update_mask_true(data):
|
|
"""Provide an option to set a uniformly valid mask."""
|
|
tiffname = str(data.join('RGB.byte.tif'))
|
|
with rasterio.open(tiffname, 'r+') as f:
|
|
f.write_mask(True)
|
|
with rasterio.open(tiffname) as f:
|
|
assert f.read_masks().all()
|
|
|
|
|
|
def test_update_mask_false(data):
|
|
"""Provide an option to set a uniformly invalid mask."""
|
|
tiffname = str(data.join('RGB.byte.tif'))
|
|
with rasterio.open(tiffname, 'r+') as f:
|
|
f.write_mask(False)
|
|
with rasterio.open(tiffname) as f:
|
|
assert not f.read_masks().any()
|