rasterio/tests/test_colormap.py
2014-09-01 22:00:56 -06:00

34 lines
909 B
Python

import logging
import pytest
import subprocess
import sys
import rasterio
logging.basicConfig(stream=sys.stderr, level=logging.DEBUG)
def test_write_colormap(tmpdir):
with rasterio.drivers():
with rasterio.open('tests/data/shade.tif') as src:
shade = src.read_band(1)
meta = src.meta
tiffname = str(tmpdir.join('foo.tif'))
with rasterio.open(tiffname, 'w', **meta) as dst:
dst.write_band(1, shade)
dst.write_colormap(1, {0: (255, 0, 0, 255), 255: (0, 0, 255, 255)})
cmap = dst.colormap(1)
assert cmap[0] == (255, 0, 0, 255)
assert cmap[255] == (0, 0, 255, 255)
with rasterio.open(tiffname) as src:
cmap = src.colormap(1)
assert cmap[0] == (255, 0, 0, 255)
assert cmap[255] == (0, 0, 255, 255)
# subprocess.call(['open', tiffname])