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import rasterio
from rasterio.rio.main import main_group
def test_err(tmpdir, runner):
outfile = str(tmpdir.join("out.tif"))
result = runner.invoke(
main_group, ["calc"] + ["($ 0.1 (read 1))", "tests/data/shade.tif", outfile]
)
assert result.exit_code == 1
def test_multiband_calc(tmpdir, runner):
outfile = str(tmpdir.join('out.tif'))
result = runner.invoke(main_group, ['calc'] + [
'(+ 125 (* 0.1 (read 1)))', 'tests/data/shade.tif', outfile],
catch_exceptions=False)
assert result.exit_code == 0
with rasterio.open(outfile) as src:
assert src.count == 1
assert src.meta['dtype'] == 'uint8'
data = src.read(masked=True)
assert data.min() == 125
assert data.data[0][0][0] == 255
assert data.mask[0][0][0]
def test_singleband_calc_byindex(tmpdir, runner):
outfile = str(tmpdir.join('out.tif'))
result = runner.invoke(main_group, ['calc'] + [
'(+ 125 (* 0.1 (read 1 1)))', 'tests/data/shade.tif', outfile],
catch_exceptions=False)
assert result.exit_code == 0
with rasterio.open(outfile) as src:
assert src.count == 1
assert src.meta['dtype'] == 'uint8'
data = src.read(masked=True)
assert data.min() == 125
def test_singleband_calc_byname(tmpdir, runner):
outfile = str(tmpdir.join('out.tif'))
result = runner.invoke(main_group, ['calc'] + [
'(+ 125 (* 0.1 (take shade 1)))', '--name', 'shade=tests/data/shade.tif',
outfile], catch_exceptions=False)
assert result.exit_code == 0
with rasterio.open(outfile) as src:
assert src.count == 1
assert src.meta['dtype'] == 'uint8'
data = src.read(masked=True)
assert data.min() == 125
def test_parts_calc(tmpdir, runner):
# Producing an RGB output from the hill shade.
# Red band has bumped up values. Other bands are unchanged.
outfile = str(tmpdir.join('out.tif'))
result = runner.invoke(main_group, ['calc'] + [
'(asarray (+ (read 1 1) 125) (read 1 1) (read 1 1))',
'tests/data/shade.tif', outfile], catch_exceptions=False)
assert result.exit_code == 0
with rasterio.open(outfile) as src:
assert src.count == 3
assert src.meta['dtype'] == 'uint8'
data = src.read(masked=True)
assert data[0].min() == 125
assert data[1].min() == 0
assert data[2].min() == 0
def test_parts_calc_2(tmpdir, runner):
# Produce greyscale output from the RGB file.
outfile = str(tmpdir.join('out.tif'))
result = runner.invoke(main_group, ['calc'] + [
'(+ (+ (/ (read 1 1) 3.0) (/ (read 1 2) 3.0)) (/ (read 1 3) 3.0))',
'tests/data/RGB.byte.tif', outfile], catch_exceptions=False)
assert result.exit_code == 0
with rasterio.open(outfile) as src:
assert src.count == 1
assert src.meta['dtype'] == 'uint8'
data = src.read(masked=True)
assert round(data.mean(), 1) == 60.3
def test_copy_rgb(tmpdir, runner):
outfile = str(tmpdir.join('out.tif'))
result = runner.invoke(main_group, ['calc'] + [
'(read 1)', 'tests/data/RGB.byte.tif', outfile],
catch_exceptions=False)
assert result.exit_code == 0
with rasterio.open(outfile) as src:
assert src.count == 3
assert src.meta['dtype'] == 'uint8'
data = src.read(masked=True)
assert round(data.mean(), 1) == 60.6
def test_fillnodata(tmpdir, runner):
outfile = str(tmpdir.join('out.tif'))
result = runner.invoke(main_group, ['calc'] + [
'(asarray (fillnodata (read 1 1)) (fillnodata (read 1 2)) (fillnodata (read 1 3)))',
'tests/data/RGB.byte.tif', outfile], catch_exceptions=False)
assert result.exit_code == 0
with rasterio.open(outfile) as src:
assert src.count == 3
assert src.meta['dtype'] == 'uint8'
data = src.read(masked=True)
assert round(data.mean(), 1) == 58.6
def test_fillnodata_map(tmpdir, runner):
outfile = str(tmpdir.join('out.tif'))
result = runner.invoke(main_group, ['calc'] + [
'(asarray (map fillnodata (read 1)))',
'tests/data/RGB.byte.tif', outfile], catch_exceptions=False)
assert result.exit_code == 0
with rasterio.open(outfile) as src:
assert src.count == 3
assert src.meta['dtype'] == 'uint8'
data = src.read(masked=True)
assert round(data.mean(), 1) == 58.6
assert data[0][60][60] > 0
def test_sieve_band(tmpdir, runner):
outfile = str(tmpdir.join('out.tif'))
result = runner.invoke(main_group, ['calc'] + [
'(sieve (band 1 1) 42)', 'tests/data/shade.tif', outfile],
catch_exceptions=False)
assert result.exit_code == 0
with rasterio.open(outfile) as src:
assert src.count == 1
assert src.meta['dtype'] == 'uint8'
def test_sieve_read(tmpdir, runner):
outfile = str(tmpdir.join('out.tif'))
result = runner.invoke(main_group, ['calc'] + [
"(sieve (read 1 1 'uint8') 42)",
'tests/data/shade.tif', outfile], catch_exceptions=False)
assert result.exit_code == 0
with rasterio.open(outfile) as src:
assert src.count == 1
assert src.meta['dtype'] == 'uint8'
def test_positional_calculation_byindex(tmpdir, runner):
# See Issue 947: https://github.com/rasterio/rasterio/issues/947
# Prior to fix, 'shade.tif' reliably is read as 2nd input and
# we should expect this to fail due to array shape error
# ("operands could not be broadcast together")
outfile = str(tmpdir.join('out.tif'))
result = runner.invoke(main_group, ['calc'] + [
'(- (read 1 1) (read 2 2))',
'tests/data/RGB.byte.tif',
'tests/data/RGB.byte.tif',
'tests/data/shade.tif',
outfile], catch_exceptions=False)
assert result.exit_code == 0
window = ((0, 1), (0, 1))
with rasterio.open('tests/data/RGB.byte.tif') as rgb:
answer = rgb.read(1, window=window) - rgb.read(1, window=window)
with rasterio.open(outfile) as src:
assert src.read(1, window=window) == answer
def test_bool(tmpdir, runner):
"""Check on issue #2401"""
outfile = str(tmpdir.join("out.tif"))
result = runner.invoke(
main_group,
["calc"]
+ [
"(>= (read 1 1) 127)",
"-t",
"uint8",
"--masked",
"--profile",
"nodata=255",
"tests/data/RGB.byte.tif",
outfile,
],
catch_exceptions=False,
)
assert result.exit_code == 0
with rasterio.open(outfile) as src:
assert (src.read() == 255).any()
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