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Add alpha dimension #671

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Add alpha dimension #671

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76a6e82
Add alpha dimension
ahuang11 Sep 14, 2023
1702d72
Add test
ahuang11 Sep 14, 2023
68e4c87
Merge branch 'main' into alpha_dim
ahuang11 Jan 4, 2024
6d84486
Merge branch 'main' into alpha_dim
ahuang11 May 1, 2024
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Binary file added geoviews/tests/assets/test_alpha.tif
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13 changes: 13 additions & 0 deletions geoviews/tests/test_util.py
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Original file line number Diff line number Diff line change
@@ -1,3 +1,5 @@
from pathlib import Path

import cartopy.crs as ccrs
import pytest

Expand All @@ -9,6 +11,7 @@
except ImportError:
rxr = None

ASSETS_DIR = Path(__file__).parent / "assets"

@pytest.mark.parametrize(
"raw_crs",
Expand Down Expand Up @@ -45,3 +48,13 @@
assert isinstance(output, gv.RGB)
assert sorted(map(str, output.kdims)) == ["x", "y"]
assert isinstance(output.crs, ccrs.CRS)


@pytest.mark.skipif(rxr is None, reason="Needs rioxarray to be installed")
def test_from_xarray_with_alpha():
file = str(ASSETS_DIR / "test_alpha.tif")
output = from_xarray(rxr.open_rasterio(file))

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GitHub Actions / Unit tests on Python 3.9, ubuntu-latest 

test_from_xarray_with_alpha

UserWarning: Could not decode projection from crs string EPSG:4326, defaulting to non-geographic element.

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GitHub Actions / Unit tests on Python 3.11, ubuntu-latest 

test_from_xarray_with_alpha

UserWarning: Could not decode projection from crs string EPSG:4326, defaulting to non-geographic element.

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GitHub Actions / Unit tests on Python 3.9, macos-latest 

test_from_xarray_with_alpha

UserWarning: Could not decode projection from crs string EPSG:4326, defaulting to non-geographic element.

Check failure on line 56 in geoviews/tests/test_util.py

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GitHub Actions / Unit tests on Python 3.11, macos-latest 

test_from_xarray_with_alpha

UserWarning: Could not decode projection from crs string EPSG:4326, defaulting to non-geographic element.

assert isinstance(output, gv.RGB)
assert sorted(map(str, output.kdims)) == ["x", "y"]
assert set(map(str, output.vdims)) == set(["R", "G", "B", "A"])
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