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Add more tests for xarray grid shading #650

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Merged
seisman merged 1 commit into from
Oct 15, 2020
Merged

Add more tests for xarray grid shading #650

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15 changes: 12 additions & 3 deletions pygmt/tests/test_grdimage.py
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Original file line number Diff line number Diff line change
Expand Up @@ -78,18 +78,27 @@ def test_grdimage_file():
condition=gmt_version <= Version("6.1.1"),
)
@check_figures_equal()
def test_grdimage_xarray_shading(grid):
@pytest.mark.parametrize(
"shading",
[True, 0.5, "+a30+nt0.8", "@earth_relief_01d_g+d", "@earth_relief_01d_g+a60+nt0.8"],
)
def test_grdimage_shading_xarray(grid, shading):
"""
Test that shading works well for xarray.
See https://github.com/GenericMappingTools/pygmt/issues/364

The ``shading`` can be True, a constant intensity, some modifiers, or
a grid with modifiers.

See https://github.com/GenericMappingTools/pygmt/issues/364 and
https://github.com/GenericMappingTools/pygmt/issues/618.
"""
fig_ref, fig_test = Figure(), Figure()
kwargs = dict(
region=[-180, 180, -90, 90],
frame=True,
projection="Cyl_stere/6i",
cmap="geo",
shading=True,
shading=shading,
)

fig_ref.grdimage("@earth_relief_01d_g", **kwargs)
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