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Fix bug in auto computation of zoom levels #214

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merged 1 commit into from
May 30, 2023
Merged

Fix bug in auto computation of zoom levels #214

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2 changes: 1 addition & 1 deletion contextily/tile.py
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Original file line number Diff line number Diff line change
Expand Up @@ -531,7 +531,7 @@ def _calculate_zoom(w, s, e, n):
# Calculate the zoom
zoom_lon = np.ceil(np.log2(360 * 2.0 / lon_length))
zoom_lat = np.ceil(np.log2(360 * 2.0 / lat_length))
zoom = np.max([zoom_lon, zoom_lat])
zoom = np.min([zoom_lon, zoom_lat])
return int(zoom)


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10 changes: 5 additions & 5 deletions tests/test_ctx.py
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Original file line number Diff line number Diff line change
Expand Up @@ -398,13 +398,13 @@ def test_add_basemap_auto_zoom():
4891969.810251278,
)
assert_array_almost_equal(ax_extent, ax.images[0].get_extent())
assert ax.images[0].get_array()[:, :, :3].sum() == 563185119
assert ax.images[0].get_array().sum() == 830571999
assert ax.images[0].get_array().shape == (1024, 1024, 4)
assert ax.images[0].get_array()[:, :, :3].sum() == 141378723
assert ax.images[0].get_array().sum() == 208225443
assert ax.images[0].get_array().shape == (512, 512, 4)
assert_array_almost_equal(
ax.images[0].get_array()[:, :, :3].mean(), 179.03172779083252
ax.images[0].get_array()[:, :, :3].mean(), 179.772343
)
assert_array_almost_equal(ax.images[0].get_array().mean(), 198.023796)
assert_array_almost_equal(ax.images[0].get_array().mean(), 198.579257)


@pytest.mark.network
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