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0653/merge plot polar contour #654

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merged 10 commits into from
Dec 4, 2023
Merged

0653/merge plot polar contour #654

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6c072db
Added new branch for merging corrections
b-barton Nov 24, 2023
8a8f096
Merge in develop
b-barton Nov 24, 2023
c6b9c24
Added code to plot_polar_contour()
b-barton Nov 24, 2023
079e27d
Apply Black formatting to Python code.
Nov 24, 2023
ce43a35
Update pylint THESHOLD score
Nov 24, 2023
dfa5d44
Try changing the test to get the gitactions happy
b-barton Nov 24, 2023
4a82a67
Apply Black formatting to Python code.
Nov 24, 2023
5d40177
Try changing the test to import cartopy
b-barton Nov 24, 2023
15d2b4c
Apply Black formatting to Python code.
Nov 24, 2023
c46a5c6
Putting the test back how it was
b-barton Nov 24, 2023
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2 changes: 1 addition & 1 deletion .pylint-score
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@@ -1 +1 @@
5.79
5.81
17 changes: 12 additions & 5 deletions coast/_utils/plot_util.py
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Expand Up @@ -539,16 +539,23 @@ def plot_polar_contour(lon, lat, var, ax_in, **kwargs):
Returns:
plot object: can be used for making a colorbar
"""
try:
import cartopy.crs as ccrs # mapping plots
except ImportError:
warn("No cartopy found - please run\nconda install -c conda-forge cartopy")
sys.exit(-1)

# crs_ps = pyproj.Proj("epsg:3413") # North pole projection
# crs_wgs84 = pyproj.Proj("epsg:4326")
transformer = pyproj.Transformer.from_crs("epsg:3413", "epsg:4326")
crs_ps = ccrs.CRS("epsg:3413") # North pole projection
crs_wgs84 = ccrs.CRS("epsg:4326")
# NSIDC grid
x_grid, y_grid = np.meshgrid(np.linspace(-3850, 3750, 304) * 1000, np.linspace(-5350, 5850, 448) * 1000)
lon_grid, lat_grid = transformer.transform(x_grid, y_grid)
grid = crs_wgs84.transform_points(crs_ps, x_grid, y_grid)
# output is x, y, z triple but we don't need z
lon_grid = grid[:, :, 0]
lat_grid = grid[:, :, 1]
points = np.vstack((lon.flatten(), lat.flatten())).T
grid_var = si.griddata(points, var.flatten(), (lon_grid, lat_grid), method="linear")
cs_out = ax_in.contour(x_grid, y_grid, grid_var, **kwargs)
cs_out = ax_in.contour(x_grid, y_grid, grid_var, transform=ccrs.epsg(3413), **kwargs)
return cs_out


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