issue_comments: 256894432

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https://github.com/pydata/xarray/issues/781#issuecomment-256894432 https://api.github.com/repos/pydata/xarray/issues/781 256894432 MDEyOklzc3VlQ29tbWVudDI1Njg5NDQzMg== 10050469 2016-10-28T11:06:35Z 2016-10-28T11:06:35Z MEMBER

Yes, this is definitely a problem.

See for example the differences between imshow (which does fine) and pcolormesh (which is clearly wrong)

``` python import numpy as np import matplotlib.pyplot as plt import cartopy.crs as ccrs import xarray as xr

da = xr.DataArray(np.arange(20).reshape(4, 5), dims=['lat', 'lon'], coords = {'lat': np.linspace(0, 30, 4), 'lon': np.linspace(-20, 20, 5)})

f = plt.figure() ax = plt.axes(projection=ccrs.PlateCarree()) da.plot.pcolormesh(ax=ax, transform=ccrs.PlateCarree()) lon, lat = np.meshgrid(da.lon.values, da.lat.values) ax.scatter(lon, lat, transform=ccrs.PlateCarree()) ax.coastlines() ax.set_title('pcolormesh')

f = plt.figure() ax = plt.axes(projection=ccrs.PlateCarree()) da.plot.imshow(ax=ax, transform=ccrs.PlateCarree()) ax.scatter(lon, lat, transform=ccrs.PlateCarree()) ax.coastlines() ax.set_title('imshow')

plt.show() ```

 
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