Resampling Grids

import numpy as np
import xarray as xr
import geoviews as gv
import datashader as dsh
from geoviews import opts

gv.extension('bokeh', 'matplotlib')

opts.defaults(
    opts.Image(width=600, height=400, colorbar=True),
    opts.Feature(apply_ranges=False),
    opts.QuadMesh(width=600, height=400, colorbar=True))