Missing real example about dask-geopandas HOT 2 CLOSED

@deeplook thanks for taking a look and giving feedback! (and yes, examples are still very scarce ..)

The dask_geopandas.from_geopandas expects a GeoDataFrame, but you are passing it a DataFrame (df, and not gdf). We should probably already check that and directly raise an error, instead of letting it result in an error in a later operation.
So you could pass gdf instead, but this of course doesn't do the xy-to-points conversion with dask.

For what you are trying to do (create a dask_geopandas.GeoDataFrame from a dask.DataFrame (and not from a geopandas.GeoDataFrame)), you can do something like:

ddf = dd.from_pandas(df, npartitions=4)
ddf["geometry"] = dask_geopandas.points_from_xy(ddf, "Airport1Latitude", "Airport1Longitude")
gddf = dask_geopandas.from_dask_dataframe(ddf)

The reason is that this is a bit more complicated than the set_geometry which you tried (and works for plain GeoPandas), is because GeoPandas monkey-patches the pandas DataFrame with a set_geometry method so that you can convert a pandas DataFrame which already has a geometry column to a GeoDataFrame using that method.
But we didn't (yet) do the same in dask_geopandas (we probably could for consistency with geopandas).

from dask-geopandas.

Thanks! I'll surely come back with other things... ;)

from dask-geopandas.