Simple features are a popular, standardised way to create spatial vector data
with a list-type geometry column. Parquet files are standard column-oriented
files designed by Apache Arrow (https://parquet.apache.org/) for fast
sfarrow is designed to support the reading and writing of
simple features in
sf objects from/to Parquet files (.parquet) and
Feather files (.feather) within
R. A key goal of
sfarrow is to
support interoperability of spatial data in files between
Python through the use of standardised metadata.
Coordinate reference and geometry field information for
sf objects are
stored in standard metadata tables within the files. The metadata are based
on a standard representation (Version 0.1.0, reference:
https://github.com/geopandas/geo-arrow-spec). This is compatible with
the format used by the Python library
GeoPandas for read/writing
Parquet/Feather files. Note to users: this metadata format is not yet stable
for production uses and may change in the future.
This work was undertaken by Chris Jochem, a member of the WorldPop Research Group at the University of Southampton(https://www.worldpop.org/).
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