readers.arrow

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readers.arrow#

Dynamic Plugin

This stage requires a dynamic plugin to operate

Streamable Stage

This stage supports streaming operations

The Arrow reader supports reading Arrow and Parquet -formatted data as written by writers.arrow, although it should support point clouds written by other writers too if they follow either the GeoArrow or GeoParquet specification.

Caveats:

  • Which schema is read is chosen by the file name extension, but can be overridden with the format option set to geoarrow or geoparquet

Options#

filename

Arrow GeoArrow or GeoParquet file to read [Required]

format

geoarrow or geoparquet option to override any filename extension hinting of data type [Optional]

count

Maximum number of points to read. [Default: unlimited]

override_srs

Spatial reference to apply to the data. Overrides any SRS in the input itself. Can be specified as a WKT, PROJ or EPSG string. Can’t use with ‘default_srs’. [Default: none]

default_srs

Spatial reference to apply to the data if the input does not specify one. Can be specified as a WKT, PROJ or EPSG string. Can’t use with ‘override_srs’. [Default: none]

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