This repo contains some Rust cli tools for working with new-line delimited geojson

These tools are currently pre-release. There will be releases with builds for linux and macos.

Build

This repo requires a nightly compiler before 2020-09-28 exclusive.

To build

rustup default nightly-2020-09-27
cargo build --release

for lto (optimizations for code speed and size) on ndjson

cd ndjson
cargo build -Z unstable-options --profile=release-ndjson

ls -lh ../target/release-ndjson/ndjson

Current

ndjson-spatial

    ndjson-spatial centroid

    ndjson-spatial intersection --ref <reference-file.geo.json>

- currently: polygon/polygon

    ndjson-spatial nearest-distance --ref <ref> --field-name

- currently: point/point

    ndjson-spatial area --field-name <field-name>

    ndjson-spatial from-geojson

    ndjson-spatial to-geojson

ndjson

    ndjson filter <expression>

    ndjson filter "d.properties.Area >= 30000.0"

    ndjson pick-field <expression>

    ndjson pick-field "d.properties.distance "

    ndjson join --ref <ref> --ref-field <ref-fields> --stream-field <stream-field>

- ref-fields, stream-fields should be space delimited list of 'd.properties.FIELD_NAME'

Proposed

ndjson-spatial

    ndjson-spatial join-contains --ref <reference-file.geo.json> --field-name <field-name>

ndjson

    ndjson select-count <expression> --selector <selector> --field-name <field-name>

    ndjson select-count d.properties.join --selector light=yes --field-name NUM_W_LIGHT

    ndjson select-avg <expression> --selector <selector> --field-name <field-name>

    ndjson select-avg d.properties.join --selector light=yes --field-name AVG_W_LIGHT