Crate postgis

An extension to rust-postgres, adds support for PostGIS.

• PostGIS type helper
• GCJ02 support (used offically in Mainland China)
• Tiny WKB (TWKB) support

use postgres::{Client, NoTls};
use postgis::{ewkb, LineString};

fn main() {
    let mut client = Client::connect("host=localhost user=postgres", NoTls).unwrap();
    for row in &client.query("SELECT * FROM busline", &[]).unwrap() {
        let route: ewkb::LineString = row.get("route");
        let last_stop = route.points().last().unwrap();
        let _ = client.execute("INSERT INTO stops (stop) VALUES ($1)", &[&last_stop]);
    }
}

Handling NULL values:

let route = row.try_get::<_, Option<ewkb::LineString>>("route");
match route {
    Ok(Some(geom)) => { println!("{:?}", geom) }
    Ok(None) => { /* Handle NULL value */ }
    Err(err) => { println!("Error: {}", err) }
}

Modules

error
ewkb	Read and write geometries in OGC WKB format.
mars	Conversion between GCJ-02 and WGS-84 coordinates.
twkb	Read geometries in Tiny WKB format.

Traits

LineString
MultiLineString
MultiPoint
MultiPolygon
Point
Polygon