Rust library for building Mapbox Vector Tiles from PostGIS. This library was adapted from the MVT implementation in Pirmin Kalberer's t-rex server, with changes intended to improve usage ergonamics.
Put this in your Cargo.toml:
toml
[dependencies]
vectortile = "0.2.0"
And this in your crate root:
rust
extern crate vectortile;
See examples/streets.rs for a full example w/ PostGIS.
This example shows creating Features and Tiles programmatically: ```rust use vectortile::{Tile, Layer, Feature, Value}; use vectortile::geom::{Geometry, Point}; use vectortile::grid::{Grid, Extent}; use postgis::ewkb;
// Build a new tile, the hard way let bbox = Extent{minx: 958826.08, miny: 5987771.04, maxx: 978393.96, maxy: 6007338.92}; let mut tile = Tile::new(&bbox); let mut layer = Layer::new("place"); let geom: Geometry = ewkb::GeometryT::Point(Point::new(960000.0, 6002729.0, Some(3857))); let mut feature = Feature::new(geom); feature.addproperty("place", Value::String(String::from("business"))); feature.addproperty("name", Value::String(String::from("Ed's Mospresso Shack"))); layer.add_feature(feature);
tile.add_layer(layer);
// Encode the tile as protobuf and inspect it let grid = Grid::wgs84(); let data = tile.encode(&grid); println!("{:#?}", data); ```