Crate osmflat

Flat OpenStreetMap (OSM) data format providing an efficient random data access through memory mapped files.

The data format is described and implemented in flatdata. The schema describes the fundamental OSM data structures: nodes, ways, relations and tags as simple non-nested data structures. The relations between these are expressed through indexes.

Examples

Open a flatdata archive (compiled from pbf with osmflatc) and iterate through nodes:

use osmflat::{FileResourceStorage, Osm};

fn main() {
    let storage = FileResourceStorage::new("path/to/archive.osm.flatdata");
    let archive = Osm::open(storage).unwrap();

    for node in archive.nodes().iter() {
        println!("{:?}", node);
    }
}

For more examples, see the examples directory.

Re-exports

pub use crate::osm::*;

Modules

osm

Structs

FileResourceStorage

Resource storage on disk using memory mapped files.

Functions

find_tag

Finds a tag by its key in the given range and returns the corresponding value.

find_tag_by

Finds the first tag in the given range which satisfies the predicate applied to the key and value and returns the corresponding value.

has_tag

Checks if there is a tag in range with a given key and value.

iter_tags

Returns an iterator over tags specified by range.