Online Demo

London

• http://os-elevation.appspot.com/elevation?latitude=51.50722&longitude=-0.12750
• http://os-elevation.appspot.com/elevation?easting=530050&northing=180361

London, OS HQ, and Liverpool

• http://os-elevation.appspot.com/elevation?locations=51.50722,-0.12750|50.937947,-1.470624|53.411836,-2.993172

Code

include a gradle reference:

uk.co.ordnancesurvey.api:elevation:0.1.0

build the elevation service:

    Configuration configuration = new Configuration.Builder()
            .setStrategy(Strategy.MAX_PERFORMANCE)
            .terrain50DataUrl("https://github.com/snodnipper/terrain50-java/raw/master/data/")
            .build();
    ElevationService elevationService = ElevationServiceProvider.getInstance(configuration);

use it:

    double elevation = elevationService.getElevation(51.50722, -0.12750);
    double elevation2 = elevationService.getElevation(SpatialReference.EPSG_27700, 530050, 180361);

Server

It is trivial to run independently. Simply:

• download OS Terrain 50
• rename the files using the rename.py
• upload the renamed files to a client accessable webserver (e.g. apache)
• point clients to webserver endpoint via the .terrain50DataUrl(base_url) method

Maintainer Repo Configuration

The maintainer should consider adding the following to their properties file:

~/.gradle/gradle.properties
   mavenUser=nexusUser
   mavenPassword=nexusPassword