GWT-OpenLayers 3+

With gwt-ol you can write fast mapping applications for web and mobile in pure Java. Technically speaking, it is a GWT wrapper for OpenLayers 3+ using the JSInterop-Features of the GWT-SDK. The project consists of two parts:

a GWT wrapper for OpenLayers 3+ (gwt-ol3-client)
a demo module for showing wrapper functionality (gwt-ol3-demo)

You can build (mvn package) and run (mvn gwt:devmode) the application using Maven.

If you want to build the application without Maven please consider the following hints:

Building the application with older GWT-SDK than 2.8.0-beta1 will not work. You can download the latest SDK here.

Demo App

GWT-OL live example

Project Setup

Maven dependency

<dependency>
  <groupId>com.github.tdesjardins</groupId>
  <artifactId>gwt-ol3</artifactId>
  <version>[x.x.x]</version>
</dependency>

Replace [x.x.x] with the gwt-ol version you want to use.

GWT module

  <inherits name='ol.GwtOL'/>

optional: add this line for proj4js support

  <inherits name="proj4.GwtProj4"/>

Resources

  <link href="//cdn.jsdelivr.net/gh/openlayers/openlayers.github.io@master/en/v[x.x.x]/css/ol.css" rel="stylesheet" type="text/css">
  <script src="//cdn.jsdelivr.net/gh/openlayers/openlayers.github.io@master/en/v[x.x.x]/build/ol.js" type="text/javascript"></script>

Replace [x.x.x] with the OpenLayers version you want to use.

Download

Releases are deployed to the Central Repository.

Snapshots of the development version are available in Sonatype's snapshots repository.

Projects using gwt-ol

Running Reality
Mapping of Covid19 spread in Italy

TDesjardins/gwt-ol