We are a community that encourages contributions. Join us. Here's how.
git config --get-regexp user.*.
git config --global push.default simple- when running
git push, only push the current branch (default in Git 2.0).
git config --global pull.rebase preserve- when pulling remote changes, rebase your local changes on top of the remote changes, to avoid unnecessary merge commits.
git config --global fetch.prune true- when fetching remote changes, remove any remote branches that no longer exist on the remote.
git clone email@example.com:yourusername/cesium.git.
git clone firstname.lastname@example.org:AnalyticalGraphicsInc/cesium.git
git checkout -b myFeature.
From the root Cesium directory, run:
./Tools/apache-ant-1.8.2/bin/ant combine runServer
Then browse to http://localhost:8080/.
For a default developer build, run Ant from the root Cesium directory:
To run the HTTP server for testing, run:
To generate HTML documentation, run:
For all build options, see Build Targets below.
We encourage contributors to use their IDE of choice, but many of us use Eclipse. Here's how we set it up.
Download the Eclipse IDE for Java Developers. Extract to a directory of your choice. Run it.
Run Eclipse. Close the Welcome page.
Window - Preferences:
Import Cesium into your workspace: File - Import, General - Existing Projects into Workspace, Next. Fill in the path to the root Cesium directory, Finish.
Window - Show View - Console.
Also consider the Optional Eclipse Configuration options below.
At this point you are ready to contribute. Continue reading below for more details on the developer setup, or read about Cesium's architecture; check out the roadmap; join the forum; and start hacking.
This section has additional information on our development tools.
The following targets can be built:
build- A fast, developer-oriented build that prepares the source tree for use as standard Asynchronous Module Definition (AMD) modules, suitable for running tests and most examples (some Sandcastle examples require running
combine). This runs automatically when saving files in Eclipse.
build, plus uses Node.js to run the RequireJS optimizer to combine Cesium and the Almond AMD loader to produce all-in-one files in the
Build/Cesiumdirectory that expose the entire Cesium API attached to a single global Cesium object. This version is useful if you don't want to use the modules directly with a standard AMD loader.
combine, plus minifies Cesium.js using UglifyJS2 for a smaller deployable file.
combine, plus uses the optimizer to remove debugging code that validates function input and throws DeveloperErrors.
minify, and removes debugging code.
buildApps- Builds the example applications (such as Cesium Viewer) to produce self-contained, minified, deployable versions in the
generateDocumentation- Generates HTML documentation in
Build/Documentationusing JSDoc 3. This step requires
npm installto be run first.
release- A full release build that creates a shippable product, including building apps and generating documentation.
instrumentForCoverage- Runs JSCoverage on the source tree to allow running tests with coverage information. Use the link in index.html. Currently Windows only.
jsHint- Runs JSHint on the entire source tree. If you use Eclipse, see below for how to run JSHint automatically as you develop.
runServer- Launches a Node.js HTTP server on http://localhost:8080/ for easy access to the tests, examples, and documentation. This also provides proxying for tile server providers that don't yet support CORS for retrieving tiles, which is required for use as textures. To change the port, pass
Xis the desired port.
node server.js. Pass
--helpfor usage instructions.
runPublicServer- The same as
-DrunServer.public=trueargument to allow for external connections.
makeZipFile- Builds a zip file containing all release files. This includes the source tree (suitable for use from an AMD-aware application), plus the combined and minified Cesium.js files, the generated documentation, the test suite, and the example applications (in both built and source form).
clean- Removes all generated build artifacts.
cloc- Runs CLOC to count the lines of code on the Source and Specs directories. This requires Perl to execute.
sortRequires- Alphabetically sorts the list of required modules in every
Specify the target(s) at the command line:
./Tools/apache-ant-1.8.2/bin/ant [target-name] [another-target-name] ...
For example, to build the release target and then start an HTTP server for testing, run:
./Tools/apache-ant-1.8.2/bin/ant release runServer
These steps are optional depending on your preference.
If you edit markdown files (.md) with Eclipse, installing the Markdown plugin is useful.
If you edit WebGL shader files (.glsl) with Eclipse, install GLShaders for GLSL syntax highlighting. First exit Eclipse, then download GLShaders and extract into Eclipse's dropins directory.
Most of us use Git from the command-line, but there is also an Eclipse plugin. The Eclipse package listed above includes this by default, but to install it in other Eclipse packages:
Window - Preferences: Team - Git - Configuration
Right click on Cesium in the Script Explorer. Team - Share project. Select Git, Next. Check Use or create repository in parent directory of project. Finish.
Then, to step into the test, step into