Hslayers-ng mapping library

Getting Started

To get you started you can simply clone the hslayers-ng repository and install the dependencies:

Prerequisites

You need git to clone the hslayers-ng repository. You can get it from http://git-scm.com/.

If you dont plan to develop hslayers-ng, dont want to run tests and and server files through npm managed http server, then you can skip all the following npm related steps.

We a number of node.js tools to initialize and test hslayers-ng. You must have node.js and its package manager (npm) installed. You can get them from http://nodejs.org/.

Clone hslayers-ng

Clone the repository where your webserver can access it using [git][git]:

git clone git+ssh://[email protected]/hsrs/hslayers-ng
cd hslayers-ng/

Install Dependencies

We have two kinds of dependencies in this project: tools and angular framework code. The tools help us manage and test the application.

We have preconfigured npm to automatically run bower so we can simply do:

npm install

Behind the scenes this will also call bower install. You should find that you have two new folders in your project.

• node_modules - contains the npm packages for the tools we need
• bower_components - contains the angular framework files

Configure the application

Copy the application configuration (template) files to the actual files.

cp app.js.template app.js
cp hslayers.js.template hslayers.js

Hslayers.js file contains the paths for the different modules and is the starting point of the js application. Set the hsl_path variable on top of the file to your hslayers-ng directory. The path should be relative to your www root or the html file where you load hslayers.js file.

App.js file is where you specify which hslayers modules will be loaded for your speciffic application, which map layers will be displayed and other configuration parameters. You can also write some startup code here to load some map service or open some initial panels etc.

Include in your html file, where the map should appear. Check the paths to the js files.

<div hs ng-app="hs" ng-controller="Main" style="position: relative;"></div>
<script src="bower_components/jquery/dist/jquery.min.js"></script>
<script src="lib/require.js"></script>    
<script src="hslayers.js"></script> 

Some example html files are provided in the examples directory. The template app.js uses some png files for layer groups which are also included in the examples/armenia directory.

For providing proxy functionality we use a simple cgi script, which you have to copy from lib/hsproxy.cgi to your cgi-bin directory. It might be located in /usr/lib/ if you use apache.

cp lib/hsproxy.cgi /usr/lib/cgi-bin/hsproxy.cgi

To enable cgi on ubuntu, use

sudo a2enmod cgi
sudo service apache2 restart

Run the Application

We have preconfigured the project with a simple development web server, but you can always use a different web server.
The simplest way to start this server is:

npm start

Now browse to the app at http://localhost:8000/.

Testing

There are two kinds of tests in the hslayers-ng: Unit tests and End to End tests.

Running Unit Tests

The hslayers-ng app comes preconfigured with unit tests. These are written in [Jasmine][jasmine], which we run with the [Karma Test Runner][karma]. We provide a Karma configuration file to run them.

• the configuration is found at test/karma.conf.js
• the unit tests are found in test/unit/.

The easiest way to run the unit tests is to use the supplied npm script:

npm test

This script will start the Karma test runner to execute the unit tests. Moreover, Karma will sit and watch the source and test files for changes and then re-run the tests whenever any of them change. This is the recommended strategy; if your unit tests are being run every time you save a file then you receive instant feedback on any changes that break the expected code functionality.

You can also ask Karma to do a single run of the tests and then exit. This is useful if you want to check that a particular version of the code is operating as expected. The project contains a predefined script to do this:

npm run test-single-run

End to end testing

The hslayers-ng app comes with end-to-end tests, again written in [Jasmine][jasmine]. These tests are run with the [Protractor][protractor] End-to-End test runner. It uses native events and has special features for Angular applications.

• the configuration is found at test/protractor-conf.js
• the end-to-end tests are found in test/e2e/

Protractor simulates interaction with our web app and verifies that the application responds correctly. Therefore, our web server needs to be serving up the application, so that Protractor can interact with it.

npm start

In addition, since Protractor is built upon WebDriver we need to install this. The hslayers-ng project comes with a predefined script to do this:

npm run update-webdriver

This will download and install the latest version of the stand-alone WebDriver tool.

Once you have ensured that the development web server hosting our application is up and running and WebDriver is updated, you can run the end-to-end tests using the supplied npm script:

npm run protractor

This script will execute the end-to-end tests against the application being hosted on the development server.

Updating Angular

You can update the tool dependencies by running:

npm update

This will find the latest versions that match the version ranges specified in the package.json file.

You can update the Angular dependencies by running:

bower update

This will find the latest versions that match the version ranges specified in the bower.json file.

Contact

[email protected]