This is an example of Webgl picking data points on a google map using readPixels. Pedro Sousa's Displaying WebGL data on Google Maps was very helpful. Mouseover a point to see the city name.

Live demo: http://codepen.io/mikefab/full/yhEfu/

Server:

Haml Coffee Sinatra

This is an example Sinatra application based on the Sinatra Asset Pipeline example application to show the usage of Haml Coffee Assets.

Run the app

Clone the app, switch to the directory and run:

bundle install
bundle exec rackup

Now visit http://http://localhost:9292/ top see it in action.

Compile client side templates

This example uses Guard with Guard Sprockets2 to compile the client side templates.

Run guard with:

bundle exec guard