GeoEpidemics

A Geographical Information System demo for displaying epidemics data.

Live Demo

http://geo-epidemics.danx.in/

The Demo App is hosted on Heroku and the database on MongoHQ.

Architecture

The Demo consists of a HTML / Javascript client and a Ruby on Rails backend exposing a RESTful webservice using JSON format and MongoDB for data storage. The client combines tagged information about locations retrieved form the webservice with a geographical map using the Google Maps API.

Tech

• Ruby
• Rails
• CoffeeScript
• Slim
• MongoDB with Mongoid
• Google Maps API with gmaps.js
• JSON

App usage

• You can zoom in, zoom out and pan the map, like in Google maps.
• Click on an empty space on the map to insert a tagged location.
• Use the tag selection box on the bottom left corner to switch tags.
• Select the last option with a red X on the tag selection box to enter delete mode.
• Click on a location when in delete mode to remove that tagged location.
• Drag the slider on the bottom right box to change the radius of all location markers.
• Click on a tag name to show / hide all locations with that tag.