How to implement Routing in openlayers

Question

I need to add routing functionality in my application how to add the routing in openlayers.

Answer 1

There's an introduction to using pgRouting with OpenLayers here: http://pgrouting.org/docs/foss4g2007/index.html

For further information you may also wish to see this question and answer: http://stackoverflow.com/questions/6794996/openstreetmap-data-with-openlayers-vs-google-maps

Answer 2

You can use PostGis database with pgRouting library. Here is a nice tutorial for beginers on how to use pgRouting: http://underdark.wordpress.com/2011/02/07/a-beginners-guide-to-pgrouting/

Here you have some more detailed information on how pgRouting functions work, it might be helpfull: http://www.davidgis.fr/documentation/pgrouting-1.02/