[Routing] Making

[Guy Martin]

Hi all,

I am working on making a routing application on mobile phone project.

The mobile application uses openstreetmap as vector map data.

I need your opinions to select one of the two approach: 

1. online routing:
the mobile application will depend on openstreetmap server to calculate the route.
It will send start node and end node to openstreetmap server. 
openstreetmap server will calculate the route and send back the route to the mobile application

2. offline routing:
the mobile application need to store routing nodes information offline and caculate the route by itself.

For approach 1:
May I know, is there any routing protocol API exist in openstreetmap server that my application can make use of it? Or I have to develop that API from scratch?

For approach 2:
I did search on the internet and found 3 offline vector map applications for mobile phone:
1. http://gpsmid.sourceforge.net --> this application is open source and has simple routing engine.
2. http://www.celumap.com.ar --> this application does not have routing engine. it is just a map render application. The author of this application is willing to providde source code for further development.
3. http://www.digitalmobilemap.com --> this application has autorouting engine. I tried the london map on my phone and it surprise me with the animated routing. However this application is not open source.

If you have the same interest in making routing application for mobile phone. We can work together. Hope to hear from you soon.

Regards,

Guy Martin


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