Hey guys. I need to know, and as quickly as possible, if what I need is achievable.

I need to be able to, using either V2 OR V3 (preferably 3), create paths which ignore buildings in a sense.

I was trying to create even a kml file to draw out all of the paths myself, and then find some way to turn them on/off as needed.

For example. The user wants to go from point A to point B. Between these points is a number of buildings. The user physically CAN walk through these buildings(it's a campus). I want to show them that on the map.

This way you don't have to do a loop-de-loop around, say, a parking lot, just to get to the other end of it.

If there is ANY way AT ALL to do this, I'd love to know.

An example of what I require can be found here: http://www.uottawa.ca/maps/

It's all pre-determined paths based on the two inputs from the user into the dropdown menu. I can plainly see this. But I have no clue if a) this can be done in v3, and b) how on earth they did it themselves.

Assistance required, and greatly appreciated!