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[mkgmap-dev] next steps in routing

From Steve Ratcliffe steve at parabola.demon.co.uk on Sun Nov 30 23:21:28 GMT 2008


On Sun, Nov 30, 2008 at 09:48:09PM +0100, Robert Vollmert wrote:
> what are your thoughts on what to look at next regarding routing?

I see crashes in MapSource if there are more than two roads that join a
single road.  But that may take a long time to track down, so I wouldn't
worry about it if you don't see those kinds of problems elsewhere.

So the next step is to implement multiple route centers and then routing
between maps.  A simple three step plan!

> Considering that my small sample maps now route fine, is it time to go  
> towards bigger routable maps?NOD 1 with multiple RouteCenters, in  
> particular, is something I'd like to give, but I wouldn't want to  
> duplicate work.

Yes just go ahead, I won't be working on that in the near future.

> An issue my small sample still has is that when moving the cursor over a 
> road (on my Vista HCx), the unit rarely pops up the name. If it does, I 
> can also click the road, otherwise it says there's no information about 
> this point. Do you know which part of the IMG is responsible for this? 
> NET?

I think that you always get the name just with the basic three sections.
There is a problem with the backing areas - even though they do cover the
whole map, they are not always recognised.  You only get pop-up when the
backing area is in place and recognised.

I don't know what the problem is.  It could be that there are just too many
backing areas.   They shouldn't really be split up so much.


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