[mkgmap-dev] [PATCH] Access destination tag

Sun Mar 1 18:59:00 GMT 2009

On Mar 1, 2009, at 14:55, Bernhard Heibler wrote:
> my garmin routed me again through a residential area on a road that  
> is tagged as destination only. I think the "destination" check was  
> lost during the last rework of the access code.
>
> Has anybody played with the RoadNetwork.DELIVERY field until know ?  
> To me it looks like this might solve the problem. If the access is  
> totally blocked to a area the routing gets very strange. If I want  
> to go into this area I get routed via a unpaved road which is also  
> blocked. If I set the RoadNetwork.DELIVERY field the routing gets  
> more useful.

That's quite interesting! In my experiments, the access flags for  
"delivery" and "emergency" didn't behave like the other six, so if  
"delivery" is actually "destination", that'd be great.

For the record, calling these fields DELIVERY and EMERGENCY has to do  
with the cGPSmapper documentation: The RouteParams field ends in 8 bit  
flags which are named according to the vehicle types. We're assuming  
these 8 fields actually correspond to one byte in the IMG. This may be  
off, or the cGPSmapper may be inaccurate.

But having flags "no delivery" or "no emergency vehicles" on a road  
doesn't make too much sense.

Cheers
Robert