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[mkgmap-dev] Base map interfering with routing

From Paul news at pointdee.co.uk on Sun Feb 6 22:51:43 GMT 2011

I can't answer your question but I can say that I removed the base map
from my 605 months ago. If it doesn't exist it can't be used and the
base map on my 605 was practically useless anyway



On 06/02/11 20:03, Marko Mäkelä wrote:
> When I tested routing after moving most points to resolution 24, I hit a 
> big surprise. I let my Edge 705 calculate the route to this 
> shop=organic:
> http://www.openstreetmap.org/browse/node/370814886
> To my great surprise, Garmin used the base map for computing the route, 
> no matter which mode of transportation I chose. I thought that maybe my 
> map tile has grown too big, but splitting it into three did not help.  
> Then, I tried routing to some nearby points, such as the bus station 
> http://www.openstreetmap.org/browse/node/59967454, and that worked. I 
> can navigate to that point even when using a single map tile.
> I wonder what is causing this? That the shop=organic could be located 
> exactly on a way on the basemap? One more interesting point is that I 
> did this calculation in demo mode, from about 
> http://www.openstreetmap.org/?lat=60.3491678&lon=25.1092643&zoom=18.  
> When the route used the base map, this position jumped to about 
> http://www.openstreetmap.org/?lat=60.3473225&lon=25.1271307&zoom=18 
> which was close to the way (ref=140) on the basemap.
> I have successfully calculated a route to the shop before, but that was 
> with an older basemap. The old basemap displayed a toilet symbol near my 
> house; that's why I know. :-)
> Regards,
> 	Marko
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