Hi,

This is not a bug report, but something I found interesting.

I recently noticed a problem with polygon draw order in Mapsource; and on my 
Dakota 20. Sometimes a polygon was drawn correctly above another (according 
with the draw order specified in the TYP file), and at other times not. I don’t 
believe mkgmap actually processes the TYP file so I did not report it here. 
This morning I was playing with drawing dark lines around polygons to “fix” 
this, but found mkgmap created a 28000+ Kb file that was too large for 
Mapsource to show. When I reduced the –max-nodes option to produce smaller 
tiles I noticed it fixed some, but not all of the polygon draw order problems. 
So I reduced it further (from the original 1500000, to 750000) and found it 
fixed all the draw order problems I had noticed.

>From previous posts and experience, I knew there was a problem routing across 
>tile boundaries (which is why I had been using 1500000 to reduce the number of 
>tiles produced, and thus the boundaries). So I found an area where 4 tiles met 
>close to each other, and tried auto-routing across the boundaries in 
>Mapsource. To my surprise reducing the max-nodes had now fixed this problem as 
>well, and I could route anyway I liked E->W, W->E, N->S, S->N across the four 
>boundaries. Auto-routing also worked fine on my device as well 

So if anyone is experiencing similar problems; I suggest trying to reduce the 
max-nodes and seeing if that helps.

Geoff. 

<<wlEmoticon-smile[1].png>>

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