[mkgmap-dev] Really Serious bug when not using --route

Thu May 27 12:12:20 BST 2010

> Setting the fourth via gmaptool breaks the routing for routable maps 
> even though it should be there for setting maps tranparent/opaque is 
> some obscure way different from the general transparent/opaque flag
>   
>
Could this be the exactly the NOD flag?
If modifying this flag breaks routing then this IS a strong hint for 
influencing routing. Could it be that in this byte one bit is the flag 
for the presence (or absence) of the NOD table? If this bit is 
set/cleared then it tells the device that there is no NOD table and 
therefore no routing is possible.