[mkgmap-dev] naming map layers in a gmapsupp.img

Tue Dec 22 18:03:56 GMT 2009

On 22.12.2009 17:25, Ralf Kleineisel wrote:
> On 12/22/2009 03:38 PM, Charlie Ferrero wrote:
>
>    
>> Bear in mind that before this merge step, I've already built the various
>> tiles .img files and set the description, area-name, family-name
>> correctly (and verified this by making a gmapsupp.img for each layer
>> individually).  So it seems unnecessary to have to do it again at the
>> point of merging the layers into one final file.
>>      
> It isn't. E.g. the FID is not saved in the individual .img files, only
> in the gmapsupp.img and .tdb file.
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>    
The most important change would be something like at least 2 points for 
every 500m. Otherwise break the line and don't draw the straight section.
This would "get rid" of the artifacts seen in places with data holes.

Would be great ending with contourlinemaps without all those "straight 
lines" crossing. Currently one has to clean up in mapedit afterwards and 
recompile from mp (and the more wrong lines you want to get rid of, the 
more "good information" is also missing if you don't divide the lines 
but just mass select and delete).