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[mkgmap-dev] Combining img files to a single map

From Harri Suomalainen hsuomal at welho.com on Wed Nov 2 14:44:00 GMT 2022

Yes, I've been trying to combine multiple gmapsupp files. I have a 
workflow that makes uses mkgmap to make several files from the same 
splitted files using "mkgmap -gmapsupp ..."

How does one combine tiles when there are multiple styles used with same 
source tiles? Compile without -gmapsupp option and then combine multiple 
.img -files? (Are there restrictions like should they be same family or 
whatever, as long as different mapname/id?)

At the moment I have tiles, use mkgmap with some style and then run 
mkgmap with another style to make overlay like arrows for oneway streets 
and I need to combine that kind of results.

On 1.11.2022 20.11, Gerd Petermann wrote:
> Hi Harri,
> you seem to try to combine different gmapsupp files? I think this is not supported by mkgmap.
> Why don't you combine the wanted tiles instead?
> Gerd
> ________________________________________
> Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag von Harri Suomalainen <hsuomal at welho.com>
> Gesendet: Dienstag, 1. November 2022 14:09
> An: mkgmap-dev at lists.mkgmap.org.uk
> Betreff: [mkgmap-dev] Combining img files to a single map
> I'm had problems combining different maps to a single file with mkgmap
> (latest version but this has been a long term problem)
> What are the requirements for combining? I seem to not find any
> documentation about it other than that mapname should be different on files.
> I'm generating multiple files, all with different family-id, product-id,
> mapname and map description. They all use different typ-files matching
> the file family/product-id of the compiled map.
> Combining with gmaptool (command-line on linux) has been successful with
> "./gmt -jo gmapsupp.img basemap.img fixme.img oneway.img". (Using a very
> old 2015 version, just because I have had it installed)
> Combine attempts with like "java -jar mkgmap/mkgmap.jar --gmapsupp
> basemap.img fixme.img oneway.img" give very small files and I get
> warnings like "WARNING (global): Could not copy MAKEGMAP.MPS
> uk.me.parabola.imgfmt.FileExistsException: File MAKEGMAP.MPS already exists"
> What is the correct way to go? (Only my basemap has routing information,
> other files are overlay info like fixme marking, oneway arrows and similar)
> Chears, Harri
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