oh - well compared to gmt which does it in a second that's a big difference... On Fri, 23 Jul 2021 at 20:35, Ticker Berkin <rwb-mkgmap@jagit.co.uk> wrote:
Hi Felix
For my 1G map it takes just over a minute to extract and about the same to rebuild. The components are not altered/rebuilt.
Ticker
On Fri, 2021-07-23 at 19:24 +0300, Felix Hartmann wrote:
Hi Ticker,
thanks for your answer If the gmapsupp.img is 2GB - will this be kinda instant or will it rewrite the full gmapsupp.img from scratch?
It would be great if the standard mkgamp.jar could include that typ change functionality (I guess this could be easy to add - as mkgmap knows how to build the gmapsupp.img - maybe Andrez could help/add here ot have the most needed functionality of gmt for end users available for Mac?
On Fri, 23 Jul 2021 at 19:06, Ticker Berkin <rwb-mkgmap@jagit.co.uk> wrote:
Hi
The mkgmap / display tool has a function to extract all the components from a gmapsupp.img and another function to take components and build a composite image.
You'll need to get the sources from svn - see:
https://www.mkgmap.org.uk/mkgmap/display
and build it.
In an empty directory, my unix command to extract is
$ java -Xmx1540M -ea -classpath \ /myMkgmap/display/trunk/build/classes:\ /myMkgmap/svn/trunk/build/classes:\ /myMkgmap/svn/trunk/lib/compile/fastutil-6.5.15-mkg.1b.jar:\ /myMkgmap/svn/trunk/lib/compile/osmpbf-1.3.3.jar:\ /myMkgmap/svn/trunk/lib/compile/protobuf-java-2.5.0.jar \ test.ExtractFile ../gmapsupp.img
Adjust paths as necessary to reference the display build and your standard mkgmap build.
To reconstitute, adjust the contents of the folder to have the new TYP, then use the same command as above but replace the last line with, eg: test.ZipFile ../newgmap.img *
This will probably change the order of the components and I've no idea if this matters, but, if it does, give an explicit list, derived from the output of ExtractFile, instead of *
Ticker
On Fri, 2021-07-23 at 16:08 +0300, Felix Hartmann wrote:
Hi - is there any tool available to change the .typ-file in a gmapsupp.img on the Mac OS X Big Sur or newer?
As gmt_osx is not gonna be updated to x64 - I wonder if there is an alternative. Or maybe could this function be added to mkgmap?
I would imagine a call java mkgmap.jar --change-typ gmapsupp.img newtyp.typ (so remove all existing .typfiles in the gmapsupp.img and replace them with newtyp.typ - for gmapsupp.img consisting of several maps this would be more complicated - I do not feel that is needed).
Plus maybe the option to join several gmapsupp.img files into a new bigger one (only important for very old devices).
-- Felix Hartman - Openmtbmap.org & VeloMap.org
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-- Felix Hartman - Openmtbmap.org & VeloMap.org
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-- Felix Hartman - Openmtbmap.org & VeloMap.org