Even if I load a theme file with nothing in it, it doesn't seem to matter.
I have worked out a set of typ codes for the roads and trails that work.  
Now I'm looking at points (POI), and I'm getting almost nothing on the Zumo.   The only POI I'm getting is a WC using the Openfietsmap_full style & mapnik typ.  

Ticker Berkin posted a while back about a test map,  this sounds useful, so I generated a map with this:
java -jar ~/Apps/Mkgmap/mkgmap-r4565/mkgmap.jar --gmapsupp --verbose --order-by-decreasing-area test-map:all-elements ~/Apps/Mkgmap/mkgmap-r4565/examples/typ-files/sameOrder.txt
But I must be missing something because that doesn't show any POI's on Qmapshack on my desktop, and the polygons are messed up. 
Is this feature documented anywhere?

Any help is appreciated.


On 7/31/20 1:08 AM, Felix Hartmann wrote:
Yes delete (backup before) the map themes file, it's overriding the .typ
However there is an only editor for it somewhere, forgot the location right now.

On Fri, 31 Jul 2020, 05:58 brad <bradhaack@fastmail.com> wrote:
I took a look at those, thx.     Unfortunately they don't really tell you what feature you're editing if you've created a map with mkgmap.   typwiz is a windows program, which doesn't work for me.

What I determined is that these typ codes don't work :
    0x2c, 2f, 10101, 2d, 33
These work as expected: 0x2a, 0x02, 0x01, 13

The theme file has names such as MAP_PLTCL_INTL_CLR, MAP_ROAD_RESIDENTIAL_CLR and MAP_ROAD_RESIDENTIAL_CLR.   Perhaps these  translate to a typ code, and overwrite what is coded by mkgmap?   


On 7/25/20 9:14 AM, nick wrote:

Have a look at 

www.javawa.nl

or

https://www.pinns.co.uk/osm/theme_editor.html

Although themes are text files, Garmin is particularly fussy about certain text characters and a surplus of spaces. When you modify them manually

you may find the theme is not recognized.

To a certain extent it is a matter of trial and error when converting a typ file to a theme, ie the theme only recognizes a limited number of types.

Typwiz6 can convert TYP files to themes - there may be others

Themes are saved in Garmin/themes folder

Good Luck

Nick


On 25/07/2020 15:37, brad wrote:
I was successfully building maps for a Montana with my own style. Since the Montana died, I replaced it with a Zumo XT.   It isn't working so well now.   I can use my map on qmapshack and it looks as expected, but on the Zumo it appears that Garmin does not recognize some (or all) my custom type codes.   Any ideas what the limitations are,  or how to work with this?   They've added something called 'Map Theme', which is a small xml file.   I don't see a way to load my typ file, but I didn't need to do that before since I included that with the mkgmap build.
Brad

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