Wierd .map rendering

[victorlysak]

i'm not sure if this is because i run the code on emulator, or something else.

i have .map files in a folder and the app with vtm shows them ok.
i then delete belgium.map and england.map files
and then upload them to the device again
but when i run the app it does not want to render these two maps again
actually, as you see on the picture, it partly shows england.map but with some square ?
these are my custom .map files,
i thought that maybe there was something with my .map s, but when i uploaded these same .map files taken from mapsforge server, the app behaves the same way as you see on the picture.

does anyone knows the reason for this ?
thank you

[devemux86]

@victorlysak When we test map files from any provider with VTM samples, they always render correctly.

Better make tests with VTM samples first and then compare your code.

Also when you change the map files in the file system, if the app is running, then must reload the map.

[victorlysak]

i also tried it on the real device and i see exactly the same picture in my head unit as above (emulator) that is set to the same params: andr. 7.0 4gb ram

i also noticed that every time i zoom in or out the logcat prints
tesselation 98

i'm not sure why this is happening.

with osmdroid something like this was never the case

also,
if i want to create my custom marker, is LocationTextureLayer the right class to use for it ?

[devemux86]

if i want to create my custom marker, is LocationTextureLayer the right class to use for it ?

See the LocationTextureActivity example.

[devemux86]

As already mentioned, tests must first be done with VTM samples and the official VTM themes.

Then compare your code with the samples and study how to write map themes.

[victorlysak]

ok. so i tried

            val theme = vtmMap.setTheme(VtmThemes.DEFAULT)

// val theme = vtmMap.setTheme(
// AssetsRenderTheme(context.assets, "themes/lysaksnavi",themeFileName)
// )

and we have:

thank you

[victorlysak]

i've got good progress on the issue, but not the full solution

the issue shown in this discussion is with the .map files and how they are processed ?
or
the issue could be with the way that the overlapping .map files are rendered in vtm ?

i have 15 map files that cover europe from spain to poland and from norway to northern half of italy, all together are 2.1 gb in size (processed)

i tried my own .map files and i also tried .map files downloaded from mapsforge server - the issue exactly the same

and the issue is probably to do with the polygons

i decided to delete all of my 15 .map files from the device, ran the app, to make sure we don't have any caching issue, the map view was empty.

then i upload only one, england.map file, run the app, and all the england area shows up nicely without defects (shown above) in the map view.

then, when i add france.map and run the app,
i get broken england.map again, as before,
also when i delete all .map files, add belgium.map, run the app - belgium appears very well,
but when after that i add netherlands.map and run the app - ~half of belgium.map that is close to netherlands disappears as on the picture below:

does anyone had this before ?

does anyone know how can i add polygons to ready .map files ?

[devemux86]

For multiple maps, use a MultiMapFileTileSource as seen in the samples.

[victorlysak]

the use of MultiMapFileTileSource has solved the problem.
thank you very much