map-background for Multilingual v4 maps, e.g. Rheinland-pfalz

Started by karlchick, May 01, 2020, 23:53:46

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I've been testing out my partially completed  v4 theme and tried it with the ML v4 Rheinland-pfalz map. This map appears to behave differently from others I tried. On this map the map-background set in the rendertheme tag is used for most of the background.

This is not a major problem for most themes, except for my theme which relies on k="natural" v="nosea|land" being used to provide full coverage of land because the theme uses a darker background for the "night mode" card.

Attached are a couple of screenshots showing map-background set to #800000 and the other #f8f8f8 using my theme so far. However for night mode I need the background to be #373737.

I also tested map-background on OutdoorV4 and got the same results.

Anyone else spotted this on some maps?

Is there a way of varying the background on maps like these? or is the map-background setting always used. If this is the case, then I will have split my OS Map theme for v4 into two separate themes, one for day and one for night...
Author of the OS Map theme.


No replies so far.. perhaps I should rephrase the question:

It looks to me that this specific map has no background layer/way for land, i.e. natural=nosea or natural=land.

Perhaps because it is land-locked area with no sea it didn't get generated into the map...?

Can I assume that all maps should have a 'way' that covers every single part of the map area?
If yes, then why:
   - have a map-background tag in the renderTheme rule
   - does it mean this specific map has an error and is missing a "background" land way?
If no:
   - This would mean that I really must split the OS Map theme into two, one a part for day and one for night (I'd prefer not too...)

Author of the OS Map theme.


I think you need to ask on the OpenAndroMaps forum or wherever your v4 map came from.

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