I've read several discussions in the forum around creating a local WMS map server to support offline use of the node-red-contrib-web-worldmap node. The author recommended the use of mapserver in his node documentation. I have tried this approach, but given my "limited" skill set it became a major l…

You'll need to speak nicely to @dceejay who is the author of the worldmap node. As I've cruelly tagged him, you never know, he might just magically appear :grin:

Thanks very much for that. All help is welcome.

Hi, That seems to just be adding a cache so you would still need to populate it somehow. Did you see the other options in the docs ? eg running a map server under docker - there are several versions available. What source of maps do you have available ?

Thanks for the quick response. Again with my limited understanding I thought that it would take the tiles that are downloaded with Leaflet by your node e.g. request URL: https://b.tile.openstreetmap.org/15/9128/11990.png and selectively cache them in the local database if you add the useCache opti…

BTW my application will run in a location with limited or no internet access and the mapping area would be quite small as would the number of tiles I need to cache. Also would only need to do for one layer.

I had previously followed the steps in your document, as best I could, of installing MapServer and creating a mapserv executable in my /home/pi/.node-red/node_modules/node-red-contrib-web-worldmap directory . I had also downloaded the same tiles you referenced above and used something called mbutil …

Well I'm sure your suggestion would work - but would be harder than downloading that mbtiles file into a directory and then running docker run --name maptiler -d -v $(pwd):/data -p 1884:8080 maptiler/tileserver-gl -p 8080 to have it serve maps of port 1884... eg [image]

[image] dceejay: docker run --name maptiler -d -v $(pwd):/data -p 1884:8080 maptiler/tileserver-gl -p 8080 Well I gave it a shot but nothing is ever easy :slight_smile: Foiled again I'm afraid. Docker image maptiler/tileserver-gl failed with: "no matching manifest for linux/arm/v7 in the m…

As a temporary solution I modified your Worldmap index.html and worldmap.js to support local caching in the browser using Indexed.db. I added a button in bottom right corner which will seed the local cache down to zoom leveI 16 for the current viewport and basemap. I found that going down to zoom 1…

Node-red-contrib-web-worldmap - Local mapserver alternative

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dceejay 7 March 2023 22:53 7

If you don’t mind 2017 data then you can get decent MBTiles sets from Ontario OpenStreetMap Tiles, GeoData and OpenData Maps | MapTiler Data And use the docker container in my readme to serve them.

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Node-red-contrib-web-worldmap - Local mapserver alternative

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