maplibre-gl-js VS graphhopper-maps

(.shp .gpkg ...) | ogr2ogr -> .geojson | tippecanoe -> .pmtiles

for OpenStreetMap data there's planetiler[4], and and openmaptiles[5] styles that work with Maplibre

with those combinations you've got a great start to something you can host for pennies on AWS S3+CloudFront or Cloudflare R2, with an open source data pipeline

[1] https://maplibre.org/

MapLibre GL JS v3.3.1

Does anyone else have a solution for the satellite layer? I was using MapLibre [0] then needed direct-on-the-ground images which made me convert to Google Maps.

[0] https://maplibre.org/

When using the Amazon Location Service, I recommend MapLibre GL JS, which I introduced in my previous article, "Amazon Location Service and AWS Amplify to Use Various Map Library," but you can also use any map library you like, including iTowns this time. I hope you will choose the map library of your choice, including iTowns!

Your browser has a very powerful image decoder built into it, offloading the PNG decoding into Javascript is very resource hungry.

Using maplibre (or any map viewer) you can load blobs of image data out of a tiff and use `Image` or `Canvas` to render the data onto a map.

Its even easier if the tiffs are already Cloud optimized as they perfectly align to a 1-to-1 map tile and they don't need to be rescaled, you can then just render the images onto the map. eg here is a viewer that loads webps out of a 15GB tiff and uses Canvas to render them onto a map [1]

Unless you are trying to layer all your maps together, you also could stop reprojecting them into webmercator, or if your goal is to layer them, then storing them in webmercator would save a ton of user's compute time.

There are a bunch of us that talk web maping and imagery in the #maplibre and #imagery slack channels in OSMUS's slack [2]

[1] https://blayne.chard.com/cogeotiff-web/index.html?view=cog&i...

[2] https://github.com/maplibre/maplibre-gl-js#getting-involved

The map is rendered by https://maplibre.org/, you can see how it is used here https://github.com/anvaka/map-of-github

Kudos to https://maplibre.org/ - amazing library

https://f-droid.org/packages/com.graphhopper.maps/

Unlike most OSM apps it requires an internet connection but has the advantage of an address search with auto complete and alternative routes.

Or use the website https://graphhopper.com/maps/ (disclaimer: I'm one of the founders of GraphHopper)

Both come with a custom model editor (gear button in the top left) where you can tweak the routing preferences to your liking like prefering more the official bike routes or more elevation avoidance or a slower speed etc.

https://graphhopper.com/maps/ is an amazing product that is open source, but it just does routing (with GPX download). I wish it had a little PostGIS data browser that I could write into via routes I draw on the map, or I upload (or import from other devices using something like GarminDB or similar). That, and adding arbitrary points, would be great. Just a simple, general-purpose map authoring tool. I just feel like I'm missing something, it seems like this would exist already.

Graphhopper. It has an Android client that uses its web service. You can also try out the web app.

Yes. Try it out at https://graphhopper.com/maps/

Open Source. The routing server is open source too and geocoding too.

GraphHopper might be an option as well.

Note that you can always submit a feature request here: https://github.com/graphhopper/graphhopper-maps/issues

I'm always on the lookout in this category. I prefer the KISS principle and avoid subscription bleeds. Recently found GraphHopper with a web interface and a Droid app.

There is even an experimental in-browser turn-by-turn navigation feature, which you can use with your local graphhopper service, but on a laptop you probably have no GPS and you have to use it from a phone (see the identical f-droid app for this purpose).