maplibre-gl-js VS sciter-js-sdk

(.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

How tiny is the output? What is the API? (I couldn't find any documentation. I thought maybe it's in the Help menu in the app itself but all I found was this https://i.imgur.com/6puOMIe.png - On that note, what level of JS is supported? As far as I can tell it uses this https://github.com/c-smile/sciter-js-sdk which is based on Fabrice Bellard's QuickJS ) Is there sound?

JavaScript & Electron Sciter!

Having normal procedural language for build automation is of course useful. That's for those 10% of cases when "standard" build DSL (make,CMake,etc.) simply do not have facilities.

But the rest of 90% tasks should have compact (easily readable) definitions.

I personally found that Premake5 has quite good balance for these tasks.

Premake files are plain .lua files and due to Lua syntax they are easily readable. And if needed you can call from them procedures defined in again Lua.

So typical project (multiplatform) definition looks pretty readable, for example one project from Sciter SDK:

https://github.com/c-smile/sciter-js-sdk/blob/main/premake5....

More details.

That's why in Sciter I've extended JSX with translation meta instruction @:

Note Tauri is full fledged Client/Server with WebView (client) is running in separate process with RPC between UI process and Rust code (Server).

For the comparison:

Standalone Sciter (scapp.exe, https://github.com/c-smile/sciter-js-sdk/tree/main/bin) takes ~8 MB of RAM (with minimal Cairo and GDI backends).

That's 20 times less than even Tauri.

WebView based solutions are not suitable for applets - small portable desktop applications.

scapp.exe ( Standalone sciter engine ) takes 45 Mb showing its default "about" document.

It does support , with limited support but still.

See: https://github.com/c-smile/sciter-js-sdk/tree/main/samples/c...

Sciter also supports immediate mode painting on any element (like in DearIMGUI):

    element.paintBackground = function(gfx) {