h3
mapbox-gl-js
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| h3 | mapbox-gl-js | |
|---|---|---|
| 21 | 13 | |
| 4,588 | 10,697 | |
| 2.1% | 0.7% | |
| 7.1 | 9.8 | |
| 20 days ago | 6 days ago | |
| C | JavaScript | |
| Apache License 2.0 | GNU General Public License v3.0 or later |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
h3
- H3: Hexagonal hierarchical geospatial indexing system
- Evaluation of Location Encoding Systems
- Not sure if this is the worst or most genius indentation I've seen
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A population density map of the state of Pennsylvania
It looks like the base Kontur dataset uses H3 resolution 8, and there’s a lookup table here. “400m” seems to refer to the edge length (which averages to 461m).
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[ANN] HexTree: geographical region-to-value mapping
I can speak to quadtrees, but the primary reason for using this is that you need a geographic "dictionary" (not using the word map to avoid confusion with charts), and you're perhaps already using the H3 hexagonal grid system.
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What's everyone working on this week (34/2022)?
HexSet: is a way of storing a set of H3 cells in a tree, and doing fast (2-20 ns on my 2013 trashcan Mac Pro) membership tests. You must first convert the input data (e.g. GeoJSoN polygon) into H3 cells.
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Surprising result while transpiling C to Go
> What an amazing tool that can completely change function names when it converts from C to Go.
How can one read the code of the benchmark, then switch into virulent sarcasm mode without trying to understand the code? And seeing "+1" comments without any effort to understand is also disheartening.
The blog post had a link about the Go helper functions the author used. It lands on https://github.com/akhenakh/goh3/blob/main/h3.go This shows that the `FromGeo()` function used by the Go benchmark is a helper that calls transpiled functions. The benchmark code itself was of course not transpiled, so the sarcasm was unneeded and wrong.
If anyone wants to dig in deeper, the C function `latLngToCell()` calls 2 functions, see https://github.com/uber/h3/blob/master/src/h3lib/lib/h3Index...
- Completely ignorant Newbie needing help with launching Ubers H3 Software.
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Anyone doing geospatial queries? NoSQL? Amazon Location Service?
Uber just released their library to perform geospatial indexing - https://h3geo.org/. This might be an useful building block for you.
mapbox-gl-js
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Brave browser simplifies its fingerprinting protections
Good. Brave's fiddling with WebGL causes >50% of my bug reports from 1% of users.
[1] https://github.com/mapbox/mapbox-gl-js/issues/10518
[2] https://github.com/mapbox/mapbox-gl-js/issues/8377
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What is the tech stack for MapGinie dot IO?
Laravel and Mapbox GL JS
- [OC] 20 years of forest loss in South East Asia - INTERACTIVE
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Getting Started with MapLibre GL JS
It originated as an open-source fork of Mapbox-gl-js before they switched to a non-open-source license on 8th December 2020.
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75% of Nova Scotia's population lives in the red areas
Do you have programming skills? MapboxGL JS is a great library for stuff like this, you can really easily add a layer of GeoJSON data to a map. If you're looking for something less technical Google map lets you create custom maps where you can add a bunch of pins.
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Experimenting with Mapbox GL JS's upcoming globe projection
From the latest commits (not released/stable yet): git clone https://github.com/mapbox/mapbox-gl-js.git yarn install yarn run build-prod-min yarn run build-css Then use the generated mapbox-gl.js and mapbox-gl.css files. See CONTRIBUTING.md for more details.
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Reimagining projections for the interactive maps era
> too bad it doesn't come with some code
Mapbox changed the license of their code last year I think to a proprietary one. https://github.com/mapbox/mapbox-gl-js/blob/main/LICENSE.txt
It requires a mapbox user license with billing enabled to use this code, let alone make modifications. But the source is viewable on github.
- I built an app that maps out crime statistics
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MapLibre GL is a free and open-source fork of mapbox-gl-JS
The software stopped being open source from v2 onwards. The new licence makes it merely shared source.
This GitHub issue where this change is announced provides a number of more in-depth explanations why this is a bad thing for most users of the software: https://github.com/mapbox/mapbox-gl-js/issues/10162
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Ask HN: What Are You Working On?
It's a bummer mapbox isn't open source anymore, now you're (and lots of other peoplare) are stuck pre-2.0.0 :(
https://github.com/mapbox/mapbox-gl-js/blob/main/CHANGELOG.m...
What are some alternatives?
S2 geometry - S2 geometry library in Go
maplibre-gl-js - MapLibre GL JS - Interactive vector tile maps in WebGL2
Leaflet - 🍃 JavaScript library for mobile-friendly interactive maps 🇺🇦
cesium - An open-source JavaScript library for world-class 3D globes and maps :earth_americas: [Moved to: https://github.com/CesiumGS/cesium]
starlink-coverage - Calculating some statistics about Starlink satellites
ffprobe-wasm - A Web-based FFProbe. Powered by FFmpeg, Vue and Web Assembly!
s2geometry - Computational geometry and spatial indexing on the sphere
tangram - WebGL map rendering engine for creative cartography
martin - Blazing fast and lightweight PostGIS, MBtiles and PMtiles tile server, tile generation, and mbtiles tooling.
Cesium - An open-source JavaScript library for world-class 3D globes and maps :earth_americas:
electron-browser-shell - A minimal, tabbed web browser with support for Chrome extensions—built on Electron.