world-geojson
geolib
world-geojson | geolib | |
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1 | 3 | |
228 | 4,150 | |
- | - | |
6.9 | 5.7 | |
5 months ago | 7 days ago | |
JavaScript | JavaScript | |
GNU General Public License v3.0 only | MIT License |
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world-geojson
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How to find out in which country a user is, based on his lat/long GPS coordinates?
What I would do now, is; use this library https://github.com/georgique/world-geojson load the polygon GPS lat/long data into postgresql or dgraph, and then just query in which country the coordinate/user is. BUT I need it in production, and I already know that I will run into problems and spend time to fix them and so on. And maybe performance will suck and I gotta spend time fixing that too.
geolib
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Am I thinking about geolocation/DB storage correctly?
Hey all, I'm currently using Expo's location plugin. This gives the user's latitude and longitude, which I'm storing in a Firebase Firestore document. I want to have a functionality where a user can select a distance radius (say, nearest kilometer, nearest 10 KM, and a global option which shows all) compared to the user's current location and show all available data within it. There's a library called geolib which can calculate the metered distance between two points. This is great, however I'm having trouble trying to think about how to query for these objects. I don't want to query ALL the documents and then filter down the documents based on their location on the FE, which means I'd probably need to query the backend for this specific data. This is where I'm running into some trouble. I'd basically have to have a firebase compound filter where I'm calculating the distance between the user's current location and +10 miles on the FE. Can somebody shed some light on this approach? I'm thinking: 1. Get users point 2. Calculate an arbitrary point that is essentially 10km away from users point (mathmatically?) 3. Query Firebase Firestore backend for results within that latitude/longitude. It just seems really complicated, and I'm wondering if I'm doing something wrong.
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Show HN: America – Road Trip Simulator
Thanks for trying it out!
The frontend is built with Svelte. This was my first time using the framework and I found their website super helpful: https://svelte.dev/docs
Used Mapbox API and geolib (https://github.com/manuelbieh/geolib/) for building routes and for other geospatial tasks.
"Talkie" was built with simple-peer (https://github.com/feross/simple-peer) and WebRTC. Great tutorial can be found on MDN: https://developer.mozilla.org/en-US/docs/Web/Guide/API/WebRT...
On the backend I use Vercel's serverless functions which are mostly acting as trivial proxies for various open API's.
Feel free to email me if you need more info.
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Recommendation for geo TS library for FE for geo calculation like calculating distance between two latitude/longitude in meters/km for frontend etc?
Is it https://github.com/manuelbieh/geolib? Asking just so that I don't endup in wrong place? Also how does it compare with https://github.com/Turfjs/turf (incase you know) as turf.js has more stars, has more recent commits compared to geolib? Let me know what do you think
What are some alternatives?
historical-basemaps - Collection of georeferenced boundaries of world countries and cultural regions for use in mapping historical data on global or continental scale
turf - A modular geospatial engine written in JavaScript and TypeScript
geoguessr-tips - Tips and resources for GeoGuessr
countries - World countries in JSON, CSV, XML and Yaml. Any help is welcome!
osm-static-maps - Openstreetmap static maps is a nodejs lib, CLI and server open source inspired on google static map service
world-countries-centroids - Center points of world countries - CSV and GeoJSON
simple-peer - 📡 Simple WebRTC video, voice, and data channels
geobed - A simple, lightweight, embedded geocoder for Golang with city level accuracy
kandilli-rasathanesi-api - Kandilli rasathanesinin son dakika depremler ve tarihe göre deprem listesi için ara API (last minute earthquakes in turkey)
geodesy - Libraries of geodesy functions implemented in JavaScript