GIS, Geolocation
Links to location related stuff.
Apps
Randonautica
Discover a random spot around you.
Mapify
Instagram for travel - Startup. Not bad, but too stylish. Nice to bookmark some places.
Maps.me
Offline maps that was good once.
Furkot
PWA to plan tours. A bit slow and weird UX, but it's all possible in the browser!
Linklists
Lists
- sshuair/awesome-gis: Awesome GIS is for collecting the GIS related sources, including cartographer tools, geoanalysis tools, developing tools, data, conference & communities, news, MOOC's course, some amazing map site, etc.
- User:Grin/bookmarks - OpenStreetMap Wiki
- Top 19 geovisualization tools, APIs and libraries that will let you create beautiful web maps - Geoawesomeness
Contentprovider
POIs, Hikingtrails
- outdooractive.com • Europe's largest outdoor platform 💲
- Komoot Discover | Routes and Must-Sees Where You Are
- AllTrails - Outdoor Guides | Hiking, Camping, Trail Running, Dog Friendly Trails 🇺🇸 💲
- Toursprung Maptoolkit - Toursprung 💲
- Walking Routes - OpenStreetMap Wiki ?!
- Foursquare API for Business and City 💲
- melitele/byways: Content of the closed
byways.org🇺🇸 💡 - Oddities - A Waymarking.com Category - groundspeak/geocaching.com related
- Waymarking Mobile
- Triposo - API using Voyage Wiki and other Free Data
- GeoNames Database with POI, Wikipedia Data etc. 💡
- WIWOSM - OpenStreetMap Wiki
- Archive.org - 🎈 Public Lab: Does anyone know someone at Archive.org who can enable CORS for images of Harvey pollution? - https://archive.org/help/json.php
- Demo GeoNetwork server - GeoCat B.V.
- Chicago City Guide | CitySeeker just big cities, nothing special
- World-wide Ancient Site Database, Photos and Prehistoric Archaeology News with geolocation : The Megalithic Portal and Megalith Map: - use from wikipedia instead
- Großsteingräber und Megalithbauwerke - Startseite interesting but not open (c) https://www.google.com/maps/d/u/0/viewer?mid=1Yimj5phJ30XYUBJIu_7BH8yU_6c&ll=54.46166044314363%2C12.658709190307604&z=9
Travelplaner and Portals
- Mapy.cz API
- Destination Insights with Google
- Mapify - Instagram like travel stories (2021-04-12 Future unclear)
- Tripline travel stories, straight forward
- Historypin - Connecting communities with local history - Historypin is a place for people to share photos and stories, telling the histories of their local communities.
Mapping Services
- Protomaps - The open source map in a file
- Mapy.cz API - good Service, static maps
- OpenStreetMap 💡
- [Bing]
- Google My Maps 💲
- Apple Maps on the Web - Maps- Apple Developer 💲
Libraries
- Leaflet - a JavaScript library for interactive maps
- Turf.js | Advanced geospatial analysis
- thephpleague/geotools: Geo-related tools PHP 5.4+ library built atop Geocoder and React libraries
- anthonymartin/GeoLocation.php: Retrieve bounding coordinates and distances with GeoLocation.php - calc bounding box
- bjorn2404/jQuery-Store-Locator-Plugin: A store locator plugin using Google Maps API version 3
- kobesin/GeoConvert: Converting between Geojson and GIS file formats
Leaflet Plugins
- protomaps/protomaps-leaflet: Lightweight vector map rendering + labeling and symbology for Leaflet
- wbkd/leaflet-swoopy: Swoopy Arrow Plugin for Leaflet
- epicbit/leaflet-data-markers: Extends L.divIcon to add data attributes.
- makinacorpus/Leaflet.Snap: Enables snapping of draggable markers to polylines and other layers
- maximeh/leaflet.bouncemarker: A plugin for Leaflet to have a bounce animation when adding a Marker to a map
- ewoken/Leaflet.MovingMarker: A Leaflet plug-in to create moving marker
- stefanocudini/leaflet-layerJSON: Build dynamic JSON Layer via Ajax/JSONP with caching
💬 offers quick results. Caching is quite simple. - labs is created by Stefano Cudini to demonstrate and test his own projects and works.
- allartk/leaflet.offline: Leaflet offline layer
- A Modern Leaflet Toolbar
API, Data
- Overpass API - query detailed location data like bars, churches etc.
- Overpass API - OpenStreetMap Wiki / API by Example
- overpass turbo - create queries for Overpass API
- OpenStreetMap Nominatim: Search - OSM Geocoding
- Photon, search-as-you-type with OpenStreetMap - OSM Geocoding
- AirMap Developers - Drones and Airtraffic Data (AirMap API | ProgrammableWeb)
- Spatial.ai - Neighborhood API (whats around right now?)
- GDELT GEO 2.0 API Debuts! - GDELT Blog - Map Search Queries for news or other topics
- Waymarked Trails - Hiking
- POI Factory | GPS and other interesting topics
- Google My Maps
- Historic Place 💡
- HistOSM 2 - HistOSM is a WebGIS application to visually explore historic objects stored in the OpenStreetMap database. Your visual exploration process is supported by dynamically created statistics showing the top most used object categories in the current map view extent. The diagram itself can be used to filter the objects on the map to a specific value by clicking on a category.
- Wikipedia:WikiProjekt Georeferenzierung/Anwendungen – Wikipedia
- Wikipedia:WikiProjekt Georeferenzierung/Hauptseite/Wikipedia-World/en – Wikipedia
- geojson.xyz fast access of GeoJSON data for web mapping examples and experiments.
Tools
- Geofabrik Tools Map compare, debugging, overlay
- GeoHash Area Check Tool
- tomscholz/geojson-editor: A modified version of Googles Simple GeoJSON Editor
- geojson.io Leaflet-based Geojson Editor
- OpenStreetBrowser - Max Speed Roads
Social
- KeplerJs is a open source geosocial solution that lets users share favorite places and join discussions in real-time. It can be seen as a platform where users can interact with other open data platforms OpenStreetMap among other sources.
- MapPost Bookmark websites with location data. Available as as web app and for mobile.
Knowledge
Performance
Geohashes, Open Location Codes
- Geohash Intro
- Using geohash for proximity searches?
- php - Group coordinates by proximity to each other - Stack Overflow
- Geohashes and You – postzen
- nowelium/geohash-mysql-func: geohash function for mysql
- Native MySQL function
GT_GeoHash(lng,lat,prec)
Open Location Codes are a new open address format by google that solves a few problems described here: Evaluation of Location Encoding Systems · google/open-location-code Wiki
- salavert/open-location-code: PHP port of Open Location Codes, a short code generator that can be used like street addresses, for places where street addresses don't exist
- google/open-location-code: Open Location Code is a library to generate short codes that can be used like street addresses, for places where street addresses don't exist. python, javascript, ruby etc.
Leaflet
Tutorials
Markers, Icons
- Leaflet formula: Counting markers within a radius | Chris Essig jquery, leaflet
- Animating Leaflet Markers (the hacky way)
- Data URI SVG icons with Leaflet
Solutions
- Leaflet custom icon resize on zoom. Performance icon vs divicon - Stack Overflow
💬L.iconDivis faster thanL.icon - Loading 100-200K markers on google map - Stack Overflow
💬 Precompute clusters, wider bounding box -javascript - LeafletJS best approach to object oriented - Stack Overflow
Other Tutorials
- enjalot/wwsd: working with spatial data - workshop materials
- ❗ Map Effects 100 beautiful map effects
Accuracy and Precesion
| Decimal Places | Aprox. Distance | Say What? |
|---|---|---|
| 1 | 10 kilometers | 6.2 miles |
| 2 | 1 kilometer | 0.62 miles |
| 3 | 100 meters | About 328 feet |
| 4 | 10 meters | About 33 feet |
| 5 | 1 meter | About 3 feet |
| 6 | 10 centimeters | About 4 inches |
| 7 | 1.0 centimeter | About 1/2 an inch |
| 8 | 1.0 millimeter | The width of paperclip wire. |
| 9 | 0.1 millimeter | The width of a strand of hair. |
| 10 | 10 microns | A speck of pollen. |
| 11 | 1.0 micron | A piece of cigarette smoke. |
| 12 | 0.1 micron | You're doing virus-level mapping at this point. |
| 13 | 10 nanometers | Does it matter how big this is? |
| 14 | 1.0 nanometer | Your fingernail grows about this far in one second. |
| 15 | 0.1 nanometer | An atom. An atom! What are you mapping? |
https://gis.stackexchange.com/a/109178/112041
