| # request one at http://api.census.gov/data/key_signup.html and paste it below | |
| CENSUS_API_KEY=YOUR_CODE_HERE | |
| # a factor 1609.34 squared | |
| SQ_M_TO_SQ_MI=2589975.2356 | |
| #prereqs: | |
| # npm install -g shapefile # 0.6.1 | |
| # npm install -g d3-geo-projection # 1.2.1 | |
| # npm install -g ndjson-cli # 0.3.0 |
| license: gpl-3.0 | |
| height: 600 | |
| border: no |
| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <title>Point on a map D3</title> | |
| <script src="http://d3js.org/d3.v3.min.js" charset="utf-8"></script> | |
| <script src="http://d3js.org/topojson.v1.min.js"></script> | |
| <style type="text/css"> |
| license: gpl-3.0 | |
| height: 600 | |
| border: no |
This is a d3.js visualization of US zip codes.
Original zip code dataset from Geocommons.
5MB shapefile with properties such as zipcode, state, name, population, area, more.
http://geocommons.com/overlays/54893 (Thank you Bill Greer)
This converts it nicely:
This example demonstrates accelerated two-dimensional filtering enabled by d3-quadtree. A quadtree recursively subdivides square cells into four equal-sized subcells. Each leaf node of the quadtree contains a single point. If a given quadtree cell does not intersect the brush extent, then none of the points contained in that subtree can be selected, and thus do not need to be scanned. Above, orange indicates points that are scanned but not selected. Without a quadtree, all points would need to be scanned!
Mapbox GL and geojson overlay using D3
Display geojson data as an overlay on a Mapbox GL map using D3, and switch between geographic and topologic view. It shows the Berlin metro and underground rail system (S-Bahn and U-Bahn). This is heavily inspired by Jordi Tosts mapbox-gl-d3-playground
To remove a submodule you need to:
| license: gpl-3.0 |
