topojson/world-atlas

Name: world-atlas

Owner: TopoJSON

Description: Pre-built TopoJSON from Natural Earth.

Created: 2013-02-14 18:31:03.0

Updated: 2018-01-15 23:11:17.0

Pushed: 2017-09-14 20:18:59.0

Homepage:

Size: 349

Language: Shell

GitHub Committers

User	Most Recent Commit	# Commits

Other Committers

User	Email	Most Recent Commit	# Commits

README

World Atlas TopoJSON

This repository provides a convenient mechanism for generating TopoJSON files from Natural Earth?s vector data, version 2.0.0.

Usage

In a browser (using d3-geo and Canvas), bl.ocks.org/3783604:

CTYPE html>
vas width="960" height="500"></canvas>
ipt src="https://d3js.org/d3.v4.min.js"></script>
ipt src="https://unpkg.com/topojson-client@3"></script>
ipt>

context = d3.select("canvas").node().getContext("2d"),
path = d3.geoPath(d3.geoOrthographic(), context);

son("https://unpkg.com/world-atlas@1/world/110m.json", function(error, world) {
 (error) throw error;

ntext.beginPath();
th(topojson.mesh(world));
ntext.stroke();


ript>

In Node (using d3-geo and node-canvas), bl.ocks.org/885fffe88d72b2a25c090e0bbbef382f:

fs = require("fs"),
d3 = require("d3-geo"),
topojson = require("topojson-client"),
Canvas = require("canvas"),
world = require("./node_modules/world-atlas/world/110m.json");

canvas = new Canvas(960, 500),
context = canvas.getContext("2d"),
path = d3.geoPath(d3.geoOrthographic(), context);

ext.beginPath();
(topojson.mesh(world));
ext.stroke();

as.pngStream().pipe(fs.createWriteStream("preview.png"));

File Reference

# world/110m.json <>

A TopoJSON topology containing two geometry collections: countries and land. The geometry is quantized, but not projected; it is in spherical coordinates, decimal degrees. This topology is derived from the Natural Earth?s Admin 0 country boundaries, 1:110m small scale, version 2.0.0. The land boundary is computed by merging countries, ensuring a consistent topology.

# world.objects.countries

# world.objects.land

# world/50m.json <>

Equivalent to world/110m.json, but at 1:50m medium scale.

# world.objects.countries

# world.objects.land