项目作者: ruijadom

项目描述 :
Geospatial Mapping width D3
高级语言: JavaScript
项目地址: git://github.com/ruijadom/geospatial_map.git
创建时间: 2020-02-15T11:43:00Z
项目社区:https://github.com/ruijadom/geospatial_map

开源协议:

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Geospatial Mapping with D3

GeoJSON
Is a format for enconding geographical data (…) can represent cities, countries and roads.

TopoJSON
Is an extension of GeoJSON.

D3
Uses TopoJSON with the help of the client library.

Projections
Define how geographical data is represent on a flat surface.

Choropleths

  • Maps Areas are shaded
  • Color proportional to the value being measured
  • Visualization for quantitative and qualitative data

need to install

  1. npm install -g topojson

create topo.json file

  1. geo2topo custom.geo.json > custom.topo.json