@sux/react-simple-maps
v2.1.4
Published
An svg map chart component built with and for React
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react-simple-maps
Create beautiful SVG maps in react with d3-geo and topojson using a declarative api.
Read the docs, or check out the examples.
Why
React-simple-maps
aims to make working with svg maps in react easier. It handles tasks such as panning, zooming and simple rendering optimization, and takes advantage of parts of d3-geo and topojson-client instead of relying on the entire d3 library.
Since react-simple-maps
leaves DOM work to react, it can also easily be used with other libraries, such as react-spring and react-annotation.
Install
To install react-simple-maps
$ npm install --save react-simple-maps
...or if you use yarn:
$ yarn add react-simple-maps
Usage
React-simple-maps
exposes a set of components that can be combined to create svg maps with markers and annotations. In order to render a map you have to provide a reference to a valid topojson file. You can find example topojson files in the topojson-maps
folder or on topojson world-atlas. To learn how to make your own topojson maps from shapefiles, please read "How to convert and prepare TopoJSON files for interactive mapping with d3" on medium.
import React from "react"
import ReactDOM from "react-dom"
import {
ComposableMap,
Geographies,
Geography,
} from "react-simple-maps"
// url to a valid topojson file
const geoUrl =
"https://raw.githubusercontent.com/zcreativelabs/react-simple-maps/master/topojson-maps/world-110m.json"
const App = () => {
return (
<div>
<ComposableMap>
<Geographies geography={geoUrl}>
{({geographies}) => geographies.map(geo =>
<Geography key={geo.rsmKey} geography={geo} />
)}
</Geographies>
</ComposableMap>
</div>
)
}
document.addEventListener("DOMContentLoaded", () => {
ReactDOM.render(<App />, document.getElementById("app"))
})
Check out the live example
The above will render a world map using the equal earth projection. You can read more about this projection on Shaded Relief and on Wikipedia.
For other examples and components, check out the documentation.
License
MIT licensed. Copyright (c) Richard Zimerman 2017. See LICENSE.md for more details.