Security News
Cloudflare Adds Security.txt Setup Wizard
Cloudflare has launched a setup wizard allowing users to easily create and manage a security.txt file for vulnerability disclosure on their websites.
@types/d3-geo
Advanced tools
The @types/d3-geo package contains TypeScript type definitions for d3-geo, a JavaScript library that provides geographical projections, transformations, and path generators. It enables developers to work with geographic data using D3.js, ensuring type safety and autocompletion in TypeScript projects.
Geographic Projections
This feature allows you to create various geographic projections to map spherical coordinates to a flat surface. The code sample demonstrates how to create an Albers projection and a path generator for rendering.
import * as d3 from 'd3-geo';
const projection = d3.geoAlbers();
const pathGenerator = d3.geoPath().projection(projection);
const pathData = pathGenerator({ type: 'Sphere' });
Spherical Shapes
This feature enables the creation of spherical shapes such as circles on the globe. The code sample shows how to create a geoCircle with a specified center and radius, and generate the path data for rendering.
import * as d3 from 'd3-geo';
const circle = d3.geoCircle().center([0, 0]).radius(90);
const circlePathData = d3.geoPath()(circle());
Geographic Transformations
This feature provides transformations such as rotations to manipulate geographic coordinates. The code sample illustrates how to rotate a point on the globe.
import * as d3 from 'd3-geo';
const rotate = d3.geoRotation([90, -45]);
const rotatedCoordinates = rotate([0, 0]);
GeoJSON Feature Rendering
This feature allows rendering of GeoJSON objects using D3's path generator. The code sample demonstrates how to generate path data for a GeoJSON feature.
import * as d3 from 'd3-geo';
import { Feature } from 'geojson';
const pathGenerator = d3.geoPath();
const feature: Feature = {
type: 'Feature',
geometry: {
type: 'Point',
coordinates: [0, 0]
}
};
const pathData = pathGenerator(feature);
TopoJSON is an extension of GeoJSON that encodes topology. It offers functionality to encode geographic data structures in a more efficient format than GeoJSON. Unlike @types/d3-geo, which provides type definitions for D3's geographic functionalities, TopoJSON focuses on the data format itself.
Leaflet is a leading open-source JavaScript library for mobile-friendly interactive maps. It is designed with simplicity, performance, and usability in mind. While @types/d3-geo provides type definitions for D3's geographic functions, Leaflet offers a full-fledged mapping solution with a wide range of features including tile layers, markers, popups, and more.
Proj4js is a JavaScript library to transform point coordinates from one coordinate system to another, including datum transformations. It is similar to @types/d3-geo in that it deals with geographic projections, but it is a standalone library for coordinate transformation rather than type definitions for D3's geographic functions.
npm install --save @types/d3-geo
This package contains type definitions for D3JS d3-geo module (https://github.com/d3/d3-geo/).
Files were exported from https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/d3-geo.
These definitions were written by Hugues Stefanski, Tom Wanzek, Alex Ford, Boris Yankov, and Nathan Bierema.
FAQs
TypeScript definitions for d3-geo
The npm package @types/d3-geo receives a total of 1,673,985 weekly downloads. As such, @types/d3-geo popularity was classified as popular.
We found that @types/d3-geo demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
Did you know?
Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.
Security News
Cloudflare has launched a setup wizard allowing users to easily create and manage a security.txt file for vulnerability disclosure on their websites.
Security News
The Socket Research team breaks down a malicious npm package targeting the legitimate DOMPurify library. It uses obfuscated code to hide that it is exfiltrating browser and crypto wallet data.
Security News
ENISA’s 2024 report highlights the EU’s top cybersecurity threats, including rising DDoS attacks, ransomware, supply chain vulnerabilities, and weaponized AI.