@types/d3-axis

What is @types/d3-axis?

The @types/d3-axis package provides TypeScript type definitions for the d3-axis module, which is part of the D3 (Data-Driven Documents) library. This package allows developers to use D3's axis component in TypeScript projects with type checking, enabling them to create and manipulate axes in SVG for data visualization with the assurance of type safety.

What are @types/d3-axis's main functionalities?

Creating an Axis

This code sample demonstrates how to create a bottom-oriented axis using a linear scale. The axis will map a domain of [0, 100] to a range of [0, 400] in the SVG.

import * as d3 from 'd3';

const scale = d3.scaleLinear().domain([0, 100]).range([0, 400]);
const axis = d3.axisBottom(scale);

Customizing Tick Values

This code sample shows how to customize the tick values on an axis. Instead of using the scale's automatic ticks, it specifies an array of tick values at 0, 50, and 100.

import * as d3 from 'd3';

const scale = d3.scaleLinear().domain([0, 100]).range([0, 400]);
const axis = d3.axisBottom(scale).tickValues([0, 50, 100]);

Formatting Tick Labels

This code sample illustrates how to format the tick labels on an axis. It uses d3.format to display the tick values as percentages with no decimal places.

import * as d3 from 'd3';

const scale = d3.scaleLinear().domain([0, 100]).range([0, 400]);
const axis = d3.axisBottom(scale).tickFormat(d3.format('.0%'));

Other packages similar to @types/d3-axis

d3-axis

The d3-axis package is the actual JavaScript implementation of the axis component in D3. It provides the functionality to create and manipulate axes in SVG. The @types/d3-axis package provides TypeScript definitions for this package.

d3-scale

The d3-scale package provides a collection of scale functions for visual encoding of data. These scales are used to map data values to visual representation. While d3-axis is used to create the visual representation of an axis, d3-scale is used to define the domain and range that the axis represents.

d3-selection

The d3-selection package allows you to select and manipulate elements in the document. It is often used together with d3-axis to render the axis in the DOM by selecting an SVG container and calling the axis function on it.

README

Installation

npm install --save @types/d3-axis

Summary

This package contains type definitions for d3-axis (https://github.com/d3/d3-axis/).

Details

Files were exported from https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/d3-axis.

Additional Details

• Last updated: Wed, 18 Oct 2023 00:05:18 GMT
• Dependencies: @types/d3-selection

Credits

These definitions were written by Tom Wanzek, Alex Ford, Boris Yankov, denisname, and Nathan Bierema.