Transition()

As explained in D3.js in Action, Third Edition

The D3 selection transition() method starts an animated transition on a selection and returns a transition for configuring interpolated changes.

D3 selection transition() starts an animation and returns a transition for configuring interpolated changes. In a React visualization, it can animate curve paths while React continues to manage the surrounding chart. section 8.7

Animating filtered ranking curves

After a filter changes the data, select the SVG path in useEffect, then chain transition(), duration(400), ease(d3.easeCubicOut), and attr("d", lineGenerator(props.data)). Store the path with useRef and rerun the effect when data changes. Keep labels and badges under React and CSS transitions when many elements make D3 animation less attractive. section 8.7

Figure 8.13 For the rankings visualization, we’ll use the hybrid approach. We built the chart entirely with React but will allow D3 to control the d attribute of the curves to provide smooth transitions.

Use the hybrid rankings figure to see how D3 animates curve paths while React controls the rest of the visualization. section 8.7

How D3.js in Action, Third Edition covers it

How deep it goes

Explains selection, duration, easing, and attribute updates through a React hook, while deferring broader transition design decisions.

Examples

Demonstrates filtered rankings curves, animated d attributes, and separately transitioned framework labels and badges.

What it assumes

Uses React hooks, refs, effects, D3 selections, scales, and line generators as surrounding implementation machinery.

What you can do after

Apply it via D3 to animate an SVG path when visualization data changes.

How it connects

Connects D3 selections with React useRef, useEffect, SVG paths, line generators, and CSS transitions.

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Related concepts

• D3 transitionpart of · A D3 transition is a time-based interpolation that animates selected document elements' attributes or styles from current values to target values.
• delay()configured by · A delay is an operation or mechanism that postpones an action, computation, notification, message, or transition for a specified duration.
• duration()configured by · duration() is a D3 transition method that sets or retrieves the transition duration in milliseconds.
• easingconfigured by · Easing is a function or timing technique that varies an animation or transition’s rate of change over its duration.
• ease()configured by · ease() is a D3 transition method that sets or retrieves the easing function controlling interpolation timing.

This explainer was generated by Manning's knowledge graph from the text of D3.js in Action, Third Edition. The section links point to the parts of the book it draws on.