D3 Selection

D3.js Starter

This example renders a smiley face in an SVG canvas using D3.js version 5. It draws a yellow circle for the head, two black circles for the eyes, and a semi-circular path for the mouth, all positioned via width and height attributes retrieved from the SVG element. The code uses d3.select to append shapes and d3.arc to generate the mouth path, with styles defined in an external CSS file. It demonstrates basic SVG manipulation and shape generation within a React framework using D3’s selection and arc APIs.

Mmballestiero

D3.js demo

This example visualizes a smiling face constructed entirely from basic SVG shapes using D3.js version 7. The code selects an SVG element and appends a yellow circle for the face, two black circles for eyes, and a curved path for the mouth using the `d3.arc` API. The visualization demonstrates fundamental D3 selection and data-joining techniques within a React framework, with the SVG dimensions derived directly from the element's attributes.

AAyushman

Smiley with D3.js

This example demonstrates basic SVG rendering with D3.js by drawing a series of circles whose positions and colors update dynamically with changing data arrays. The code uses D3 selections and the `data()` join to append circle elements, mapping each value to a vertical position (`cy`) and a red or blue fill depending on whether the value exceeds 30. It highlights the enter selection pattern by calling `updateVis` twice with different datasets, showing how new circles are added incrementally. The visualization relies on D3 v3’s core selection API and standard SVG attributes within a 960x500 canvas.

Wwindwardpassage

D3.js Starter

This example shows a simple smiley face rendered as SVG elements, including a yellow circle for the face, black circles for eyes, and a path for the mouth. The code uses d3-selection’s `select` and `append` methods to build the SVG structure, and d3-shape’s `arc` function to generate the mouth’s curved path. The visualization is static, with dimensions pulled from the SVG’s width and height attributes. It serves as a minimal starter template for integrating D3 with React and SVG rendering.

Mmballestiero

D3 Selection exploration

This example demonstrates how D3 selections manage dynamic data updates through animation. An SVG scene continuously redraws a set of circles and connecting lines, with the number of elements oscillating between 5 and 15 based on a sine wave. The code uses D3’s `select` and `range` functions, along with the `join` pattern to bind data to circle and line elements. Data is generated procedurally via `makeData`, updating positions and radii each frame. React serves as the framework wrapper, while the animation runs on a `setInterval` timer with a 60fps approximation.

Rrwata97

D3 Selections

An animated SVG demonstrates the D3 selection API by updating a set of circles. The visualization shows fifteen circles moving in a sine wave pattern, with their vertical position oscillating over time. The code uses D3’s `select` to target the body element, `range` to generate data, and a `join` operation to efficiently update existing circles based on the incoming data. The animation runs at 60 frames per second via `setInterval`, creating a smooth, continuous motion. The example highlights the workflow of selecting, appending, and merging SVG elements with D3’s data-binding methods.

MMatheesha Yapa

D3 Selection Exploration

D3 Selection Exploration demonstrates animated data binding and joins with D3 v7. It renders 15 circles and corresponding lines on an SVG canvas, with positions and radii oscillating sinusoidally over time via a `setInterval` loop. The code uses `select`, `range`, and the `.join()` method to handle enter, update, and exit selections for both `circle` and `line` elements, updating coordinates (`cx`, `cy`, `x1`, `y1`, `x2`, `y2`) each frame.

Ggyan9427

Ccharlieronchetti@gmail.com

D3 Selection Exploration

A dynamic collection of circles animates in real time, with positions, radii, and colors shifting continuously. The visualization demonstrates React and D3 version 7 selection methods, using `select` and `join` to bind and update SVG circle elements to arrays of data objects generated by a custom `makeData` function. An interval drives the animation at roughly 60 frames per second, incrementing a time variable that modulates sine waves controlling each circle's vertical position, radius, and RGB color values. The example showcases how D3's data joins efficiently handle live updates to the DOM.