D3 Selection

D3 Selection Exploration

This example demonstrates D3’s selection and data-join mechanics by continuously generating a changing set of circles. A `setInterval` updates the data array, whose length and positions vary with a sine wave, and the `svg.selectAll('circle').data(data).join('circle')` pattern creates or removes circles to match. The code uses D3 v7’s `select` and `range` functions, renders as an SVG animation, and updates element attributes (`cx`, `cy`, `r`) every 10 milliseconds.

EEd Smale

D3 Selection Exploration

This example demonstrates how D3’s data join pattern animates a dynamic set of circles, whose count and vertical positions oscillate sinusoidally over time. Using `d3.select` and `d3.range`, it generates an array of points and binds them to SVG circle elements via `selection.data()` and `selection.join()`, updating `cx` and `cy` attributes each frame. The code runs a `setInterval` at 60fps, recalculating data with a time-based sine wave, while `d3` version 7.6.1 manages enter, update, and exit states automatically.

ММаксим Грязнов

D3 selection exploration

This example demonstrates how D3 selections manage dynamic data updates through animated circles. It uses `d3.select`, `d3.range`, and the selection’s `.data()`, `.join()`, and `.attr()` methods to bind changing arrays of position and radius values to SVG circle elements. A `setInterval` loop updates the data at 60fps, with positions and sizes driven by sine functions, causing circles to appear, disappear, and shift smoothly. The code highlights both loose coupling of data to visual attributes and the modern `.join()` API for enter/update/exit handling.

BBart van Pelt

D3 Selection Explorations

A collection of animated circles demonstrates D3's data-join pattern for dynamic SVG rendering. The visualization continually updates data via a JavaScript interval, adjusting the number and positions of circles based on sine waves. Using D3 v6, the code employs `select`, `range`, and the `join` method to bind new data to existing SVG circle elements, updating their `cx` and `cy` attributes at 60 frames per second. The example highlights the simplicity of enter, update, and exit handling within a single chained call.

EEdgar Cortez

D3 selection exploration

This example demonstrates how D3’s data join and selection mechanism dynamically updates an SVG scene in real time. An animated set of circles shifts vertically based on a sine wave, with their count oscillating between five and fifteen as time progresses. The code uses `d3.select`, `d3.range`, and `.join('circle')` to bind incoming data to SVG elements, updating positions each frame via `setInterval`. Data is generated procedurally from a mathematical function rather than an external dataset.

PPetrescu Alexandru

D3 Selection Exploration

A dynamic SVG animation demonstrates D3's data join pattern with shifting circle counts. The visualization uses `d3.select`, `d3.range`, and the `selection.join()` method to bind an array of computed data points to circle elements, updating their `cx` and `cy` attributes with sine-based positions. Circles appear and disappear as the data length varies, driven by a `setInterval` callback that increments a time variable at 60 frames per second. The example renders directly into the browser using D3 v6, with no external data source beyond the generated numeric values.

Kktshim@snu.ac.kr

D3 Selection Exploration

A set of circles animates smoothly across the screen, their count and vertical positions oscillating sinusoidally over time. The example demonstrates D3's data join pattern using `selectAll`, `data`, and `.join('circle')` to handle enter, update, and exit states. The SVG is sized to the full viewport, and an interval updates the dataset every 100 milliseconds, repositioning each circle via `attr('cx')` and `attr('cy')`. The source data is generated on the fly with `range` and `Math.sin`, rendering with D3 v6's SVG and animation capabilities.

TTheo-0201

D3 Selection Exploration

Fifteen circles undulate in an animated sine-wave pattern, with positions and radii oscillating smoothly over time. The example demonstrates D3's selection and data-join mechanics by using `selectAll` and `join` to bind an array of generated data to SVG circle elements. Rendered in SVG, the animation updates every 100 milliseconds via `setInterval`, incrementing a phase variable to drive the motion. The code imports `select` and `range` from D3 v7, showing the modern `join` pattern as a concise replacement for the older `enter`/`merge` approach.

Aalexscott-untitled