can't we all get along?

D3 in Action Chapter 11 - Example 6

This example demonstrates a hybrid rendering technique for large-scale network visualizations, using 3,000 nodes connected by roughly 1,000 random links. It first draws the nodes as red SVG circles, which retain mouse interactivity, while simultaneously rendering the edges on an overlay HTML5 Canvas for performance. A force-directed layout, driven by `d3.layout.force()`, updates node positions on each tick, clearing the canvas and redrawing the link strokes before repositioning the SVG circles. The approach balances interactivity with animation speed, leveraging both the Canvas `getContext("2d")` API and D3’s selection logic.

77% match

Force layout on canvas with zoom/pan and drag

A black canvas displays a force-directed network of small white nodes with red exceptions, connected by white edges. The example uses D3 v4 and d3-force v1, with d3.forceSimulation managing the layout. Users can pan, zoom, and drag nodes via d3.zoom and d3.drag, with all rendering performed directly on the canvas 2D context. Node positions update on each simulation tick, and the graph is drawn from a local data.json file.

77% match

interactive svg + canvas plot

An interactive plot combines 200 randomly positioned circles, with half rendered as blue SVG elements and half as black canvas shapes. A single d3.layout.force simulation drives collision detection and movement for all nodes, while d3.behavior.zoom enables panning and zooming. The SVG circles update via attribute transforms, and the canvas layer redraws its context on every tick.

76% match

Let's make a face with D3.js!

A D3.js example builds a force-directed graph visualization of a network, rendered on a Canvas element with red circular nodes and connecting edges. The simulation uses `d3.forceSimulation` with `d3.forceX`, `d3.forceY`, `d3.forceCollide`, `d3.forceManyBody`, and `d3.forceLink` to position nodes and links. Data is loaded from a JSON file via `d3.json`, and the `tick` event updates the Canvas drawing. The code demonstrates combining SVG markup with Canvas rendering for network exploration.

Hhhhheeee

75% match

Force layout on canvas with zoom/pan and drag

A force-directed network layout renders nodes and edges on a canvas with zoom, pan, and drag interactions. The visualization uses `d3.forceSimulation` to position nodes based on charge, link, and centering forces, while `d3.zoom` and `d3.drag` handle transformations and node fixation. Data comes from a local `data.json` file containing node IDs and links. Nodes are drawn as circles, with one node colored red via a custom `col` property, on a black background.

fresh block

A small force-directed simulation places three colored circles, representing nodes, in a 500-by-500 SVG canvas. The code uses `d3.forceSimulation` with `d3.forceManyBody`, `d3.forceX`, and `d3.forceY` to animate node positions, while a `tick` handler updates the circles' `cx` and `cy` attributes. The simulation restarts at timed intervals, first removing a node from the data array, then re-adding it, and finally pushing a new node, demonstrating how the layout adjusts to dynamic data changes.

EEE2dev

d3 and canvas - the bind, the draw and the pick

This example demonstrates how d3 and Canvas can work together for interactive visualization, showing 5,000 colored grid cells arranged in a 10x10 group layout. The code uses d3.v4 to bind data to custom DOM elements, applying sequential color scales with d3.interpolateSpectral. Rendering happens through a main canvas while a hidden canvas uses unique generated RGB colors and a color-to-node map for picking interactions. A tooltip appears on hover, and d3.timer animates cell widths during transitions, with optional React integration via VizHub.

Llars verspohl

winter force

Two groups of colored nodes—blue and green—hover near the center of a canvas, responding to mouse clicks on Split and Unite buttons that reconfigure their positions. The visualization renders each frame to a 2D Canvas context, using `d3.forceSimulation` with `d3.forceManyBody`, `d3.forceX`, and `d3.forceY` to control attraction and separation. Clicking Split drives the blue cluster to the left and green to the right; Unite pulls them back toward overlapping centers while adding `d3.forceCollide` to keep nodes from merging. Node positions, colors, and radii are set per object, with 200 blue and 50 green circles generated randomly.