Modifying a Force Layout

100%

Modifying a Force Layout

✓ Published0🌍 Public

Last edited Mar 11, 2020

Created on Jul 20, 2011

This example demonstrates adding and removing nodes and links from a force-directed graph, built with D3 v4’s `d3.forceSimulation` and rendered as SVG. The graph starts with three disconnected nodes, then cycles every second: connecting them in a loop, removing node C with its links, and then re-adding them. The code uses the general update pattern with data joins, keyed by node ID and link source-target pairs. Simulation forces include `d3.forceManyBody`, `d3.forceLink`, `d3.forceX`, and `d3.forceY`, with `alphaTarget` and `alpha` controlling restarts.

AI-generated description

This example demonstrates how to add and remove nodes and links from a force-directed layout. The graph initially appears with three disconnected nodes A, B and C. After one second, the three are connected in a loop. At two seconds, node C is removed, along with the links A-C and B-C. At three seconds, node C is reintroduced, restoring the original links A-C and B-C. Every subsequent second alternates between these two steps.

This example uses the general update pattern for data joins. See also modifying a force layout with transitions.

gpl-3.0 Licensed

Similar vizzes

Loading thumbnail…

Modifying a Force Layout

This example demonstrates how to add and remove nodes from a force-directed graph over time. Using D3 v4, it starts with three connected nodes (A, B, C) and, after a delay, adds three new nodes, then removes and later re-adds node B with its links. The visualization relies on `d3.forceSimulation` for physics and data joins to update the SVG circles. The code uses the general update pattern with `enter()`, `merge()`, and `exit()` to handle dynamic changes, while CSS classes style nodes distinctly.

DDinoJay

91% match

Loading thumbnail…

Modifying a Force Layout

This example shows a small force-directed graph with three nodes, A, B, and C, that repeatedly changes structure over time. It initially displays three isolated nodes; after one second, the nodes form a triangle of links, then node C is removed with its connections, and later re-added, cycling every second thereafter. Built with d3.v4, the code uses `d3.forceSimulation` for layout physics and applies a general update pattern with `node.data` and `link.data` to join dynamic datasets. The SVG render updates each tick via the simulation's `on("tick", ticked)` callback, repositioning circles and lines accordingly.

FFrissAnalytics

91% match

Loading thumbnail…

Modifying a Force Layout II

This animated SVG example demonstrates how to add and remove nodes and links from a force-directed graph while keeping transitions smooth. The visualization cycles through a small set of three nodes, periodically re-adding and removing one node and its connections. The code uses d3.forceSimulation with forceManyBody, forceLink, forceX, and forceY, applying the general update pattern via `node.exit().transition()` and `link.exit().transition()`. It also relies on `transition.attrTween` to keep exiting links visually attached to moving nodes during removal.

FFrissAnalytics

90% match

Loading thumbnail…

Modifying a Force Layout II

This example shows a force-directed graph with smooth transitions as nodes and links are added and removed. The initial state contains three unconnected nodes before edges form a triangle, from which one node is periodically removed and re-added. The code uses `d3.forceSimulation` with charge, link, x, and y forces, and applies the general update pattern for enter and exit selections. A notable technique is the use of `transition.attrTween` on exiting links to keep them visually connected to the moving nodes via their `x1`, `y1`, `x2`, and `y2` attributes until removal. The rendering is SVG with animation driven by the simulation’s tick event.

Mmbostock

89% match

Loading thumbnail…

D3 v4 - force layout

This example demonstrates a force-directed network layout of 100 nodes and 100 links, rendered as animated SVG circles and lines. The visualization uses d3.forceSimulation with forces for link attraction, collision detection, many-body repulsion, centering, and x/y positioning. Users can drag nodes within the 900×500 pixel graph area, with the simulation’s alpha target adjusting during interaction. The layout updates every tick, repositioning nodes and links based on the simulation state.

Xxsg13

86% match

Loading thumbnail…

D3 v4 - force layout

This example shows a force-directed graph with 100 randomly generated nodes and links, rendered as SVG circles and lines. The code builds the network using `d3.forceSimulation` with forces for link distance, collision, charge, centering, and X/Y positioning, then updates node and link positions on each tick. Nodes are draggable via `d3.drag`, and drag events adjust the simulation’s alpha target to restart or settle movement. The data is synthesized in the script, and the visualization initializes from a blockbuilder.org fork.

FFrissAnalytics

86% match

Loading thumbnail…

Force Layout starter

This example shows a basic force-directed graph with three nodes and two links. The visualization uses d3.forceSimulation with forceManyBody, forceLink, and forceCenter forces to position and animate the network. Circles represent nodes and lines represent links, drawn in an SVG container. The simulation updates node positions on each tick event, and the code includes force simulation configuration and dynamic attribute updates for the SVG elements.

MMarco Trevisan

85% match

Loading thumbnail…

forcelayouttest

A force-directed network cycles through a repeating pattern of adding and removing three linked nodes. The visualization demonstrates dynamic graph updates: first, all three nodes and their triangular links appear; then the third node and two links are removed; finally, the node and links return. The simulation uses `d3.forceSimulation` with `d3.forceManyBody`, `d3.forceLink`, and positional forces, while `d3.interval` and `d3.timeout` schedule the state changes. Circles and lines are drawn in SVG, with nodes colored via `d3.scaleOrdinal` and `d3.schemeCategory10`.

335degrees

85% match