ForceLayout - maintain x-position of nodes

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ForceLayout - maintain x-position of nodes

✓ Published0🌍 Public

Last edited Dec 3, 2018

Created on Apr 15, 2016

This example visualizes the distribution of 150 French word stems along the x-axis based on a trend value, with each circle’s horizontal position fixed while vertical positions resolve through force simulation. The D3.js v3 force layout uses custom constraints to lock each node’s x-coordinate, allowing circles to stack vertically for easier hover inspection. Tooltips display the stem, rank, and trend value on mouseover, with a data-gui control to quadruple the number of points. The chart renders as animated SVG, reusing bounded-force techniques from mbostock and bjtucker.

AI-generated description

This <a href='http://bl.ocks.org/Kcnarf/91c5e84bed1ba6b1541deaa5d5f4f258'>block</a> experiments a way to vizualise the distribution of things (whatever it is) in a horizontal way (ie. along the x-axis), where constraints/objectives are:

to maintain the exact position of each datum (represented by a circle) along the x-axis
to be able to hover each circle to show related datum

This block uses the d3's Force Layout to achieve these objectives. I re-use the technics illustrated in <a href='http://bl.ocks.org/mbostock/1129492'>mbostock's block</a> in and later by <a href='http://bl.ocks.org/bjtucker/151f6344ffd02105a67a'>bjtucker's block</a>, in order to constrain each circle's x-position while allowing vertical accumulation/aggregation of circles.

Acknowledgments to:

<a href='https://d3js.org/'>D3.js</a> (v3.5.5)
<a href='http://blockbuilder.org'>blockbuilder.org</a>
<a href='http://workshop.chromeexperiments.com/'>dat.gui</a>
<a href='http://bl.ocks.org/mbostock/'>mbostock</a>'s block: <a href='http://bl.ocks.org/mbostock/1129492'>Bounded Force Layout</a>
<a href='http://bl.ocks.org/bjtucker/'>bjtucker</a>'s block: <a href='http://bl.ocks.org/bjtucker/151f6344ffd02105a67a'>Bounded Force Layout - force rank by group</a>

mit Licensed

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