Square Grid

100%

✓ Published0🌍 Public

Last edited Feb 9, 2016

Created on Jun 5, 2011

This visualization displays a changing quantity as a grid of colored squares, where each square represents one unit, arranged so small rows of ten, groups of one hundred, and large rows of one thousand allow quick reading of exact counts by powers of ten. The count updates randomly, with squares animating in and out using `transition.attr("width", 0)` and `transition.delay` based on index. The SVG rendering uses `d3.select` and `d3.range` to manage the cells, and a `d3.interpolateNumber` tween animates the text label. The code uses the D3 v3 library and an interval timer to trigger updates.

AI-generated description

A simple and effective form for visualizing magnitude is this gridded layout of colored squares. Each individual square represents one unit; each small row represents ten units; the small rows are grouped into ten, representing one hundred; lastly, ten groups per large row represents one thousand. This arrangement affords quick and natural reading of exact counts by powers of ten.

For an example of this technique in practice, see Randall Munroe’s Radiation Dose Chart.

gpl-3.0 Licensed

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