Square Grid

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✓ Published0🌍 Public

Last edited Mar 18, 2019

Created on Mar 18, 2019

A grid of gray squares fills the view, with each square representing a single unit, arranged so that rows of ten, blocks of one hundred, and groups of one thousand are visually distinct. The count, displayed as a large number, animates upward or downward as the grid randomly updates to a new total between zero and ten thousand, using transitions to add or remove squares. The visualization uses D3 v4 with data joins and tweens to interpolate the numeric label, while the grid’s layout is computed via `d3.range` and positional math. This example is forked from Mike Bostock’s original block.

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.

forked from <a href='http://bl.ocks.org/mbostock/'>mbostock</a>'s block: <a href='http://bl.ocks.org/mbostock/1009139'>Square Grid</a>

gpl-3.0 Licensed

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