D3 Update Pattern – (block)Punchcard Example V5

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D3 Update Pattern – (block)Punchcard Example V5

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Last edited May 14, 2022

Created on May 14, 2022

Forked from D3 Update Pattern –Punchcard Example V5

This interactive punchcard chart visualizes barley yield data across multiple sites and years, with each circle’s size mapped to the yield value. A dropdown menu filters the dataset by site, and when a new site is selected, the chart transitions smoothly. The visualization uses D3 v5’s `dispatch` event system, `d3.nest()`, and `d3.map()`, along with `d3.scaleSqrt()` for circle scaling and `transition().duration(750)` for animated updates. The data is loaded from a CSV file, and the chart is rendered as SVG with ordinal axes.

AI-generated description

Punch card Chart:v4 dynamic

A vanilla HTML implementation of Chris Henrick PunchCard tutorial "D3JS v4 General Update Pattern: Punchcard Chart"

https://clhenrick.io/d3-v4-general-update-pattern-punchcard-chart/

bl.ock: https://bl.ocks.org/clhenrick/5394591a62a5e61fb8753c1dca13db47

MIT Licensed

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