d3 and canvas

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d3 and canvas - the bind and the draw

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Last edited Apr 11, 2022

Created on Apr 11, 2022

This example demonstrates how D3’s data join can drive canvas rendering through a custom HTML element as an intermediate container. The visualization displays a grid of colored cells, with the number of cells controlled by a text input, and animates their appearance. The code binds data to custom elements using D3’s `selectAll`, `enter`, and `merge`, then draws each cell’s position and fill style onto a 2D canvas context, using a `d3.scaleSequential` color scale and `d3.timer` for animation.

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A bare minimum HTML page demonstrating use of CSS and JavaScript.

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