Fork of d3 and canvas - the bind, the draw and the pick

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Fork of d3 and canvas - the bind, the draw and the pick

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Last edited Jun 3, 2022

Created on Jun 3, 2022

Forked from d3 and canvas - the bind, the draw and the pick

This example shows an interactive canvas visualization of 5,000 colored grid cells, where users can adjust the number of cells via a text input and hover to see a tooltip with the cell’s value. It uses D3 v4 for data binding and scales, while rendering both a visible canvas and a hidden canvas for color-based picking—mapping each cell to a unique RGB color via `getImageData` to identify hovered elements. The demo includes a timer-driven animation that redraws the grid over 300 milliseconds.

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

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