schfflr

@schfflr·2 public vizzes

Mouse follower

A single black circle follows the mouse cursor across an SVG canvas. The circle’s position updates on every `mousemove` event, driven by React state. The application uses React’s `useState` and `useCallback` hooks to track the cursor’s coordinates and re-render the circle accordingly. The example is rendered with D3.js v6 for SVG creation, while React handles the interactive state, with no external data source.

Apr 14, 2021

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Fork of Smiley Face Part II

This example renders a smiley face using React and D3, with the face centered and scaled to fill the browser window. The code constructs the head, eyes, and mouth as SVG elements, where the mouth path is generated via D3’s `arc()` function with configured inner/outer radii and angle ranges. React manages the SVG hierarchy and component state, while D3 v6 handles the arc geometry and utility functions. The rendering approach is purely SVG, with no data source, as the visualization is entirely derived from hardcoded pixel dimensions and offsets.

Apr 13, 2021