Mouse Follower

Mouse Follower

A circle follows the mouse cursor as it moves across an SVG canvas. The React component tracks pointer coordinates via the `onMouseMove` event and updates the circle’s `cx` and `cy` attributes through `useState` and `useCallback`. Rendered with D3 v5’s SVG helpers within React 16.9, the example demonstrates real-time state-driven positioning without external data.

Bboreilly26

Mouse Follower

A circle follows the mouse cursor across an SVG canvas, centering itself on the pointer’s coordinates. The example demonstrates React state management to track mouse movement, updating the circle’s position on every move event. It uses React’s `useState` and `useCallback` hooks alongside D3 v6 for the SVG rendering, with an initial circle centered at 480, 250. The visualization responds interactively in real time, showcasing a minimal integration of React and D3 for dynamic graphics.

WWolfgang

Mouse Follower

This example shows a single circle that follows the mouse cursor across an SVG canvas. Built with React and D3 v5, it uses React’s `useState` hook to track the cursor’s clientX and clientY coordinates on every `mousemove` event, then re-renders the circle’s `cx` and `cy` attributes to match. The `useCallback` hook memoizes the event handler, and the initial mouse position is set to the canvas center. The rendering uses ReactDOM to mount the SVG, with no external data source.

CChristopher Cleland

Mouse follower

This example demonstrates a mouse-follower visualization: a circle that tracks the cursor’s position across an SVG canvas. The circle moves continuously as the user moves the mouse, with its center coordinates updated from the event’s `clientX` and `clientY` values. The implementation uses React’s `useState` and `useCallback` hooks to manage and update the mouse position, while the `<svg>` element’s `onMouseMove` handler triggers the state change. The rendering is done via SVG, with a single `<circle>` element whose `cx` and `cy` attributes are bound to the current position. D3 is loaded but not used for interaction or data processing.

TtheV1rTual

Mouse Follower

A circle follows the mouse cursor across an SVG canvas, updating its position in real time as the pointer moves. The visualization uses React state to track mouse coordinates via the `onMouseMove` event handler and renders a single `<circle>` element with D3 v7’s selection-free React integration. The SVG viewport is fixed at 960 by 500 pixels, and the circle’s center tracks the clientX and clientY values directly.

Kkbrookshire420

Mouse Follower

A circle follows the mouse cursor inside an SVG canvas, updating its position in real time as the pointer moves. The example combines React state management with D3.js v7 for SVG rendering, using the `useState` hook to track mouse coordinates and a `useCallback` event handler to update them on `mousemove`. The circle is drawn with hardcoded width and height values, and the mouse position is captured via `clientX` and `clientY` from the native browser event.

Ttrissentety

Mouse Follower

An interactive SVG visualization renders a single circle that follows the mouse cursor across a 960-by-500 canvas. The React component tracks pointer movement via the `onMouseMove` event and updates the circle’s `cx` and `cy` attributes through `useState` and `useCallback`. Initially positioned at the canvas center, the circle moves smoothly with the cursor. The example demonstrates state-driven rendering in React 17 with D3 v7, using plain SVG elements rather than data joins or scales. No external data source is involved; the visualization purely reacts to user input.

LLove Wessman

Mouse Follower

A single circle follows the mouse cursor across an SVG canvas. The React component tracks pointer movement through the `onMouseMove` handler and updates the circle's `cx` and `cy` attributes in state. The visualization uses React `useState` and `useCallback` for state management, with the SVG rendered directly by React. No external data source is involved; the interaction relies purely on mouse event handling within the React and D3-powered environment.

VVaishnavi Muthukrishnan