React - Mouse Tracking

Mouse event

A React and SVG visualization demonstrates mouse tracking by rendering a single circle that follows the cursor. The circle's position updates dynamically via React's `useState` hook, which stores the mouse coordinates from the `onMouseMove` event handler. The initial position is set to the center of a 960x500 SVG canvas, and the circle has a radius of 30 pixels. The code uses ReactDOM to render the component to the DOM, with the SVG's width and height explicitly defined.

RRoma

Tracking the Mouse

A black circle on a white SVG canvas follows the mouse cursor in real time. The React component uses the `useState` hook to track the mouse position, updating it via the `onMouseMove` event handler on the SVG element. The circle’s `cx` and `cy` attributes are bound to the current `clientX` and `clientY` coordinates, and both React and ReactDOM are loaded from CDN. The visualization demonstrates simple interactive state management and SVG rendering within a React application.

Ffixh9879

Mouse Move React

A React SVG visualization tracks the mouse position within a 960 by 500 viewport. It renders a single circle that follows the cursor, using React’s `useState` to store coordinates and `useCallback` to optimize the mouse-move handler. The circle’s center updates directly from the event’s `clientX` and `clientY` values, demonstrating a minimal interactive component built with React 16 and rendered through `ReactDOM.render`.

Pprogsum

Mouse Tracking

A single circle tracks the mouse cursor in real time across a full-screen SVG canvas. Built with React 18, the app uses the `useState` hook to store cursor coordinates from the `onMouseMove` event on a div catcher, then passes those coordinates to an SVG circle’s `cx` and `cy` attributes for immediate repositioning. The `useCallback` hook memoizes the event handler for efficiency. ReactDOM renders the component into the page’s root element.

GGabriel

Mouse follow

A moving circle follows the mouse cursor across an SVG canvas, with its position updating in real time as the pointer moves. The example uses React state management with the `useState` and `useCallback` hooks to track cursor coordinates, and renders the circle via SVG elements in a React component. Mouse move events trigger updates to the circle's center position, initialized to the middle of a 960×500 viewport. The visualization demonstrates a simple interactive pattern using React's declarative rendering and event handling.

Kkeitheade

Mouse Tracking

A circle follows the mouse cursor across an SVG canvas, with its position updating in real time as the pointer moves. The visualization uses React’s `useState` and `useCallback` hooks to track `clientX` and `clientY` coordinates from the `onMouseMove` event, rendering a single `<circle>` element via ReactDOM. D3 is loaded but not directly invoked; the rendering relies solely on SVG and React state management.

Mmerrickhaigler

React Draw with Mouse

A React component renders an SVG circle that follows the mouse pointer across a 960×500 canvas. The SVG’s `onMouseMove` event updates React state via `useState`, and `useCallback` memoizes the handler to prevent unnecessary re-renders. The circle’s `cx` and `cy` coordinates are bound to the current mouse position, demonstrating a reactive, declarative drawing interaction. Unlike D3, this example relies solely on React’s state management and SVG’s native event handling to create a live, mouse-driven visualization.

Eekorre1001

Mouse tracker

The mouse tracker shows a single gray-outlined circle following the pointer across an SVG canvas. It demonstrates React’s state management by updating the circle’s center coordinates on every mouse movement via the `onMouseMove` event. The code uses React hooks `useState` and `useCallback`, with `clientX` and `clientY` from the browser event to set the new position. The visualization is purely interactive, with no external data, rendering the circle at a fixed radius of 30 pixels within a 960×500 viewport. The lightweight React setup relies on production builds of React and ReactDOM, and the SVG is generated directly in JSX.

Aaramys.q8@gmail.com