Mouse follower

Mouse follower

A yellow smiley face rendered with React and SVG follows the mouse cursor across the screen. Built with React 16.9 and D3 v5, the face is constructed using SVG circles and a D3 `arc()` generator for the mouth. The program tracks pointer movement and updates the circle’s position accordingly, demonstrating simple mouse-event handling with SVG rendering in a React framework.

MMark Zwart

Mouse Follower

A smiley face rendered in SVG follows the cursor inside a 960×500 viewport. The React component tracks mouse movement via the `onMouseMove` handler and updates the circle’s position using state and the `useCallback` hook. The face is drawn with a yellow circle and two black eye circles, though the eyes remain static while the entire group moves. Rendering relies on React DOM with SVG elements, and the example highlights state-driven updates without external data sources.

SStefano Renzetti

mouse follower

A yellow smiley face follows the mouse cursor across an SVG canvas. The face’s components—eyes, brows, and an arc-shaped mouth—are built with React state and D3’s `arc` generator, repositioned via a `transform` attribute on each mouse move. The example uses `useState` and `useCallback` to track cursor coordinates, and ReactDOM renders the interactive graphic.

MMegRocky

Mouse Follower

A smiley face rendered in SVG follows the mouse cursor across a yellow background. The face, built from React components for the background circle, eyes, and a d3.arc-generated mouth, updates its position via React state on every mousemove event. The visualization uses React’s useCallback and useState hooks to track client coordinates, re-rendering the face container at the new location.

Kkevin-jake

Mouse Follower

A yellow smiley face, built from SVG circles and an arc, tracks the cursor across a full-screen canvas. The face renders with React components, including a d3.arc-generated mouth, while the center position updates via React state on mouse events. The app uses React's useCallback and useState hooks to manage the mouse coordinates, drawing the face inside a transparent SVG that spans the viewport.

JJohn Huang

Mouse follower

A smiley face rendered as a single SVG circle follows the mouse cursor across a 960×500 canvas. The React component tracks pointer coordinates via an `onMouseMove` handler and updates its position through `useState`, while D3’s `arc` utility is imported but unused. The circle’s `cx` and `cy` attributes are bound directly to the current mouse position, creating a smooth, direct mapping between input and visual output.

Nnahsiloh

Mouse Follower

A smiling cartoon face follows the mouse cursor across a yellow SVG canvas. The face is assembled from React components, with a yellow circle for a head, black-outlined eyes, and a curved mouth drawn using D3’s `arc` path generator. Mouse movement is tracked via an `onMouseMove` event listener, storing coordinates in React state and updating the rendered position of the face. D3 v6 provides the arc geometry, while React manages the interactive SVG rendering.

CCarolineZhou

Mouse Follower

A yellow smiley face with eyes and a mouth follows the mouse cursor across an SVG canvas. The React app tracks pointer movement via the `onMouseMove` event, updating the face's position through `useState` and `useCallback` hooks. The face is composed of reusable React components (`Face`, `Eyes`, `Eye`, `Mouth`), with the mouth drawn using a `d3.arc()` path generator. The rendering is entirely SVG-based, with a single `<circle>` for the face, two smaller circles for eyes, and a filled arc for the mouth, all positioned relative to the current mouse coordinates.

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