dv.14 - Mouse Follewer

dv2020-ep14-viz14 - Mouse Follow

A circle follows the mouse as it moves over an SVG canvas. The visualization tracks the cursor’s client coordinates and updates the circle’s center position in real time. Built with React hooks (`useState` and `useCallback`), it handles mouse movement via the SVG `onMouseMove` event, re-rendering the circle’s `cx` and `cy` attributes. The example uses React 16.9 and ReactDOM for rendering, with a static SVG viewport of 960 by 500 pixels.

Zzach b.

Mouse Follower

A full-screen SVG circle follows the user's mouse in real time, updating its center position with every pointer movement. The example shows React state management driving SVG rendering, where the circle's `cx` and `cy` attributes are bound to the current mouse coordinates tracked via `onMouseMove`. The code uses React's `useState` and `useCallback` hooks within a functional component, rendering through `ReactDOM.render`. No data source is involved; the visual is purely interactive, with the circle radius fixed at 30 pixels and initial position centered on the viewport.

LLeandro Da Souza

Mouse Follower

A full-screen SVG circle follows the mouse cursor in real time, with its center tied directly to the pointer’s clientX and clientY coordinates. Built with React, the example uses the `useState` and `useCallback` hooks to track mouse position and update the circle’s `cx` and `cy` attributes on every move. Rendering is handled via ReactDOM to an SVG element that spans the entire browser window, with no explicit data source beyond user input.

JJames Rhodes

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 circle follows the mouse cursor across a full-screen SVG, changing position live as the pointer moves. The visualization uses React state and the `useState` hook to track mouse coordinates, with a `useCallback` handler for `onMouseMove` events on the SVG element. The circle’s center is set to the cursor’s client coordinates, and its fixed radius of 30 pixels is defined as a constant. The example demonstrates a minimal React-rendered interactive graphic without external data sources or charting libraries.

Aaramaki-san

Mouse Follower

A circle follows the mouse cursor across a full-screen SVG canvas. The visualization demonstrates real-time interaction by updating the circle's center coordinates to match the pointer’s position. Built with React 16.9, it uses the `useState` hook to track mouse coordinates and the `onMouseMove` event handler on the SVG element. The rendering is handled entirely through SVG, with the circle’s `cx` and `cy` attributes updated on every mouse movement.

WwiebsS

Mouse Follower

A circle follows the mouse cursor within an SVG canvas, with its center position updating live to match the pointer's coordinates. The visualization uses React's `useState` and `useCallback` hooks to manage cursor tracking, while `ReactDOM` renders the SVG element and its circle to the page. The SVG's `onMouseMove` event handler captures the cursor position, and the circle's `cx` and `cy` attributes are updated accordingly with a fixed radius of 30 pixels.

Hhukbk

Mouse follower

A circle follows the mouse cursor across an SVG canvas, creating a simple interactive visual response. The React application tracks cursor position through an `onMouseMove` event handler, updating state via the `useState` and `useCallback` hooks, and renders the circle using D3 v7 within an SVG element. The circle’s center coordinates are dynamically bound to the latest mouse position, with a fixed radius of 30 pixels.

Jjoneftali