Moise

@moiseuwimana·6 public vizzes

Loading and Parsing CSV Data

This example demonstrates how to load and parse a remote CSV file using D3 v7. It fetches CSS named colors data from a GitHub gist and displays the file size, row count, and column count in a large <pre> element. The code uses `d3.csv()` to retrieve and parse the data, then computes the formatted size with `d3.csvFormat()`, while also showing commented alternatives using `fetch()`, async/await, and `d3.csvParse()` for manual parsing.

Aug 24, 2023

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Mouse Follower

A circle follows the mouse cursor across an SVG canvas, updating its position in real time. The example uses React's `useState` and `useCallback` hooks to manage mouse coordinates, with the `onMouseMove` event handler updating the circle's center. D3's `arc` module is imported but not used, while the SVG `<circle>` element is rendered directly through ReactDOM. The visualization demonstrates a simple interactive pattern without any data source or animation logic beyond direct mouse tracking.

Aug 24, 2023

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Fork of Smiley Face Part II

This example shows a yellow smiley face rendered with two empty black eye circles on a solid yellow head, all centered and sized according to the browser window. The visualization uses React and ReactDOM to construct an SVG scene, with a `<g>` transform translating the origin to the viewport center before drawing each circle. The head and eyes are positioned using constants for offsets, radii, and stroke width, and the layout adjusts dynamically to the window’s width and height.

Aug 24, 2023

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Fork of Smiley Face Part I

A grid of eighteen randomly generated smiley faces fills the viewport, each rendered as yellow circles with black strokes, eyes, and a curved mouth. The faces vary in stroke width, eye placement, eye radius, and mouth dimensions due to randomized prop values passed to the `Face` component. Built with React and SVG, the visualization uses reusable components like `BackgroundCircle`, `Eyes`, and `Mouth`, with the mouth path created using `d3.arc` from d3.v7.

Aug 23, 2023

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Smiley Face Part I

A grid of smiley faces is rendered, each face constructed from SVG primitives including a yellow background circle, two eyes, and a mouth. The example demonstrates the use of React components to assemble a reusable face, with facial feature properties like eye offset, radius, and mouth dimensions randomized per face. The mouth is drawn using d3’s arc function to create a half-circle path. Each face is rendered in an SVG container, with a black stroke on the yellow circle providing definition.

Aug 23, 2023

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Smiley Face Part I

This example is the first step toward building a smiley face, displaying only a single large yellow circle with a black outline. Rendered as an SVG element, the circle is positioned at the center of a 960 by 500 pixel canvas. The code uses React 18.2.0 via `ReactDOM.render` to mount the component, with the SVG markup defined directly in JSX. No additional data or interactivity is present, focusing purely on the static geometric shape.

Aug 22, 2023