ubik-valis

@ubik-valis·7 public vizzes

World Map

A world map visualization displays countries as teal landmasses with lighter graticules and interiors, rendered in SVG within a React component. It uses the `geoNaturalEarth1` projection via `d3.geoPath` to convert GeoJSON features, with `topojson.feature` and `topojson.mesh` processing the world-atlas TopoJSON data. Graticule lines and sphere outlines are drawn from D3’s `geoGraticule`, while CSS classes style the distinct map layers.

Jan 3, 2022

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Load Data into React

This example demonstrates how to load CSV data into a React application using D3 utilities. It displays a summary of the CSS named colors dataset, showing file size in kilobytes, row count, and column count as large text. The code uses the `useState` and `useEffect` hooks from React to manage the loading state, while D3’s `csv` function fetches and parses the data from a GitHub gist URL. The `message` function formats the statistics using `d3.csvFormat` to calculate the data size.

Dec 23, 2021

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Loading and Parsing CSV Data

This example demonstrates how to load and parse CSV data using D3 v5 and the Fetch API. It shows a large preformatted text element displaying the CSV file’s size in kilobytes, row count, and column count, derived from a gist containing named CSS colors. The code uses `d3.csv` to fetch and parse the data, `d3.csvFormat` to measure its length, and `d3.csvParse` for manual parsing, alongside plain `fetch` calls that log the raw text to the console.

Dec 23, 2021

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Mouse Follower

A smiley face drawn with SVG follows the mouse cursor in real time. The face is built from circles for the head, eyes, and mouth, and it tracks the pointer’s position across the full browser window. Using React’s `useState` hook and an `onMouseMove` event handler on the SVG element, the component updates its center coordinates on every cursor movement. The code relies on the React and ReactDOM libraries, rendering the dynamic graphic via JavaScript’s `window.innerWidth` and `window.innerHeight` to adapt to screen size.

Dec 23, 2021

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Fork of Fork of Let's Make a Face Part I

Ten randomly generated smiley faces are rendered in a grid using React and SVG. Each face uses a yellow background circle, two eyes, and a mouth arc drawn with the d3.arc() API. The `Face` component composes smaller components for the background, eyes, and mouth, with all geometry positioned relative to a central transform. Randomized values for stroke width, eye offset, eye radius, and mouth dimensions are set inline via `Math.random()` during each render.

Dec 22, 2021

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Fork of Let's Make a Face Part I

A stylized smiley face rendered in SVG, built with React and D3 v7, centers a yellow circle with a black stroke on a 960 by 500 canvas. The face uses D3's `arc()` generator to draw a mouth as a thick arc, while two offset circles serve as eyes. React manages the component structure, and D3 calculates the mouth’s path geometry based on specified radius and angle values. The example demonstrates composing SVG primitives with D3 shape generators inside a React render tree.

Dec 22, 2021

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Smiley Face Part 1

A yellow circle with a black outline, representing a smiley face, is centered on a blank page. Two smaller black circles serve as eyes. The visualization is a static SVG graphic created using the Scalable Vector Graphics API, with the entire composition defined directly in the `index.html` file. It does not animate or respond to user input. The data is purely geometric, drawn from hard-coded circle coordinates and radii.

Dec 22, 2021