npinta

@npinta·9 public vizzes

accumulator

This example demonstrates the array methods `reduce` and `map` in JavaScript, showing how to transform an array of key-value pair objects into a single object and how to map numbers to new objects with calculated properties. The code defines sample data and logs the results to the browser console, while the page displays a placeholder title with CSS styling. It uses plain JavaScript ES6 syntax, with no D3 or React logic present despite the framework metadata, and the HTML references an unmounted D3 script tag.

Dec 11, 2022

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Fork of Mouse follower

A smiley face made of a single circle follows the mouse cursor across a full-window SVG canvas. The React app tracks pointer movement through an `onMouseMove` event handler, storing the cursor’s client coordinates in state and re-rendering the circle’s `cx` and `cy` attributes based on that position. The code uses React 16.9’s `useState` and `useCallback` hooks, with D3 v7 loaded for potential visualization utilities, though the rendering itself is plain SVG without D3-specific data joins or scales.

Dec 11, 2022

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Loading and Parsing CSV Data

This example demonstrates how to load and parse CSV data using D3 v7, displaying summary statistics about the dataset. The code fetches a CSV file containing CSS named colors from a GitHub gist via `d3.csv`, then computes and renders the file size in kilobytes, row count, and column count into a large HTML `<pre>` element. It also logs the parsed array of objects to the browser console using `console.log`. The visualization highlights the basic workflow of asynchronous data loading and parsing with `d3.csv`.

Dec 11, 2022

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Mouse follower

A smiley face rendered as an SVG circle follows the mouse cursor across the browser viewport. The React application tracks pointer movement via an `onMouseMove` handler, updating the circle's `cx` and `cy` coordinates with the cursor's client position. The visualization uses React's `useState` and `useCallback` hooks to manage state, and D3.js is loaded for potential data manipulation, though the current implementation relies solely on SVG primitives within a React component.

Dec 11, 2022

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Smiley Face

This example shows a stylized smiley face constructed from reusable React components. The face consists of a yellow background circle, two black eyes, and a mouth drawn as an arc path, all centered within an SVG using a group translation. The code leverages React fragments and props to compose the `Face`, `BackgroundCircle`, `Eyes`, and `Mouth` components, while D3’s `arc` generator defines the mouth’s shape with specified radii and angles. The rendering is fully declarative, with dimensions and positions passed as props from the main `App` component.

Dec 11, 2022

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Fork of Smiley Face Part II

This example shows a full-window smiley face rendered with React and SVG. The face adapts to the browser viewport, centering its circular head and positioning two eyes symmetrically around the center using static offset values. The code uses React 16.9.0 to create SVG elements, including a yellow circle with a black stroke for the head and two plain black circles for the eyes. The rendering approach relies on ReactDOM to mount the component into the DOM, with dimensions calculated from `window.innerWidth` and `window.innerHeight`.

Dec 10, 2022

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Full Sol LeWitt Reproduction with D3

This visualization reproduces a Sol LeWitt drawing by layering horizontal and vertical striped rectangles across the full canvas. It applies two SVG masks—one using a large circular path generated with `d3.symbol`/`d3.symbols` and the other a plain circle—to reveal different sections of the line grid. Built with D3 v7’s `select`, `range`, and `join` methods, the code dynamically creates 100 rows and columns of thin rectangles. The static example uses no external data, relying entirely on procedural generation within an SVG rendered by React.

Oct 22, 2022

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Sol LeWitt Reproduction with D3

This example reproduces a Sol LeWitt wall drawing using D3 to generate intersecting horizontal and vertical SVG rectangles. A pair of SVG masks with circular cutouts reveal the lines only within two offset circles, creating an optical moiré pattern across the full viewport. The code uses `d3.select`, `d3.range`, and SVG `mask` elements, rendering 100 stripes in each direction with dimensions tied to `window.innerWidth` and `window.innerHeight`. The result is a precise, generative interpretation of LeWitt’s geometric style, driven entirely by D3’s data join and SVG primitives.

Oct 22, 2022

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Sol LeWitt Reproduction

This example reproduces a Sol LeWitt wall drawing using pure browser APIs, with no external libraries. It renders 100 horizontal and 100 vertical rectangles in SVG, layered so that a circular mask reveals the grid pattern at the center while masking the opposite orientation at the edges. The code constructs the SVG, masks, and shapes programmatically via `document.createElementNS`, setting attributes like `fill`, `r`, and `mask` on each element. The layout adapts to the full viewport size using `window.innerWidth` and `window.innerHeight`.

Oct 22, 2022