Dmytro Tyshchenko

@DmytroTys·6 public vizzes

Making a bar chart

This example shows a horizontal bar chart of population data for ten countries, using scaled bar widths to represent each country’s population in thousands. The visualization is built with D3 v5, using `d3.csv` to load the data, `d3.scaleLinear` for the x-axis, and `d3.scaleBand` for the y-axis categories. SVG rectangles are appended to a grouped `<g>` element with margins, and the population values are parsed and multiplied by 1000 before rendering. The chart displays the data directly without axes or labels, focusing on the bar lengths.

Nov 19, 2021

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Fork of Let's make a face with D3.js!

This example demonstrates a smiling face drawn with D3.js v5, using SVG shapes and a continuous animation to move its eyebrows. The code constructs the face from basic SVG primitives, including circles for the eyes and a path generated by the `d3.arc` API for the mouth. Eyebrow movement is achieved by chaining `transition().duration(2000)` calls, which animate the `transform` attribute of a group element back and forth. The visualization runs on an 960x500 canvas, centering the facial features with hardcoded offsets and using D3's DOM selection and manipulation functions.

Nov 19, 2021

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Fork of HTML Starter

This example demonstrates a minimal web page that loads D3.js via a CDN and renders a root element into which JavaScript draws content. It uses the D3 v5 library within an HTML structure, with a separate `bundle.js` file containing the application logic. The page initializes a blank `div` with the ID `root`, and the script leverages D3 to create dynamic visualizations. The setup shows a basic integration of D3.js into a standard HTML document, serving as a starting point for more complex projects.

Nov 17, 2021

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Fork of Smiley Face Part III

This example renders a smiling face as an SVG using React and D3.js. The drawing consists of a yellow circle with a black stroke, two solid black eyes, and a curved mouth created with D3’s `arc` generator, which builds the path for the smile. The face is centered and scaled according to fixed width and height values. React manages the component structure, while D3 calculates the arc geometry for the mouth.

Nov 17, 2021

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Loading data and Parsing CSV data.

This example demonstrates how to load and parse CSV data from a remote source using the Fetch API. It defines an asynchronous function, `fetchText`, that retrieves a text file from a GitHub gist URL containing CSS named colors. The code then logs the raw CSV content to the browser console, showing the loading process before any parsing or visualization occurs. The example relies on standard web APIs (`fetch` and `response.text()`) rather than external libraries like D3.

Nov 17, 2021

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Fork of Hello HTML

This interactive face built with React and rendered as SVG uses D3.js to define its mouth via the `arc` API, creating a semicircular path. The face comprises four reusable component files: `BackgroundCircle`, `Eyes`, `Mouth`, and `FaceContainer`. The `FaceContainer` wraps all elements and centers them using an SVG `<g>` transformation. Hardcoded dimensions position the eyes and mouth, while a yellow circle with a thick black stroke forms the head. This example demonstrates composing React components with D3 geometry helpers for straightforward, declarative graphics.

Nov 16, 2021