Harr

@harrdas·7 public vizzes

Polished World Map

This example presents a polished world map visualization, highlighting country boundaries and graticules against a stylized sphere. The map uses D3.js geo APIs, including `geoNaturalEarth1`, `geoPath`, and `geoGraticule`, to project and render the geographic features. The underlying boundary data comes from the World Atlas TopoJSON. The visualization is built within a React application, with `topojson` being used to process the topology into features for the sphere and land masses, with the land filled in a teal color.

Dec 23, 2021

Loading thumbnail…

Stylized Bar Chart

This stylized bar chart displays the top 10 most populous countries from the United Nations World Population Prospects 2019 dataset, using horizontal bars encoded with a linear scale for population and a band scale for country names. The visualization is built with React and D3 v5, rendering SVG elements through reusable components like AxisBottom, AxisLeft, and Marks, while tooltips show formatted population values in billions.

Dec 20, 2021

Loading thumbnail…

Smiley Face Part VI

A grid of eighteen randomly generated smiley faces fills the screen, each face rendered as a composition of SVG circles and a D3 arc path for the mouth. The faces vary in stroke width, eye offset, eye radius, and mouth dimensions, with each face independently randomized using `Math.random()`. The implementation uses React components for the face, eyes, and background, while importing the `arc` function from D3 to construct the mouth shape, and `range` from D3 to generate the array of faces. The SVG output is rendered through ReactDOM into the page.

Dec 20, 2021

Loading thumbnail…

Rotating Rendering Data with React & D3

A circular burst of CSS named colors rotates continuously, with each color occupying an equal-width arc segment radiating from the center. The visualization loads color data from a CSV file using D3’s `csv` utility, then processes it with `d3.pie` and `d3.arc` to generate SVG paths. React manages the animation state via `useState`, `useRef`, and `useEffect`, incrementing a rotation degree every 10 milliseconds to spin the entire group. The example demonstrates combining D3’s data manipulation and shape generation with React’s declarative rendering and lifecycle hooks for smooth, ongoing motion.

Nov 16, 2021

Loading thumbnail…

Donut of Rendering Data with React & D3

A donut chart displays CSS named colors as equal-sized slices, with each slice filled by its corresponding hex value. The entire donut rotates continuously, creating a slow animation driven by a React interval updating state. D3’s `arc` and `pie` utilities compute the slice geometries from CSV data loaded via `d3.csv`, while React renders the SVG paths. The visualization uses React hooks (`useState`, `useEffect`, `useRef`) to manage the animation loop and data fetching from a gist URL.

Nov 16, 2021

Loading thumbnail…

Fork of Smiley Face Part VI

A single smiley face is rendered as an SVG graphic using React components. The face consists of a yellow circle, two black eyes, and a mouth drawn with a D3 arc path. The React code randomly assigns values to stroke width, eye placement, eye radius, and mouth dimensions, so each refresh produces a new face. The implementation uses D3 v5's `arc` generator and `range` function, with the visualization built from modular React components and rendered via `ReactDOM.render`.

Oct 11, 2021

Loading thumbnail…

Fork of Smiley Face Part III

This example combines React and D3 to render a stylized smiley face as an SVG graphic. The face consists of a yellow circle, two square eyes, and a curved mouth drawn using D3’s `arc` and `line` generators with a basis curve. React manages the component structure and SVG elements, while D3 v5 computes the geometric paths and coordinate transformations. The data for the mouth’s curved line is an array of three points, and the visualization is drawn without any animation or interactive behavior, focusing purely on static geometric composition.

Oct 4, 2021