Kenji / ケンジ

@jp-knj·2 public vizzes

Fork of Loading and Parsing CSV Data

This example demonstrates how to load and parse CSV data using D3 v5, displaying the parsed dataset’s size in kilobytes, row count, and column count as large text. The code uses `d3.csv` with a Promise to fetch the CSS Named Colors dataset from a GitHub gist, then formats the result via `d3.csvFormat` to calculate its byte size. An alternative commented-out approach uses the Fetch API with `async`/`await` and `d3.csvParse` to achieve the same outcome, highlighting different asynchronous patterns available in modern JavaScript.

Mar 19, 2021

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Fork of React + D3 Viz Starter

This example renders a simple, smiley face composed of SVG shapes using React components and D3’s arc generator. A yellow background circle, two black eyes, and a curved mouth are centered within a fixed 960×500 viewport, with dimensions passed as props. The code imports `arc` from `d3` to compute the mouth path, while React handles component composition and state-free rendering. The face is drawn declaratively through reusable components like `BackgroundCircle`, `Eyes`, and `Mouth`, all nested inside a `FaceContainer` that applies a translation transform.

Mar 19, 2021