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A6 - Diverging Bar Chart

✓ Published0🌍 Public
RRavneet Singh Bhatia
Last edited Mar 4, 2024
Created on Mar 4, 2024

This diverging bar chart visualizes the change in state population from 2020 to 2023, using a diverging color scale to distinguish growth (steelblue) from decline (lightpink). The chart renders the top ten states by population change, with bars extending from a central zero axis. Built with d3.js, it employs `d3.scaleLinear` for the numeric axis, `d3.scaleBand` for categorical states, and `d3.legendColor` for the legend, while an axis is drawn using `d3.axisBottom` and `d3.axisLeft`.

AI-generated description

A blank slate starting point showing the "Hello World" for the VizHub V3 Runtime Environment, which supports continuous hot reloading with interactive widgets.

  • There is no index.html - that's what triggers the V3 Runtime
  • The entry point is the main function exported from index.js
  • The main function takes an argument container, a DIV that has measurable dimensions using clientWidth and clientHeight
  • The second argument to main is an options object containing state and setState.
  • The state of the application is stored in state, which is initialized as an empty object {}.
  • The setState function can be called with a function that uses the previous state to create a new state object using immutable update patterns.
  • For an interactive example, see Mouse Follower.

Full course playlist: YouTube: Constructing Visualization 2024.

MIT Licensed

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