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Circles with D#

✓ Published0🌍 Public
SSafrin La Batu
Last edited Feb 28, 2024
Created on Feb 28, 2024

This example demonstrates a minimal interactive runtime environment where a large, resizable text element displays "Hello World!" centered within a container. The visualization shows how the text size remains fixed while the container dimensions can change, highlighting the dynamic layout behavior. The code uses the `main` function exported from `index.js`, which receives the container element and sets its inner HTML with inline styles. No external data or rendering libraries are used; instead, it relies on plain DOM manipulation to showcase the core pattern for building data visualizations in the VizHub V3 Runtime.

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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