Circles with D#
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 descriptionA 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
mainfunction exported fromindex.js - The
mainfunction takes an argumentcontainer, a DIV that has measurable dimensions usingclientWidthandclientHeight - The second argument to
mainis an options object containingstateandsetState. - The state of the application is stored in
state, which is initialized as an empty object{}. - The
setStatefunction 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.