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REPRODUCTION NOTES / 10

How FIELD TELEMETRY
was made.

Signature technique: Accessible live Canvas charts + hover tooltips. The page is one dependency-light HTML document with embedded styles and scripts; this guide is a second self-contained document using the same visual language.

Build sequence

01

Generate deterministic streaming sensor samples.

02

Give each chart exactly one labeled y-axis.

03

Use the Okabe–Ito colorblind-safe palette.

04

Mirror hover values into an ARIA live region.

Reproduce it

Copy the parent index.html, preserve the semantic landmarks, then isolate the render loop from the content layer. Keep canvas and 3D surfaces aria-hidden; the story must remain complete without them. Cap device pixel ratio at 2 for expensive scenes, listen to prefers-reduced-motion, and test the final composition at 375px before publishing.

Why this technique

Accessible live Canvas charts + hover tooltips is not decoration here: it carries the site's central metaphor. That alignment between subject and mechanism is what keeps a technical showcase from becoming a demo reel.