One object. Three parts. A hairline in Ember that spans the full width of its container, with measurement readouts at each endpoint. This is not a divider. This is an instrument reading. It appears at 61.8% height — the golden section — on every composition.
The scan line has exactly four states. Each state has fixed opacity values for both line and readouts. No ranges. No "approximately." The system is the system.
The readouts follow the format of actual 3D scanner output. This is not decoration. If someone who works with point clouds sees it, it should look correct.
Hover each demo to see the scan line transition from rest to active.
Same system, same rules. The scan line works identically on light backgrounds. The Ember is muted against warm sand tones but still present.
The scan line does not avoid content. It does not stop at headlines. It does not skip images. A scanner measures at a fixed coordinate, regardless of what is in its path. The designer composes around the line, not the other way around.
In print, the scan line can be produced as a spot varnish, a deboss, or a foil line instead of a printed color. This gives the line a physical dimension — you can feel it. The measurement becomes tactile.