Lamp
The only colour in the kit: a lamp that is on. Green is on, amber is waiting, red is recording or failing, blue is linked, white is standing by. Always next to words.
Kit parts
Ring meter
The kit’s donut chart as an instrument: a ring of lamps behind dark glass in a spun bezel, lit clockwise from twelve like a studio clock’s seconds, with the value in lit digits in the middle.
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Anatomy
Plain DOM. The glass is the kit’s display black with a glare fixed upper left; the bezel is the knob’s spun metal with an engraved zero mark at twelve. The digits are Geist Mono in the VFD’s light and sized in container units, so a ring of any size keeps its proportions.
Variants
- A share · with an inner ring
- Countdown · what is left
- Time left · one amber colour
- no inner ring
States
- Empty
- Under way
- Past warning
- Past alarm
- Full
- No reading
Props and options
| Name | Kind | Description |
|---|---|---|
| value | attribute · property | The reading. Setting it steps the lamps round: a whole turn in about half a second. |
| min · max | attribute | The scale: the full ring. |
| label | attribute | Printed in the glass under the digits, and the meter’s accessible name. |
| unit · unit-text | attribute | Beside the digits; the spoken form for aria-valuetext. |
| warn · alarm | attribute | Where every lit lamp turns amber, then red. Alarm under warn means low is bad (a budget left). |
| lamp | attribute | The colour below the lines, or the one colour: amber for a run that is still working. |
| segments | attribute | |
| inner · inner-label | attribute · property | A second share on small dots inside, lit in display light, with its own line of words. |
| mode | attribute | The ring is what is left: lamps go out from twelve, clockwise, as the value runs down. |
| format | attribute | The value is seconds, shown as 4. |
| decimals | attribute | Decimals in the digits and the words. |
| data-zone · data-lamp · data-state | attribute | The line the value is past, the lamps’ colour, and whether the lamps are stepping. |
| Keyboard | keyboard | Nothing in it takes focus: a meter is read, not operated. Its value is in the accessibility tree. |
Usage notes
Read usage: the lamps step round to the new share. The run’s countdown goes out from twelve, a lamp every ten seconds. Every state is below.
Accessibility
- The lamps, the dots and the digits are its picture and are hidden from assistive technology. It takes no focus.
- Colour is never alone: the digits give the figure, the arc gives the share, and the words name the line.
- Reduced motion: the lamps jump to the reading. Nothing blinks.
