Measure space

Skill sumitaich1998/jarvisvr/skills/navigation/measure-space

An AI agentic operating system for mixed reality on the Meta Quest 3 — your own J.A.R.V.I.S. Multi-agent orchestration, multimodal perception (sight/hearing/gaze), 42 holographic widgets, 20 LLM providers.

Install

npx -y skills add sumitaich1998/jarvisvr --skill measure-space

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Measure real-world distances, spans, areas, or angles between points in the room and show a measuring tape. Use for "how far is that?", "how wide is this desk?", "measure the wall", or "what's the distance between these?". Triggers: measure, how far, how wide, how tall, distance between, dimensions, span, area.

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SKILL.md

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Measure Space

Report a spatial measurement and render a measuring_tape between the relevant world points. Points come from detected objects, gaze hits, or user-placed taps.

Steps

Determine the endpoints. Two detected objects, two gaze/tap points, or a span the user indicates. measure will pick two scene points if none given.
Call measure. Returns data.distance_m, from, to, and a measuring_tape directive (mode:"distance").
Speak the result with sensible units; render the tape.
Refine interactively: add_point / move_point events extend or adjust the measurement → recompute and holo.update.
For area/angle, set the tape mode accordingly with 3+ points.

Helper script

To compute distance from raw coordinates without a live scene (tests, planning), use the bundled stdlib helper:

python3 scripts/distance.py 0,1,0.5 0,1,1.2          # -> 0.70 m
python3 scripts/distance.py --unit cm 0,1,0 1,1,0    # -> 100.0 cm

It mirrors the backend's Euclidean distance so props match what measure emits.

Output

measuring_tape (measure, props per registry.json):

{ "widget_type": "measuring_tape",
  "transform": { "anchor": "world" },
  "props": { "points": [ [0.0,1.0,0.0], [1.0,1.0,0.0] ], "unit": "m",
             "distance_m": 1.0, "mode": "distance", "label": "Desk width" },
  "interactions": ["grab","tap","drag","dwell"] }

agent.speech: { "text": "That's about 1.0 meter across.", "final": true }

Bundled resources

scripts/distance.py — pure-stdlib distance/area helper for x,y,z points.

Edge cases

Too few points → measure falls back to a span in front of the user; tell the user to look at / tap the two endpoints for accuracy.
No depth → estimates are rougher; say "about" and offer to refine with taps.
Unit conversion → present in the unit the user asked (m|cm|ft|in); store distance_m canonically.
Geographic distance (between cities) → that's show-map/wayfind, not a tape measure.