3D Motion Compass

Raw Sensor Data

Accelerometer–

x / y / z (calibrated)–

x / y / z (raw)–

magnitude–

gravity included–

calibration bias–

applying calibration–

Gyroscope

alpha (z rot)–

beta (x rot)–

gamma (y rot)–

Orientation / Compass

heading–

alpha–

beta–

gamma–

absolute–

Derived (3D orientation-corrected)

north vector (device frame)–

moving elevation–

smoothed magnitude–

velocity east/north/up (ZUPT)–

ground speed–

stationary?–

frame rate–

Tap × or back to close

Settings

Sphere

Radius0.75

Color

Transparency1.00

Water

Fill with water

Fill level0.33

Color

Transparency0.62

Wave intensity1.0

Viscosity (thin → honey)0.00

Gravity Lock (Sphere)

Bottom pole faces gravity

Response smoothing (s)0.25

Sensitivity

Motion threshold0.12

Responsiveness (smoothing)0.40

Arrow sensitivity5.0

Compass

Marker distance1.15

Update every (s)0.5

Min speed for direction (m/s)0.15

Average Direction (Thread)

Show thread

Averaging window (s)1.0

Anti-gravity rope

Rope length (× radius)2.20

Rope thickness1.5

Rope gravity0.25

Min speed to appear (km/h)5.0

Arrows

Max length2.6

Thickness1.0

Trail length6

Colors

Start hue (slow)190

End hue (fast)335

Glow intensity0.045

Graph

Show graph

Time window (s)15

Height (px)120

Line thickness2.0

Background opacity0.55

Show grid lines

Sound

Enable buzz

Waveform

Min frequency (slow)80

Max frequency (fast)900

Volume0.15

GPS

Use GPS (position, speed, distance)

Off by default. When on, replaces the drifting accelerometer speed with real GPS speed whenever available, and shows live position + distance in the top-left panel.

Stationary noise floor (km/h)1.0

GPS chips estimate speed from signal noise even standing still, so a small phantom reading (often 0.3–1 km/h) is normal, not a bug. Readings below this get shown as a clean 0.0.

Calibration

Calibrated Data (off = Raw)

Hold the phone still, then tap Calibrate (1s sample)

Performance

Balances visual quality and battery/CPU use.