Hill crest
The controlled 120 m crest interrupts the intended geometric sightline.
Anonymous frozen demo · DEMO-DRONE-01
Hillcrest Survey Corridor
Inspect a five-point, two-observer synthetic route with a controlled hill obstruction, partial source coverage, a NoData area and synthetic airspace context.
Flight terrain proof
A route that shows where visibility confidence changes.
Terrain relief and changing route confidence remain visible in one professional planning view.
01 / Expected findings
The fixture controls clear, warning, blocked and unknown states.
These states are assertions in the repository fixture package. They demonstrate the intended product contract; they do not describe a proposed real flight.
NoData zone
The missing terrain area remains unknown and is not replaced by zero elevation.
Synthetic review zone
The route crosses a synthetic area that requires review; it is not official airspace.
Overall data grade
The scene is exact synthetic evidence, not an independently surveyed operational site.
- Truth level
- exact-synthetic-public-demo
- Coordinate system
- LOCAL_ENU / SYNTHETIC-AMSL
- Route
- 5 points · 80 m AGL
- Observers
- OBS-A (pilot), OBS-B (observer)
- Required states
- clear, warning, blocked, unknown
- Report state
- draft
Frozen provider manifest
| Source | Publisher | Grade / type | Resolution | Datum | Health |
|---|---|---|---|---|---|
| fixture-terrain-surface-v1 | SighThor test fixtures | Preview · synthetic DTM/DSM | 1 m | SYNTHETIC-AMSL | current |
| fixture-airspace-v1 | SighThor test fixtures | Preview · synthetic polygon and vertical limits | 1 m | SYNTHETIC-AMSL | current |
02 / Limitations
Orientation context is not operational truth.
The UK origin helps make the example legible, but every finding is generated from a local synthetic scene.
- Synthetic deterministic terrain and airspace are used for product demonstration, not operational flight planning.
- The UK map origin is orientation context and does not describe a real proposed flight.
- The evidence pack remains draft planning support and is not a permit or authority decision.