Can cell 4880000008 see its neighbour?
A curvature-corrected line-of-sight from this Dharashiv cell to its nearest neighbour, traced over the 30 m DEM and building-height surface. The physics is field-determined; outside the raster footprint, or across DEM nodata, the engine refuses rather than ever assuming "visible".
Line-of-sight refused — outside raster support
no 30 m raster support for admin 488 This is the honest answer: visibility is gated to the 30 m DEM + building-height footprint, and a sight-line that leaves that footprint (or crosses DEM nodata) is refused rather than ever silently reported as "visible". A refusal is content here, not an error.
Many MH-36 cells fall outside the building-height raster footprint, where line-of-sight is not yet determinable. Missing is never "visible".
Re-witness this sight-line
curl -s https://api.gridrock.ai/mcp -H 'Content-Type: application/json' \
-H 'Accept: application/json, text/event-stream' \
-d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"visibility",
"arguments":{"observer_lat":17.665,"observer_lng":76.425,"target_lat":17.665,"target_lng":76.415}}}'Scope: the live MH-36 cube. Line-of-sight is computed over the served 30 m DEM + AGBH surface with curvature + refraction; it is never interpolated past the raster footprint.