function framingDistance
observer.ts:278
framingDistance(radius: number, fovDeg: number, fill: number) → number
The distance at which a sphere of radius fills fill of the frame height.
fill is the fraction of the vertical field of view the body's diameter
subtends, so 1 is edge-to-edge and the useful framing is nearer 0.6 — a disk
with space around it, which is how every planetary photograph anyone
recognizes is composed. See shots.ts, which makes the same argument in
body radii for a fixed lens.
- radiusnumber
- Undocumented
- fovDegnumber
- Undocumented
- fillnumber
- Undocumented
Returnsnumber