Conversion
formulas between absolute points
and local angles
lThe Ramsete program saves the coordinates of
three points in the absolute
reference system:
- Pprov º (xprov,
xprov,
xprov)
= provenience point of the ray;
- Orec º (xrec, yrec,
zrec)
= receiver origin;
- Ptarg º (xt, yt,
zt) =
receiver target point.
First of all, the
position of the provenience point of the ray is recomputed in the local reference system:
Pprov º> P’prov (x’prov, y’prov,
z’prov)