| 10 |
|
srcB_vert and srcB_horiz are angles |
| 11 |
|
used in type B photometry. |
| 12 |
|
|
| 13 |
< |
A1 - optional multipier |
| 13 |
> |
boxcorr function corrects for distribution modeled |
| 14 |
> |
with a rectangular box. lboxcorr provides a more |
| 15 |
> |
accurate calculation for nearby surfaces, but requires |
| 16 |
> |
that the source box be centered at the origin. |
| 17 |
> |
|
| 18 |
> |
A1 - optional multipier |
| 19 |
> |
A2,A3,A4 - X,Y,Z dimensions of axis-aligned box |
| 20 |
|
} |
| 21 |
+ |
{ local definitions } |
| 22 |
+ |
norm_deg(d) : if( d, d, d+360 ); |
| 23 |
+ |
boxprojection = abs(Dx)*A3*A4 + abs(Dy)*A2*A4 + abs(Dz)*A2*A3; |
| 24 |
+ |
lboxprojection = ( noneg(abs(Px-Dx*Ts)-A2/2)*A3*A4 + |
| 25 |
+ |
noneg(abs(Py-Dy*Ts)-A3/2)*A2*A4 + |
| 26 |
+ |
noneg(abs(Pz-Dz*Ts)-A4/2)*A2*A3 ) / Ts; |
| 27 |
|
|
| 28 |
|
flatcorr(v) = corr(v) / Rdot; { correction for flat sources } |
| 29 |
|
corr(v) = if(AC-.5, A1*v, v); { multiplier correction } |
| 30 |
+ |
boxcorr(v) = A1 * v / boxprojection; { correction for emitting box } |
| 31 |
+ |
lboxcorr(v) = A1 * v / lboxprojection; { local box correction } |
| 32 |
|
|
| 33 |
|
src_theta = Acos(Dz) / DEGREE; { 0-180 } |
| 34 |
|
src_phi = norm_deg( atan2(Dy, Dx) / DEGREE ); { 0-360 } |
| 36 |
|
src_phi2 = tri( src_phi, 180 ); { 0-180 } |
| 37 |
|
{ quadrilateral symmetry } |
| 38 |
|
src_phi4 = tri( src_phi, 90 ); { 0-90 } |
| 25 |
– |
|
| 26 |
– |
norm_deg(d) : if( d, d, d+360 ); |
| 39 |
|
|
| 40 |
|
{ Type B photometry coordinates } |
| 41 |
|
srcB_vert = atan( -Dx/Dz ) / DEGREE; |
