| 1 |
{ SCCSid "$SunId$ LBL" } |
| 2 |
|
| 3 |
{ |
| 4 |
Source distribution coordinates (degrees). |
| 5 |
|
| 6 |
Theta is measured from the negative z-axis, |
| 7 |
phi is measured from the positive x-axis |
| 8 |
according to the right-hand rule. |
| 9 |
|
| 10 |
srcB_vert and srcB_horiz are angles |
| 11 |
used in type B photometry. |
| 12 |
|
| 13 |
A1 - optional multipier |
| 14 |
A2,A3,A4 - X,Y,Z dimensions of axis-aligned box |
| 15 |
} |
| 16 |
{ local definitions } |
| 17 |
norm_deg(d) : if( d, d, d+360 ); |
| 18 |
boxprojection = abs(Dx)*A3*A4 + abs(Dy)*A2*A4 + abs(Dz)*A2*A3; |
| 19 |
|
| 20 |
flatcorr(v) = corr(v) / Rdot; { correction for flat sources } |
| 21 |
corr(v) = if(AC-.5, A1*v, v); { multiplier correction } |
| 22 |
boxcorr(v) = A1 * v / boxprojection; { correction for emitting box } |
| 23 |
|
| 24 |
src_theta = Acos(Dz) / DEGREE; { 0-180 } |
| 25 |
src_phi = norm_deg( atan2(Dy, Dx) / DEGREE ); { 0-360 } |
| 26 |
{ bilateral symmetry } |
| 27 |
src_phi2 = tri( src_phi, 180 ); { 0-180 } |
| 28 |
{ quadrilateral symmetry } |
| 29 |
src_phi4 = tri( src_phi, 90 ); { 0-90 } |
| 30 |
|
| 31 |
{ Type B photometry coordinates } |
| 32 |
srcB_vert = atan( -Dx/Dz ) / DEGREE; |
| 33 |
srcB_horiz = Asin(Dy) / DEGREE; |
| 34 |
{ w/ bilateral symmetry } |
| 35 |
srcB_horiz2 = abs( srcB_horiz ); |
