| 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 );
|
