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greg |
1.1 |
{ SCCSid "$SunId$ LBL" } |
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{ |
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Source distribution coordinates (degrees). |
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Theta is measured from the negative z-axis, |
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phi is measured from the positive x-axis |
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according to the right-hand rule. |
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srcB_vert and srcB_horiz are angles |
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used in type B photometry. |
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A1 - optional multipier |
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} |
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flatcorr(v) = corr(v) / Rdot; { correction for flat sources } |
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corr(v) = if(AC-.5, A1*v, v); { multiplier correction } |
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src_theta = Acos(Dz) / DEGREE; { 0-180 } |
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src_phi = norm_deg( atan2(Dy, Dx) / DEGREE ); { 0-360 } |
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{ bilateral symmetry } |
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src_phi2 = tri( src_phi, 180 ); { 0-180 } |
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{ quadrilateral symmetry } |
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src_phi4 = tri( src_phi, 90 ); { 0-90 } |
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norm_deg(d) : if( d, d, d+360 ); |
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{ Type B photometry coordinates } |
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srcB_vert = atan( -Dx/Dz ) / DEGREE; |
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srcB_horiz = Asin(Dy) / DEGREE; |
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{ w/ bilateral symmetry } |
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srcB_horiz2 = abs( srcB_horiz ); |
