1 files changed, 0 insertions, 18 deletions
diff --git a/src/solid_angle.c b/src/solid_angle.c
index dbac045..7201533 100644
--- a/src/solid_angle.c
+++ b/src/solid_angle.c
@@ -24,24 +24,6 @@ static double lookupTable[13][11] = {
 {1.0041,1.0051,1.0061,1.0070,1.0078,1.0106,1.0120,1.0122,1.0116,1.0097,1.0084}
 };
 
-double get_solid_angle_fast(double *pos, double *pmt, double *n, double r)
-{
-    /* Returns a *very* fast approximation of the solid angle subtended by a
-     * circular disk of radius r at a position `pmt` with a normal vector `n` from
-     * a position `pos`. */
-    double dir[3];
-    double R, cos_theta_pmt;
-
-    SUB(dir,pos,pmt);
-
-    /* Distance to the PMT. */
-    R = NORM(dir);
-
-    cos_theta_pmt = fabs(DOT(dir,n)/R);
-
-    return pow(r,2)*cos_theta_pmt/pow(R,2);
-}
-
 static double A(double u, double a, double h)
 {
     return atan(((a*a-h*h)*u - 2*a*a*h*h)/(2*a*h*sqrt((u-h*h)*(u+a*a))));