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Diffstat (limited to 'src')
| -rw-r--r-- | src/Panorama.cxx | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/Panorama.cxx b/src/Panorama.cxx index aa358ec..aba5fbf 100644 --- a/src/Panorama.cxx +++ b/src/Panorama.cxx @@ -431,6 +431,8 @@ Panorama::alpha(const Hill *m) { return fmod(atan2(sin_alph, cos_alph) + 2.0 * pi_d, 2.0 * pi_d); } +// approximation of refraction effect as described by Tom Chester at +// http://tchester.org/sgm/analysis/peaks/refraction.html double Panorama::refraction(const Hill *m) { double a, b, c, alpha = 6.5, T0 = 10.0; |