diff options
Diffstat (limited to 'src/Panorama.cxx')
| -rw-r--r-- | src/Panorama.cxx | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/src/Panorama.cxx b/src/Panorama.cxx index 8a296aa..61ba781 100644 --- a/src/Panorama.cxx +++ b/src/Panorama.cxx @@ -415,7 +415,7 @@ Panorama::update_close_mountains() { if (m->flags & Hill::TRACK_POINT || ((m->phi != view_phi || m->lam != view_lam) && - (m->height / (m->dist * EARTH_RADIUS) + (m->height / (m->dist * get_earth_radius(m)) > height_dist_ratio))) { close_mountains->add(m); @@ -521,3 +521,20 @@ Panorama::nick(double dist, double height) { return beta - pi_d / 2.0; } +double +Panorama::get_earth_radius(Hill *m) { + return EARTH_RADIUS; +} + +double +Panorama::get_real_distance(Hill *m) { + double a, b, c, gam; + + a = view_height + get_earth_radius(m); // using m here is not quite right + b = m->height + get_earth_radius(m); + gam = m->dist; + + c = sqrt(pow(a, 2.0) + pow(b, 2.0) - 2.0 * a * b * cos(gam)); + return c; +} + |