#include "cxxutils.h"
#include "vec3.h"
Go to the source code of this file.
Functions | |
double | orientation (const vec3 &loc, const vec3 &dir) |
Copyright (C) 2003 Max-Planck-Society
Reinhard Hell
Definition in file geom_utils.h.
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outputs the orientation when looking from point loc on the unit sphere in the direction dir. loc must be normalized. The result ranges from -pi to pi, is 0 for North and pi/2 for West, i.e. the angle is given in mathematically positive sense. If loc is the North or South pole, the returned angle is atan2(dir.y,dir.x). Definition at line 45 of file geom_utils.h. |