added radians to degrees function

2 files changed, 5 insertions, 0 deletions

diff --git a/src/math.c b/src/math.c
index 82328b7..3993223 100644
--- a/src/math.c
+++ b/src/math.c
@@ -49,6 +49,10 @@ real distance2(c2_t p1,c2_t p2) {
  return sqrtl(( (p1.x-p2.x)*(p1.x-p2.x) )+( (p1.y-p2.y)*(p1.y-p2.y) ));
 }
 
+degrees r2d(radians r) {
+ return (degrees){(r.r * (real)180 / M_PIl) };
+}
+
 radians d2r(degrees d) {
  while(d.d<0) d.d+=360;
  return (radians){(real)(d.d%360) / (real)180 * M_PIl};
diff --git a/src/math.h b/src/math.h
index f369082..40121ea 100644
--- a/src/math.h
+++ b/src/math.h
@@ -14,6 +14,7 @@ c3_t rotate_c3_yr(c3_t p1,c3_t p2,radians yr);
 c3_t rotate_c3_zr(c3_t p1,c3_t p2,radians zr);
 c3_group_rot_t *get_group_rotation(char *id);
 radians d2r(degrees d);
+degrees r2d(radians r);
 radians points_to_angle(c2_t p1,c2_t p2);
 
 #endif