Commit 884bc9b0 by Michael Muré

### libgimpmath: add a function that compute the normal vector to an other

parent fb737d21
 ... ... @@ -451,6 +451,48 @@ gimp_vector2_rotate_val (GimpVector2 vector, return result; } /** * gimp_vector2_normal: * @vector: a pointer to a #GimpVector2. * * Compute a normalized perpendicular vector to @vector * * Returns: a #GimpVector2 perpendicular to @vector, with a length of 1.0. **/ GimpVector2 gimp_vector2_normal (GimpVector2 *vector) { GimpVector2 result; result.x = vector->y; result.y = - vector->x; gimp_vector2_normalize (vector); return result; } /** * gimp_vector2_normal_val: * @vector: a #GimpVector2. * * This function is identical to gimp_vector2_normal() but the vector * is passed by value rather than by reference. * * Returns: a #GimpVector2 perpendicular to @vector, with a length of 1.0. **/ GimpVector2 gimp_vector2_normal_val (GimpVector2 vector) { GimpVector2 result; result.x = vector.y; result.y = - vector.x; gimp_vector2_normalize (&result); return result; } /**************************************/ /* Three dimensional vector functions */ /**************************************/ ... ...
 ... ... @@ -85,6 +85,8 @@ void gimp_vector2_rotate (GimpVector2 *vector, gdouble alpha); GimpVector2 gimp_vector2_rotate_val (GimpVector2 vector, gdouble alpha); GimpVector2 gimp_vector2_normal (GimpVector2 *vector); GimpVector2 gimp_vector2_normal_val (GimpVector2 vector); /* Three dimensional vector functions */ /* ================================== */ ... ...
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!