Computes the coordinates of the midpoint of the given #graphene_triangle_t.
The midpoint G is the centroid of the triangle, i.e. the intersection of its medians.
return location for the coordinates of the midpoint
1.2
See Implementation
Computes the coordinates of the midpoint of the given #graphene_triangle_t.
The midpoint G is the centroid of the triangle, i.e. the intersection of its medians.