double u_v_det = (it->x - it_previous->x) * (it_next->y - it->y) -
(it->y - it_previous->y) * (it_next->x - it->x);
- double norme_u = sqrt ( (it->x - it_previous->x)*(it->x - it_previous->x) +
- (it->y - it_previous->y)*(it->y - it_previous->y) );
+ double norme_u = sqrt ( double(it->x - it_previous->x) * double(it->x - it_previous->x) +
+ double(it->y - it_previous->y) * double(it->y - it_previous->y) );
- double norme_v = sqrt ( (it->x - it_next->x)*(it->x - it_next->x) +
- (it->y - it_next->y)*(it->y - it_next->y) );
+ double norme_v = sqrt ( double(it->x - it_next->x) * double(it->x - it_next->x) +
+ double(it->y - it_next->y) * double(it->y - it_next->y) );
double u_v_sinus = u_v_det / (norme_u * norme_v);