edge_points[i].x = center.x+circle_radius*(e_v1.x*sin(angle)+e_v2.x*cos(angle));
edge_points[i].y = center.y+circle_radius*(e_v1.y*sin(angle)+e_v2.y*cos(angle));
edge_points[i].z = center.z+circle_radius*(e_v1.z*sin(angle)+e_v2.z*cos(angle));


edge_points[i].x = center.x + major_len*e_v1.x*cos(angle)+minor_len*e_v2.x*sin(angle);
edge_points[i].y = center.y + major_len*e_v1.y*cos(angle)+minor_len*e_v2.y*sin(angle);
edge_points[i].z = center.z  + major_len*e_v1.z*cos(angle)+minor_len*e_v2.z*sin(angle);