1. Assistant Professor, Dept. of Applied Mechanics and Project Engineering, Univ. of Castilla-La Mancha, Ave. of España, s/n, 02071 Albacete, Spain (corresponding author).
2. Tenured Professor, Dept. of Graphic Engineering, Univ. of Sevilla, Utrera Rd., km 1, 41013 Sevilla, Spain.
3. Assistant Professor, Dept. of Graphic Engineering, Univ. of Sevilla, Utrera Rd., km 1, 41013 Sevilla, Spain.
4. Full Professor, Dept. of Engineering, Univ. of Almeria, Sacramento Rd., s/n, 04120 Almeria, Spain.