Reflection and perpendicular translation: Generates another reflection parallel to the previous one that passes through the middle of the translation vector.
Fig. 19. Combination of reflection and perpendicular translation.
Reflection and parallel translation: Generates a glide plane.
Fig. 20. Combinación de reflection and parallel translation.
Reflection and general translation: Generates a glide plane parallel to the previous one that passes through the middle of the translation vector.
Fig. 21. Combination of reflection and general translations.
