Binakael (binakel, binakol, binakul) (transliterated, "to do a sphere") is a type of weaving pattern traditional in the Philippines. Patterns consisting entirely of straight lines are woven so as to create the illusion of curves and volumes. A sense of motion is also sought. Designs are geometric, but often representational. The techniques create op-art designs, and were popular by the late 19th century, when the United States colonized the Philippines, and American museums collected many traditional Philippine textiles.