Vanishing point as the "direction point", as lines having the same directional vector, say "D", will have the same vanishing point. Mathematically, let be a point lying on the image plane, where is the focal length (of the camera associated with the image), and let be the unit vector associated with , where . If we consider a straight line in space with the unit vector and its vanishing point , the unit vector associated with is equal to , assuming both are assumed to point towards the image plane. When the image plane is parallel to two world-coordinate axes, lines parallel
Parallel Lines remixes, plus a DVD with albums, promo videos and TV performance. The band also launched a world tour of the same name to promote the re-release and celebrate the event. !scope="row"align="left"|Australia (ARIA) Parallel Lines Parallel Lines is the third studio album by American rock band Blondie. It was released on September 23, 1978, by Chrysalis Records to international commercial success. The album reached No. 1 in the United Kingdom in February 1979 and proved to be the band's commercial breakthrough in the United States, where it reached No. 6 in April 1979. In "Billboard" magazine, "Parallel Lines" was listed at