Tài liệu tham khảo bằng tiếng Anh về hội họa - Norling Perspective Made Easy - Phần 3 | EP THREE PARALLEL LINES AS WE SEE THEM PARALLEL LINES RELATED TO ONE-POINT PERSPECTIVE PARALLEL LINES AS WE SEE THEM Instead of this way Knowing that the rails are parallel why do we not draw them this way The two rails of the track are always the same distance apart. When two or more lines always remain the same distance apart they are called parallel lines. In a perspective drawing we do not actually draw these lines parallel. Why not Let us look straight down on a person standing on the track and see what is happening. When he looks down at the track at his feet his eyes must take in a wide area in order to see both rails. .