Tài liệu tham khảo bằng tiếng Anh về hội họa - Norling Perspective Made Easy - Phần 4 | STEP FOUR THE THREE SETS OF PARALLELS LOCATING THE POINT AND THE EYE-LEVEL THE THREE SETS OF PARALLELS Here we have an ordinary brick. It has six sides but only three sides can be shown in the drawing. The lines of the drawing indicate where two of these sides join. If all sides of the brick were shown there would be twelve lines. The four long lines which indicate the length of the brick are parallel lines. The four lines of the width are parallel. The four lines of height or thickness are parallel. Now let us turn the brick so that we are looking straight along the length lines. The sketch on the next page shows it in this position. We now have the end view of the brick. .
