ABSTRACT
This chapter addresses the issue of drawing a form that has no dimensions parallel to the ground or the picture plane. Lines parallel to the ground connect to vanishing points on the horizon line, and lines parallel to the picture plane have no vanishing points. When a cuboid is drawn with no lines parallel to the ground plane or the picture plane it will have three vanishing points, none of them located on the horizon line. This chapter addresses how to properly locate these vanishing points, and how to draw and measure an object whose corner is perpendicular to the ground plane.
