Abstract
First, we properly arrange a given pair of orthogonal projections or in general parallel projections in space E3. Secondly, we take a picture of these figures. Finally, we magnify or reduce the photographs to make some copies. Properly arranging these copies on a plane and projecting them from two points on the plane, we can construct perspective drawing. This paper presents the geometrical principle of this new method of obtaining perspective drawing, the arrangement of parallel projections in E3, the notice on photographing, the method of drawing, the characteristic of this method and examples.
