Abstract: To resolve problems of perspective drawing in architecture design sketching, the
paper presents a simplified method which is applied with ruler and compasses. Three special
principles are generalized from the basic principle of perspective drawing as follows: selection of
an ideal angle, drawing method with vanishing points outside drawing plate, and usage of sub
measuring points. Based on the spatial relation of some auxiliary points and key points, this
method gives play to the comprehensive functions of the three principles so as to simplify the
drawing processes. The experimental results show that an ideal perspective drawing can be
obtained in an easy manner without relying on the perspective point of drawing plane and visual
angle.

Key words: engineering graphics, simple drawing method, integration of principles, ideal
angle, two-point perspective