Level Perspectives or so-called (Parallel and Angular Perspectives) appear when the camera is set level. In other words, the center line of vision is level. Such perspective drawings appear to converge in one or two vanishing points, in accordance with the position of the object with respect to the observer. Thus, the verticals will always remain vertical in Level Perspective.
Those who study perspective drawing are familiar with only one method that involves the Station Point to define the verticals in perspective. However, horizontal structures, such as, patterns on the floor or ceiling, or any top projection would be hard to draw by applying the conventional method. My approach is using a method appropriate to the line-directions in the top view or the plan. Thus, there is one method for each of the skew lines, vertical lines and horizontal lines in the plan. Each method is simple as it only consists of two or three lines. The conventional method also consists of two lines which is appropriate for all vertical edges, but it can’t be applied to level structures. Interior Designs are hard to do using the conventional method. That is the reason to use freehand sketches in interior designs. However, it will be seen how easy to do interior perspectives using my methods.
Introduction
References
[1] UK Patent Application GB 2 069 938 A Published on 3rd of Sep. 1981. Inventor: Dhirgham Murran Series of letters related to the research were sent to Patent Agents: Barker, Brettell & Duncan. 138 Hagley Road, Edgbaston, Birmingham B16 9PW, England.
[2] A revised digital edition of the original manuscript (of 1980) New Methods in Perspective Drawing (Not Published) by Dhirgham Murran (2000) - Revised Copy. https://drive.google.com/file/d/11HcDnoRUp_mUANDzfohpJoA0FA_C0__O/view?usp=drivesdk