NEW
FOUNDATION - NEW SYSTEM
The
total conquest of space in exact perspective represents the landmark
of a new era in the drawing world.
With the
discovery of the square on a shortening (scorcio) scale in any type
of perspective, the depth is no longer a taboo; hence, one can work
the three-dimensional space in millimeters.
Try to
do the following test:- Bring your hand close to your eyes and then
slowly move it away until ensuring perfect visual sharpness. You will
notice that you need a 17-cm space to have a sharp vision.
Therefore,
I considered two overlapped images to draw in perspective:
one out-of-focus image very close to the eyes and another sharp and
well focused image 17cm farther.
According
to Pythagoras, the symmetry of the flat space is a square. Therefore,
in my opinion, the horizontal flat surface, the visual field, is simply
the result of two overlapped squares 17cm apart from each other.
When we
focus an image at the closest point, our vision does not reach beyond
2.60m or 2.70m. I considered a 3-m square to facilitate the construction
of the drawings.

Remark:
The out-of-focus vision is at the right and left side of the viewer.