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90

On simple and complex perspective.

SIMPLE PERSPECTIVE.

Simple perspective is that which is constructed by art on a vertical plane which is equally distant from the eye in every part. Complex perspective is that which is constructed on a ground-plan in which none of the parts are equally distant from the eye.

Taken from The Notebooks of Leonardo da Vinci edited by Jean Paul Richter, 1880.

89 * 91
I * III
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Notebooks of Leonoardo da Vinci
II: Linear Perspective.
. . .
The function of the eye as explained by the camera obscura.
70,
71
The practice of perspective.
72,
73
Refraction of the rays falling upon the eye.
74,
75
The inversion of the images.
76
The intersection of the rays.
77,
78,
79,
80,
81,
82
Demomstration of perspective by means of a vertical glass plane.
83,
84,
85
The angle of sight varies with the distance.
86,
87,
88
Opposite pyramids in juxtaposition.
89
On simple and complex perspective.
90
The proper distance of objects from the eye.
91,
92
eye.
93,
94,
95,
96,
97,
98
The apparent size of objects defined by calculation.
99,
100,
101,
102,
103,
104,
105,
106
On natural perspective.
107,
108,
109
. . .