Essentials of Perspective: With Illustrations Drawn by the Author (1887)
Miller, Leslie William, 1848-1931 · New York: C. Scribner's Sons · leaf 60
then, we have all the necessary conditions of a perspective problem accuratelystated on the paper. It is not by any means necessary that this statement should be based upon actualmeasurement of the object and its position, as books on perspective usually say it is. But it is necessary,when the… … Fig. 53- MEASUREMENT BY MEANS OF TRIANGLES. 61 in Fig. 54. This is not a difficult matter at all, and may be determined without once thinking about theobservers distance from either the picture or the object. Let us see what the requirements really are. In the first place it is necessary, when you…
Perspective · Drawing -- Study and teaching
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