Essentials of Perspective: With Illustrations Drawn by the Author (1887)
Miller, Leslie William, 1848-1931 · New York: C. Scribner's Sons · leaf 61
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… … Fig. 54- that the lines drawn from it to the vanishing-points shall form a right angle with each other; and in thesecond place, the station-point must be just as far from eitlier vanishing-point as the corresponding measur-ingpoint is. You see that this will always have to be so because, as the…
Perspective · Drawing -- Study and teaching
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