Crawshaw, Fred D. (Fred Duane), b. 1874, Phillips, J. D. (James David), 1869- joint author · Chicago, New York, Scott, Foresman and company · leaf 36
ractice iii making a perspective ofthe unit of measure and basic form in perspective—the cube.The one-inch cube will be used in the following plates as ameans of constructing and proportioning the perspective sketchesof more complex objects. A Scale of Levels. Fig, 21 shows a horizontal square at… … Fig. 21. Vafjation op Area with Level area of the figure representing the square and the angle ofinclination increase with the distance below the level of the eye.The distance below the level of the eye of the front corner ofeach square, Fig. 22, is indicated by the numerals at the left ofthe…
Mechanical drawing
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