Crawshaw, Fred D. (Fred Duane), b. 1874, Phillips, J. D. (James David), 1869- joint author · Chicago, New York, Scott, Foresman and company · leaf 312
d by three coordinates as shown.The lengths A B, B D, and D E are taken from the orthographicviews and laid off on the isometric in the directions parallel toeach of the three axes, respectively. Isometric Circles. Circles may be drawn by locating pointsas described above, or by the four-center… … Fig. 344. Locatiiv^g Points on Non-Isometric Lines Using Three Coordinates
Mechanical drawing
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![An illustration from Divina proportione : opera a tutti glingegni perspicaci e curiosi necessaria oue ciascun studioso di philosophia: prospettiua pictura sculptura: architectura: musica: e altre mathematice: suavissima: sotile: e admirabile doctrina consequira: e delecterassi: co[n] varie questione de secretissima scientia (1509)](https://img.insideoutlibrary.com/img/200/ia-divinaproportion00paci-55-82.webp)
