Freehand perspective and sketching; principles and methods of expression in the pictorial representation of common objects, interiors, buildings and landscapes (1910)
Norton, Dora Miriam · Brooklyn : D. M. Norton · leaf 181
the base of the cylinder. Its backwill be A, and its long diameter, EF, can be set off on a line sketchedhalf way between this front and back, marking E and F half waybetween AD and the ends of the construction rectangle. Through thesefour points the bottom ellipse is drawn. For the top ellipse a… … Fig. 253 CHAPTER XXVI —PAGE 91 THE SQUARE FRAME LEANING ON A REC-TANGULAR BLOCK The Rectangular Block. — This solid is drawn in the same manneras the book similarly placed. Recall that it is equal to two cubes, asshown in Fig. 255, where a diagonal (AB) of the horizontal top face 1 This use of the…
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-55-84.webp)
