Appleton's cyclopædia of drawing, designed as a textbook for the mechanic, architect, engineer, and surveyor (1866)
Worthen, William Ezra, 1819-1897, [from old catalog] ed, Appleton, firm, publishers, New York. (1866. D. Appleton & co.) [from old catalog] · New York, D. Appleton and company · leaf 612
e ona plane assumed at the height of the pillar, must be adopted. To draw a Pyramid in Parallel Persjpective.—Let A (fig. 9) be theplan of a pyramid, the diagonal lines represent the angles, and their in-tersection the vertex; project the plan as in previous examples of squares.Draw diagonal lines… … Fig. 9. the centre of the line M a^ upon which set up the height of the pyramidef; from/* draw a line to Y, and its intersection of the axis of the j^yramidat d will give the persj^ective height; complete the figure by drawinglines from d^ the apex, to M, <2, J, the three visible angles. The…
