Geometrical drawing, projection drawing, freehand and ornamental drawing, wash work and brush drawing, elementary perspective drawing, architectural drawing (1921)
International Correspondence Schools · Scranton, PA : International Textbook Co. · leaf 134
d bd the other diagonal, if wanted, can be drawnparallel to the horizon. If from the point d another line isdrawn to 1/ , a diagonal d c, L^ig. 5, of another square adjacentto the first is drawn; a line from V through e to f completesthe second square. Thus it is easily seen that any numberof… … 56 PROJECTION DRAWING §2 be represented by first drawing the perspective of their basesand then erecting over these bases the outhnes of the per-spective elevations. In Fig. 7, at abed, is shown the perspective of a squareand of its diagonals. A line from V through the intersec-tion of these…
