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 81
exact dimension from whicha similar article could be produced. In Fig. 2, however, isshown a projection drawing of the same decanter, (a) beingthe side view, usually called the elevation, while {b) isthe top view, usually called the plan. The straight linerepresenting the upper edge of the neck a b… … Fig. 3 by a dotted line that indicates the thickness of the glass),appears in the plan as the small circle e. This, then, is thesimple principle of projection drawing, and whether the pro-jected object be a line, a surface, or a solid, its entire formcan be expressed in two or three drawings,…
