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 388
ELEMENTARY PERSPECTIVE DRAWING 93 perspective. In this case, the measuring line a b, Fig. 80, islaid off for dimensions on the right side of the room, andac for dimensions on the left side. It will be observed thatthe entire plan is in front of or below the measuring line inthis case, and on the… … Fig. 79 on the contrary, the measurements laid off on ac are pro-jected into the perspective plan from Af^ because a c vanishesat V^. The line ax going through the corner of the roomserves as a measuring line on which all the details are laidoff to scale, and are projected therefrom to their…
