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 127
principle is understood.After drawing the border line 8Xll, locate the center lineab \\ to the right of the left border line, and with the cen-ter o 2 above the lower border line, and with a radius of\\ draw the circle chd representing the plan of the hem-isphere. On the line ab at e, 4 above the… … 43 §2 PROJECTION DRAWING 49 therefore, it must be considered as a figure with a numberof flat sides and developed accordingly, as follows: Divide one-half the semicircular elevation aj into six equalparts, as shown at i, 2, 3, 4., 5, arid 6 in the elevation (a),and draw the line £■/i 3 to the right…
