Chippendale, Thomas (1718-1779) / The gentleman and cabinet-maker's director: being a large collection of the most elegant and useful designs of household furniture in the Gothic, Chinese and modern taste.
Rules for drawing, pp. 4-7
[ 5 ] RULES TO DRAW CHAIRS in PERSPECTIVE. PLATE IX. No.9. FIGURE the First is the profile of a Chair with its proper dimensions: To draw a Chair (fig. III.) in Perspective, you must first draw the ground line E, then draw the horizontal line F, then mark your point of sight 0, from thence set off eight feet six inches to V, the point of distance; the height of the horizontal line is always five feet six inches from the ground line : Draw ano- ther line D, parallel to the ground line, for the seat of the Chair; set off your dimensions at pleasure, so as to make your design look as well as possible. Suppose EE, one foot ten inches, the front of the Chair, then from the point of sight 0 draw OE, 0E; then from the profile, (fig. I.) take one foot six inches and half CC, and set it off to the right hand cc, and from thence draw two lines Vcc, till they cut the ray OE; then set off the bigness of the back of your Chair nn, one foot five inches and an half; on the front of the Chair draw nn, &c. to the point of sight 0; those lines cc, drawn from the point of distance V, cut the visual OE; draw the lines parallel to the visual, 0nn, and where they intersect in Onn, there the back foot will fall at the seat of the Chair. The distance in the profile B, one foot nine inches and a half, set off from E to bb, determines where the top of the back foot falls; the same method is taken for the bottom of the back foot. You see one foot nine inches and three quarters taken from the profile set upon the line drr; the distance m from the foot in the profile is set off upon the ground line Em, which gives the cross rail: The visual lines Onn, mark'd upon the ground line E, give the breadth of the back foot at the bottom; the line G, continued in g, from the corner of the Chair E up to P, is one foot ten inches; from P draw a line to the point of sight, then raise two per- pendiculars from bb up to P, and the line drawn from P to the point of distance V where it intersects in q, gives the determined height of the back of the Chair, ttt gives the breadth of the banister at the bottom of the Chair, aa in the horizontal line are two points which answer to draw the top and bottom rails of the Chair, as the Chairs are less behind than before. Figure IV. is a front view of a Chair, and the measures set off as in the other Chair, and drawn to the same point of sight and distance. B Figure
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