A text book of geometrical drawing : abridged from the octavo edition : for the use of schools in which the definitions and rules of geometry are familiarly explained, the practical problems are arranged from the most simple to the more complex, and in their description technicalities are avoided as much as possible : with an introduction to isometrical drawing : and an essay on linear perspective and shadows ... (1849)
e length of the front of the house, 5th. On jBl. H set off twelve feet the height of thewalls, at 0, and from 0 draw a line to the vanishing-point Z, intersecting d. e m m and 6. o in n, 6th. From m and e draw vanishing lines to T, anda perpendicular from c intersecting them in F and s ;this will… … l^P: Mirpni r.iTFum k:dotbs. PLATE XLV. 131 and through their intersection draw an indefinite per-pendicular u, v, which will give the position oj^the gable. 8th. To FIND THE HEIGHT OF THE GABLE, SCt off its proposed height, say 7 0^, from 0 to JV on the lineof heights, from JY draw a ray to Z,…
