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)
le for determining similar heights on any part ofthe perspective plan. To avoid confusion they arehere drawn to the point j5. 4th. Through M draw M. C parallel to JV. 0, andfrom C draw a line to the point of sight which deter-mines the height of the side of the column, and also ofthe back column… … D X F Fifj.Z. Q ^ 1 ^ 1 -■■^ ,w r / ■/■ ^^H5 3 ^ -i -^ 1 O ■Sralc of Fivt VlP^ Wriri rihr^Ui- bcSoii PLATE XXXIX, 117 5th. To determine the height of the pillar at TF, 1st.draw a horizontal line from its foot intersecting theproportional scale JV. B in Y; 2nd. from Y draw avertical line…
