A new manual of perspective: containing remarks on the theory of the art, and its practical application in the procudtion of drawings ... Illustrated by numerous engravings (1849)
Whittock, Nathaniel · London, A. Hall & Co. · leaf 76
tperpendicular is drawn from the angle of theeighth square on the base to d. Draw a linefrom d to the point of sight, which will givethe height of the perpendiculars raised fromevery fourth line on the outer range of squareson both sides of the pavement; they are takenup to the lines drawn from b… … In order to obtain the centre for the archesthat spring from the perpendicular lines, it willbe necessary to find the centre between thetwo first perpendiculars; it is marked c on the 74 MANUAL OF PERSPECTIVE. diagram. A line drawn from this point to thepoint of sight will give the centres for all…
Perspective
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