Burn, Robert Scott · London : Ingram, Cooke, and Co. · leaf 84
thepicture is saved, as in fig. 43. Having described two modes by which the proper positions of pointsmay be found in perspective, the learner will easily perceive how irregularfigures, whose plan is given, may be shewn in perspective by finding theplaces of their points or angles in the picture.… … /!\ «!\\ \d,a1 1 j lb. I ! >! \ i \\ 1 1 \ 1 1 H i\! 1 » e* »s i J ^ ffW///////A fig. 43. dicular to the horizontal line, intersecting it at S, which will be the pointof sight. On the horizontal line set off D S equal to K V, which makes thespace between the points of sight and distance equal to…
Drawing · Wood-engraving
Internet Archive · Getty Research Institute · Public Domain Mark 1.0. Free to use for anything.
![An illustration from Vnderweysung der Messung : mit dem Zirkel vn[d] Richtscheyt in Linien, Ebnen vnnd gantzen Corporen (1525)](https://img.insideoutlibrary.com/img/200/ia-vnderweysungderm00drer-173-421.webp)
