Hatton, Richard G · London, Chapman & Hall ld. · leaf 139
epresenting 60° on the right, ifwe require a V.L. for vertical planes at 60° to the right, wehave simply to draw a line vertically down through it. The student should hardly need telling that therelation between a vertical plane and the picture-planeis to be seen in plan. 37. Finding the V.L. of… … Pra. 68.—^V.L. found of a directly ascending plane which makes 30°with the ground-plane. zontal position, is shown at the side of the diagram.Note that the ascending or descending planes are de-scribed as at such and such angles to the horizontal Ascending or Descending Planes 105 or ground planes.…
Perspective · Drawing
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
