Perspective, or, The art of drawing what one sees : explained and adapted to the use of those sketching from nature (1872)
Collins, W. H. (William Henry) · London : Longmans, Green · leaf 90
visual ray from the eye to the corner c of the frame joins the extremities of these two parallel lines, and cuts the line yb in c. Yo' and CA, still retaining their parallelism, are laid flat upon the paper, and the point of inter¬ section of VB is found at c — the point required. The case is… … crowding of equidistant lines as they are more and more distant from the eye. Let two parallel lines A B and c D be drawn to their vanishing point v, let the diagonals to the figure be drawn, and let A c and B D be drawn to their vanishing point, thus completing the parallelogram. The inter-
Perspective · Drawing
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
