Perspective and geometrical drawing adapted to the use of candidates for second and third-class teachers' certificates (1887)
McGuirl, Thomas H. [from old catalog] · Toronto, W. Briggs; · leaf 18
uld appear to vanish at the same point directly in front ofus, hence the rule : Lines parallel to the line of direction will vanish at thecentre of vision. (Fig. 3.) Thus, let C be centre of vision, and AA, BB the ends ofparallel lines : they will all meet at C, and all the lines drawnfrom C to AB… … Parallel lines drawn between vanishing lines are of equallength, and, conversely, the lines joining the extremities ofequal parallel lines will vanish to a point.
Geometrical drawing · Perspective
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