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The elements of perspective : arranged for the use of schools and intended to be read in connexion with the first three books of Euclid (1859)

Ruskin, John, 1819-1900 · London : Smith, Elder · leaf 94

An illustration from The elements of perspective : arranged for the use of schools and intended to be read in connexion with the first three books of Euclid, 1859, leaf 94
aw vertical x y, cutting d b in v. Join at, cy; and these lines are the sides of the gable. If the length of the roof A A/ is also given, draw in perspective the complete parallel opiped a' d' b c, and from y draw y y' to the vanishing-point of A a', cutting 1/ b' in y'. Join a' y, and you have the…

Perspective

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