The book Applied Perspective, for Architects And Painters was written by author William Pitt Preble . Longfellow Here you can read free online of Applied Perspective, for Architects And Painters book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Applied Perspective, for Architects And Painters a good or bad book?
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V is common to both series of points, and its two measuring points M and M° are equally distant from it, as all its measuring points must be. It will be found also that the other two measuring points are equally distant from F", so that F"M"= V"M'. The angle F'M'V", it will be seen, is equal to the pitch of the oblique plane, as CDC was that of the plane in Fig. 90. The practical construction is then exceed- ingly simple. Given F and F', the vanish- ing points of the horizontals of the given pl...ane and of the horizontal projection of its slope lines, and the pitch of the plane — say the vanishing points of the courses in the walls of a building and the pitch of its roof — and we may lay out a chart thus : (Fig. 95). The slope angle laid off at M' gives F" on the vertical from F' (page 34, Fig. 46). The arc M'M" from the centre F" gives M", the arc MM° from the centre Fgives M°, and this is all. 7T' .7^ Note. That this construction is true may be proved by comparing the perspective diagram, Fig.
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