Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 94
o, and the lines appear to meet in a single point. Thispoint is called the vanishing point of the lines. 12. If any object, as, for illustration, a cube, is studied, itwill be seen that the lines which form its edges may be separated into groups accordingto their different direc-tions ; all lines… … -2 tern. For example, in Fig. -1, A, A,, A, group or system ; B, B^, B^, and B3, to another; and C, Cj, C^, and Cg, to a third. Each system has its own vanishing point, towards which all the elements of that system appear to converge. This phenomenon is well illustrated in the parallel lines of a…
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