Applied perspective, for architects and painters (1901)
Longfellow, William Pitt Preble, 1836-1913 · Boston and New York, Houghton, Mifflin and company · leaf 117
en theoblique plane and the horizon plane. It maybe called the slope angle or pitch of the plane. If we take the more general case of anoblique plane, that is, one that is neither parallel to HHnoi normal, the construction isnot quite so simple, yet not complicated. The plane of the triangle SCC… … round CC, CS will fall on Co, a lineat right angles to CC and so parallelto HH. Take CS to represent theAxis revolved ; then CS equal to CSwill be the sub-axis, C being the sub-centre, and this, measured off rightand left from C on HH, will givethe distance points D and D on thathorizon.1 If Vvs, a…
Perspective
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