Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 131
y^, draw horizontal lineslying in the plane chf, forAvhieh o^p^ is a line of measures. Theselines will vanish at v^\ and intersect the vertical edge F/^ of theblock. From these intersections draw horizontal lines lying inthe plane alef, vanishing at v^^, and representing the upper andlower edges of… … the square. This-construction has been indicated, and the studentshould follow it throuo-h. 59. It sometimes happens tliat no line in the object lies inthe picture plane. In such a case there is no principal line ofmeasures, and some vertical plane in the object must be extendeduntil it intersects…
Architecture · Building · Carpentry
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