Elementary projection drawing. Theory and practice. For preparatory and higher scientific schools, industrial and normal classes; and the self-instruction of teachers, inventors, draftsmen, and artisans. In six divisions .. (1880)
Warren, S. Edward (Samuel Edward), 1831-1909 · New York, J. Wiley & sons · leaf 122
und line from c meetsabc, the horizontal projection of the line. This explanation may be condensed into the following rule. 1st. Note where the vertical projection of the given line, produced if necessary, meets the ground line. 2d. Project this point into the horizontal projection of the… … Fig. 1. Example.—If bd (both figures) had been less than bd, the linewould have pierced the horizontal plane behind the ground line,that is in the horizontal plane produced backwards. Let this con-struction be made, both pictorally, and in projection. Problem Id.—To find where a line, drawn through…
Geometrical drawing · Mechanical drawing
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