Young, George, jr, Baxter, Hubert Eugene, joint author · New York, Macmillan · leaf 41
FiQ. 18 22 DESCRIPTIVE GEOMETRY [in, § 17 Figure 19 shows a line which is inclined to both planes ofprojection. It will be evident immediately that the projectionsare each shorter than the line itself, and that the angles a° and/3* between the projections and HA are greater than the angles … a5=a line in spaceo*6*=horizontal projectiono6=vertical projectiono6=profile projection o^6*a*, ahhoa, and ahhfafare the horizontal, verti-Fio. 19 oal, and profile, projecting planes a. and ft which the line makes with the planes of projection.18. Normal and Special Cases. The previous article…
Geometry, Descriptive
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