Topographical drawing and sketching : including applications of photography (1888)
Reed, Henry A. (Henry Albert), 1844-1930 author · New York : John Wiley & Sons, 15 Astor Place · leaf 267
SECTION IV. RADIAL PERSPECTIVES— INSTRUMENTS, FIELD-WORK AND PLOTTING. 45. Photographic Plane-tables. — If at any station a photographic view of the sur- rounding tract be represented upon a horizontal surface, every point of the representa- tion occupying its true position ; then will the… … FlG- 44- azimuth, — a tangent-screw, T, serv- ing for close adjustments. A plate-holder, D, shown inserted, contains the sensitive plate. The cover, or upper plate of the chamber, which carries the objective system, is movable about its centre, its edge resting in double grooves in the upper edge…
Topographical drawing · Photographic surveying
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
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