Accession Number : AD0610477

Title :   TECHNIQUES OF REVISING TOPOGRAPHIC MAPS,

Corporate Author : ARMY ENGINEER RESEARCH AND DEVELOPMENT LABS FORT BELVOIR VA

Personal Author(s) : Abol'yan,A. M. ; Tolmacheva,Z. I.

Report Date : 1964

Pagination or Media Count : 5

Abstract : Methods of revising topographic maps by using transparent, deformation-resistant plastics (Viniproz, Astralon, Permatrace, Hostaphan, etc.) as the original for correcting maps are discussed. An image of the map is plotted on the plastic and after this has been combined with the aerial photograph, adapted to the scale of the map under revision, the map elements are corrected. The technique of revising originals by this method consists in the following. A copy is made from the original of the map under revision. When such plastics as Viniproz, Astralon, etc., which are more than 0.15 mm thick, are used for this purpose, an outline image of the map is generally obtained on the mat side of the transparent base in a direct (readable) image by the relief method of by printing on an offset machine. The image may be any color (brown, red, black), but it must have sufficient optical density. When copies are made by the relief method, it is preferable first to coat the mat side of the plastic with the aid of a pad of cotton wool soaked in a lacquer.

Descriptors :   (*MAPS, PHOTOGRAMMETRY), (*PHOTOGRAMMETRY, MAP PROJECTION), AERIAL PHOTOGRAPHS, TERRAIN, MAPPING, REPRODUCTION, CORRECTIONS, PHOTOGRAPHIC RECORDING SYSTEMS, PHOTOGRAPHIC MATERIALS, PLASTICS

Distribution Statement : APPROVED FOR PUBLIC RELEASE