Accession Number : AD0714378

Title :   System and Design Study for an Advanced Drum Plotter.

Descriptive Note : Final technical rept.,

Corporate Author : IBM FEDERAL SYSTEMS DIV GAITHERSBURG MD

Personal Author(s) : Friar,M. E. ; Hogan,R. D. ; Min,P. J. ; Sharp,J. V. ; Thompson,D. R.

Report Date : APR 1970

Pagination or Media Count : 189

Abstract : The report documents the results of a feasibility study to determine digital data processing techniques and supporting facsimile plotter hardware necessary to make large area color separation negatives suitable for map production. The report describes plotter design, graphic data procssing techniques, the executive system program, and integration of software and hardware components. It has a section containing results of a systems study of the task of Computer-aided, cartographic quality map generation. The performance of the experimental system is discussed in detail using results obtained from the processing of five 14-inch x 22-inch input manuscripts. The processing included the scanning of the input documents, digital processing of the image data, and printing color separation negatives in facsimile image form with a facsimile drum plotter (2 and 4 mil resolution). The report also describes the use of digital techniques for creation of shaded relief from topographic profile data and the subsequent plotting of image, using a digital half-tone screen and the experimental plotting equipment. (Author)

Descriptors :   (*INPUT OUTPUT DEVICES, PLOTTERS), (*DATA PROCESSING, GRAPHICS), (*MAPPING, COLOR PHOTOGRAPHY), IMAGE CONVERTERS, PHOTOGRAPHIC ANALYSIS, DISPLAY SYSTEMS, COMPUTER PROGRAMMING, PHOTOGRAMMETRY, DESIGN, TERRAIN, PROJECTIVE GEOMETRY, FEASIBILITY STUDIES

Subject Categories : Cartography and Aerial Photography
      Computer Programming and Software

Distribution Statement : APPROVED FOR PUBLIC RELEASE