Accession Number : ADA113004

Title :   Mini Raster-to-Vector Conversion.

Descriptive Note : Final rept.,

Corporate Author : ENVIRONMENTAL RESEARCH AND TECHNOLOGY INC LEXINGTON MASS

Personal Author(s) : Crane,Robert K

PDF Url : ADA113004

Report Date : Sep 1981

Pagination or Media Count : 53

Abstract : A raster-to-vector conversion program was developed for the Defense Mapping Agency (DMA). The program operates on run length coded data from a SCI-TEX scanner. It operates in a 16-bit Digital Equipment Corporation PDP 11/60 minicomputer with limited core storage, less than 64 k-bytes. The program was tested and timed using data supplied by DMA. It vectorized 4879.8 linear inches of contour data in 1.19 hours at 0.005 inch resolution and 1.14 hours at 0.010 inch resolution. The program also developed a number of attributes and contour intersection directories useful for automated editing of the vector data. (Author)

Descriptors :   *Contours, *Vector analysis, *Rasters, *Mapping, *Topographic maps, *Digital computers, Operators(Personnel), Length, Computer programs, Department of Defense, Editing, Core storage, Algorithms, Resolution, Limitations, Coding, Automation

Subject Categories : Cartography and Aerial Photography
      Theoretical Mathematics
      Computer Programming and Software
      Computer Hardware

Distribution Statement : APPROVED FOR PUBLIC RELEASE