Mini Raster-to-Vector Conversion

摘要

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)