TNTmips

Digitizing Soil Maps

How do you computerize paper maps? This booklet walks you through a sample project that digitizes published soil maps by using several TNT processes to scan, threshold, vectorize, combine, and finish a digital map containing vector polygons with attached geoattributes. The techniques can be generalized for other types of paper maps.

scanning techniques

auto-trace process

apply binary threshold

remove dangles / overshoots

select thinning method

mosaic multiple sheets

add georeference

preview filter results

close gaps

remove islands / bubbles

clean artifacts

import / attach geoattributes

	PDF Release Version. (file date: Wednesday, 22-Mar-2006 23:11:56 CST)
	Pagemaker 6.5 format
	Sample Data needed for the tutorial exercises

Translations Available:

SRP NLD ENG FIN FRA DEU ITA JPN KOR SPA RUS TUR

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Index of all booklets ...

16 May 2008
page update: 24 Aug 07

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