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Indicates questions asking about the use and meaning of specific technical words in GIS.

9 votes
1 answer
467 views

Is "puntal" an accepted and defined geometric term?

There are definitions for the geometric qualities of polygons and lines: polygonal: Having many angles; hence characteristic of a polygon. Ref: http://en.wiktionary.org/wiki/polygonal …
blah238's user avatar
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116 votes
7 answers
180k views

Differences between DEM, DSM and DTM?

I am listing some of the acronyms used in our work and had to stop to think about whether to list these together or separately: DEM: Digital Elevation Model DSM: Digital Surface Model DTM: Digital T …
blah238's user avatar
  • 35.9k