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Results tagged with terminology
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user 87
Indicates questions asking about the use and meaning of specific technical words in GIS.
37
votes
Differences between DEM, DSM and DTM?
In my experience, a more complete answer to this question lies in defining the difference between a DEM, DTM and a DSM. A DTM is NOT a generic name covering both DEMs and DSMs. So...
A DEM is a 'bar …
- 2,758
13
votes
Difference between projection and datum
This won't compete with wwnicks answer and not rigorous, but the visualization I present to people, when asked, is the relationship between a string connected to a ball. Changing the projection is oft …
- 2,758