2
votes
1answer
616 views

DTED/GeoTiff layer: Get elevation under mouse pointer

I have a simple desktop app with a map control. The map data that will be available to show will be either DTED files (Military Analyst's catalog / MADTEDLayer), or GeoTiffs (created by gdal). I want ...
7
votes
5answers
5k views

How to calculate Topographic Ruggedness Index in Arcgis?

Does anyone know how to calculate Topographic Ruggedness Index in Arcgis without access to command line arcinfo workstation? "The topographic ruggedness index (TRI) is a measurement developed by ...
1
vote
3answers
2k views

Where can I download 1 arc-second elevation data for Canada other than Geobase?

Can someone suggest a source for Canadian elevation data better or equivalent to 1 arc-second? I have a good data source for Ontario but for other provinces folks often recommend Geobase which claims ...