Group Elevation Calculations
The group "Elevation Calculations" contains functions for the determination of ground elevations over the Mean Sea Level from digital elevation models.
That group contains functions for the use of Digital Elevation Models (DEM) to determine ground level elevations of arbitrary points on the earth's surface. In addition free available elevation data of Digital Elevation Models are required, that can be downloaded from the Internet or ordered from KilletSoft for a small copying fee. GeoDLL supports the elevation data of the 3 seconds elevator model CGIAR (90 m raster) and of the 30 seconds elevator model GLOBE (1 km raster). Both systems were developed by the NASA.
Characteristics of the function group
"Elevation calculations" function group
Function getelevation03() - Elevation from the 3 sec. elevation model CGIAR
Function getelevation30() - Elevation from the 30 sec. elevation model GLOBE
Function getelevation33() - Elevation from 3/30 sec. elevation model CGIAR/GLOBE
Function setelev03datapath() - Sets the data path for the elevation model CGIAR
Function setelev30datapath() - Sets the data path for the elevation model GLOBE
Function convelev03ascii2bin() - Convert a CGIAR ASCII file to a binary file