Read DTED elevation data

Read binary DTED files ( .dt0, dt1, dt2) to matrix

Description

If you don't have mapping toolbox and still want to read binary DTED files, then try:

[map latgrid longrid] = mapreader2;

• Acknowledgements: This submission has inspired the following:; DTED - EGM96 load/display v1.0
• MATLAB release: MATLAB 7.5 (R2007b)

[Evan]

Very useful!

Does not seem to correctly handle when latitude or longitude is negative. i.e. West and South hemispheres.
Using the variable c assigned on line 138, c(12) designates longitude hemisphere as 'E' or 'W' and c(20) latitude hemisphere as 'N' or 'S'.

[Jan Michalek]

Works fine! I had to replace unrealistic values by following below line 154:

map(map==65535) = NaN;