ReadNTF

DESCRIPTION

This module reads data in from a digital terrain data file in National Transfer Format (NTF) and outputs it as a uniform 2D lattice.

INPUTS

WIDGETS

Port: Input File
Type: File Browser
Input file. The module checks to see if it can open it, and makes some attempt to check the format to see if really is an NTF file.

OUTPUTS

Port: Lattice
Type: Lattice
Constraints: 2-D
Constraints: 1-vector
Constraints: short
Constraints: uniform
Output lattice.

KNOWN PROBLEMS

This module assumes that all NTF files contain dtms that are dimensioned 401 by 401 with a spacing of 50m between each row and each column. It doesn't check this, but it should, since this information is in the header of the NTF file.

SEE ALSO


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© The Numerical Algorithms Group Ltd, Oxford UK. 2000