FGI terrain model format

Format for reading height system difference model available from The Finnish Geodetic Institute. The latter *Network.txt triangle file should be opened and matching *Vertices.txt point file must be in the same directory.

Point format depends on used network and is selected with special setting FgiFormat.

Example

n60n2000triangulationNetwork.txt:

84       6675826 3328708  63.941    64.19060
127      6727072 3382462  114.663   114.92051
154      6767069 3364647  84.010    84.28757
375      6758163 3444630  120.785   121.01892

n43n60triangulationNetwork.txt:

    1 6775731.5858 3596918.8282    33   411204
    2 6715000.0000 3535000.0000    39   304210
    3 6725000.0000 3535000.0000    41   304211
    4 6715000.0000 3505000.0000    42   304201

*Network.txt:

78237    74007    58265L
74007    58014    58265L
58265L   38212    58014
78237    58265L   78231

Special settings

There are some special settings related to this converter.

FgiFormat

0 two heights. Reads two heights from the vertices file and calculates the height difference. Used with N60-N2000 network.

1 single height difference. Reads single height difference from the vertices file. Used with N43-N60 network.