geoserver - How to create proj4 definition of local coordinatesystem

Monday, 23 December 2019

i have to generate a proj4 definition string from affine transformation parameters (A-F).

For example:

I have a local coordinatesystem based on EPSG:31466

The affine parameter are:

  A = 0.933176825,
  B = -0.358394718,
  C = 2557551.066,
  D = 0.358262137,
  E = 0.933522886,
  F = 5635190.282

Coordinates of 31466:

2575489,2435

5729759,4565

coordinates of local coordinatesystem:

50600.9577413499

81876.1639280757

but how to translate the affine parameter to a proj4 string? i need it for gdal and geoserver

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