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I have to transform the local reference system with the following SRtext parameters:

PROJCS["Sagalassos Local Grid",
GEOGCS["GCS_WGS_1984",
DATUM["D_WGS_1984",
SPHEROID["WGS_1984",6378137.0,298.257223563]],
PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],
PROJECTION["Local"],PARAMETER["False_Easting",2500.0],
PARAMETER["False_Northing",2500.0],
PARAMETER["Scale_Factor",1.0],
PARAMETER["Azimuth",0.0],
PARAMETER["Longitude_Of_Center",30.5200246520608],
PARAMETER["Latitude_Of_Center",37.6767593942953],
UNIT["Meter",1.0]]');

If I try gdal to get the information, it gives me the error: No translation for LOcal to proj.4 format is known.

Matt
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Anuja Dangol
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  • The Esri "Local" projection is actually orthographic on an ellipsoid versus sphere. Because it looks like the data's very large scale, try orthographic. – mkennedy Oct 12 '16 at 19:18
  • Yes I found in the documentation that it was "orthogonal grid" . How can I specify that in proj.4 txt? – Anuja Dangol Oct 13 '16 at 07:12
  • Thanks . Yes I found in the documentation that it was "orthogonal grid" .

    I specified in proj.4 txt as:+proj=ortho +lat_0= 37.6767593942953 +lon_0= 30.5200246520608 +x_0 2500.0 +y_0 2500.0 +ellps=WGS84 +units=m +no_defs

    But how to make sure that i am doing it right?

     – Anuja Dangol Oct 13 '16 at 07:25
  • This looks rather good, except that x_0 and y_0 lack an equal sign. Look at http://geotiff.maptools.org/proj_list/orthographic.html for the parameter definitions. – AndreJ Apr 17 '18 at 10:43

1 Answers1

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Local is not an allowed value for a projection method.

It must be Mercator, Transverse Mercator, Stereographic or some other kind of known projection.

Using customized Coordinate System in ArcGIS Desktop? might be what you are looking for.

Community
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AndreJ
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  • Thanks . Yes I found in the documentation that it was "orthogonal grid" . I specified in proj.4 txt as:+proj=ortho +lat_0= 37.6767593942953 +lon_0= 30.5200246520608 +x_0 2500.0 +y_0 2500.0 +ellps=WGS84 +units=m +no_defs But how to make sure that i am doing it right? – Anuja Dangol Oct 13 '16 at 07:25