0

There is geoTransformation named:

WGS_1984_Major_Auxiliary_Sphere_To_WGS_1984

I know it exists because I can access it with Projection Tool in ArcToolbox. But for the life of me I cannot find it any of the geoTransformation constant lists (esriSRGeoTransformationType, esriSRGeoTransformation2Type, esriSRGeoTransformation3Type). How do I access the enum for this geotransformation with ArcObjects?

Improve this question
2
  • Still not sure what the enum is, but its value is 108100. This code: ISpatialReferenceFactory2 spatialReferenceFactory2 = new SpatialReferenceEnvironmentClass(); IGeoTransformation geoTransformation = spatialReferenceFactory2.CreateGeoTransformation(108100) as IGeoTransformation; Console.Write(geoTransformation.Name); Will print: "WGS_1984_Major_Auxiliary_Sphere_To_WGS_1984" ESRI appears to have omitted this enum from the ArcObjects Library Reference (Geometry). Very annoying.
    – rgwozdz
    Commented Sep 17, 2011 at 5:09
  • 1
    The code here could be adapted to find a geotransformation by name.
    – Kirk Kuykendall
    Commented Sep 19, 2011 at 1:35

1 Answer 1

Reset to default
0

As rgwozdz states, it's 108100. The enums have not been kept up-to-date. Up-to-date geographic/datum transformation lists are here. I'm actively working on publishing up-to-date documentation for all the various projection engine objects for ArcGIS 10.1.

Note: I work for Esri.

Improve this answer

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.