esriSRParameterType Constants

The available predefined parameters.

Constant Value Description
esriSRParameter_​FalseEasting 100001 False Easting, X0.
esriSRParameter_​FalseNorthing 100002 False Northing, Y0.
esriSRParameter_​ScaleFactor 100003 Scale Factor, K0.
esriSRParameter_​Azimuth 100004 Azimuth, Alpha.
esriSRParameter_​CentralMeridian 100010 Central Meridian, Lambda 0.
esriSRParameter_​LongitudeOfOrigin 100011 Longitude of Origin, Lambda 0.
esriSRParameter_​LongitudeOfCenter 100012 Longitude of Center, Lambda c.
esriSRParameter_​LongitudeOf1st 100013 Longitude of first point, Lambda 1.
esriSRParameter_​LongitudeOf2nd 100014 Longitude of second point, Lambda 2.
esriSRParameter_​CentralParallel 100020 Central Parallel, Phi 0.
esriSRParameter_​LatitudeOfOrigin 100021 Latitude of Origin, Phi 0.
esriSRParameter_​LatitudeOfCenter 100022 Latitude of Center, Phi c.
esriSRParameter_​StandardParallel1 100025 Standard Parallel 1, Phi 1.
esriSRParameter_​StandardParallel2 100026 Standard Parallel 2, Phi 2.
esriSRParameter_​LatitudeOf1st 100023 Latitude of first point, Phi 1.
esriSRParameter_​LatitudeOf2nd 100024 Latitude of second point, Phi 2.
esriSRParameter_​XAxisTranslation 100040 Delta X.
esriSRParameter_​YAxisTranslation 100041 Delta Y.
esriSRParameter_​ZAxisTranslation 100042 Delta Z.
esriSRParameter_​XAxisRotation 100043 Rotation around X.
esriSRParameter_​YAxisRotation 100044 Rotation around Y.
esriSRParameter_​ZAxisRotation 100045 Rotation around Z.
esriSRParameter_​ScaleDifference 100046 Scale difference.
esriSRParameter_​NameDataset 100047 Datum transformation grid name.
esriSRParameter_​ZShift 100006 Vertical coordinate system z-shift parameter.
esriSRParameter_​ZPositiveDirection 100007 Vertical coordinate system direction of positive coordinates (1 - up, -1 - down)


This enumeration contains entries for some of the predefined projection and transformation parameters. Please see esriSRParameter2Type, esriSRParameter3Type, and esriSRParameter4Type for other predefined projection and transformation parameters. A value corresponds to the factory code used in the Projection Engine library.

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