Any CT Essence

Any sub-type of cartographic transformation.

typestring(Item Type.)required

The type identifier, either 'ST' or 'CT'.

Enum:"ST""CT"

Example:"ST"

namestring(CT Name)required

The name of the simple cartographic transformation.

Example:"ED_1950_UTM_Zone_31N"

verstring(Version)

The engine version issuing the definition.

Example:"PE_10_3_1"

wktstring(Well-known Text)

The well-known text (Esri style) defining this transformation.

Example:"GEOGTRAN[\"ED_1950_To_WGS_1984_23\",GEOGCS[\"GCS_European_1950\",DATUM[\"D_European_1950\",SPHEROID[\"International_1924\",6378388.0,297.0]],PRIMEM[\

policystring(Policy)

The transformation policy - concatenated or fallback.

Enum:"Fallback""Concatenated"

Example:"Fallback"

ctsArray of objects(Transformation List )

The ordered list of cartographic transformations.

authCodeobject(Authority Code)

The AuthorityCode for this item.

{
  "type": "ST",
  "name": "ED_1950_UTM_Zone_31N",
  "ver": "PE_10_3_1",
  "wkt": "GEOGTRAN[\"ED_1950_To_WGS_1984_23\",GEOGCS[\"GCS_European_1950\",DATUM[\"D_European_1950\",SPHEROID[\"International_1924\",6378388.0,297.0]],PRIMEM[\"Greenwich\",0.0],UNIT[\"Degree\",0.0174532925199433]],GEOGCS[\"GCS_WGS_1984\",DATUM[\"D_WGS_1984\",SPHEROID[\"WGS_1984\",6378137.0,298.257223563]],PRIMEM[\"Greenwich\",0.0],UNIT[\"Degree\",0.0174532925199433]],METHOD[\"Position_Vector\"],PARAMETER[\"X_Axis_Translation\",-116.641],PARAMETER[\"Y_Axis_Translation\",-56.931],PARAMETER[\"Z_Axis_Translation\",-110.559],PARAMETER[\"X_Axis_Rotation\",0.893],PARAMETER[\"Y_Axis_Rotation\",0.921],PARAMETER[\"Z_Axis_Rotation\",-0.917],PARAMETER[\"Scale_Difference\",-3.52],AUTHORITY[\"EPSG\",1612]]",
  "policy": "Fallback",
  "cts": [
    { … }
  ],
  "authCode": {
    "auth": "EPSG",
    "code": "4326"
  }
}