CompoundCTRequest

Request to get one CompoundCT given its 'persistableReference' (serialized essence) or 'essence' structure. Only one, persistableReference or essence must be provided. If both are provided, essence takes precedence.

persistableReferencestring

The persistable reference string, either the essence of the CompoundCT serialized into a JSON string or an encoded string (version 1).

Example:"{\"policy\":\"Fallback\",\"cts\":[{\"wkt\":\"GEOGTRAN[\\\"NAD_1927_To_WGS_1984_79_CONUS\\\",GEOGCS[\\\"GCS_North_American_1927\\\",DATUM[\\\"D_North_

essenceobject(Compound CT Essence)

Compound cartographic transformation.

Example:

{
  "authCode": {
    "auth": "OSDU",
    "code": "158511693"
  },
  "name": "Fallback NAD27 to WGS 84 (79)/NAD27 to WGS 84 (33)",
  "policy": "Fallback",
  "type": "CT",
  "cts": [
    { … },
    { … }
  ],
  "ver": "PE_10_3_1"
}

{
  "persistableReference": "{\"policy\":\"Fallback\",\"cts\":[{\"wkt\":\"GEOGTRAN[\\\"NAD_1927_To_WGS_1984_79_CONUS\\\",GEOGCS[\\\"GCS_North_American_1927\\\",DATUM[\\\"D_North_American_1927\\\",SPHEROID[\\\"Clarke_1866\\\",6378206.4,294.9786982]],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[\\\"NADCON\\\"],PARAMETER[\\\"Dataset_conus\\\",0.0],AUTHORITY[\\\"EPSG\\\",15851]]\",\"ver\":\"PE_10_3_1\",\"name\":\"NAD_1927_To_WGS_1984_79_CONUS\",\"authCode\":{\"auth\":\"EPSG\",\"code\":\"15851\"},\"type\":\"ST\"},{\"wkt\":\"GEOGTRAN[\\\"NAD_1927_To_WGS_1984_33\\\",GEOGCS[\\\"GCS_North_American_1927\\\",DATUM[\\\"D_North_American_1927\\\",SPHEROID[\\\"Clarke_1866\\\",6378206.4,294.9786982]],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[\\\"NTv2\\…" ,
  "essence": {
    "authCode": { … },
    "name": "Fallback NAD27 to WGS 84 (79)/NAD27 to WGS 84 (33)",
    "policy": "Fallback",
    "type": "CT",
    "cts": [ … ],
    "ver": "PE_10_3_1"
  }
}