Compound CT Essence

Compound cartographic transformation.

typestring(Item Type.)required

The type identifier, fixed to 'CT'.

Default:"CT"

Value:"CT"

Example:"CT"

namestring(CT Name)required

The name of the compound cartographic transformation.

Example:"Fallback NAD27 to WGS 84 (79)/NAD27 to WGS 84 (33)"

verstring(Version)

The engine version issuing the definition.

Example:"PE_10_3_1"

policystring(Policy)required

The transformation policy - concatenated or fallback.

Enum:"Fallback""Concatenated"

Example:"Fallback"

ctsArray of objects(Transformation List )required

The ordered list of cartographic transformations.

authCodeobject(Authority Code)

The AuthorityCode for this item.

{
  "type": "CT",
  "name": "Fallback NAD27 to WGS 84 (79)/NAD27 to WGS 84 (33)",
  "ver": "PE_10_3_1",
  "policy": "Fallback",
  "cts": [
    { … }
  ],
  "authCode": {
    "auth": "EPSG",
    "code": "4326"
  }
}