Definition of "method"

NOTE: Markdown does not support highlighting in color, so bold/italic has been used to highlight the material being discussed. This issue is extracted from the document submitted by Roger Lott at https://github.com/opengeospatial/CRS-JSON-Encoding/blob/main/ProjJson%20v0-7%20RL%202024-06-16.docx for discussion at the CRS SWG meeting OGC held during the Montreal June 2024 TC meeting.

"method": {
"type": "object",
"properties": {
"$schema" : { "type": "string" },
"type": { "type": "string", "enum": ["OperationMethod"]},
"name": { "type": "string" },

"formula": { "type": ""#/definitions/formula" },

    "id": { "$ref": "#/definitions/id" },
    "ids": { "$ref": "#/definitions/ids" }
  },
  "required" : [ "name" ],
  "allOf": [
    { "$ref": "#/definitions/id_ids_mutually_exclusive" }
  ],
  "additionalProperties": false
},

"$comment": "[RL] In 19111/Topic 2, operation method requires one of a formula or a formula citation. In WKT2 for reasons of brevity it was decided to rely on an identifier (authority reference) to a method in a registry such as EPSG, although this is optional. If CRS JSON is to be capable of carrying the full definition of a coordinate operation (transformation, conversion or point motion operation) then method will need to require one of ID, formula or formula citation."

Leggere il file ProjJson v0-7 RL 2024-06-16.docx indicato e confrontare lo schema del metodo proposto con la specifica attuale CRS JSON Encoding. Stabilire se debba essere obbligatorio formula, formula citation o identifier, quindi aggiornare la specification una volta che il CRS SWG avrà concordato la definizione.