Definition of "parametric_crs" and "paramatric_cs" (Missing)

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.

"parametric_crs": {
  "type": "object",

"allOf": [{ "$ref": "#/definitions/object_usage" }],

  "properties": {
    "type": { "type": "string", "enum": ["ParametricCRS"] },
    "name": { "type": "string" },
    "datum": { "$ref": "#/definitions/parametric_datum" },

"coordinate_system": { "$ref": "#/definitions/coordinate_system" }, STRIKE THIS LINE
"coordinate_system": { "$ref": "#/definitions/parametric_cs" },

    "$schema" : {},

"scope": {},
"area": {},
"bbox": {},
"vertical_extent": {},
"temporal_extent": {},
"usages": {},

    "remarks": {},
    "id": {}, "ids": {}
  },

"required" : [ "name", "datum", "coordinate system" ],

  "additionalProperties": false
},

"$comment": "[RL] See comment regarding usage under compound_crs."

"$comment": "[RL] A parametric CRS should be constrained to having a parametric_cs."

"$comment": "[RL] In 19111/Topic 2, a parametric CRS may have a datum ensemble rather than a datum. 19162/WKT2 spec does not offer the option. Should CRS JSON?"

"$comment": "[RL] A parametric CRS must have a datum (or a datum_ensemble, see previous comment). The schema would be clearer if this was included in the required list."

"parametric_cs": { }

"$comment": "[RL] Definition to be completed. The definition would constrain a parametric CS to have 1 axis."

issue #39 で引用されているスキーマフラグメントから始め、ProjJson v0-7 RL 2024-06-16.docx と比較してください。parametric CRS の datum の選択、必須プロパティ、使用メタデータ、および 1 軸のパラメトリック座標系に関する未解決の問題を確認してください。parametric_crs と parametric_cs の定義が完成し、合意された制約が一貫して表現された時点で作業は完了です。