Replace geometry_type with vector:geometry_type

Author: m-mohr

CHANGELOG.md

@@ -9,7 +9,6 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 
-- Added `geometry_type` property to Column Object
 - Added `table:primary_datetime`
 - Allow most fields also in the Asset Object
 

README.md

@@ -84,30 +84,19 @@ Column objects contain information about each colum in the table.
 | name          | string | **REQUIRED**. The column name. |
 | description   | string | Detailed multi-line description to explain the dimension. CommonMark 0.29 syntax MAY be used for rich text representation. |
 | type          | string | Native data type of the column. If using a file format with a type system (like Parquet), we recommend you use those types. |
-| geometry_type | string | Geometry type provided by the column. Only applies to geometry columns, e.g. the column identified by the `table:primary_geometry`. |
 
 Other properties such as `description`, `license`, `unit`, `data_type` and `statistics` from
 [STAC common metadata](https://github.com/radiantearth/stac-spec/blob/master/commons/common-metadata.md)
 can be used in the Column Object.
 
+It is also recommended to add `vector:geometry_types` from the [Vector Extension](https://github.com/stac-extensions/vector)
+to the column that describe geometry data, e.g. the column identified by the `table:primary_geometry` field.
+
 `type` and `data_type` describe the same information, but `type` should use the native name in the given file format and `data_type` describes the [standardized data type name according to the STAC specification](https://github.com/radiantearth/stac-spec/blob/master/commons/common-metadata.md#data-types).
 
 Columns can also include additional information from other extensions that are not otherwise covered on the asset-level
 and are column specific, e.g. [projection] extension information for additional geometry columns.
 
-### geometry_type
-
-Describes the geometry type provided by the column. Do not provide the property, if mixed geometry types occur.
-
-Must be one of the GeoJSON geometry types:
-
-- `Point`
-- `MultiPoint`
-- `LineString`
-- `MultiLineString`
-- `Polygon`
-- `MultiPolygon`
-
 ## Table Object
 
 **DEPRECATED:** Table objects contain high-level summaries about a table.

examples/collection.json

@@ -1,7 +1,8 @@
 {
   "stac_version": "1.1.0",
   "stac_extensions": [
-    "https://stac-extensions.github.io/table/v1.2.0/schema.json"
+    "https://stac-extensions.github.io/table/v1.2.0/schema.json",
+    "https://stac-extensions.github.io/vector/v0.1.0/schema.json"
   ],
   "type": "Collection",
   "id": "collection",
@@ -36,7 +37,9 @@
           "name": "geometry",
           "description": "The observation location.",
           "type": "binary",
-          "geometry_type": "Polygon"
+          "vector:geometry_types": [
+            "Polygon"
+          ]
         },
         {
           "name": "datetime",
@@ -80,4 +83,4 @@
       "rel": "item"
     }
   ]
-}
+}

json-schema/schema.json

@@ -192,17 +192,6 @@
           "type": {
             "type": "string",
             "minLength": 1
-          },
-          "geometry_type": {
-            "type": "string",
-            "enum": [
-              "Point",
-              "LineString",
-              "Polygon",
-              "MultiPoint",
-              "MultiLineString",
-              "MultiPolygon"
-            ]
           }
         }
       }