Relations

Relation fields in Ango Annotation Format exports.

The Ango Annotation Format supports the following relation types:

• Single Relation

  • Unidirectional

  • Bidirectional

• Group

Overview of Relations in the Ango Annotation Format

Fields

Common

• objectId - A unique identifier for the relation. (e.g. each new relation has a different objectId.)

• schemaId - A unique identifier for the chosen labeling tool. (e.g. all relations of the same category will have the same schemaId.)

• title - External name of the tool (e.g. age, gender, color).

Single Relation

• from - objectID of the first (departure) annotation in the relation.

• to - objectID of the last (arrival) annotation in the relation.

• direction - Direction of the relation, whether straight or bidirectional.

Group

• group - If the relation is a group relation (e.g. is contains more than two members), a list of objectIDs of the objects contained in the group.

Sample Relation Export

"relations": [
  {
    "objectId": "d64c9411b9e040691f72813",
    "schemaId": "bbe5d081089f774a2fef435",
    "from": "f9b1e50ec081e156c718420",
    "to": "961dc4d7cb430aca8f2f096",
    "direction": "straight",
    "title": "singleRelationName"
  },
  {
    "objectId": "5b7563fe8f76a2fdd1aa889",
    "schemaId": "1c2d75ce36cbf0aea306012",
    "group": [
      "58a07df98f7747a597a8437",
      "2c93005a971933a40831133",
      "065fb5c8738fef22e267333"
    ],
    "title": "groupRelationName"
  }  
]