$schema: https://json-schema.org/draft/2020-12/schema
description: Arc Feature with geometry by reference
allOf:
- $ref: https://ogcincubator.github.io/topo-feature/build/annotated/geo/topo/features/topo-feature/schema.yaml
- properties:
    topology:
      allOf:
      - $ref: https://ogcincubator.github.io/topo-feature/build/annotated/geo/topo/datatypes/topology/schema.yaml
      - oneOf:
        - properties:
            type:
              type: string
              const: Arc
            references:
              minItems: 3
              maxItems: 3
        - properties:
            type:
              type: string
              const: ArcWithCenter
            references:
              minItems: 3
              maxItems: 3
            orientation:
              type: string
              enum:
              - cw
              - ccw
          required:
          - orientation
        - properties:
            type:
              type: string
              const: ArcByChord
            references:
              minItems: 2
              maxItems: 2
            radius:
              type: number
            orientation:
              type: string
              enum:
              - cw
              - ccw
          required:
          - radius
          - orientation
        - properties:
            type:
              type: string
              const: CircleByCenter
            references:
              minItems: 1
              maxItems: 1
            radius:
              type: number
          required:
          - radius
        - properties:
            type:
              type: string
              const: CubicSpline
            references:
              minItems: 3
          not:
            required:
            - startTangentVector
            - endTangentVector
        - properties:
            type:
              type: string
              const: CubicSpline
            references:
              minItems: 2
            startTangentVector:
              properties:
                references:
                  minItems: 2
            endTangentVector:
              properties:
                references:
                  minItems: 2
          required:
          - startTangentVector
          - endTangentVector
    radius:
      type: number
      description: optional property of the feature defining radius according to coordinate
        reference system of the referenced geometry. Note where necessary to define
        geometry this is a mandatory sub-property of the topology property.
    arcLength:
      type: number
      description: optional property of the feature defining arcLength according to
        coordinate reference system of the referenced geometry.
  required:
  - topology