id: https://nde.nl/ontology/hc/class/Alignment
name: alignment_class
title: Alignment Class
description: |
  Represents positioning or alignment information for content elements.
  
  **USE CASES**:
  - Caption/subtitle positioning (top, bottom, left, right)
  - Text alignment within containers
  - Visual element placement in layouts
  
  **PROPERTIES**:
  - horizontal_alignment: left, center, right, justify
  - vertical_alignment: top, middle, bottom
  - position_value: Numeric or named position value
  
  **RELATIONSHIP TO Caption**:
  Alignment can be used with Caption to specify where subtitles appear
  on screen (e.g., bottom-center is typical default).
imports:
  - linkml:types
prefixes:
  linkml: https://w3id.org/linkml/
  hc: https://nde.nl/ontology/hc/
  schema: http://schema.org/
default_prefix: hc
classes:
  Alignment:
    class_uri: hc:Alignment
    description: |
      Positioning or alignment information for content elements.
      Captures horizontal alignment, vertical alignment, and position values.
    slots:
      - horizontal_alignment
      - vertical_alignment
      - position_value
      - position_unit
    slot_usage:
      horizontal_alignment:
        range: string
        required: false
        examples:
          - value: "left"
            description: Left-aligned content
          - value: "center"
            description: Center-aligned content
          - value: "right"
            description: Right-aligned content
      vertical_alignment:
        range: string
        required: false
        examples:
          - value: "top"
            description: Top-aligned (e.g., top subtitles)
          - value: "bottom"
            description: Bottom-aligned (default for subtitles)
          - value: "middle"
            description: Vertically centered
      position_value:
        range: string
        required: false
        description: Numeric or named position value
        examples:
          - value: "10"
            description: Position 10 units from reference
          - value: "default"
            description: Default positioning
      position_unit:
        range: string
        required: false
        description: Unit of measurement for position (px, %, em, etc.)
        examples:
          - value: "px"
            description: Pixels
          - value: "%"
            description: Percentage of container
slots:
  horizontal_alignment:
    slot_uri: hc:horizontalAlignment
    range: string
    description: Horizontal alignment (left, center, right, justify)
  vertical_alignment:
    slot_uri: hc:verticalAlignment
    range: string
    description: Vertical alignment (top, middle, bottom)
  position_value:
    slot_uri: hc:positionValue
    range: string
    description: Numeric or named position value
  position_unit:
    slot_uri: hc:positionUnit
    range: string
    description: Unit of measurement for position