91 lines
3.4 KiB
YAML
91 lines
3.4 KiB
YAML
id: https://nde.nl/ontology/hc/class/TextDirection
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name: TextDirection
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title: Text Direction Class
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prefixes:
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linkml: https://w3id.org/linkml/
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hc: https://nde.nl/ontology/hc/
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schema: http://schema.org/
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crm: http://www.cidoc-crm.org/cidoc-crm/
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skos: http://www.w3.org/2004/02/skos/core#
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default_prefix: hc
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imports:
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- linkml:types
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- ../metadata
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- ../slots/has_or_had_code
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- ../slots/has_or_had_label
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classes:
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TextDirection:
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class_uri: hc:TextDirection
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description: |
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The directional orientation of text flow on an information carrier.
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**Purpose**:
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Captures how text is read/written on manuscripts, inscriptions, and other
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information carriers. Essential for proper display and understanding of
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historical documents from different writing traditions.
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**Common Directions**:
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| Direction | Scripts | Example |
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|-----------|---------|---------|
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| LEFT_TO_RIGHT | Latin, Cyrillic, Greek | Modern European books |
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| RIGHT_TO_LEFT | Arabic, Hebrew, Syriac | Quran manuscripts, Torah scrolls |
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| TOP_TO_BOTTOM | Traditional CJK | Classical Chinese scrolls |
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| BOUSTROPHEDON | Ancient Greek, Etruscan | "Ox-turning" alternating lines |
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**Relationship to WritingSystem**:
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TextDirection is distinct from WritingSystem (ISO 15924 script codes).
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A single script may have multiple historical or regional direction conventions.
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**Usage**:
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Used with `has_or_had_direction` slot in InformationCarrier and similar classes.
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**Migrated From**: text_direction string slot (2026-01-16) per Rule 53/56
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slots:
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- has_or_had_label
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- has_or_had_code
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slot_usage:
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has_or_had_label:
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description: Human-readable label for the text direction (e.g., "Left to Right", "Right to Left")
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examples:
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- value: "Left to Right"
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- value: "Right to Left"
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- value: "Top to Bottom"
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has_or_had_code:
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description: |
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Short code for the text direction.
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Common codes: LTR, RTL, TTB, BTT, BOUSTROPHEDON
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examples:
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- value: "LTR"
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description: Left to right
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- value: "RTL"
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description: Right to left (Arabic, Hebrew)
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- value: "TTB"
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description: Top to bottom (traditional CJK)
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- value: "BOUSTROPHEDON"
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description: Alternating direction
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annotations:
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custodian_types: '["L", "A", "M", "R", "H"]'
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custodian_types_rationale: Relevant to libraries, archives, museums, research centers, and holy sites holding manuscripts
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specificity_score: 0.45
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specificity_rationale: Moderately specific class for manuscript/document analysis
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examples:
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- value:
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has_or_had_code: "LTR"
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has_or_had_label: "Left to Right"
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description: Standard Western European text direction
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- value:
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has_or_had_code: "RTL"
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has_or_had_label: "Right to Left"
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description: Arabic or Hebrew manuscript text direction
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- value:
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has_or_had_code: "TTB"
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has_or_had_label: "Top to Bottom"
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description: Traditional Chinese/Japanese vertical writing
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- value:
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has_or_had_code: "BOUSTROPHEDON"
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has_or_had_label: "Boustrophedon"
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description: Ancient alternating direction (lines alternate LTR and RTL)
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