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Visual Label Reference

Purpose: Inline example gallery for the current Label Studio class set Rule of use: These images are visual anchors for consistency. The schema definitions still live in Label Studio Schema.

How To Use This Page

  • Use this page when two annotators are unsure how large a region should be.
  • Use the smallest meaningful object a reviewer would name in one phrase.
  • When in doubt, prefer the schema's object boundary over a visually tempting but lower-level box.

Raw files

Reference Sheet

Reference sheet of all 18 classes

1. title_block

Whole title block area as one box.

title_block example

2. revision_block

Whole revision table or block as one box.

revision_block example

3. parts_list_bom

Entire BOM or parts-list table as one box.

parts_list_bom example

4. notes_block

Whole general-notes area as one box.

notes_block example

5. general_tolerance_note

General tolerance statement as one box.

general_tolerance_note example

6. drawing_view

Boundary of a single orthographic, pictorial, or enlarged view.

drawing_view example

7. section_cutting_plane

Entire cutting-plane indicator including arrows and label.

section_cutting_plane example

8. detail_callout

Circular detail identifier with leader as one object.

detail_callout example

9. item_balloon_find_number

Balloon and number together.

item_balloon_find_number example

10. dimension_cluster

Dimension text, arrows, and line grouped as one object.

dimension_cluster example

11. leader_callout

Leader line plus attached note or callout text as one object.

leader_callout example

12. hole_callout

Complete hole-note string as one object.

hole_callout example

13. thread_callout

Complete thread specification string as one object.

thread_callout example

14. datum_symbol

Datum symbol with attached leader or triangle if present.

datum_symbol example

15. feature_control_frame

Entire GD&T frame as one box.

feature_control_frame example

16. surface_finish_symbol

Whole surface texture symbol and value.

surface_finish_symbol example

17. weld_symbol

Weld symbol plus tail or reference where connected.

weld_symbol example

18. section_hatch_region

Continuous hatch area inside the sectioned part.

section_hatch_region example

Sources