``GEM001`` Closed shell edge usage - v3
========================================================================================================================================================================================================

.. parsed-literal::

   001 | \@informal-proposition
   002 | \@GEM
   003 | \@version3
   004 | 
   005 | Feature: GEM001 - Closed shell edge usage
   006 | The rule verifies that closed shells and closed facesets edges are referenced correctly.
   007 | 
   008 |   Scenario Outline: IfcClosedShell
   009 | 
   010 |     :doc:`Given An .IfcClosedShell. </steps/stepsentity_selectionpy_Anentity_opt_stmt>`
   011 | 
   012 |     :doc:`Then \<Statement\> </steps/thensreferencepy_Everysomethingmustbereferencedexactlynumdtimesbytheloopsoftheface>`
   013 | 
   014 |     Examples:
   015 |       | Statement |
   016 |       | Every edge must be referenced exactly 2 time(s) by the loops of the face |
   017 |       | Every oriented edge must be referenced exactly 1 time(s) by the loops of the face |
   018 | 
   019 | 
   020 |     Scenario Outline: Check constraints for FaceSets; TriangulatedFaceSet and PolygonalFaceSet
   021 | 
   022 |       :doc:`Given An .\<entity\>. </steps/stepsentity_selectionpy_Anentity_opt_stmt>`
   023 |       :doc:`Given .Closed. ^is^ True </steps/stepsattribute_valuepy_attributecomparison_operatorequal_or_not_equalvalue>`
   024 | 
   025 |       :doc:`Then \<Statement\> </steps/thensreferencepy_Everysomethingmustbereferencedexactlynumdtimesbytheloopsoftheface>`
   026 | 
   027 |       Examples:
   028 |         | entity                   | Statement                                                           |
   029 |         | IfcTriangulatedFaceSet   | Every edge must be referenced exactly 2 time(s) by the loops of the face  |
   030 |         | IfcTriangulatedFaceSet   | Every oriented edge must be referenced exactly 1 time(s) by the loops of the face |
   031 |         | IfcPolygonalFaceSet      | Every edge must be referenced exactly 2 time(s) by the loops of the face  |
   032 |         | IfcPolygonalFaceSet      | Every oriented edge must be referenced exactly 1 time(s) by the loops of the face |

.. rubric:: Version history

.. list-table::
   :header-rows: 1

   * - Version
     - Tag
     - Date
     - Commit
     - Rule link
   * - v1
     - :tag:`v0.6.6`
     - 2022-07-21
     - :commit:`8dbd61e4c4260d8433ed8524aa9e1bfc7167c687`
     - `view <https://github.com/buildingSMART/ifc-gherkin-rules/blob/release/0.6.6/features/GEM001_Closed-shell-edge-usage.feature>`_
   * - v2
     - :tag:`v0.6.6`
     - 2024-08-15
     - :commit:`7157a9d9d311f6a80fbf1a0ac43f3781f7cb0000`
     - `view <https://github.com/buildingSMART/ifc-gherkin-rules/blob/release/0.6.6/features/GEM001_Closed-shell-edge-usage.feature>`_
   * - v3
     - :tag:`v0.8.0`
     - 2025-08-26
     - :commit:`d8d858fd7f7ce0cfb41840d6da1cf76607fc9d00`
     - `view <https://github.com/buildingSMART/ifc-gherkin-rules/blob/release/0.8.0/features/rules/GEM/GEM001_Closed-shell-edge-usage.feature>`_