Ocx

Removed
* [56 Remove SectionRef from EndCutEnd](https://github.com/OCXStandard/OCX_Schema/issues/56)
* [58 Remove unused substitution groups](https://github.com/OCXStandard/OCX_Schema/issues/58)

Changed
* [49 ReferencePlanes & FrameTable: Revert changes in Issue 36](https://github.com/OCXStandard/OCX_Schema/issues/49)
Removed
* [35 Remove the duplicate trace line definition on the Stiffener and Seam](https://github.com/OCXStandard/OCX_Schema/issues/35)
* [50 Remove WebContour and FlangeContour from the schema](https://github.com/OCXStandard/OCX_Schema/issues/50)
Changed
* [51 LimitedBy BoundingBox: Use the contour start and end points instead](https://github.com/OCXStandard/OCX_Schema/issues/51)

Changed
* [41 Make Length and Area mandatory on geometry entities](https://github.com/OCXStandard/OCX_Schema/issues/41)
* [40 rename edgeReinforcement atttribute](https://github.com/OCXStandard/OCX_Schema/issues/40)
* [36 Resolve naming confusion of FrameTables](https://github.com/OCXStandard/OCX_Schema/issues/36)
* [8 Root Point vs Trace Line Definition](https://github.com/OCXStandard/OCX_Schema/issues/8)
Removed
* [35 Remove the duplicate trace line definition on the Stiffener](https://github.com/OCXStandard/OCX_Schema/issues/35)

Fixed
* [42 Fix bug in Hole2D](https://github.com/OCXStandard/OCX_Schema/issues/42)
* [38 Broken link in ShipDesignation](https://github.com/OCXStandard/OCX_Schema/issues/38)
Changed
* [20 Compact representation of Point3D](https://github.com/OCXStandard/OCX_Schema/issues/20)

Removed
- Delete ``SchemaChange`` documentation as we have converted to this ``CHANGELOG.md``
- Remove ``substitutionGroup`` from ``entityRefBase`` and ``BoundedRef``
Fixed
1. [3 Fix bug in CompartmentFace](https://github.com/OCXStandard/OCX_Schema/issues/3)
2. [4 Fix bug in CompartmentFace](https://github.com/OCXStandard/OCX_Schema/pull/4)
3. [16 and 17 Fix schema typos](https://github.com/OCXStandard/OCX_Schema/issues/16)

- Rename ``functionType`` enumerator: ``DECK: Weateher deck -> DECK: Weather deck``. (oca) ([16](https://github.com/OCXStandard/OCX_Schema/issues/16))
- Rename ``functionType`` enumerator: ``DECK: Tweeen deck -> DECK: Tween deck``. (oca) ([16](https://github.com/OCXStandard/OCX_Schema/issues/16))
- Rename ``functionType`` enumerator: ``DECK: DECK: Weelhouse deck -> DECK: Wheelhouse deck``. (oca) ([16](https://github.com/OCXStandard/OCX_Schema/issues/16))
- Rename attribute ``lenghtClass->lengthClass``. (oca) ([16](https://github.com/OCXStandard/OCX_Schema/issues/16))
- Rename attribute of element ``XRefPlanes``: ``isReveresed -> isReversed`` (oca) ([16](https://github.com/OCXStandard/OCX_Schema/issues/16))
- Rename ``PentetratingObject_T -> PenetratingObject_T``. (oca) ([16](https://github.com/OCXStandard/OCX_Schema/issues/16))
- Rename ``liquidCargoType`` enumerator: ``chemichal -> chemical``. (oca) ([16](https://github.com/OCXStandard/OCX_Schema/issues/16))
- Rename ``liquidCargoType`` enumerator: ``hydroclorid acid -> hydrochloride acid lubricationg oil -> lubricating oil``. (oca) ([16](https://github.com/OCXStandard/OCX_Schema/issues/16))
- Rename ``liquidCargoType`` enumerator: ``lubricationg oil -> lubricating oil``. (oca) ([16](https://github.com/OCXStandard/OCX_Schema/issues/16))
- Rename ``gaseousCargoType`` enumerator: ``liquified natural gas->liquefied natural gas ``. (oca) ([16](https://github.com/OCXStandard/OCX_Schema/issues/16))
- Rename ``gaseousCargoType`` enumerator: ``liquified petroleum gas -> liquefied petroleum gas``. (oca) ([16](https://github.com/OCXStandard/OCX_Schema/issues/16))
- Rename ``itemRef`` enumerator: ``OccurenceGroup -> OccurrenceGroup``. (oca) ([16](https://github.com/OCXStandard/OCX_Schema/issues/16))
Added
1. [2 Add public license to schema](https://github.com/OCXStandard/OCX_Schema/pull/2)
2. [5 Assign a valid schema URL](https://github.com/OCXStandard/OCX_Schema/issues/5)
- Add ``Hole2DContour`` to ``refType``
- Include boilerplate Apache 2.0 license information to the ``Header`` attribute: ``license``. (oca)
Changed
1. [7 Bulb profile definition](https://github.com/OCXStandard/OCX_Schema/issues/7)
2. [20 Add compact representation of points](https://github.com/OCXStandard/OCX_Schema/issues/20)
- Made ``FlangeWidth`` optional on ``BulbFlat`` element. (oca) ([7](https://github.com/OCXStandard/OCX_Schema/issues/7))

[2.8.6_fix] - 2022-10-06
Intermediate version.

Release tag: [v2.8.6_fix](https://github.com/OCXStandard/OCX_Schema/releases/tag/v2.8.6_fix)


Changed
- Added the ``UnboundedGeometry`` tag to ``CompartmentFace``. (oca) ([3](https://github.com/OCXStandard/OCX_Schema/issues/3))

Added

- Add the attribute ``isUVspace``. The exporting application may set this attribute to true and provide the ``FreeEdgeCoordinates`` UV coordinates. This will only be relevant for NURBS3D curves. (oca) ``FreeEdgeCurve``
- Add a new type ``LONGITUDINAL: Top tank``. (oca) ``functionType``
- Add ``EdgeReinforcement`` entity used for describing edge reinforcements of free edges. (oca) ``EdgeReinforcement``
- Add the ``EdgeReinforcement`` entity. (oca) ``StiffenedBy``
- Add ``TraceLine``. (oca) ``EdgeReinforcement``
- Add ``ChildRef`` to occurrence group. (oca) ``EntityRefBase``
- Add missing mandatory attribute ``refType``.. (oca) ``RootRef``
- Add a new ``ZGrid`` concept which defines the grid positions of the vessel along the Z axis. (oca) ``ZGrid``
- Add a new ``YGrid`` concept which defines the grid positions of the vessel along the Y axis. (oca) ``YGrid``
- Add a new ``XGrid`` representing a frame table concept which is not to be confused with the existing ``FrameTables`` (in plural) entity.The ``XGrid`` is a concept which defines the frame positions of the vessel along the X axis by giving frame number, spacing and count.The purpose of the ``XGrid`` concept is to give a compact definition of the vessel grid system for navigating the 3D model. This concept shall not be used for crating bounds to other objects in ``LimitedBy``. (oca) ``XGrid``
- Add a new ``VesselGrid`` entity which defines a collection of X, Y and Z grid definitions. (oca) ``VesselGrid``
- Add ``EdgeReinforcement`` to enumerator. (oca) ``refType``

Changed
- Change model to ``Choice[2,2]``. (oca) ``BoundingBox``
- Change model to ``Choice[1,1]``. (oca) ``BarSection``
- Change the type ``LONGITUDINAL: Hopper side top tank`` to ``LONGITUDINAL: Hopper side upper``. (oca) ``functionType``
- Change ``LONGITUDINAL: Hopper side bilge`` to ``LONGITUDINAL: Hopper side bottom``. (oca) ``functionType``
- Rename ``FrameSpacingGroup`` to ``XSpacingGroup``. (oca) ``XSpacingGroup``
- Change ``Material`` to ``MaterialRef`` (oca) ``EdgeReinforcement``
- Remove ``BoundingBox`` from ``EdgeCurveRef`` and made ``EdgeCurveRef`` unbounded to reference more than one curve. (oca) ``EdgeCurveRef``
- Change ``EntityRefBase_T`` to ``RootRef_T``. (oca) ``RootRef``
- Change supertype from ``EntityBase`` to ``GeometryRepresentation`` (oca) ``Cell``
- Remove assertion on ``EntityBase`` as this is not necessary when ``IdBase`` has a mandatory attribute ``id``. (oca) ``EntityBase``
- Rename ``FrameTable`` to ``XGrid`` for a consistent semantic. (oca) ``VesselGrid``
- Rename ``EdgeReinforcement -> FlangeEdgeReinforcement`` as we now introduced a new ``EdgeReinforcement`` concept.. (oca) ``BracketParameters``

Fixed
- Make ``LimitedBy`` optional. (oca) ``Bracket``
- Typo in the attribute name ``firstGridNumber``. (oca) ``XSpacingGroup``
- Make ``LimitedBy`` optional. (oca) ``Pillar``
- The ``FrameTables`` entity is kept for backward compatibility. It might change in a future schema version.. (oca) ``CoordinateSystem``
- Make attribute ``id`` mandatory on all elements inheriting from ``IdBase``. (oca) ``IdBase``