[x3d-public] X3D Semantic Web minutes: event-animation chains and representing accessType

[John Carlson]

This looks mildly interesting WSML,

https://en.wikipedia.org/wiki/Web_Services_Modeling_Language

John

On Mon, Apr 20, 2020 at 12:39 PM Don Brutzman <brutzman at nps.edu> wrote:

> Jakub and I had a useful meeting today.  We looked at X3D Ontology
> completeness to diagnose event animation chains.
>
> A design pattern for representing animation chains is described in detail
> as part of the following chapter slideset.  Single-page checklist also
> attached as a convenience.
>
> * X3D Graphics for Web Authors: Chapter 7, Event Animation Interpolation
>
> http://x3dgraphics.com/slidesets/X3dForWebAuthors/Chapter07EventAnimationInterpolation.pdf
>
> http://x3dgraphics.com/examples/X3dForWebAuthors/Chapter07EventAnimationInterpolation/
>
> slide 11.  "Event-animation design pattern. X3D can be imposing, there are
> many nodes. Nevertheless a simple design pattern is used for nearly every
> kind of animation.  his consistent event ROUTE pattern enables you to
> expertly animate most X3D scene behaviors."
>
> * Event-animation design pattern:
>    Trigger node (optional) -> TimeSensor -> Interpolator/Sequencer/Script
> -> Target node's field
>
> A 10-step algorithm for author creation of this design pattern is provided
> and has proven helpful.  Keeping a consistent pattern let's you avoid
> thinking that the various animation nodes are “really different” when they
> are not. It also helps you avoid skipping steps and making mistakes that
> are hard to debug afterwards.
>
> Example diagram also attached that illustrates the following model.
>
> * X3D Example Archives: X3D for Web Authors, Chapter 07 Event Animation
> Interpolation, Dolphin Morpher
>
> https://x3dgraphics.com/examples/X3dForWebAuthors/Chapter07EventAnimationInterpolation/DolphinMorpherIndex.html
>
> So, for X3D ontology, we want to see if we can write rules/queries to (a)
> illustrate event chains, and (b) diagnose whether any problems exist.
>
> Example problems:
> - mismatched ROUTE DEF or field-name values
> - mismatched data types,
> - mismatched accessType values,
> - missing pieces.
>
> So next step is to check X3D ontology for completeness of information
> provided.  As an example, let's look at Transform in X3D Ontology.  Excerpt:
>
> http://www.web3d.org/specifications/X3dOntology4.0
> ##################################################
> :Transform a owl:Class ;
>    rdfs:subClassOf :X3DGroupingNode ;
>    rdfs:label "Transform is a Grouping node that can contain most nodes." .
> # bboxCenter field inheritedFrom=X3DGroupingNode with
> accessType=initializeOnly, type=SFVec3f, default=0 0 0
> # bboxSize field inheritedFrom=X3DGroupingNode with
> accessType=initializeOnly, type=SFVec3f, default=-1 -1 -1,
> baseType=bboxSizeType
> :center a owl:DatatypeProperty ;
>    rdfs:domain :Transform ;
>    rdfs:range :SFVec3f .
> # children field inheritedFrom=X3DGroupingNode with
> accessType=inputOutput, type=MFNode
> # displayBBox field inheritedFrom=X3DGroupingNode with
> accessType=inputOutput, type=SFBool, default=false
> :rotation a owl:DatatypeProperty ;
>    rdfs:domain :Transform ;
>    rdfs:range :SFRotation .
> :scale a owl:DatatypeProperty ;
>    rdfs:domain :Transform ;
>    rdfs:range :SFVec3f .
> :scaleOrientation a owl:DatatypeProperty ;
>    rdfs:domain :Transform ;
>    rdfs:range :SFRotation .
> :translation a owl:DatatypeProperty ;
>    rdfs:domain :Transform ;
>    rdfs:range :SFVec3f.
> ##################################################
>
> So, our prior effort was not complete.  Looks like we need to come up with
> a proper representation for accessType and defaultValue field to achieve
> full expressive power in X3D Ontology that already exists in X3DUOM.
>
>    rdfs:TBD1 accessType inputOutput;
>    rdfs:TBD2 defaultValue 0;
>
> ... so that is how far we got.  More thinking and likely additions to to
> X3D Ontology will follow.
>
> all the best, Don
> --
> Don Brutzman  Naval Postgraduate School, Code USW/Br
> brutzman at nps.edu
> Watkins 270,  MOVES Institute, Monterey CA 93943-5000 USA   +1.831.656.2149
> X3D graphics, virtual worlds, navy robotics
> http://faculty.nps.edu/brutzman
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