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Subject: [OASIS Issue Tracker] Commented: (OFFICE-1823) ISO/IEC JTC 1/SC 34N 1078 : DEFECT REPORT NUMBER JP2-32

    [ http://tools.oasis-open.org/issues/browse/OFFICE-1823?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=19665#action_19665 ] 

Dennis Hamilton commented on OFFICE-1823:

With respect to the added paragraph at the beginning of 9.4, I think there are some additional difficulties.  First, 3D Scenes are 3D Shapes, so Scenes can be nested in other Scenes.  This impacts the way this is described.

"3D Shapes are used to defined geometry inside coordinate systems." seems to have something missing.  

I think what is being said is something like:

3D Scenes consist of geometrical shapes, including interior 3D Scenes, drawn in the three-dimensional coordinate system that is established in the outermost 3D Scene.  Each interior 3D Shape is defined in terms of a local coordinate system that may be transformed relative to the coordinate system of the 3D Scene that contains the 3D Shape.  All coordinate systems used are right-handed with respect to rotations about a specified axis.  The viewpoint of the presentation is established with the outermost 3D Scene.

I don't think that the right-hand rule is defined adequately enough unless we can say more about the presumed orientation of the axes at any local level.  The situation and orientation of the outermost 3D Scene axes is also important.  

For example, does rotation about the Y axis start at the positive Z axis and rotate toward the positive X axis, then to the negative Z axis, then the negative X axis and then the positive Z axis, contining in that progression (+Z, +X, -Z, -X, +Z, ...) until the rotation is completed?
Do we know these for the plane drawing frames and what is the relationship of the outermost 3D Scene to this?  Or does it start at +X, not +Z?  (these are both right-handed progressions, looking down +Y toward the XZ plane at Y=0).

Finally, considering how substantive all of this information is, I wonder if we can safely accomplish this by an errata in ODF 1.0? I don't fancy the alternative, but it is not clear to me that we can nail down all of these particulars by an Errata so easily.

> --------------------------------------------------------
>                 Key: OFFICE-1823
>                 URL: http://tools.oasis-open.org/issues/browse/OFFICE-1823
>             Project: OASIS Open Document Format for Office Applications (OpenDocument) TC
>          Issue Type: Bug
>    Affects Versions: ODF 1.0, ODF 1.0 (second edition), ODF 1.0 Errata 02
>            Reporter: Robert Weir 
>            Assignee: Svante Schubert 
>             Fix For: ODF 1.0 Errata CD 5
> Transcribed from http://www.itscj.ipsj.or.jp/sc34/open/1078.htm
> Original author: "MURATA Makoto (FAMILY Given)" <eb2m-mrt@asahi-net.or.jp>
> QUALIFIER 	clarification required
> REFERENCES IN DOCUMENT 	Clause 15.22.8 thru 15.22.10
> NATURE OF DEFECT 	These subclauses are incomprehensible.
> SOLUTION PROPOSED BY THE SUBMITTER 	Add diagrams and introduce more explanatory text.

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