[OASIS Issue Tracker] (OFFICE-3750) spec and implementation not aligned for angle format in draw:transform, skewX/skewY

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    [ https://issues.oasis-open.org/browse/OFFICE-3750?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=81944#comment-81944 ] 

Michael Stahl commented on OFFICE-3750:
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Regina and me have tested with the attached ODF 1.3 documents.

they contain 4 shapes, from bottom to top with +45Â rotation, -45Â rotation, +45Â skewX, -45Â skewX

in the "test13_rad" files, the angles are expressed as radians; in the "test13_deg" files as degrees.

see results in attached tests.ods

of 13 text document consumers,10 interpreted rotation angle as radians, 0 as degrees.

of 13 text document consumers, 3 interpreted skew angle as radians, 0 as degrees.

of 10 presentation document consumers,10 interpreted rotation angle as radians, 0 as degrees.

of 10 presentation document consumers, 4 interpreted skew angle as radians, 0 as degrees.

Microsoft Word 2013 and PowerPoint 2013 interpret rotation angle the same as everybody else if it's negative, but inversely if it's positive - that is the practical interop issue we see, and it is not about radians vs. degrees.

> spec and implementation not aligned for angle format in draw:transform, skewX/skewY
> -----------------------------------------------------------------------------------
>
>                 Key: OFFICE-3750
>                 URL: https://issues.oasis-open.org/browse/OFFICE-3750
>             Project: OASIS Open Document Format for Office Applications (OpenDocument) TC
>          Issue Type: Bug
>          Components: Graphics, Part 1 (Schema)
>    Affects Versions: ODF 1.2
>            Reporter: Thorsten Zachmann
>            Priority: Major
>             Fix For: ODF-Next
>
>         Attachments: test13_deg.odp, test13_deg.odt, test13_rad.odp, test13_rad.odt, tests.ods
>
>
> In the odf spec 1.2 it is mentioned that the angles in draw:transform are given in degree. In 1.1 this was not specified. Looks like the applications use radiant instead of degree to specify this. Also there are quite a lot of documents already out that use radiant.



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