[OASIS Issue Tracker] Commented: (OFFICE-3849) "Concave" in 9.2.5 of ISO/IEC 26300

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    [ http://tools.oasis-open.org/issues/browse/OFFICE-3849?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=35476#action_35476 ] 

Camilla Boemann commented on OFFICE-3849:
-----------------------------------------

It's implemented in Calligra and here is what I read from the code:

we draw the polygon on a unit circle, but then everything is scaled according to width and height. So yes we do allow width != height

the sharpness is "sort of the difference" between the convex and concave points. If it's 0 then there are no "teeth"
 inner radius is calculated like: m_radius[base] = m_radius[tip] * (100-percent)/100

so in the end we DO have an ellipse

> "Concave" in 9.2.5 of ISO/IEC 26300
> -----------------------------------
>
>                 Key: OFFICE-3849
>                 URL: http://tools.oasis-open.org/issues/browse/OFFICE-3849
>             Project: OASIS Open Document Format for Office Applications (OpenDocument) TC
>          Issue Type: Bug
>          Components: Graphics
>    Affects Versions: ODF 1.0 (second edition)
>            Reporter: Patrick Durusau
>            Priority: Minor
>
> This clause mentions ellipses, but an ellipsis cannot be represented by a single radius and single center.
> Submitted as part of SC34N1979, a defect report from Japan.

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