[OASIS Issue Tracker] Updated: (OFFICE-3390) what is the axis of agradient?

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     [ http://tools.oasis-open.org/issues/browse/OFFICE-3390?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Oliver-Rainer Wittmann updated OFFICE-3390:
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    Component/s: Graphics

> what is the axis of a gradient?
> -------------------------------
>
>                 Key: OFFICE-3390
>                 URL: http://tools.oasis-open.org/issues/browse/OFFICE-3390
>             Project: OASIS Open Document Format for Office Applications (OpenDocument) TC
>          Issue Type: Bug
>          Components: Graphics, Public Review
>    Affects Versions: ODF 1.2 CD 05
>            Reporter: Andreas Guelzow 
>             Fix For: ODF 1.2 CD 06
>
>
> A draw:gradient has among others the attributes draw:angle and draw:style. 
> One possible value for draw:style is "linear", this is defined as: " a gradient where the colors blend along a linear vector perpendicular to the axis of the gradient."
> If the colors blend along a vector perpendicular to the axis, then along the axis, the color should be constant, but the definition of draw:angle is:
> "The draw:angle attribute specifies an angle that rotates the axis at which the gradient values are interpolated. " So apparently the colours are interpolated along the axis, not perpendicular to it.
> This is a conflict.
> Once again of course, we do not specify whether the angle is given in mathematically positive (ie. counter clockwise) sense and where the 0 degree axxis is.

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