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Re: getTransformToElement

From: Sigurd Lerstad <sigler@bredband.no>
Date: Thu, 30 Jan 2003 14:08:07 +0100
Message-ID: <001401c2c860$a1c0fbf0$591273d5@mmstudio>
To: "Dean Jackson" <dean@w3.org>
Cc: <www-svg@w3.org>

Hello,

I should have been clearer, I'm making my own SVG implementation, the
confusion comes from myself :)

I'm wondering, how should I implement getTransformToElement? what's the
algorithm.

thanks again,

--
Sigurd Lerstad

> > Hello,
> >
> > My math skills aren't perfect...
> >
> > Can somone explain/give the algorithm for
> > ISVGLocatable::getTransformToElement?
> > I don't quite understand what it does.
> >
> > Also, can it be used to get the matrix of the transform attribute of an
> > element, I've used getCTM for this, but now that I've reread the spec,
that
> > method seems to do something completely different :)
>
> Your confusion may be coming from a bug in the Adobe
> viewer (I assume that is what you are using.. you don't say).
> Adobe have not implemented getCTM correctly.
>
> getCTM should return the transformation from the current user
> coordinates to the nearest viewport.
>
> getTransformToElement returns the transformation from the
> current user coordinate to the provided element.
Received on Wednesday, 29 January 2003 07:05:20 GMT

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