Hi floyd,
> This element owns a transform matrix. Now I want to find out, where the 4
> points of this rect are exactly located.
I guess this is a general SVG question (not Batik-specific). When
asking about this sort of stuff, you may find the SVG Developers
mailing list [1] a bit more responsive. ;-)
I'm not sure if Batik provides some sort of convenience in order to
determine this but, thinking general, you can do the maths and
determine the coordinates yourself: please consider getting a bit of
background on the SVG coordinate system regarding transform matrices
[2]. ;-)
> My idea was this, to apply the transform matrix on the 4 points. Is this the
> right way? And if so, how can it be done?
Yes, I'd say so. Whenever you want to transform a whole object, or set
of objects (using the <g> element to group them), a transform is the
most appropriate mechanism. The transform matrix can sometimes be a
little harder to read, but you may also specify transforms using the
textual version ("translate", "scale", "rotate", etc.). Please take a
look at the transform attribute [3] definition.
Hope this helps,
Helder
[1] http://tech.groups.yahoo.com/group/svg-developers/
[2] http://www.w3.org/TR/SVG11/coords.html#TransformMatrixDefined
[3] http://www.w3.org/TR/SVG11/coords.html#TransformAttribute
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