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Posted to batik-users@xmlgraphics.apache.org by John Pybus <jo...@pybus.org> on 2005/05/07 20:17:34 UTC
rendered position of elements in an SVG document
Hi,
I'm new to programming with Batik. I'd like to determine the final
rendered position of particular elements in an SVG document. I
understand that I can parse the document into a DOM, and think I then
need to use the bridge package to associate the DOM with gvt Nodes which
I can query. Am I on the right track, and how would I go about doing
this? The documentation is a bit light in this area.
Many thanks,
John
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Re: rendered position of elements in an SVG document
Posted by John Pybus <jo...@pybus.org>.
Thomas DeWeese wrote:
> Hi John,
>
> Take a look at the Batik Wiki - in particular:
>
> http://wiki.apache.org/xmlgraphics-batik/BootSvgAndCssDom
Thank you!! That was _exactly_ the bit I was struggling to work out
from the API javadoc.
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Re: rendered position of elements in an SVG document
Posted by Thomas DeWeese <Th...@Kodak.com>.
Hi John,
Take a look at the Batik Wiki - in particular:
http://wiki.apache.org/xmlgraphics-batik/BootSvgAndCssDom
John Pybus wrote:
> Tonny Kohar wrote:
>
>> On Sat, 2005-05-07 at 19:17 +0100, John Pybus wrote:
>>
>>> I'm new to programming with Batik. I'd like to determine the final
>>> rendered position of particular elements in an SVG document. I
>>> understand that I can parse the document into a DOM, and think I then
>>> need to use the bridge package to associate the DOM with gvt Nodes
>>> which I can query. Am I on the right track, and how would I go about
>>> doing this? The documentation is a bit light in this area.
>>
>>
>> I think you are correct.
>
>
> Glad to hear I'm on track. My question is really how do I go about
> setting up the SVG/GVT Bridge; I'm not transcoding the SVG to anything
> else or rendering to an image, I just want to query positions. If I
> simply load my SVG into a batik DOM and query svgElement.getBBox() I get
> null pointer exceptions.
>
> John
>
>
>
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Re: rendered position of elements in an SVG document
Posted by John Pybus <jo...@pybus.org>.
Tonny Kohar wrote:
> On Sat, 2005-05-07 at 19:17 +0100, John Pybus wrote:
>
>>I'm new to programming with Batik. I'd like to determine the final
>>rendered position of particular elements in an SVG document. I
>>understand that I can parse the document into a DOM, and think I then
>>need to use the bridge package to associate the DOM with gvt Nodes which
>>I can query. Am I on the right track, and how would I go about doing
>>this? The documentation is a bit light in this area.
>
> I think you are correct.
Glad to hear I'm on track. My question is really how do I go about
setting up the SVG/GVT Bridge; I'm not transcoding the SVG to anything
else or rendering to an image, I just want to query positions. If I
simply load my SVG into a batik DOM and query svgElement.getBBox() I get
null pointer exceptions.
John
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Re: rendered position of elements in an SVG document
Posted by Tonny Kohar <to...@kiyut.com>.
Hi,
On Sat, 2005-05-07 at 19:17 +0100, John Pybus wrote:
> I'm new to programming with Batik. I'd like to determine the final
> rendered position of particular elements in an SVG document. I
> understand that I can parse the document into a DOM, and think I then
> need to use the bridge package to associate the DOM with gvt Nodes which
> I can query. Am I on the right track, and how would I go about doing
> this? The documentation is a bit light in this area.
I think you are correct.
- For pure SVG DOM you can query svgElement.getBBox()
- For Batik SVG/Bridge/GVT you can query gvtNode.getBounds()
Regards
Tonny Kohar
--
Sketsa
SVG Graphics Editor
http://www.kiyut.com
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