David Proft wrote:
First of all, many thanks to Thomas and Tony for their earlier advice on looking at the slideshow app.
Well, I'm on to my next (hopefully last) problem. I have an Illustrator document that I saved as a SVG file.
The document has about 10 layers. What I am doing is:
1) Create the SVGDocument from the SVG file
2) Go through all of the "layers" (<g> elements with ids attrs) and make them invisible
(set attr: "i:visible" to "no" and "display" to "none").
3) For each "layer", set it visible, build the GraphicsNode root node, create a buffered
image and store that image in a hashmap.
This works fine in theory, but I am seeing that I have to either reload the SVGDocument or clone
it between each rendering iteration. If I don't, only the first "layer" is rendered and all of
the other layers' images are simply the first image.
Can anyone offer any advice on why I am having to clone the SVGDocument every time? I am guessing
it is getting cached somewhere, but I can't find it after spending a good amount of time searching.
There are two possibilities:
1) You aren't building the document to support modification of the DOM,
by calling BridgeContext.setDynamic(true), or something similar.
2) More likely, you aren't using a really, really, really current
version of Batik. I only added support for modification of the
'display' property like a week ago.
I don't think it matters much for the above case (since you
'iterate' through the layers) but you can accomplish something
similar by toggling 'visibility="visible"' and 'visibility="hidden"'.
The difference is that display removes the subtree from the rendering tree
where as visibility simply 'skips' the subtree when rendering.
Thanks in advance for your assistance,
David
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