Hi Thomas,
Many thanks for such a speedy reply...!
On 28 Aug 2007 at 21:22, [EMAIL PROTECTED] wrote:
> "Matthew Darlison" <[EMAIL PROTECTED]> wrote on 08/28/2007 01:26:46 PM:
>
> > I'm working on code to generate a Java2D illustration, and output it to
> a
> > variety of formats, including SVG via the Batik SVGGraphics2D.
>
> What version of Batik are you using?
I've verified and rebuilt, and I'm using JDK 1.6 and the result of the
all-jar target on a current pull of the SVN repository.
> > I'm getting great output quality, but large files because the default
> > export renders the entire outlines of the text to paths, rather than the
> > text itself.
>
> There are a number of ways that this can happen. How are you drawing
> the text? (what method is being used on the Graphics2D?).
An example would be:
...
private Font CapFont = new Font("Sans Serif", Font.PLAIN,
this.getTextSize());
...
String slabel = "String of unpredictable length";
AttributedString sas = new AttributedString(slabel);
sas.addAttribute(TextAttribute.FONT, getCapFont());
AttributedCharacterIterator saci = sas.getIterator();
FontRenderContext sfrc = g2.getFontRenderContext();
LineBreakMeasurer slbm = new LineBreakMeasurer(saci, sfrc);
float swrappingWidth = (this.getXDimension()/4)-offsetunit;
float sx = offsetunit;
float sy = rowcentre1 -offsetunit;
while (slbm.getPosition() < saci.getEndIndex()) {
TextLayout stextLayout = slbm.nextLayout(swrappingWidth);
sy += stextLayout.getAscent();
stextLayout.draw(g2, sx, sy);
sy += stextLayout.getDescent() + stextLayout.getLeading();
sx = offsetunit;
}
which comes basically from the Sun 2D tutorial...
> > Is there any way of configuring the export to say I'm happy to take the
> > quality hit, and lose the abaility to determine exactly what font gets
> > used, if it means I get a clean SVG with text in it rather than lots of
> > very long outline geometric paths...?
>
> The default behavior is to try and render text as text. There is a
> parameter you can pass to the constructor of the SVGGraphics2D that will
> force it to always convert text to paths. I'm assuming that you haven't
> set that.
I don't think I have... this is how I instantiate it...
DOMImplementation domImpl =
GenericDOMImplementation.getDOMImplementation();
// Create an instance of org.w3c.dom.Document
String svgNS = "http://www.w3.org/2000/svg";;
Document document = domImpl.createDocument(svgNS, "svg", null);
SVGGeneratorContext ctx = SVGGeneratorContext.createDefault(document);
ctx.setEmbeddedFontsOn(false);
// Create an instance of the SVG Generator
SVGGraphics2D svgGenerator = new SVGGraphics2D(ctx, false);
// set the precision to avoid a null pointer exception in Batik 1.5
svgGenerator.getGeneratorContext().setPrecision(6);
this.paint(svgGenerator);
...
> > I'd be happy with a CSS-style definition of "sans-serif" and a point
> size...
>
> I think the current versions of the SVGGraphics2D will handle
> almost all text as text except in cases where advanced features are
> used like AttributedCharacterIterators with some of the more complex
> attributes, or all GlyphVectors.
I'm not consciously using any sophisticated attributes... and I'll be
immensely grateful if anyone can shed any llight on how to control what's
happening...
Many thanks!
Yours,
Matthew
--
"Mr. Matthew Darlison BA MA" <[EMAIL PROTECTED]>
Senior Research Fellow, Clinical & Applied Bioinformatics
UCL Centre for Health Informatics and Multiprofessional Education (CHIME)
WHO Collaborating Centre for the Community Control of Inherited Disorders
APoGI on the Web at http://www.chime.ucl.ac.uk/APoGI/
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
