Hi,
For demonstration purpose only, here is a simple class that shows how to convert a SVG document to a java.awt.image.BufferedImage (or java.awt.Image). Thierry.
/***************************************************************************** * Copyright (C) The Apache Software Foundation. All rights reserved. * * ------------------------------------------------------------------------- * * This software is published under the terms of the Apache Software License * * version 1.1, a copy of which has been included with this distribution in * * the LICENSE file. * *****************************************************************************/ import java.awt.image.BufferedImage; import java.awt.Paint; import java.io.File; import java.io.FileInputStream; import java.io.InputStream; import java.io.Reader; import java.net.URL; import java.util.Map; import org.apache.batik.transcoder.TranscoderException; import org.apache.batik.transcoder.TranscoderInput; import org.apache.batik.transcoder.TranscoderOutput; import org.apache.batik.transcoder.TranscodingHints; import org.apache.batik.transcoder.image.ImageTranscoder; import org.w3c.dom.svg.SVGDocument; /** * This class provides a simple and method based API for converting a SVG * document fragment to a <tt>BufferedImage</tt>. * * @author <a href="mailto:[EMAIL PROTECTED]";>Thierry Kormann</a> * @version $Id$ */ public class SVGRasterizer { /** * The transcoder input. */ protected TranscoderInput input; /** * The transcoder hints. */ protected TranscodingHints hints = new TranscodingHints(); /** * The image that represents the SVG document. */ protected BufferedImage img; /** * Constructs a new SVGRasterizer. * * @param uri the uri of the document to rasterize */ public SVGRasterizer(String uri) { this.input = new TranscoderInput(uri); } /** * Constructs a new SVGRasterizer. * * @param url the URL of the document to rasterize */ public SVGRasterizer(URL url) { this.input = new TranscoderInput(url.toString()); } /** * Constructs a new SVGRasterizer converter. * * @param istream the input stream that represents the SVG document to * rasterize */ public SVGRasterizer(InputStream istream) { this.input = new TranscoderInput(istream); } /** * Constructs a new SVGRasterizer converter. * * @param reader the reader that represents the SVG document to rasterize */ public SVGRasterizer(Reader reader) { this.input = new TranscoderInput(reader); } /** * Constructs a new SVGRasterizer converter. * * @param document the SVG document to rasterize */ public SVGRasterizer(SVGDocument document) { this.input = new TranscoderInput(document); } /** * Returns the image that represents the SVG document. */ public BufferedImage createBufferedImage() throws TranscoderException { Rasterizer r = new Rasterizer(); r.setTranscodingHints((Map)hints); r.transcode(input, null); return img; } /** * Sets the width of the image to rasterize. * * @param width the image width */ public void setImageWidth(float width) { hints.put(ImageTranscoder.KEY_WIDTH, new Float(width)); } /** * Sets the height of the image to rasterize. * * @param width the image height */ public void setImageHeight(float height) { hints.put(ImageTranscoder.KEY_HEIGHT, new Float(height)); } /** * Sets the preferred language to use. SVG documents can provide text in * multiple languages, this method lets you control which language to use * if possible. e.g. "en" for english or "fr" for french. * * @param language the preferred language to use */ public void setLanguages(String language) { hints.put(ImageTranscoder.KEY_LANGUAGE, language); } /** * Sets the unit conversion factor to the specified value. This method * lets you choose how units such as 'em' are converted. e.g. 0.26458 is * 96dpi (the default) or 0.3528 is 72dpi. * * @param px2mm the pixel to millimeter convertion factor. */ public void setPixelToMMFactor(float px2mm) { hints.put(ImageTranscoder.KEY_PIXEL_TO_MM, new Float(px2mm)); } /** * Sets the uri of the user stylesheet. The user stylesheet can be used to * override styles. * * @param uri the uri of the user stylesheet */ public void setUserStyleSheetURI(String uri) { hints.put(ImageTranscoder.KEY_USER_STYLESHEET_URI, uri); } /** * Sets whether or not the XML parser used to parse SVG document should be * validating or not, depending on the specified parameter. For futher * details about how media work, see the * <a href="http://www.w3.org/TR/CSS2/media.html";>Media types in the CSS2 * specification</a>. * * @param b true means the XML parser will validate its input */ public void setXMLParserValidating(boolean b) { hints.put(ImageTranscoder.KEY_XML_PARSER_VALIDATING, (b ? Boolean.TRUE : Boolean.FALSE)); } /** * Sets the media to rasterize. The medium should be separated by * comma. e.g. "screen", "print" or "screen, print" * * @param media the media to use */ public void setMedia(String media) { hints.put(ImageTranscoder.KEY_MEDIA, media); } /** * Sets the alternate stylesheet to use. For futher details, you can have * a look at the <a href="http://www.w3.org/TR/xml-stylesheet/";>Associating * Style Sheets with XML documents</a>. * * @param alternateStylesheet the alternate stylesheet to use if possible */ public void setAlternateStylesheet(String alternateStylesheet) { hints.put(ImageTranscoder.KEY_ALTERNATE_STYLESHEET, alternateStylesheet); } /** * Sets the Paint to use for the background of the image. * * @param p the paint to use for the background */ public void setBackgroundColor(Paint p) { hints.put(ImageTranscoder.KEY_BACKGROUND_COLOR, p); } /** * An image transcoder that stores the resulting image. */ protected class Rasterizer extends ImageTranscoder { public BufferedImage createImage(int w, int h) { return new BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB); } public void writeImage(BufferedImage img, TranscoderOutput output) throws TranscoderException { SVGRasterizer.this.img = img; } } // debug public static void main(String [] args) throws Exception { SVGRasterizer r = new SVGRasterizer(new File(args[0]).toURL()); r.setBackgroundColor(java.awt.Color.white); BufferedImage img = r.createBufferedImage(); javax.swing.JFrame f = new javax.swing.JFrame(); f.getContentPane().add(new javax.swing.JLabel(new javax.swing.ImageIcon(img)), java.awt.BorderLayout.CENTER); f.pack(); f.show(); } }
--------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
