Code: Select all
/**
* Save chart as SVG file.
* Required libs: Apache Batik (batik-svggen.jar, batik-dom.jar, dom.jar).
*
* @param chart JFreeChart to save.
* @param fileName Name of file to save chart in.
* @param width Width of chart graphic.
* @param height Height of chart graphic.
* @return Final file name used.
* @throws IOException if failed.
*/
static public final String saveChartToSVG(final JFreeChart chart, String fileName, final int width, final int height) throws IOException {
String result = null;
if (chart != null) {
if (fileName == null) {
final String chartTitle = chart.getTitle().getText();
if (chartTitle != null) {
fileName = chartTitle;
} else {
fileName = "chart";
}
}
result = fileName + ".svg";
final DOMImplementation domImpl = GenericDOMImplementation.getDOMImplementation();
final Document document = domImpl.createDocument(null, "svg", null);
final SVGGraphics2D svgGenerator = new SVGGraphics2D(document);
// svgGenerator.getGeneratorContext().setEmbeddedFontsOn(true); //embed fonts
//set anti-aliasing bug fix for SVG generator:
//setting rendering hints of svgGenerator doesn't help as it seems to use the rendering hints from the chart
final boolean antiAlias = isAntiAliasOn(chart);
final RenderingHints rh = chart.getRenderingHints();
if (antiAlias) {
rh.put(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
rh.put(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_OFF); //fix
} else {
rh.put(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_OFF);
rh.put(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON); //fix
}
// svgGenerator.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
// svgGenerator.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_OFF);
// svgGenerator.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
// svgGenerator.setRenderingHint(RenderingHints.KEY_COLOR_RENDERING, RenderingHints.VALUE_COLOR_RENDER_QUALITY);
// svgGenerator.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
// svgGenerator.setRenderingHint(RenderingHints.KEY_ALPHA_INTERPOLATION, RenderingHints.VALUE_ALPHA_INTERPOLATION_QUALITY);
chart.draw(svgGenerator, new Rectangle2D.Double(0, 0, width, height), new ChartRenderingInfo());
//undo anti-aliasing bugfix settings for chart to use correct settings:
if (antiAlias) {
rh.put(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
rh.put(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
} else {
rh.put(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_OFF);
rh.put(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_OFF);
}
final boolean useCSS = true;
Writer out = null;
try {
out = new OutputStreamWriter(new BufferedOutputStream(new FileOutputStream(new File(result), false)),"iso-8859-1"); //UTF-8
svgGenerator.stream(out, useCSS);
} finally {
svgGenerator.dispose();
IOUtils.close(out);
}
}//else: input unavailable
return result;
}//saveChartToSVG()Code: Select all
import org.apache.xmlgraphics.java2d.ps.EPSDocumentGraphics2D;
import org.freehep.graphicsio.emf.EMFGraphics2D;
public void saveAsEPS(JFreeChart chart,File outfile) throws Exception{
OutputStream out = new java.io.FileOutputStream(outfile);
EPSDocumentGraphics2D g2d = new EPSDocumentGraphics2D(false);
g2d.setGraphicContext(new org.apache.xmlgraphics.java2d.GraphicContext());
int width = 600;
int height = 400;
g2d.setupDocument(out,width, height); //400pt x 200pt
chart.draw(g2d,new Rectangle(width,height));
g2d.finish();
out.flush();
out.close();
}
public void saveAsEMF(JFreeChart chart,File outfile) throws Exception{
OutputStream out = new java.io.FileOutputStream(outfile);
int width = 600;
int height = 400;
EMFGraphics2D g2d = new EMFGraphics2D(out,new Dimension(width,height));
g2d.startExport();
chart.draw((Graphics2D)g2d.create(),new Rectangle(width,height));
g2d.endExport();
g2d.closeStream();
}
