import de.erichseifert.vectorgraphics2d.PDFGraphics2D; //导入依赖的package包/类
/**
 * Save the chart as pdf.
 *
 * @param chart
 *            chart that should be saved.
 * @param fileName
 *            file name under which the chart should be saved.
 * @throws IOException
 *             i/o exception
 */
public static void saveGraph(final Chart chart, final String fileName)
		throws IOException {
	final int width = (int) PageSize.A4.getWidth();
	final int height = (int) PageSize.A4.getHeight();

	VectorGraphics2D g = new PDFGraphics2D(0.0, 0.0, width, height);

	chart.paint(g, width, height);

	// Write the vector graphic output to a file
	FileOutputStream file = new FileOutputStream(fileName + ".pdf");

	try {
		file.write(g.getBytes());
	} finally {
		file.close();
	}
}
 

import de.erichseifert.vectorgraphics2d.PDFGraphics2D; //导入依赖的package包/类
private void exportAsPDF(File file, MainWindow mainWindow, HiC hic, final JPanel hiCPanel,
                         final int w, final int h) {
    try {
        PDFGraphics2D g = new PDFGraphics2D(0, 0, w, h);
        plotDataOnGraphics(g, mainWindow, w, h, hic, hiCPanel);
        writeGraphicsToFile(g, file);
    } catch (Exception e) {
        System.err.println("Export PDF failed " + e);
    }
}
 

import de.erichseifert.vectorgraphics2d.PDFGraphics2D; //导入依赖的package包/类
String toPdf(double width, double height, double margin) {
    Graphics2D g2 = new PDFGraphics2D(0, 0,
                                      margin + width + margin,
                                      margin + height + margin);
    draw(AWTDrawVisitor.forVectorGraphics(g2),
         new Rectangle2D.Double(margin, margin, width, height));
    g2.dispose();
    return g2.toString();
}
 

import de.erichseifert.vectorgraphics2d.PDFGraphics2D; //导入依赖的package包/类
@Override
public void serialize(File f, ProcessModel m) throws Exception {
    Graphics2D g2;

    // Create new ProcessEditor
    ProcessEditor editor = new ProcessEditor(m);
    editor.setEditable(false);
    // Set preferred size
    editor.setSize(editor.getPreferredSize().width,
            editor.getPreferredSize().height);

    /** SOURCE CODE FOR VECTORGRAPHICS2D FOLLOWS */
    PDFGraphics2D pdfOutput = new PDFGraphics2D(
            editor.getBounds().x,
            editor.getBounds().y,
            editor.getBounds().width,
            editor.getBounds().height);

    pdfOutput.setFontRendering(VectorGraphics2D.FontRendering.VECTORS);

    editor.paint(pdfOutput);

    byte[] output = pdfOutput.getBytes();

    FileOutputStream fo = new FileOutputStream(f);
    fo.write(output);
    fo.close();

    /** SOURCE CODE FOR ITEXT FOLLOWS
    Document document = new Document(new Rectangle(
            editor.getBounds().x,
            editor.getBounds().y,
            editor.getBounds().width,
            editor.getBounds().height
            ));
    PdfWriter writer;
    writer = PdfWriter.getInstance(document, new FileOutputStream(f));

    document.open();
    PdfContentByte cb = writer.getDirectContent();
    PdfTemplate tp = cb.createTemplate(editor.getSize().width, editor.getSize().height);

    g2 = tp.createGraphicsShapes(editor.getSize().width, editor.getSize().height);

    editor.paintComponent(g2);
    g2.dispose();

    cb.addTemplate(tp, 0, 0);

    document.close();
   */

}