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Problem:

I have a an image of Enhanced Metafile Fromat Plus Extension EMF+. I need to convert this file to to a PNG image file with java.

Attempts to resolve problem in java:

  1. Apache Batik does not support EMF+ format (Batik supports WMF only format).

  2. FreeHEP does not support EMF+ too. It can convert EMF to SVG and then SVG to PNG. I hoped it can help:

    EMF2SVG.main( new String[] {inputMetaFileName,ontputSvgFileName});

    this statement must convert EMF to SVG, but gives an exception:

    java.lang.NullPointerException at org.freehep.graphicsio.exportchooser.AbstractExportFileType.getGraphics(AbstractExportFileType.java:261) at org.freehep.graphicsio.exportchooser.AbstractExportFileType.exportToFile(AbstractExportFileType.java:248) at org.freehep.graphicsio.exportchooser.AbstractExportFileType.exportToFile(AbstractExportFileType.java:282) at org.freehep.graphicsio.emf.EMFConverter.export(EMFConverter.java:81) at org.freehep.graphicsio.emf.EMF2SVG.main(EMF2SVG.java:27)

  3. I used code from here:

    try {
    // read the EMF file
    EMFRenderer emfRenderer = new EMFRenderer( new EMFInputStream(
        new ByteArrayInputStream(emfBytes)));

    EMFPanel emfPanel = new EMFPanel();
    emfPanel.setRenderer(emfRenderer);

    // prepare Graphics2D
    FileOutputStream svg = new FileOutputStream("svg.svg");
    SVGGraphics2D graphics2D = new SVGGraphics2D (svg, emfPanel);

    // export to SVG
    graphics2D.startExport();
    emfPanel.print(graphics2D);
    graphics2D.endExport();
    svg.flush();
    svg.close();
} catch (IOException e) {
    e.printStackTrace();
}

    This code creates SVG file, but it file has no image.

Vladimir Vaschenko
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Ilya Rochev
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  • Duplicate of http://stackoverflow.com/questions/14279104/convert-wmf-to-png-bmp-jpg ? – BretC Apr 10 '15 at 13:16
  • A little. EMF and WMF are various formats. WMFTranscoder does not support EMF and batik does not have EMFTranscoder. I try to find other way to convert WMF to PNG (or JPEG). I found code here [link](https://mail-archives.apache.org/mod_mbox/poi-dev/201501.mbox/%3CCAKps1KYNdVE4tuQM97Vn85KvSkUr4+8cRjE4w1s_asOHUFujqg@mail.gmail.com%3E) but it does not work. I used freeHeep EMF2SVG but it does not work too. – Ilya Rochev Apr 10 '15 at 20:44
  • Waht is your question? If it's is there a tool that does EMF conversion it's off topic and if it's can you write an EMF converter for me as an answer it's too broad. – Robert Longson Apr 11 '15 at 18:36
  • @RobertLongson i need programmatically to convert EMF image to other viewable format. java code should not call command-line tools. it can use only vector graphics libraries. I found only Batik and FreeHEP but they did not help me. Maybe somebody can use Batik or FreeHEP or other library to convert EMF. – Ilya Rochev Apr 11 '15 at 19:12

0 Answers0