I am trying to write a java program to clone a document in the current
writer to a blank new writer. I am using XMLExporter and XMLImporter to
implement this. Here is the code :

    .....
    Object Importer = (XInterface) xMSF.createInstance
         ("com.sun.star.comp.Writer.XMLImporter");
    XImporter xIm = (XImporter) UnoRuntime.queryInterface
         (XImporter.class,Importer);
    xIm.setTargetDocument(xTextDoc2);

    XDocumentHandler docHandler = (XDocumentHandler)
                     
    UnoRuntime.queryInterface(XDocumentHandler.class,Importer);

    Any arg = new Any(new Type(XDocumentHandler.class),docHandler);

    Object Exporter = (XInterface) xMSF.createInstanceWithArguments(
        "com.sun.star.comp.Writer.XMLExporter", new Object[] {arg});
    XExporter xEx = (XExporter)
        UnoRuntime.queryInterface(XExporter.class,Exporter);
    xEx.setSourceDocument(xTextDoc);

    PropertyValue[] desc =  new PropertyValue[1] ;
        desc[0] = new PropertyValue();
        desc[0].Name = "FilterName" ;
        desc[0].Value = "swriter: StarOffice XML (Writer)" ;

    XFilter filter = (XFilter)
        UnoRuntime.queryInterface(XFilter.class,Exporter);

    filter.filter(desc) ;
    ......

The code works fine with the text and table ( all string and format are
preserved ). However, all the graphics are disappeared in the new
writer. 

I had tried to compare the sxw files outputed by the original
document and the document generated after running the code. I saved the
documents to sxw files and unzip them to compare their content.xml. I
found that the drawing coordinates in the generated document are
different !!

The orginal document's content.xml :
    <draw:rect text:anchor-type="paragraph" draw:z-index="0"
    draw:style-name="gr1" draw:text-style-name="P2" svg:width="7.649cm"
    svg:height="2.999cm" svg:x="1.138cm" svg:y="0.471cm">

The generated document's content.xml
    <draw:rect text:anchor-type="paragraph" draw:z-index="0"
    draw:style-name="gr1" draw:text-style-name="P2" svg:width="7.652cm"
    svg:height="3.003cm" svg:x="-10.867cm" svg:y="-34.422cm">
 
The svg:x and svg:y are changed !!! The svg:heigth and svg:width are
also changed a little bit.