Have a look at the Add3D plugin in the toolbox.

Paulo

----- Original Message ----- 
From: <[EMAIL PROTECTED]>
To: <itext-questions@lists.sourceforge.net>
Sent: Tuesday, June 12, 2007 8:02 AM
Subject: [iText-questions] 3D PDF and JavaScript


> Hello,
>
> I have a strange behaviour with iText.
>
> I've added a 3d modell programmatically with iText (see code below).
> When I add the JavaScript with Acrobat, I get the JavaScript message "host
> is undefined".
>
> If I add the 3D modell and script manually, it works fine ...
>
> An example pdf can be found on
> http://www.bct-technology.com/fileadmin/pdf/bct_report/example.pdf (1.9
> MB)
> The upper model was added with iText, the lower manually.
> If you select a part, the partname should be shown in the textfield.
>
> Any clue? Thanks in advance!
>
> Toni
>
>
> (PS: how to add the JavaScript pro)
>
>
>
>
> Here is the java code of iText:
> (Based on the code of Paulo)
>
> public class PDF3DObject extends PdfAnnotation
> {
>    public static final String PDF_NAME_3D = "3D";
>    public static final String PDF_NAME_3DD = "3DD";
>    public static final String PDF_NAME_3DV = "3DV";
>    public static final String PDF_NAME_3DVIEW = "3DView";
>    public static final String PDF_NAME_C2W = "C2W";  // Transformation
> matrix (optional)
>    public static final String PDF_NAME_IN = "IN"; // internal name of the
> view (optional)
>    public static final String PDF_NAME_MS = "MS"; //
>    public static final String PDF_NAME_XN = "XN"; // The external name of
> the view (required)
>
>    public static final String PDF_NAME_U3D = "U3D";
>    public static final String PDF_NAME_U3DPATH = "U3DPath";
>    public static final String PDF_NAME_ONINSTANTIATE = "OnInstantiate";
>
>
>    public PDF3DObject(PdfStamper stamper, File u3dFile, Rectangle
> rectangle, int page)
>    {
>        super(stamper.getWriter(), rectangle);
>
>        try
>        {
>            PdfWriter writer = stamper.getWriter();
>
>            PdfIndirectReference streamRef;
>            PdfIndirectObject objRef;
>
>            PdfContentByte cb = stamper.getOverContent(page);
>
>            // Create stream to carry attachment
>            FileInputStream fistrm = new FileInputStream(u3dFile);
>            PdfStream stream = new PdfStream(fistrm, writer);
>
>            // Mandatory keys
>            stream.put(PdfName.TYPE, new PdfName(PDF_NAME_3D));
>            stream.put(PdfName.SUBTYPE, new PdfName(PDF_NAME_U3D));
>            stream.flateCompress();
>
>            // Write stream contents, get reference to stream object,
> write actual stream length
>            streamRef = writer.addToBody(stream,
> false).getIndirectReference();
>            stream.writeLength();
>
>
> /* JavaScript Stream
>            FileInputStream jsFiStream = new FileInputStream(new
> File("C:\\TEMP\\_techdoc\\SelectPart1.js"));
>            PdfStream jsStream = new PdfStream(jsFiStream, writer);
>            jsStream.flateCompress();
>            jsStream.writeLength();
> */
>
>
>            // Create 3D view dictionary
>            // PDF documentation states that this can be left out, but
> without normally we will just get a blank
>            //   3D image because of wrong coordinate space
> transformations, etc.
>            // Instead of providing camera-to-world transformation here,
> we could also reference view in U3D file itself
>            //   (would be U3DPath key instead of C2W key, U3D value
> instead of M value for MS key), but i haven't tried
>            //   up to now
>            // We could also provide an activation dictionary (defining
> activation behavior), and field-of-view for
>            //   P entry if needed
>            PdfDictionary dict = new PdfDictionary(new
> PdfName(PDF_NAME_3DVIEW));
>
>            dict.put(new PdfName(PDF_NAME_XN), new
> PdfString("DefaultView"));
>            dict.put(new PdfName(PDF_NAME_IN), new PdfString("Unnamed"));
>
>            dict.put(new PdfName(PDF3DObject.PDF_NAME_MS), new
> PdfName(PDF3DObject.PDF_NAME_U3D));
>
>            // NOTE: The initial release of Acrobat 7.0 does not correctly
> display the default view in the U3D data.
>            //       This behavior is expected to be corrected in future
> releases and hence.
>            dict.put(new PdfName(PDF3DObject.PDF_NAME_U3DPATH), new
> PdfString("DefaultView"));
>
>            // Manual camera
>            // States that we have to provide camera-to-world coordinate
> transformation
>            // dict.put(new PdfName(PDF_NAME_MS), PdfName.M);
>            // dict.put(new PdfName(PDF_NAME_C2W), new PdfArray(new
> float[] {1, 0, 0, 0, 0, -1, 0, 1, 0, 3, -235, 28F}));
>
>            // Camera distance along z-axis
>            // dict.put(PdfName.CO, new PdfNumber(235));
>
> //            dict.put(new PdfName(PDF_NAME_ONINSTANTIATE), jsStream);
>
>            // Write view dictionary, get reference
>            objRef = writer.addToBody(dict, false);
>
>            //
>            // Create appearance
>            PdfAppearance ap = cb.createAppearance(rectangle.getWidth(),
> rectangle.getHeight());
>            ap.setBoundingBox(rectangle);
>
>            put(PdfName.CONTENTS, new PdfString("3D Model"));
>
>            // Mandatory keys
>            put(PdfName.TYPE, PdfName.ANNOT);
>            put(PdfName.SUBTYPE, new PdfName(PDF_NAME_3D));
>
>            // Reference to stream object
>            put(new PdfName(PDF_NAME_3DD), streamRef);
>
>            // Reference to view dictionary object
>            put(new PdfName(PDF_NAME_3DV), objRef.getIndirectReference());
>
>            // Assign appearance and page
>            setAppearance(PdfAnnotation.APPEARANCE_NORMAL, ap);
>
>        }
>        catch (IOException ex)
>        {
>            Debug.error("Internal Error: ", ex);
>        }
>    }
> }
>
>
>
>
>
> And the Java Script
>
>
>
> var mouseDragged = true;
> var selectedMesh = null;
>
> //------------------------------------------------------------------------------
> // function used by the Mouse Event Handler
> //------------------------------------------------------------------------------
>
> myMouseHandlingFunction = function( event )
> {
>  if( event.isMouseDown )
>    mouseDragged = false;
>
>  //-----------------------------------------------
>  // mouse UP
>  //-----------------------------------------------
>  if ( event.isMouseUp )
>  {
>    var clickedMesh = null;
>    if(event.hits.length > 0)
>    {
>      clickedMesh = event.hits[0].target;
>    }
>
>    if(selectedMesh == clickedMesh || mouseDragged)
>      return;
>
>    if (selectedMesh != null)
>      if(clickedMesh != null)
>      {
>        host.getField("TeilMouseDown").value = clickedMesh.name;
>      }
>      else
>      {
>        host.getField("TeilMouseDown").value = "";
>      }
>
>    selectedMesh = clickedMesh.name;
>  }
>
>  if ( event.isMouseMove )
>    mouseDragged = true;
> }
>
> var mouseEventHandler = new MouseEventHandler();
> mouseEventHandler.onMouseDown = true;
> mouseEventHandler.onMouseMove = true;
> mouseEventHandler.onMouseUp = true;
> mouseEventHandler.onEvent = myMouseHandlingFunction;
> runtime.addEventHandler( mouseEventHandler );


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