Have a look at the Add3D plugin in the toolbox.
Paulo
----- Original Message -----
From: <AHeckmeier@(protected)>
To: <itext-questions@(protected)>
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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