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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