Hello - I have a couple of animations created inside U3D. For every
step I have created bookmarks. Now I am looking at linking the
Bookmark to the animation. I have read about the undocumented AN key
and have created the dictionary. But its not working as I expected it
to. The next step I am struggling with is setting the Camera Views and
3D Model object visibility. Help!
Assuming that you are talking about PDF bookmarks/outlines, you can
create a GoTo3DView action as follows (in C#):
Obj action = doc.CreateIndirectDict();
action.PutString("TA", annot_dict); // The target annotation for which
to set the view.
// Set The view to use. It may be one of the following types:
// - A 3D view dictionary (see 13.6.4, “3D Views”).
// - An integer specifying an index into the VA array in the 3D
stream (see Table 300).
// - A text string matching the IN entry in one of the views in the
VA array (see Table 304).
// - A name that indicates the first (F), last (L), next (N),
previous (P), or default (D)
// entries in the VA array;
Obj view = doc.CreateIndirectDict();
action.PutString("V", view); // The view to use.
// Hook the action to the bookmark...
Bookmark mybookmark = Bookmark.Create(doc, "MyBookmark");
A helpful tool that can be used to inspect contents of existing PDF
files is CosEdit (http://www.pdftron.com/pdfcosedit/index.html). With
CosEdit you can open working PDF files with 3D bookmarks (or other
types of content) and see how the data is organized.