Custom Buttons for 3D Interaction?

Question

How can I set a button to change the 3D tool using javascript?
As example, I have a button I've made to change to the zoom tool. I'd like to click on it and have the 3d tool change from the default spin tool to the zoom tool.
I've tried a couple different things but am having no luck. Any help would be greatly appreciated.
Thanks!
-Ted

Answer 1

Yo Zero,
Here's a hunk of code to do what you want. You should know that when Acrobat processes 3D annotations, there are TWO javascript engines running: a document-level engine (Escript) and a 3D-specific engine (Extendscript). There are reasons for this. Regardless, there are API's present to allow the two to talk to each other for page-annot interaction.
This hunk of code could be shorter (very much) but I left it a little verbose to give you an idea of what's going on.
//==============================
//get index of page containing the Annot3D object (count starts at 0)
var pageIndex = this.pageNum;
//index of the Annot3D (count starts at 0)
var annotIndex = 0;
//get the annot object
var a3d = getAnnots3D(pageIndex)[annotIndex];
console.println("a3d = " + a3d);
//now forcibly activate it
a3d.activated = true;
console.println("a3d.activated = " + a3d.activated);
//get a reference to the Annot3D script context
var c3d = a3d.context3D;
console.println("c3d = " + c3d);
//set 3D tool with the 3D API 'runtime' object global properties and methods
c3d.runtime.setCurrentTool(c3d.runtime.TOOL_NAME_ZOOM);
console.println("c3d = " + c3d);
//==============================