Custom Buttons for 3D Interaction?

how can set button change 3d tool using javascript?

as example, have button i've made change zoom tool. i'd click on , have 3d tool change default spin tool zoom tool.

i've tried couple different things having no luck. appreciated.

thanks!
-ted

yo zero,
here's hunk of code want. should know when acrobat processes 3d annotations, there 2 javascript engines running: document-level engine (escript) , 3d-specific engine (extendscript). there reasons this. regardless, there api's present allow 2 talk each other page-annot interaction.

this hunk of code shorter (very much) left little verbose give idea of what's going on.

//==============================

//get index of page containing annot3d object (count starts @ 0)
var pageindex = this.pagenum;

//index of annot3d (count starts @ 0)
var annotindex = 0;

//get annot object
var a3d = getannots3d(pageindex)[annotindex];
console.println("a3d = " + a3d);

//now forcibly activate
a3d.activated = true;
console.println("a3d.activated = " + a3d.activated);

//get reference annot3d script context
var c3d = a3d.context3d;
console.println("c3d = " + c3d);

//set 3d tool 3d api 'runtime' object global properties , methods
c3d.runtime.setcurrenttool(c3d.runtime.tool_name_zoom);
console.println("c3d = " + c3d);

//==============================

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