I think what a lot of us do is build our own setup so we can access things
like transform. Here is a snippet from my code, which won't compile out of
context, but should help you. Note that modifying vpTrans will modify the
view.
locale = new Locale(this);
// Create a ViewPlatform, TransformGroupNode, Transform3D for position
vp = new ViewPlatform();
// Set up the properties of the ViewPlatform
// Will be relevant when becomes part of live scene graph
vp.setCapability(ViewPlatform.ALLOW_POLICY_READ);
vp.setCapability(ViewPlatform.ALLOW_POLICY_WRITE);
vp.setCapability(ViewPlatform.ALLOW_LOCAL_TO_VWORLD_READ);
vp.setCapability(ViewPlatform.ENABLE_COLLISION_REPORTING);
Transform3D t = new Transform3D(); // at the origin of the locale
vpTrans = new TransformGroup(t);
// Set capabilities to allow for changes when live.
vpTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
vpTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
vpTrans.setCapability(TransformGroup.ALLOW_CHILDREN_READ);
vpTrans.setCapability(TransformGroup.ALLOW_CHILDREN_EXTEND);
vpTrans.addChild(vp);
// Create a View object to attach to the ViewPlatform
// Use default values for all the complicated head movement stuff
view = new View();
view.addCanvas3D(c);
PhysicalBody body = new PhysicalBody();
view.setPhysicalBody(body);
PhysicalEnvironment env = new PhysicalEnvironment();
view.setPhysicalEnvironment(env);
view.attachViewPlatform(vp);
view.setFieldOfView(view.getFieldOfView()*1.5);
view.setWindowResizePolicy(view.PHYSICAL_WORLD);
// Use the default PhysicalEnbironment to create Sound Device
file://javaSoundMixer = new JavaSoundMixer(env);
file://javaSoundMixer.initialize();
// Create a BranchGroup to allow attachment of all this stuff to
// the Locale object
vpRoot = new BranchGroup();
vpRoot.setCapability(Group.ALLOW_CHILDREN_EXTEND);
vpRoot.addChild(vpTrans);
locale.addBranchGraph(vpRoot);
----- Original Message -----
From: Jonathan Albert C Vallar <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, February 28, 2001 6:05 AM
Subject: [JAVA3D] Help!
I've been trying to mail the interest group but this mail does not reach the
group because no mail went back to my account.Anyway, I hope this reaches
the mailing list. :)
Can I ask if there is a possibility that I can get the parent of the
viewplatform and modify the rotation component of the set transform3d.I want
to simulate a set of buttons that
show a rotation along the x and y axes by modifying the transformgroup above
the viewplatform.
My code is:
m2=new Matrix3d();
tempviewplat=active_site.getViewPlatform();
tempTG=(TransformGroup)tempviewplat.getParent();
tempTG.getTransform(tempT3D);
tempT3D.getRotationScale(m1);
m2.rotX(rot_degree);
m1.mul(m2);
tempT3D.setRotationScale(m1);
tempTG.setTransform(tempT3D);
Upon running and pressing the button,i get a:
RestrictedAccessException:Cannot get the parent of a live or a compiled
node.
Thanks!
__________________________________
www.edsamail.com
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