enum JointId
Here’s where hands get crazy! Technical terms, and watch out for the thumbs!
Enum Values
| KnuckleMajor | Joint 1. These are the knuckles at the top of the palm! For the thumb, Root and KnuckleMajor have the same value. | 
| KnuckleMid | Joint 2. These are the knuckles in the middle of the finger! First joints on the fingers themselves. | 
| KnuckleMinor | Joint 3. The joints right below the fingertip! | 
| Root | Joint 0. This is at the base of the hand, right above the wrist. For the thumb, Root and KnuckleMajor have the same value. | 
| Tip | Joint 4. The end/tip of each finger! | 
Examples
Here’s a small example of checking to see if a finger joint is inside a box, and drawing an axis gizmo when it is!
// A volume for checking inside of! 10cm on each side, at the origin
Bounds testArea = new Bounds(Vec3.One * 0.1f);
// This is a decent way to show we're working with both hands
for (int h = 0; h < (int)Handed.Max; h++)
{
	// Get the pose for the index fingertip
	Hand hand      = Input.Hand((Handed)h);
	Pose fingertip = hand[FingerId.Index, JointId.Tip].Pose;
	// Skip this hand if it's not tracked
	if (!hand.IsTracked) continue;
	// Draw the fingertip pose axis if it's inside the volume
	if (testArea.Contains(fingertip.position))
		Lines.AddAxis(fingertip);
}
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