private void setFingerBasePositions_Relative(Hand hand)
{
Leap.Finger index = hand.Fingers.Where(f => f.Type == Finger.FingerType.TYPE_INDEX).FirstOrDefault();
Leap.Finger middle = hand.Fingers.Where(f => f.Type == Finger.FingerType.TYPE_MIDDLE).FirstOrDefault();
Leap.Finger ring = hand.Fingers.Where(f => f.Type == Finger.FingerType.TYPE_RING).FirstOrDefault();
Leap.Finger pinky = hand.Fingers.Where(f => f.Type == Finger.FingerType.TYPE_PINKY).FirstOrDefault();
IndexBasePos_Relative = new Vec3(HandTransform.TransformPoint(index.Bone(Bone.BoneType.TYPE_METACARPAL).PrevJoint)) / FingerLengths[Finger.FingerType.TYPE_INDEX];
MiddleBasePos_Relative = new Vec3(HandTransform.TransformPoint(middle.Bone(Bone.BoneType.TYPE_METACARPAL).PrevJoint)) / FingerLengths[Finger.FingerType.TYPE_MIDDLE];
RingBasePos_Relative = new Vec3(HandTransform.TransformPoint(ring.Bone(Bone.BoneType.TYPE_METACARPAL).PrevJoint)) / FingerLengths[Finger.FingerType.TYPE_RING];
PinkyBasePos_Relative = new Vec3(HandTransform.TransformPoint(pinky.Bone(Bone.BoneType.TYPE_METACARPAL).PrevJoint)) / FingerLengths[Finger.FingerType.TYPE_PINKY];
}
private void setFingerJointPositions_Relative(Hand hand)
{
FingerJointPositions_Relative = new Dictionary <Finger.FingerType, Dictionary <Finger.FingerJoint, Vec3> >();
foreach (var finger in hand.Fingers)
{
FingerJointPositions_Relative.Add(finger.Type, new Dictionary <Finger.FingerJoint, Vec3>());
foreach (var jointType in (Finger.FingerJoint[])System.Enum.GetValues(typeof(Finger.FingerJoint)))
{
Vec3 relativePoint = new Vec3(HandTransform.TransformPoint(finger.JointPosition(jointType))) / FingerLengths[finger.Type];
FingerJointPositions_Relative[finger.Type].Add(jointType, relativePoint);
}
}
}
public SGInstanceSingleHand(Hand hand)
{
HandTransform = getHandTransform(hand);
IsLeft = hand.IsLeft;
IsRight = hand.IsRight;
PalmPosition = new Vec3(hand.PalmPosition); // Do not HandTransform.TransformPoint()
PalmNormal = new Vec3(hand.PalmNormal);
HandDirection = new Vec3(hand.Direction);
ArmX = new Vec3(hand.Arm.Basis.xBasis);
ArmY = new Vec3(hand.Arm.Basis.yBasis);
ArmZ = new Vec3(hand.Arm.Basis.zBasis);
// Normalize these angle values. (They all range between -PI and PI).
//Yaw = hand.PalmNormal.Yaw;
//Pitch = hand.PalmNormal.Pitch;
//Roll = hand.PalmNormal.Roll;
Yaw = hand.Direction.Yaw;
Pitch = hand.Direction.Pitch;
Roll = hand.PalmNormal.Roll;
// World coordinates
WristPos_World = new Vec3(hand.WristPosition);
ElbowPos_World = new Vec3(hand.Arm.ElbowPosition);
ForearmCenter_World = new Vec3(hand.Arm.Center);
setFingerJointPositions_World(hand);
setFingerBasePositions_World(hand);
// Relative coordinates
WristPos_Relative = new Vec3(hand.WristPosition);
ElbowPos_Relative = new Vec3(hand.Arm.ElbowPosition);
ForearmCenter_Relative = new Vec3(hand.Arm.Center);
// NOTE: FingerLengths and relative finger positions must be calculated after world coordinates.
FingerLengths = GetFingerLengths();
setFingerJointPositions_Relative(hand);
setFingerBasePositions_Relative(hand);
PalmSphereRadius = hand.SphereRadius / FingerLengths[Finger.FingerType.TYPE_MIDDLE];
PalmSphereCenter = new Vec3(HandTransform.TransformPoint(hand.SphereCenter)) / FingerLengths[Finger.FingerType.TYPE_MIDDLE];
buildFingerFeatures(hand);
}