public override bool MatchesCriterion(SkeletonStamp skeletonStamp)
{
double alignmentValue = 0.0;
Joint[] trackedJoints = new Joint[Joints.Length];
Joint centerJoint;
int i = 0;
// get the joints to be aligned
foreach (XmlJointType type in Joints)
{
trackedJoints[i++] = skeletonStamp.GetTrackedSkeleton().Joints[type.GetJointType()];
}
switch (Alignment)
{
case Alignment.Point:
centerJoint = skeletonStamp.GetTrackedSkeleton().Joints[CenterJoint.GetJointType()];
alignmentValue = JointAnalyzer.AreJointsAligned(centerJoint, trackedJoints);
break;
case Alignment.Horizontal:
alignmentValue = JointAnalyzer.AlignedHorizontally(trackedJoints[0], trackedJoints[1]);
break;
case Alignment.Vertical:
alignmentValue = JointAnalyzer.AlignedVertically(trackedJoints[0], trackedJoints[1]);
break;
}
return(alignmentValue > MaximumAcceptedRange);
}
/// <summary>
/// Finds the angle between the provided joints.
/// </summary>
/// <param name="skeletonStamp"></param>
/// <param name="vertexJoint"></param>
/// <param name="adjacentJoints"></param>
/// <returns></returns>
private int FindAngle(SkeletonStamp skeletonStamp, out Joint vertexJoint, out Joint[] adjacentJoints)
{
// Test bone orientations
Skeleton skeleton = skeletonStamp.GetTrackedSkeleton();
BoneOrientation bo = skeleton.BoneOrientations[Vertex.GetJointType()];
// get the vertex and other joints off the skeleton stamp
vertexJoint = skeletonStamp.GetTrackedSkeleton().Joints[Vertex.GetJointType()];
adjacentJoints = new Joint[2];
adjacentJoints[0] = skeletonStamp.GetTrackedSkeleton().Joints[OtherJoints[0].GetJointType()];
adjacentJoints[1] = skeletonStamp.GetTrackedSkeleton().Joints[OtherJoints[1].GetJointType()];
int convertedDotAngle = JointAnalyzer.FindAngle(vertexJoint, adjacentJoints);
return(convertedDotAngle);
}
/// <summary>
/// Checks the alignment of the joints. returns a value for each joint measured
/// </summary>
/// <param name="skeletonStamp"></param>
/// <returns></returns>
private double[] FindAlignment(SkeletonStamp skeletonStamp)
{
// initialize the values of the array to -2 since the value we're returning is between -1 and +1
double[] alignmentValue = Enumerable.Repeat(-999.0, 20).ToArray();
Joint[] trackedJoints = new Joint[Joints.Length];
Joint centerJoint;
int i = 0;
// get the joints to be aligned
foreach (XmlJointType type in Joints)
{
trackedJoints[i++] = skeletonStamp.GetTrackedSkeleton().Joints[type.GetJointType()];
}
double tempValue;
switch (Alignment)
{
case Alignment.Point:
centerJoint = skeletonStamp.GetTrackedSkeleton().Joints[CenterJoint.GetJointType()];
tempValue = 1 - JointAnalyzer.AreJointsAligned(centerJoint, trackedJoints);
alignmentValue[(int)CenterJoint.GetJointType()] = tempValue;
alignmentValue[(int)trackedJoints[0].JointType] = tempValue;
alignmentValue[(int)trackedJoints[1].JointType] = tempValue;
break;
case Alignment.Horizontal:
tempValue = 1 - JointAnalyzer.AlignedHorizontally(trackedJoints[0], trackedJoints[1]);
alignmentValue[(int)trackedJoints[0].JointType] = tempValue;
alignmentValue[(int)trackedJoints[1].JointType] = tempValue;
break;
case Alignment.Vertical:
tempValue = 1 - JointAnalyzer.AlignedVertically(trackedJoints[0], trackedJoints[1]);
alignmentValue[(int)trackedJoints[0].JointType] = tempValue;
alignmentValue[(int)trackedJoints[1].JointType] = tempValue;
break;
}
return(alignmentValue);
}