/// <summary>
/// Compares height between two joints
/// </summary>
/// <param name="kb">Kinect body</param>
/// <param name="first">First kinect joint</param>
/// <param name="second">Second Kinect joint</param>
/// <returns>true if both joints are at least inferred and first joint Y > second joint Y, false otherwise (also returns false if one of those joints is not tracked)</returns>
public static bool CompareHeight(this KinectBody kb, JointType first, JointType second)
{
Joint j1 = kb.Joints[first];
Joint j2 = kb.Joints[second];
return(j1.IsAtLeastInferred() && j2.IsAtLeastInferred() && j1.Position.Y > j2.Position.Y);
}
public void TestUploadEmpty()
{
using (BodyJointOrientationBuffer buffer = new BodyJointOrientationBuffer(device))
{
KinectBody[] empty = new KinectBody[0];
buffer.Copy(device.ImmediateContext, empty);
}
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="body">Kinect body</param>
/// <param name="handType">Hand type</param>
/// <param name="previousHandState">Previous hand state</param>
public KinectHandStateEventArgs(KinectBody body, HandType handType, HandState previousHandState)
{
if (body == null)
throw new ArgumentNullException("body");
this.body = body;
this.handType = handType;
this.previousHandState = previousHandState;
}
public static KinectJointTable GetJointTable(this KinectBody body)
{
Dictionary <JointType, Vector3> joints = new Dictionary <JointType, Vector3>();
foreach (var kvp in body.Joints)
{
CameraSpacePoint csp = kvp.Value.Position;
joints.Add(kvp.Key, new Vector3(csp.X, csp.Y, csp.Z));
}
return(new KinectJointTable(body.TrackingId, joints));
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="body">Kinect body</param>
/// <param name="handType">Hand type</param>
/// <param name="previousHandState">Previous hand state</param>
public KinectHandStateEventArgs(KinectBody body, HandType handType, HandState previousHandState)
{
if (body == null)
{
throw new ArgumentNullException("body");
}
this.body = body;
this.handType = handType;
this.previousHandState = previousHandState;
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="body">Kinect body</param>
/// <param name="coordinateMapper">Coordinate mapper</param>
public ColorSpaceKinectJoints(KinectBody body, CoordinateMapper coordinateMapper)
{
if (body == null)
throw new ArgumentNullException("body");
if (coordinateMapper == null)
throw new ArgumentNullException("coordinateMapper");
this.jointPositions = new Dictionary<JointType,ColorSpacePoint>();
foreach (Joint joint in body.Joints.Values)
{
this.jointPositions.Add(joint.JointType, coordinateMapper.MapCameraPointToColorSpace(joint.Position));
}
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="body">Kinect body</param>
/// <param name="coordinateMapper">Coordinate mapper</param>
public ColorSpaceKinectJoints(KinectBody body, CoordinateMapper coordinateMapper)
{
if (body == null)
{
throw new ArgumentNullException("body");
}
if (coordinateMapper == null)
{
throw new ArgumentNullException("coordinateMapper");
}
this.jointPositions = new Dictionary <JointType, ColorSpacePoint>();
foreach (Joint joint in body.Joints.Values)
{
this.jointPositions.Add(joint.JointType, coordinateMapper.MapCameraPointToColorSpace(joint.Position));
}
}
/// <summary>
/// Checks if both hands are below hips
/// </summary>
/// <param name="kb">kinect body</param>
/// <returns>True if both hands are below hips, false otherwise</returns>
public static bool BothHandsBelowHip(this KinectBody kb)
{
return(kb.CompareHeight(JointType.HipRight, JointType.HandRight) && kb.CompareHeight(JointType.HipLeft, JointType.HandLeft));
}
/// <summary>
/// Checks if both left and right hand are raised (we consider raised as "above head")
/// </summary>
/// <param name="kb">Kinect body to check</param>
/// <returns>true if raised, false otherwise</returns>
public static bool BothHandsRaised(this KinectBody kb)
{
return(kb.LeftHandRaised() && kb.RightHandRaised());
}
/// <summary>
/// Checks if rights hand is raised (we consider raised as "above head")
/// </summary>
/// <param name="kb">Kinect body to check</param>
/// <returns>true if raised, false otherwise</returns>
public static bool RightHandRaised(this KinectBody kb)
{
return(kb.CompareHeight(JointType.HandRight, JointType.Head));
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="body">Relevant Kinect body</param>
public KinectBodyEventArgs(KinectBody body)
{
this.body = body;
}
/// <summary>
/// Checks if a body tracking Id is contained into our list
/// </summary>
/// <param name="kb">Kinect body to check</param>
/// <param name="bodyList">Body list to check</param>
/// <returns>true is we found this body Id, false otherwise</returns>
public static bool ContainsId(this KinectBody kb, IEnumerable <KinectBody> bodyList)
{
return(kb.FindById(bodyList) != null);
}
/// <summary>
/// Finds the relevant body from a list of bodies. Can be used to match a body id from a different frame
/// </summary>
/// <param name="kb">Kinect body to check</param>
/// <param name="bodyList">List of body</param>
/// <returns>Matched Kinect body (using id) if found, null otherwise</returns>
public static KinectBody FindById(this KinectBody kb, IEnumerable <KinectBody> bodyList)
{
return(bodyList.Where(body => body.TrackingId == kb.TrackingId).FirstOrDefault());
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="body">Relevant Kinect body</param>
public KinectBodyEventArgs(KinectBody body)
{
this.body = body;
}
