/// <summary>
/// Draws joint points. Uses different colors to indicate the quality of joint tracking
/// </summary>
/// <param name="theSkeleton">The Skeleton Info</param>
private void DrawJoints(VisualizableSkeletonInformation theSkeleton)
{
int thickness = 5;
foreach (VisualizableJoint joint in theSkeleton.JointPoints.Values)
{
Line jointLine = new Line();
jointLine.X1 = joint.JointCoordiantes.X - thickness;
jointLine.X2 = joint.JointCoordiantes.X + thickness;
jointLine.Y1 = joint.JointCoordiantes.Y;
jointLine.Y2 = joint.JointCoordiantes.Y;
jointLine.StrokeThickness = thickness * 2;
jointLine.Stroke = this.greenBrush;
if (JointTrackingState.Inferred == joint.TrackingState)
{
jointLine.Stroke = this.yellowBrush;
}
else if (JointTrackingState.NotTracked == joint.TrackingState)
{
jointLine.Stroke = this.redBrush;
}
this.SkeletonCanvas.Children.Add(jointLine);
}
}
/// <summary>
/// Draws bones
/// </summary>
/// <param name="skeleton">PreProcessed Skeleton data</param>
/// <param name="currentSkeletonBrush">Brush for the skeleton</param>
private void DrawBodySegments(VisualizableSkeletonInformation skeleton, Brush currentSkeletonBrush)
{
this.DrawBodySegment(
skeleton,
currentSkeletonBrush,
10,
JointType.ShoulderCenter,
JointType.Head);
this.DrawBodySegment(
skeleton,
currentSkeletonBrush,
5,
JointType.HipCenter,
JointType.Spine,
JointType.ShoulderCenter);
this.DrawBodySegment(
skeleton,
currentSkeletonBrush,
2,
JointType.ShoulderCenter,
JointType.ShoulderLeft,
JointType.ElbowLeft,
JointType.WristLeft,
JointType.HandLeft);
this.DrawBodySegment(
skeleton,
currentSkeletonBrush,
2,
JointType.ShoulderCenter,
JointType.ShoulderRight,
JointType.ElbowRight,
JointType.WristRight,
JointType.HandRight);
this.DrawBodySegment(
skeleton,
currentSkeletonBrush,
4,
JointType.HipCenter,
JointType.HipLeft,
JointType.KneeLeft,
JointType.AnkleLeft,
JointType.FootLeft);
this.DrawBodySegment(
skeleton,
currentSkeletonBrush,
4,
JointType.HipCenter,
JointType.HipRight,
JointType.KneeRight,
JointType.AnkleRight,
JointType.FootRight);
}
/// <summary>
/// Draw a collection of connected bones
/// </summary>
/// <param name="theSkeleton">Skeletal data</param>
/// <param name="brush">Brush color</param>
/// <param name="thickness">Thickness of the bone (we may use different thickenss for better visualization)</param>
/// <param name="ids">Joint IDs to connect</param>
private void DrawBodySegment(VisualizableSkeletonInformation theSkeleton, Brush brush, int thickness, params JointType[] ids)
{
Polyline polyline = new Polyline();
for (int i = 0; i < ids.Length; ++i)
{
polyline.Points.Add(theSkeleton.JointPoints[ids[i]].JointCoordiantes);
}
polyline.Stroke = brush;
polyline.StrokeThickness = thickness;
this.SkeletonCanvas.Children.Add(polyline);
}
/// <summary>
/// Sets the text for skeletal tracking quality (i.e. clipped bottom, etc)
/// </summary>
/// <param name="theSkeleton">Skeleton data</param>
private void UpdateAdditionalSkeletalInfoField(VisualizableSkeletonInformation theSkeleton)
{
this.SkeletonQualityText.Text += theSkeleton.SkeletonQuality;
}