public static Shape DrawPoint(this Canvas canvas, Joint joint, CoordinateMapper mapper, SpaceMode mode, Brush brush)
{
Shape shapeToReturn = null;
// 0) Check whether the joint is tracked.
if (joint.TrackingState == TrackingState.NotTracked)
{
return(null);
}
SpacePointBase spPt;
switch (mode)
{
case SpaceMode.Color:
default:
// 1a) Convert Joint positions to Color space coordinates.
ColorSpacePoint colSpaceJoint = mapper.MapCameraPointToColorSpace(joint.Position);
spPt = new SpacePointBase(colSpaceJoint);
break;
case SpaceMode.Depth:
// 1b) Convert Joint positions to Depth space coordinates.
DepthSpacePoint depSpacePoint = mapper.MapCameraPointToDepthSpace(joint.Position);
spPt = new SpacePointBase(depSpacePoint);
break;
}
#region Joint Mapping Messages
if (spPt.X == float.NegativeInfinity || spPt.Y == float.NegativeInfinity)
{
//Debug.WriteLine($"Joint Mapping Error: Joint[{joint.JointType.ToString()}] ( {spPt.X} , {spPt.Y} )");
}
else if ((spPt.X < 0 || spPt.Y < 0 || spPt.X > FrameDimensions[mode].Item1 || spPt.Y > FrameDimensions[mode].Item2))
{
//Debug.WriteLine($"Joint Mapping Overflow: Joint[{joint.JointType.ToString()}] ( {spPt.X} , {spPt.Y} )");
}
#endregion
//-inf meaning Joint is not detected and no corresponding mapped space point
if (spPt.IsValid)
{
// 2) Scale the mapped coordinates to window dimensions.
spPt = spPt.ScaleTo(canvas.ActualWidth, canvas.ActualHeight, mode);
//if (joint.JointType == 0) Debug.WriteLine($"Head Position in Color Space = {spPt.X}, {spPt.Y}");
// 3) Draw the point on Canvas
shapeToReturn = spPt.DrawPoint(canvas, brush);
}
return(shapeToReturn);
}
