void nui_SkeletonFrameReady(object sender, SkeletonFrameReadyEventArgs e)
{
SkeletonFrame allSkeletons = e.SkeletonFrame;
//if (allSkeletons != null)
//{
// allSkeletons is not null iff allSkeletons has a skeleton?
skeleton = (from s in allSkeletons.Skeletons
where s.TrackingState == SkeletonTrackingState.Tracked
select s).FirstOrDefault();
if (skeleton != null)
{
var leftHandY = skeleton.Joints[JointID.HandLeft].ScaleTo(640, 480, .5f, .5f).Position.Y;
var rightHandY = skeleton.Joints[JointID.HandRight].ScaleTo(640, 480, .5f, .5f).Position.Y;
if (allSkeletons.FrameNumber % 1 == 0) // how many skeletons/second should be looked at and smoothed?
{
// initial skeleton
if (smoothSkeleton == null)
{
smoothSkeleton = new SmoothSkeleton(leftHandY, rightHandY);
}
// process every new skeleton
else
{
smoothSkeleton.update(leftHandY, rightHandY);
}
//
// Console.Write(allSkeletons.FrameNumber + " " + allSkeletons.TimeStamp + " ");
// set background color
SetColor(proportion, smoothSkeleton);
}
}
//}
}
//private void SetColor(double setProportion, SkeletonData skeleton)
private void SetColor(double setProportion, SmoothSkeleton skeleton)
{
// top of screen = 0
// bottom of screen = 480
double leftHandPosition = skeleton.leftOutput;
double rightHandPosition = skeleton.rightOutput;
crosshair1.SetValue(Canvas.BottomProperty, Math.Min(0, leftHandPosition - calibrationBaseline) * crosshairRate);
crosshair2.SetValue(Canvas.BottomProperty, Math.Min(0, rightHandPosition - calibrationBaseline) * crosshairRate);
double calibratedLeftHandPosition = leftHandPosition - calibrationBaseline;
double calibratedRightHandPosition = rightHandPosition - calibrationBaseline;
if (calibratedRightHandPosition == 0)
{
calibratedRightHandPosition += .0001;
}
// TODO Don't divide by zero
double currentProportion = calibratedLeftHandPosition / calibratedRightHandPosition;
// tolerance settings
if (toleranceMode == true) // relative tolerance is enabled
{
toleranceLeftHand = Math.Abs(leftHandPosition - 480);
toleranceRightHand = Math.Abs(rightHandPosition - 480);
if (toleranceLeftHand > toleranceRightHand)
{
maxHandPosition = toleranceLeftHand;
}
else
{
maxHandPosition = toleranceRightHand;
}
tolerance = (maxHandPosition * ((maxTolerance - minTolerance) / 480) + minTolerance) / 100; // dimensions
sendMessage("tolerance: " + tolerance.ToString());
}
// display heights
textBlock1.Text = currentProportion.ToString();
// determine gradient points
double bottomTolerance = setProportion - (tolerance * 1 / 2);
double topTolerance = setProportion + (tolerance * 1 / 2);
double topYellow = setProportion + (tolerance * 1 / 2) + greenYellowFade;
double bottomYellow = setProportion - (tolerance * 1 / 2) - greenYellowFade;
double topRed = setProportion + (tolerance * 1 / 2) + greenYellowFade + yellowRedFade;
double bottomRed = setProportion - (tolerance * 1 / 2) - greenYellowFade - yellowRedFade;
// determine gradient mappings
// slope*currentProportion - y-intercept
double topToleranceYellowMap = ((1 / (greenYellowFade)) * currentProportion) - ((1 / (greenYellowFade)) * topTolerance);
double topYellowRedMap = ((1 / (yellowRedFade)) * currentProportion) - ((1 / (greenYellowFade)) * topYellow);
double bottomYellowToleranceMap = ((1 / (greenYellowFade)) * currentProportion) - ((1 / (greenYellowFade)) * bottomYellow);
double bottomRedYellowMap = ((1 / (yellowRedFade)) * currentProportion) - ((1 / (greenYellowFade)) * bottomRed);
System.Windows.Media.Color interpolatedColor = Colors.Red;
if (currentProportion >= bottomTolerance &&
currentProportion <= topTolerance) // green
{
interpolatedColor = Colors.Green;
}
// green to yellow (top)
else if (currentProportion > topTolerance &&
currentProportion <= topYellow)
{
interpolatedColor = ColorInterpolator.InterpolateBetween(Colors.Green, Colors.Yellow, topToleranceYellowMap);
}
// green to yellow (bottom)
else if (currentProportion < bottomTolerance &&
currentProportion >= bottomYellow)
{
interpolatedColor = ColorInterpolator.InterpolateBetween(Colors.Yellow, Colors.Green, bottomYellowToleranceMap);
}
// yellow to red (top)
// (.57, .59]
else if (currentProportion > topYellow &&
currentProportion <= topRed)
{
interpolatedColor = ColorInterpolator.InterpolateBetween(Colors.Yellow, Colors.Red, topYellowRedMap);
}
// yellow to red (bottom)
else if (currentProportion < bottomYellow &&
currentProportion >= bottomRed)
{
interpolatedColor = ColorInterpolator.InterpolateBetween(Colors.Red, Colors.Yellow, bottomRedYellowMap);
}
else
{
interpolatedColor = Colors.Red;
}
//interpolatedColor = ColorInterpolator.InterpolateBetween(Colors.Yellow, Colors.Green, currentProportion);
SolidColorBrush interpolatedColorBrush = new SolidColorBrush(interpolatedColor);
MainCanvas.Background = interpolatedColorBrush; // set Background to a colorString, e.g. "#113355FF"
}
