// draws a body slice line
private void DrawBodySlice(BodySliceData bodySlice)
{
if (bodySlice.isSliceValid && bodySlice.startDepthPoint != Vector2.zero && bodySlice.endDepthPoint != Vector2.zero)
{
float rectX = foregroundImgRect.xMin;
float rectY = foregroundImgRect.yMin;
float scaleX = foregroundImgRect.width / depthImageWidth;
float scaleY = foregroundImgRect.height / depthImageHeight;
float x1 = rectX + (depthScale.x >= 0f ? bodySlice.startDepthPoint.x : depthImageWidth - bodySlice.startDepthPoint.x) * scaleX;
float y1 = rectY + (depthScale.y >= 0f ? bodySlice.startDepthPoint.y : depthImageHeight - bodySlice.startDepthPoint.y) * scaleY;
float x2 = rectX + (depthScale.x >= 0f ? bodySlice.endDepthPoint.x : depthImageWidth - bodySlice.endDepthPoint.x) * scaleX;
float y2 = rectY + (depthScale.y >= 0f ? bodySlice.endDepthPoint.y : depthImageHeight - bodySlice.endDepthPoint.y) * scaleY;
KinectInterop.DrawLine((int)x1, (int)y1, (int)x2, (int)y2, 2f, Color.red);
}
}
// creates body slice data for the given body slice
private BodySliceData GetBodySliceParams(BodySlice sliceType, Vector2 middlePoint, bool bSliceOnX, bool bSliceOnY, int maxDepthLength)
{
BodySliceData sliceData = new BodySliceData();
sliceData.sliceType = sliceType;
sliceData.isSliceValid = false;
sliceData.depthPointsLength = 0;
if (!kinectManager || middlePoint == Vector2.zero)
{
return(sliceData);
}
if (!bSliceOnX && !bSliceOnY)
{
return(sliceData);
}
middlePoint.x = Mathf.FloorToInt(middlePoint.x + 0.5f);
middlePoint.y = Mathf.FloorToInt(middlePoint.y + 0.5f);
int depthWidth = sensorData.depthImageWidth;
int depthHeight = sensorData.depthImageHeight;
int indexMid = (int)middlePoint.y * depthWidth + (int)middlePoint.x;
byte userIndex = sensorData.bodyIndexImage[indexMid];
if (userIndex != userBodyIndex)
{
return(sliceData);
}
sliceData.startDepthPoint = middlePoint;
sliceData.endDepthPoint = middlePoint;
int indexDiff1 = 0;
int indexDiff2 = 0;
if (bSliceOnX)
{
// min-max
int minIndex = (int)middlePoint.y * depthWidth;
int maxIndex = (int)(middlePoint.y + 1) * depthWidth;
// horizontal left
int stepIndex = -1;
indexDiff1 = TrackSliceInDirection(indexMid, stepIndex, minIndex, maxIndex, userIndex);
// horizontal right
stepIndex = 1;
indexDiff2 = TrackSliceInDirection(indexMid, stepIndex, minIndex, maxIndex, userIndex);
}
else if (bSliceOnY)
{
// min-max
int minIndex = 0;
int maxIndex = depthHeight * depthWidth;
// vertical up
int stepIndex = -depthWidth;
indexDiff1 = TrackSliceInDirection(indexMid, stepIndex, minIndex, maxIndex, userIndex);
// vertical down
stepIndex = depthWidth;
indexDiff2 = TrackSliceInDirection(indexMid, stepIndex, minIndex, maxIndex, userIndex);
}
// calculate depth length
sliceData.depthPointsLength = indexDiff1 + indexDiff2 + 1;
// check for max length (used by upper legs)
if (maxDepthLength > 0 && sliceData.depthPointsLength > maxDepthLength)
{
if (indexDiff1 > indexDiff2)
{
indexDiff1 = indexDiff2;
}
else
{
indexDiff2 = indexDiff1;
}
sliceData.depthPointsLength = indexDiff1 + indexDiff2 + 1;
}
// set start and end depth points
if (bSliceOnX)
{
sliceData.startDepthPoint.x -= indexDiff1;
sliceData.endDepthPoint.x += indexDiff2;
}
else if (bSliceOnY)
{
sliceData.startDepthPoint.y -= indexDiff1;
sliceData.endDepthPoint.y += indexDiff2;
}
// start point
int index1 = (int)sliceData.startDepthPoint.y * depthWidth + (int)sliceData.startDepthPoint.x;
ushort depth1 = sensorData.depthImage[index1];
sliceData.startKinectPoint = kinectManager.MapDepthPointToSpaceCoords(sensorIndex, sliceData.startDepthPoint, depth1, true);
// end point
int index2 = (int)sliceData.endDepthPoint.y * depthWidth + (int)sliceData.endDepthPoint.x;
ushort depth2 = sensorData.depthImage[index2];
sliceData.endKinectPoint = kinectManager.MapDepthPointToSpaceCoords(sensorIndex, sliceData.endDepthPoint, depth2, true);
sliceData.startColorPoint = kinectManager.MapDepthPointToColorCoords(sensorIndex, sliceData.startDepthPoint, depth1);
sliceData.endColorPoint = kinectManager.MapDepthPointToColorCoords(sensorIndex, sliceData.endDepthPoint, depth2);
if (sliceData.startColorPoint.x < 0)
{
sliceData.startColorPoint.x = 0;
}
if (sliceData.endColorPoint.x >= sensorData.colorImageWidth)
{
sliceData.endColorPoint.x = sensorData.colorImageWidth - 1;
}
sliceData.colorPointsLength = (int)sliceData.endColorPoint.x - (int)sliceData.startColorPoint.x + 1;
// diameter
sliceData.diameter = (sliceData.endKinectPoint - sliceData.startKinectPoint).magnitude;
sliceData.isSliceValid = true;
return(sliceData);
}
// creates body slice data for user width
private BodySliceData GetUserWidthParams(Vector2 pointSpineBase)
{
int depthLength = sensorData.depthImage.Length;
int depthWidth = sensorData.depthImageWidth;
//int depthHeight = sensorData.depthImageHeight;
Vector2 posLeft = new Vector2(depthWidth, 0);
Vector2 posRight = new Vector2(-1, 0);
for (int i = 0, x = 0, y = 0; i < depthLength; i++)
{
if (sensorData.bodyIndexImage[i] == userBodyIndex)
{
if (posLeft.x > x)
{
posLeft = new Vector2(x, y);
}
if (posRight.x < x)
{
posRight = new Vector2(x, y);
}
}
x++;
if (x >= depthWidth)
{
x = 0;
y++;
}
}
BodySliceData sliceData = new BodySliceData();
sliceData.sliceType = BodySlice.WIDTH;
sliceData.isSliceValid = false;
if (posRight.x >= 0)
{
sliceData.startDepthPoint = posLeft;
sliceData.endDepthPoint = posRight;
sliceData.depthPointsLength = (int)posRight.x - (int)posLeft.x + 1;
int index1 = (int)posLeft.y * depthWidth + (int)posLeft.x;
ushort depth1 = sensorData.depthImage[index1];
sliceData.startKinectPoint = kinectManager.MapDepthPointToSpaceCoords(sensorIndex, sliceData.startDepthPoint, depth1, true);
int index2 = (int)posRight.y * depthWidth + (int)posRight.x;
ushort depth2 = sensorData.depthImage[index2];
sliceData.endKinectPoint = kinectManager.MapDepthPointToSpaceCoords(sensorIndex, sliceData.endDepthPoint, depth2, true);
sliceData.startColorPoint = kinectManager.MapDepthPointToColorCoords(sensorIndex, sliceData.startDepthPoint, depth1);
sliceData.endColorPoint = kinectManager.MapDepthPointToColorCoords(sensorIndex, sliceData.endDepthPoint, depth2);
if (sliceData.startColorPoint.x < 0)
{
sliceData.startColorPoint.x = 0;
}
if (sliceData.endColorPoint.x >= sensorData.colorImageWidth)
{
sliceData.endColorPoint.x = sensorData.colorImageWidth - 1;
}
sliceData.colorPointsLength = (int)sliceData.endColorPoint.x - (int)sliceData.startColorPoint.x + 1;
// correct y-positions of depth points
sliceData.startDepthPoint.y = pointSpineBase.y;
sliceData.endDepthPoint.y = pointSpineBase.y;
sliceData.diameter = (sliceData.endKinectPoint - sliceData.startKinectPoint).magnitude;
sliceData.isSliceValid = true;
}
return(sliceData);
}
// creates body slice data for user height
private BodySliceData GetUserHeightParams(Vector2 pointSpineBase)
{
int depthLength = sensorData.depthImage.Length;
int depthWidth = sensorData.depthImageWidth;
int depthHeight = sensorData.depthImageHeight;
Vector2 posTop = new Vector2(0, depthHeight);
for (int i = 0, x = 0, y = 0; i < depthLength; i++)
{
if (sensorData.bodyIndexImage[i] == userBodyIndex)
{
//if (posTop.y > y)
posTop = new Vector2(x, y);
break;
}
x++;
if (x >= depthWidth)
{
x = 0;
y++;
}
}
Vector2 posBottom = new Vector2(0, -1);
for (int i = depthLength - 1, x = depthWidth - 1, y = depthHeight - 1; i >= 0; i--)
{
if (sensorData.bodyIndexImage[i] == userBodyIndex)
{
//if (posBottom.y < y)
posBottom = new Vector2(x, y);
break;
}
x--;
if (x < 0)
{
x = depthWidth - 1;
y--;
}
}
BodySliceData sliceData = new BodySliceData();
sliceData.sliceType = BodySlice.HEIGHT;
sliceData.isSliceValid = false;
if (posBottom.y >= 0)
{
sliceData.startDepthPoint = posTop;
sliceData.endDepthPoint = posBottom;
sliceData.depthPointsLength = (int)posBottom.y - (int)posTop.y + 1;
int index1 = (int)posTop.y * depthWidth + (int)posTop.x;
ushort depth1 = sensorData.depthImage[index1];
sliceData.startKinectPoint = kinectManager.MapDepthPointToSpaceCoords(sensorIndex, sliceData.startDepthPoint, depth1, true);
int index2 = (int)posBottom.y * depthWidth + (int)posBottom.x;
ushort depth2 = sensorData.depthImage[index2];
sliceData.endKinectPoint = kinectManager.MapDepthPointToSpaceCoords(sensorIndex, sliceData.endDepthPoint, depth2, true);
sliceData.startColorPoint = kinectManager.MapDepthPointToColorCoords(sensorIndex, sliceData.startDepthPoint, depth1);
sliceData.endColorPoint = kinectManager.MapDepthPointToColorCoords(sensorIndex, sliceData.endDepthPoint, depth2);
if (sliceData.startColorPoint.y < 0)
{
sliceData.startColorPoint.y = 0;
}
if (sliceData.endColorPoint.y >= sensorData.colorImageHeight)
{
sliceData.endColorPoint.y = sensorData.colorImageHeight - 1;
}
sliceData.colorPointsLength = (int)sliceData.endColorPoint.y - (int)sliceData.startColorPoint.y + 1;
// correct x-positions of depth points
sliceData.startDepthPoint.x = pointSpineBase.x;
sliceData.endDepthPoint.x = pointSpineBase.x;
sliceData.diameter = (sliceData.endKinectPoint - sliceData.startKinectPoint).magnitude;
sliceData.isSliceValid = true;
}
return(sliceData);
}