Kinect＆amp;处理 - 将关节的位置转换为鼠标x和鼠标y？

Question

我目前正在使用XBOX KINECT型号1414，并处理2.2.1。我希望用右手作为鼠标来引导角色通过屏幕。

我设法绘制一个椭圆来跟随kinect骨架上的右手关节。我怎么能弄清楚那个关节的位置，以便我可以在需要时替换mouseX和mouseY？

下面是跟踪右手并在其上绘制红色椭圆的代码：

import SimpleOpenNI.*;

SimpleOpenNI  kinect;

void setup()
{
// instantiate a new context
kinect = new SimpleOpenNI(this);
kinect.setMirror(!kinect.mirror());
// enable depthMap generation 
kinect.enableDepth();

// enable skeleton generation for all joints
kinect.enableUser();

smooth(); 
noStroke(); 

// create a window the size of the depth information
size(kinect.depthWidth(), kinect.depthHeight());

}



void draw()
{

// update the camera...must do
kinect.update();

// draw depth image...optional
image(kinect.depthImage(), 0, 0); 

background(0);


// check if the skeleton is being tracked for user 1 (the first user that detected)
if (kinect.isTrackingSkeleton(1))
{   
int joint = SimpleOpenNI.SKEL_RIGHT_HAND;

// draw a dot on their joint, so they know what's being tracked
drawJoint(1, joint);

PVector point1 = new PVector(-500, 0, 1500);
PVector point2 = new PVector(500, 0, 700);
}
}

///////////////////////////////////////////////////////

void drawJoint(int userID, int jointId) {
// make a vector to store the left hand
PVector jointPosition = new PVector();
// put the position of the left hand into that vector
kinect.getJointPositionSkeleton(userID, jointId, jointPosition);
// convert the detected hand position to "projective" coordinates that will match the depth image
PVector convertedJointPosition = new PVector();
kinect.convertRealWorldToProjective(jointPosition, convertedJointPosition);
// and display it
fill(255, 0, 0);

float ellipseSize = map(convertedJointPosition.z, 700, 2500, 50, 1);
ellipse(convertedJointPosition.x, convertedJointPosition.y, ellipseSize, ellipseSize);
}

//////////////////////////// Event-based Methods

void onNewUser(SimpleOpenNI curContext, int userId)
{
println("onNewUser - userId: " + userId);
println("\tstart tracking skeleton");

curContext.startTrackingSkeleton(userId);
}

void onLostUser(SimpleOpenNI curContext, int userId)
{
println("onLostUser - userId: " + userId);
}

非常感谢任何类型的链接或帮助，谢谢！