Can not get positionWorld, speed, localRotation, globalOrientation, or positionImage.z Data

[John_H_17]

Hello,

I've got a problem with my slightly modified HandsViewer example. I want to get the X, Y, and Z data of the hands center point. I could successfully get the X and Y data but the Z data just returns zero. Regardless of weather I use positionWorld or positionImage. On top of that I also cannot get speed, localRotation or globalOrientation. Not that I need the information, I was just trying to figure what is wrong. Am I missing an initialization somewhere? 

Thanks in advance. 

        public void DisplayJoints(PXCMHandData.JointData[][] nodes, int numOfHands)
        {

            if (bitmap == null) return;
            if (nodes == null) return;

            if (Joints.Checked || Skeleton.Checked)
            {
                lock (this)
                {
                    int scaleFactor = 1;

                    Graphics g = Graphics.FromImage(bitmap);

                    using (Pen boneColor = new Pen(Color.DodgerBlue, 3.0f))
                    {
                        for (int i = 0; i < numOfHands; i++)
                        {
                            if (nodes[0] == null) continue;
                            int baseX = (int) nodes[0].positionImage.x/scaleFactor;
                            int baseY = (int) nodes[0].positionImage.y/scaleFactor;

                            int wristX = (int) nodes[0].positionImage.x/scaleFactor;
                            int wristY = (int) nodes[0].positionImage.y/scaleFactor;

                            if (Skeleton.Checked)
                            {
                                for (int j = 1; j < 22; j++)
                                {
                                    if (nodes == null) continue;
                                    int x = (int) nodes.positionImage.x/scaleFactor;
                                    int y = (int) nodes.positionImage.y/scaleFactor;

                                    if (nodes.confidence <= 0) continue;

                                    if (j == 2 || j == 6 || j == 10 || j == 14 || j == 18)
                                    {

                                        baseX = wristX;
                                        baseY = wristY;
                                    }

                                    g.DrawLine(boneColor, new Point(baseX, baseY), new Point(x, y));
                                    baseX = x;
                                    baseY = y;
                                }
                            }

                            if (Joints.Checked)
                            {
                                using (
                                    Pen red = new Pen(Color.Red, 3.0f),
                                        black = new Pen(Color.Black, 3.0f),
                                        green = new Pen(Color.Green, 3.0f),
                                        blue = new Pen(Color.Blue, 3.0f),
                                        cyan = new Pen(Color.Cyan, 3.0f),
                                        yellow = new Pen(Color.Yellow, 3.0f),
                                        orange = new Pen(Color.Orange, 3.0f))
                                {
                                    Pen currnetPen = black;

                                    for (int j = 0; j < PXCMHandData.NUMBER_OF_JOINTS; j++)
                                    {
                                        float sz = 4;

                                        int x = (int) nodes.positionImage.x/scaleFactor;
                                        int y = (int) nodes.positionImage.y/scaleFactor;
                                        int testz = (int)nodes.positionWorld.z;

                                        if (nodes.confidence <= 0) continue;

                                        //Wrist
                                        if (j == 0)
                                        {
                                            currnetPen = black;
                                        }

                                        //Center
                                        if (j == 1)
                                        {
                                            currnetPen = red;
                                            sz += 5;
                                            UpdateInfo("X Pos: " + x.ToString() + ",  Y Pos: " + y.ToString() + ",  Depth: " + testz.ToString() + Environment.NewLine, System.Drawing.Color.Black); // Here is where I print the data

                                        }

                                        //Thumb
                                        if (j == 2 || j == 3 || j == 4 || j == 5)
                                        {
                                            currnetPen = green;
                                        }
                                        //Index Finger
                                        if (j == 6 || j == 7 || j == 8 || j == 9)
                                        {
                                            currnetPen = blue;
                                        }
                                        //Finger
                                        if (j == 10 || j == 11 || j == 12 || j == 13)
                                        {
                                            currnetPen = yellow;
                                        }
                                        //Ring Finger
                                        if (j == 14 || j == 15 || j == 16 || j == 17)
                                        {
                                            currnetPen = cyan;
                                        }
                                        //Pinkey
                                        if (j == 18 || j == 19 || j == 20 || j == 21)
                                        {
                                            currnetPen = orange;
                                        }


                                        if (j == 5 || j == 9 || j == 13 || j == 17 || j == 21)
                                        {
                                            sz += 4;
                                            //currnetPen.Width = 1;
                                        }

                                        g.DrawEllipse(currnetPen, x - sz/2, y - sz/2, sz, sz);
                                    }
                                }
                            }

                           

                        }

                    }
                    g.Dispose();
                }
            }
        }

[samontab]

If you have the image location in pixels, you should be able to get XYZ by using the projection methods of the API.

[Ariska_Hidayat]

 I think you can get  positionWorld, speed, localRotation, globalOrientation if you use typedata float. about value positionImage.z always zero. because image not have depth. so return value always zero.