Question

我尝试为每个关节指定一个名称。调用函数是：

 for(int t=0;t<body._body.Length;t++)
        {
            DrawPoint(body._body[t], canvs,col_t,col_i);
        }

和完整的DrawPoint功能：

 public static void DrawPoint(JointData _joint, Canvas canvs, Color col_t, Color col_i)
    {

        #region convert JointData to Kinect.Joint type
        Joint currentJoint;
        currentJoint.TrackingState = JointTrackingState.NotTracked;
        currentJoint.Position.X = -1;
        currentJoint.Position.Y = -1;
        currentJoint.Position.Z = -1;
        currentJoint.JointType = JointType.AnkleLeft;

        if (_joint._TrackState == "Tracked")
            currentJoint.TrackingState = JointTrackingState.Tracked;
        if (_joint._TrackState == "Inferred")
            currentJoint.TrackingState = JointTrackingState.Inferred;
        if (_joint._TrackState == "NotTracked")
            currentJoint.TrackingState = JointTrackingState.NotTracked;

        if (_joint._jointType == "AnkleLeft")
            currentJoint.JointType = JointType.AnkleLeft;
        if (_joint._jointType == "AnkleRight")
            currentJoint.JointType = JointType.AnkleRight;
        if (_joint._jointType == "ElbowLeft")
            currentJoint.JointType = JointType.ElbowLeft;
        if (_joint._jointType == "ElbowRight")
            currentJoint.JointType = JointType.ElbowRight;
        if (_joint._jointType == "FootLeft")
            currentJoint.JointType = JointType.FootLeft;
        if (_joint._jointType == "FootRight")
            currentJoint.JointType = JointType.FootRight;
        if (_joint._jointType == "HandLeft")
            currentJoint.JointType = JointType.HandLeft;
        if (_joint._jointType == "HandRight")
            currentJoint.JointType = JointType.HandRight;
        if (_joint._jointType == "HandTipLeft")
            currentJoint.JointType = JointType.HandTipLeft;
        if (_joint._jointType == "HandTipRight")
            currentJoint.JointType = JointType.HandTipRight;
        if (_joint._jointType == "Head")
            currentJoint.JointType = JointType.Head;
        if (_joint._jointType == "HipLeft")
            currentJoint.JointType = JointType.HipLeft;
        if (_joint._jointType == "HipRight")
            currentJoint.JointType = JointType.HipRight;
        if (_joint._jointType == "KneeLeft")
            currentJoint.JointType = JointType.KneeLeft;
        if (_joint._jointType == "KneeRight")
            currentJoint.JointType = JointType.KneeRight;
        if (_joint._jointType == "Neck")
            currentJoint.JointType = JointType.Neck;
        if (_joint._jointType == "ShoulderLeft")
            currentJoint.JointType = JointType.ShoulderLeft;
        if (_joint._jointType == "ShoulderRight")
            currentJoint.JointType = JointType.ShoulderRight;
        if (_joint._jointType == "SpineBase")
            currentJoint.JointType = JointType.SpineBase;
        if (_joint._jointType == "SpineMid")
            currentJoint.JointType = JointType.SpineMid;
        if (_joint._jointType == "SpineShoulder")
            currentJoint.JointType = JointType.SpineShoulder;
        if (_joint._jointType == "ThumbLeft")
            currentJoint.JointType = JointType.ThumbLeft;
        if (_joint._jointType == "ThumbRight")
            currentJoint.JointType = JointType.ThumbRight;
        if (_joint._jointType == "WristLeft")
            currentJoint.JointType = JointType.WristLeft;
        if (_joint._jointType == "WristRight")
            currentJoint.JointType = JointType.WristRight;

        currentJoint.Position.X = (float)Convert.ToDouble(_joint._position[0]);
        currentJoint.Position.Y = (float)Convert.ToDouble(_joint._position[1]);
        currentJoint.Position.Z = (float)Convert.ToDouble(_joint._position[2]);
        #endregion

        #region drawing

        Color currentColor = Colors.Blue;

        if (currentJoint.TrackingState == TrackingState.NotTracked) return;

        //if (currentJoint.TrackingState == TrackingState.Inferred) currentColor = Colors.Yellow;
        if (currentJoint.TrackingState == TrackingState.Inferred) currentColor = col_i;
        //if (currentJoint.TrackingState == TrackingState.Tracked) currentColor = Colors.Green;
        if (currentJoint.TrackingState == TrackingState.Tracked) currentColor = col_t;

        currentJoint = ScaleTo(currentJoint, canvs.ActualWidth, canvs.ActualHeight);

        Ellipse ellipse = new Ellipse
        {
            Width = 8,
            Height = 8,
            Fill = new SolidColorBrush(currentColor)
        };

        Canvas.SetLeft(ellipse, currentJoint.Position.X - ellipse.Width / 2);
        Canvas.SetTop(ellipse, currentJoint.Position.Y - ellipse.Height / 2);

        canvs.Children.Add(ellipse);
        #endregion

    }

但是，我在第

行收到错误

currentJoint.TrackingState = JointTrackingState.NotTracked;

“使用未分配的局部变量'currentJoint'” 然后使currentJoint.Position和currentJoint.JointType返回错误“无法修改'Joint.Position'的返回值，因为它不是变量”和“属性或索引器'Joint.JointType'无法分配给 - 它只是“只读”。

我该如何解决这些错误？提前谢谢！

Answer 1

你找到了问题吗？我唯一可能看到错误的是Joint currentJoint;可能需要更改为Joint currentJoint = new Joint(); 希望这可以解决问题。

Kinect：为Joint指定联名

1 个答案: