显示3D模型的坐标(位置)

时间:2015-08-05 21:10:05

标签: c# wpf coordinates 3d-model

我在C#wpf中有一个3D模型,每次使用时间跨度旋转360度旋转5度。但我希望能够查看其坐标,例如在窗口窗体上查看point3DX,point3DY,point3DZ。

任何想法我该怎么做?

以下是我设置初始位置和模型旋转的功能

 private void SetViewPosition()
    {
        Vector3D vAxis = new Vector3D(0, 0, 1);
        ///<summary>
        ///R = AxisAngleRotation()
        ///vAxis = Vector length
        ///-15 = Angle
        ///</summary>
        AxisAngleRotation3D myRotation = new AxisAngleRotation3D(vAxis, -15);
        RotateTransform3D myRotationTransform = new RotateTransform3D(myRotation);
        gCamWC = myRotationTransform.Value;
        gCamWC.M14 = -50;
        gCamWC.M24 = 10;
        gCamWC.M34 = 0;

        Point3D camPosition = new Point3D(gCamWC.M14, gCamWC.M24, gCamWC.M34);
        Vector3D startLookAt = new Vector3D(gCamWC.M11, gCamWC.M21, gCamWC.M31);//VLook = 1st Column//DT=[1,0,0]//Vertical
        Vector3D startLookUp = new Vector3D(gCamWC.M13, gCamWC.M23, gCamWC.M33);//VUp = 2nd Column//DT = [0,0,1]//Vertical


        DrawingControl.Viewport.SetView(camPosition, startLookAt, startLookUp, 0);//=DR -> How the camera should move

    }

    //STEP 4
   private void RotatingModelAround(object sender, EventArgs e)
    {
        Vector3D vAxis = new Vector3D(gCamWC.M31, gCamWC.M32, gCamWC.M33);  //Rotate about world z-axis.
        AxisAngleRotation3D myRotation = new AxisAngleRotation3D(vAxis, 5);
        RotateTransform3D myRotationTransform = new RotateTransform3D(myRotation);

        Matrix3D doTranslation = new Matrix3D();
        doTranslation.M24 = 3;  // Offset along camera y-axis.  Presumed to be parallel to world plane.


        gCamWC.Append(myRotationTransform.Value);
        gCamWC.Append(doTranslation);

        Point3D camPosition = new Point3D(gCamWC.M14, gCamWC.M24, gCamWC.M34);
        Vector3D camLookAt = new Vector3D(gCamWC.M11, gCamWC.M21, gCamWC.M31);
        Vector3D camLookUp = new Vector3D(gCamWC.M13, gCamWC.M23, gCamWC.M33);

        DrawingControl.Viewport.SetView(camPosition, camLookAt, camLookUp, 0);
    }

这就是他们所谓的地方

   public XplorerMainWindow()
    {
        InitializeComponent();
        Closed += XplorerMainWindow_Closed;
        //STEP 1
        Loaded += XplorerMainWindow_Loaded;

        Closing += XplorerMainWindow_Closing;
        DrawingControl.UserModeledDimensionChangedEvent += DrawingControl_MeasureChangedEvent;
        InitFromSettings();

        RefreshRecentFiles();

        UserFilters = new FilterValues();//COBie Class filters, set to initial defaults
        CoBieTemplate = UkTemplate;


        if (Settings.Default.PluginStartupLoad)
            RefreshPlugins();




        //STEP 4
       // Add Dispatcer Time so the Rotation will be repeated
        System.Windows.Threading.DispatcherTimer dispatcherTimer = new System.Windows.Threading.DispatcherTimer();
        dispatcherTimer.Tick += RotatingModelAround;
        //dispatcherTimer.Tick += QRotateModel;
        dispatcherTimer.Interval = new TimeSpan(0, 0, 0, 0,300);//(d,h,m,s,mil.s.)
        dispatcherTimer.Start();


    }

例如根据我的项目,我想要这部分代码:

Point3D camPosition = new Point3D(gCamWC.M14, gCamWC.M24, gCamWC.M34);
        Vector3D camLookAt = new Vector3D(gCamWC.M11, gCamWC.M21, gCamWC.M31);
        Vector3D camLookUp = new Vector3D(gCamWC.M13, gCamWC.M23, gCamWC.M33);

...显示在我的窗口表格中:

相机位置:( - 50.00,10.00,0.00) 相机观察:(1.00,0.00,0.00) 相机观察:(0.00,0.00,1.00)

每次相机旋转5度时,更改的值将显示在窗口

1 个答案:

答案 0 :(得分:2)

(请参阅下面的更新以回应您更多地澄清您的问题:))

最初你说你想知道你的3D模型的坐标。

  

我在C#wpf中有一个3D模型,旋转360度旋转5度   每次使用时间跨度。但我希望能够查看它   像在我的窗口上查看point3DX,point3DY,point3DZ一样坐标   形式。

然而,在评论中,您澄清说它实际上是您感兴趣的相机位置。

  

......我想要的是...查看坐标或位置   相机每次移动时,我都希望显示坐标   我的窗口形式。

假设评论是您真正的问题(如何获取并显示我相机的3D位置),这是我的解决方案:

gCamWC Matrix3D。我知道这是因为:

gCamWC = myRotationTransform.Value;

..由于myRotationTransform是RotateTransform3d,因此其值为Matrix3D(documentation)。

我不熟悉Matrix3D,但快速的MSDN搜索建议你可以创建一个标签(我称之为posLabel),并在你附加gCamWC之后在RotatingModelAround方法中执行此操作:

posLabel.Text = "{0}\t{1}\t{2}", gCamWC.offsetX, gCamWC.offsetY, gCamWC.offsetZ;

如果它有效,这应该使标签说出这样的东西(例如3.0,6.7,8.9的矢量):

  

3.0 6.7 8.9

**(抱歉,格式化不允许我做标签空间,但每个值之间会有一个标签)*

它每次旋转都应该更新。

修改 你说你想要一个这样的标签:

  

相机位置:( - 50.00,10.00,0.00)相机观察:(1.00,0.00,   0.00)相机观察:(0.00,0.00,1.00)

尝试创建一个名为posLabel的标签,然后在完成在RotatingModelAround()方法中附加gCamWC后添加以下代码:

posLabel.Text = "Camera Position: (" + gCamWC.M14 + ", " + gCamWC.M24 + ", " + gCamWC.M34 + ") Camera LookAt: (" + gCamWC.M11 + ", " + gCamWC.M21 + ", " + gCamWC.M31 + ") Camera LookUp: (" + gCamWC.M13 + ", " + gCamWC.M23 + ", " + gCamWC.M33 + ")";