Opacity Property

public float Opacity {get; set;}

public float Opacity {get; set;}

 get_Opacity();
 set_Opacity(value);

public:
property float Opacity {
   float get();
   void set (    float value);
}

'Declaration
 
Public Property Opacity As Single

'Usage
 
Dim instance As Medical3DObject
Dim value As Single
 
instance.Opacity = value
 
value = instance.Opacity

Property Value

The opacity value (transparency) of the 3D object.

This feature works only with objects rendered using the VRT rendering technique.

To switch to the VRT rendering technique, set the value of the VolumeType property to Medical3DVolumeType.VRT.

Opacity values affect the amount of voxel transparency. Voxels still participate in the final 3D result and aren't totally removed as in the remove density method.

Visual Basic
C#

<Test> _
Public Sub Medical3DControlExample()
   Dim LoadObject As Medical3DLoadDICOMSeriesExamples = New Medical3DLoadDICOMSeriesExamples()
   Dim output As MedicalViewerSeriesManager = LoadObject.LoadJamesHead()
   Dim form As MainForm1 = New MainForm1(output)
   form.ShowDialog()
End Sub

' MainForm1 will be the owner of the medical viewer control.
Private Class MainForm1 : Inherits Form
   Private _medical3DControl As Medical3DControl

   Public Sub New(ByVal output As MedicalViewerSeriesManager)
      Dim _codecs As RasterCodecs = New RasterCodecs()
      Dim _image As RasterImage

      Dim codecsInformation As CodecsImageInfo

      _medical3DControl = New Medical3DControl()
      AddHandler SizeChanged, AddressOf MainForm1_SizeChanged
      AddHandler FormClosing, AddressOf MainForm1_FormClosing


      _medical3DControl.ObjectsContainer.Objects.Add(New Medical3DObject())

      Dim index As Integer

      codecsInformation = _codecs.GetInformation(CStr(output.Stacks(0).Items(0).Data), True)


      Dim width As Integer = codecsInformation.Width
      Dim height As Integer = codecsInformation.Height
      Dim depth As Integer = 256

      _medical3DControl.ObjectsContainer.Objects(0).MemoryEfficientInit(depth)

      index = 0
      Do While index < depth

         _image = _codecs.Load(CStr(output.Stacks(0).Items(index).Data), 0, CodecsLoadByteOrder.BgrOrGrayOrRomm, 1, 1)
         _medical3DControl.ObjectsContainer.Objects(0).MemoryEfficientSetFrame(_image, index, output.Stacks(0).Items(index).ImagePosition, True)
         index += 1
      Loop

      Dim spearator As String = ("\")
      Dim test As String() = output.Stacks(0).Items(0).ImageOrientation.Split(spearator.ToCharArray())
      Dim orientation As Single() = New Single(5){}
      Dim i As Integer
      For i = 0 To 5
         orientation(i) = CSng(Convert.ToDouble(test(i)))
      Next i

      _medical3DControl.ObjectsContainer.Objects(0).MemoryEfficientEnd(orientation, output.Stacks(0).PixelSpacing)

      _medical3DControl.ObjectsContainer.Objects(0).WindowLevelProperties.Center = 350
      _medical3DControl.ObjectsContainer.Objects(0).WindowLevelProperties.Width = 1450

      _medical3DControl.ObjectsContainer.Objects(0).Opacity = 10

      _medical3DControl.AddAction(MedicalViewerActionType.Rotate3DObject)
      _medical3DControl.SetAction(MedicalViewerActionType.Rotate3DObject, MedicalViewerMouseButtons.Left, MedicalViewerActionFlags.Active)

      _medical3DControl.AddAction(MedicalViewerActionType.WindowLevel)
      _medical3DControl.SetAction(MedicalViewerActionType.WindowLevel, MedicalViewerMouseButtons.Right, MedicalViewerActionFlags.Active)


      Controls.Add(_medical3DControl)
   End Sub

   Private Sub MainForm1_FormClosing(ByVal sender As Object, ByVal e As FormClosingEventArgs)
      _medical3DControl.Dispose()
   End Sub

   Private Sub MainForm1_SizeChanged(ByVal sender As Object, ByVal e As EventArgs)
      If Not _medical3DControl Is Nothing Then
         _medical3DControl.Size = New Size(Me.ClientRectangle.Right, Me.ClientRectangle.Bottom)
      End If
   End Sub
End Class

public void Medical3DControlExample()
{
    Medical3DLoadDICOMSeriesExamples LoadObject = new Medical3DLoadDICOMSeriesExamples();
    MedicalViewerSeriesManager output = LoadObject.LoadJamesHead();

    MainForm1 form = new MainForm1(output);
    form.ShowDialog();
}

// MainForm1 will be the owner of the medical viewer control.
class MainForm1 : Form
{
    private Medical3DControl _medical3DControl;

    public MainForm1(MedicalViewerSeriesManager output)
    {
        RasterCodecs _codecs = new RasterCodecs();
        RasterImage _image;

        CodecsImageInfo codecsInformation;

        _medical3DControl = new Medical3DControl();
        this.SizeChanged += new EventHandler(MainForm1_SizeChanged);
        this.FormClosing += new FormClosingEventHandler(MainForm1_FormClosing);


        _medical3DControl.ObjectsContainer.Objects.Add(new Medical3DObject());

        int index;

        codecsInformation = _codecs.GetInformation((string)output.Stacks[0].Items[0].Data, true);


        int width = codecsInformation.Width;
        int height = codecsInformation.Height;
        int depth = 256;

        _medical3DControl.ObjectsContainer.Objects[0].MemoryEfficientInit(depth);

        for (index = 0; index < depth; index++)
        {

            _image = _codecs.Load((string)output.Stacks[0].Items[index].Data, 0, CodecsLoadByteOrder.BgrOrGrayOrRomm, 1, 1);
            _medical3DControl.ObjectsContainer.Objects[0].MemoryEfficientSetFrame(_image, index, output.Stacks[0].Items[index].ImagePosition, true);
        }

        string spearator = ("\\");
        string[] test = output.Stacks[0].Items[0].ImageOrientation.Split(spearator.ToCharArray());
        float[] orientation = new float[6];
        int i;
        for (i = 0; i < 6; i++)
        {
            orientation[i] = (float)Convert.ToDouble(test[i]);
        }

        _medical3DControl.ObjectsContainer.Objects[0].MemoryEfficientEnd(orientation, output.Stacks[0].PixelSpacing);

        _medical3DControl.ObjectsContainer.Objects[0].WindowLevelProperties.Center = 350;
        _medical3DControl.ObjectsContainer.Objects[0].WindowLevelProperties.Width = 1450;

        _medical3DControl.ObjectsContainer.Objects[0].Opacity = 10;

        _medical3DControl.AddAction(MedicalViewerActionType.Rotate3DObject);
        _medical3DControl.SetAction(MedicalViewerActionType.Rotate3DObject, MedicalViewerMouseButtons.Left, MedicalViewerActionFlags.Active);

        _medical3DControl.AddAction(MedicalViewerActionType.WindowLevel);
        _medical3DControl.SetAction(MedicalViewerActionType.WindowLevel, MedicalViewerMouseButtons.Right, MedicalViewerActionFlags.Active);


        Controls.Add(_medical3DControl);
    }

    void MainForm1_FormClosing(object sender, FormClosingEventArgs e)
    {
        _medical3DControl.Dispose();
    }

    void MainForm1_SizeChanged(object sender, EventArgs e)
    {
        if (_medical3DControl != null)
            _medical3DControl.Size = new Size(this.ClientRectangle.Right, this.ClientRectangle.Bottom);
    }
}

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

Medical3DObject Class
Medical3DObject Members