LEADTOOLS Medical (Leadtools.MedicalViewer assembly)
LEAD Technologies, Inc

Data3DRequested Event

Example 





Optional delegate method for additional processing.
Syntax
'Declaration
 
Public Event Data3DRequested As EventHandler(Of MedicalViewerData3DRequestedEventArgs)
'Usage
 
Dim instance As MedicalViewerCell
Dim handler As EventHandler(Of MedicalViewerData3DRequestedEventArgs)
 
AddHandler instance.Data3DRequested, handler
add_Data3DRequested(function(sender, e))
remove_Data3DRequested(function(sender, e))

Event Data

The event handler receives an argument of type MedicalViewerData3DRequestedEventArgs containing data related to this event. The following MedicalViewerData3DRequestedEventArgs properties provide information specific to this event.

PropertyDescription
ImageIndex Gets the value that indicates the index of the requested image.
InformationType Gets the type of the requested 3D information from the Medical Viewer to the Medical 3D engine.
Succeed Gets or sets the value that indicates whether the requesting the 3D information has succeed or not.
Example
 
Private Class MedicalViewerCutLineForm : Inherits Form
    Private _medicalViewer As MedicalViewer
    Private _seriesManager As MedicalViewerSeriesManager
    Private Sub MedicalViewerCutLineForm_SizeChanged(ByVal sender As Object, ByVal e As EventArgs)
        _medicalViewer.Size = New Size(Me.ClientRectangle.Right, Me.ClientRectangle.Bottom)
    End Sub

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

        AddHandler SizeChanged, AddressOf MedicalViewerCutLineForm_SizeChanged

        ' Create the medical viewer and adjust the size and the location.
        _medicalViewer = New MedicalViewer(1, 2)
        _medicalViewer.Location = New Point(0, 0)
        _medicalViewer.Size = New Size(Me.ClientRectangle.Right, Me.ClientRectangle.Bottom)

        _seriesManager = output

        Dim cell As MedicalViewerMultiCell = New MedicalViewerMultiCell(Nothing, True, 1, 1)

        Dim index As Integer
        Dim count As Integer = output.Stacks(0).Items.Count
        Dim codecsInformation As CodecsImageInfo

        ' Get the image information for each frame and send them to the low memory usage function.
        Dim imageInformation As MedicalViewerImageInformation() = New MedicalViewerImageInformation(count - 1) {}
        index = 0
        Do While index < count
            codecsInformation = _codecs.GetInformation(CStr(output.Stacks(0).Items(index).Data), True)

            imageInformation(index) = New MedicalViewerImageInformation()
            imageInformation(index).ImageHeight = codecsInformation.Width
            imageInformation(index).ImageWidth = codecsInformation.Width
            imageInformation(index).XResolution = codecsInformation.XResolution
            imageInformation(index).YResolution = codecsInformation.YResolution
            index += 1
        Loop

        AddHandler cell.Data3DRequested, AddressOf cell_Data3DRequested
        AddHandler cell.Data3DFrameRequested, AddressOf cell_Data3DFrameRequested
        AddHandler cell.FramesRequested, AddressOf cell_FramesRequested
        AddHandler FormClosing, AddressOf MedicalViewerCutLineForm_FormClosing
        cell.EnableLowMemoryUsage(2, count, imageInformation)

        _medicalViewer.Cells.Add(cell)

        cell.PixelSpacing = output.Stacks(0).PixelSpacing

        index = 0
        Do While index < count
            cell.SetImagePosition(index, output.Stacks(0).Items(index).ImagePosition, (index = count - 1))
            index += 1
        Loop

        ' add some actions that will be used to change the properties of the images inside the control.
        cell.AddAction(MedicalViewerActionType.WindowLevel)
        cell.AddAction(MedicalViewerActionType.Alpha)
        cell.AddAction(MedicalViewerActionType.Offset)

        ' assign the added actions to a mouse button, meaning that when the user clicks and drags the mouse button, the associated action will be activated.
        cell.SetAction(MedicalViewerActionType.WindowLevel, MedicalViewerMouseButtons.Left, MedicalViewerActionFlags.Active)
        cell.SetAction(MedicalViewerActionType.Alpha, MedicalViewerMouseButtons.Middle, MedicalViewerActionFlags.Active)
        cell.SetAction(MedicalViewerActionType.Offset, MedicalViewerMouseButtons.Right, MedicalViewerActionFlags.Active)

        ' adjust some properties of the cell and add some tags.
        _medicalViewer.Cells(0).SetTag(2, MedicalViewerTagAlignment.TopLeft, MedicalViewerTagType.UserData, "EX. ID 230-36-5448")
        _medicalViewer.Cells(0).SetTag(4, MedicalViewerTagAlignment.TopLeft, MedicalViewerTagType.Frame)
        _medicalViewer.Cells(0).SetTag(6, MedicalViewerTagAlignment.TopLeft, MedicalViewerTagType.Scale)
        _medicalViewer.Cells(0).SetTag(2, MedicalViewerTagAlignment.BottomLeft, MedicalViewerTagType.WindowLevelData)
        _medicalViewer.Cells(0).SetTag(1, MedicalViewerTagAlignment.BottomLeft, MedicalViewerTagType.FieldOfView)

        ' Set the image DICOM data
        cell.PixelSpacing = output.Stacks(0).PixelSpacing

        ' Create some cells that will hold the derivative images resulted from the cut-planes.
        Dim singleDerivativeCell As MedicalViewerCell = New MedicalViewerCell()
        Dim firstDerivativeCell As MedicalViewerCell = New MedicalViewerCell()
        Dim secondDerivativeCell As MedicalViewerCell = New MedicalViewerCell()

        AddHandler cell.DerivativeGenerated, AddressOf cell_DerivativeGenerated

        ' create a single cut-plane and double cut-plane.
        cell.ReferenceLine.CutLines.Add(New MedicalViewerPlaneCutLine(singleDerivativeCell))
        cell.ReferenceLine.DoubleCutLines.Add(New MedicalViewerDoublePlaneCutLine(firstDerivativeCell, secondDerivativeCell))

        _medicalViewer.Cells.Add(singleDerivativeCell)
        _medicalViewer.Cells.Add(firstDerivativeCell)
        _medicalViewer.Cells.Add(secondDerivativeCell)

        Controls.Add(_medicalViewer)
        _medicalViewer.Dock = DockStyle.Fill
    End Sub

    Private Sub MedicalViewerCutLineForm_FormClosing(ByVal sender As Object, ByVal e As FormClosingEventArgs)
    End Sub

    Private Sub cell_Data3DRequested(ByVal sender As Object, ByVal e As MedicalViewerData3DRequestedEventArgs)
        e.Succeed = Medical3DEngine.Provide3DInformation(e)
    End Sub

    Private Sub cell_Data3DFrameRequested(ByVal sender As Object, ByVal e As MedicalViewer3DFrameRequestedEventArgs)
        Dim _codecs As RasterCodecs = New RasterCodecs()
        e.Image = _codecs.Load(CStr(_seriesManager.Stacks(0).Items(e.ImageIndex).Data))
        _codecs.Dispose()
    End Sub

    Private Sub cell_DerivativeGenerated(ByVal sender As Object, ByVal e As MedicalViewerDerivativeGeneratedEventArgs)
        e.DerivativeCell.ShowCellBoundaries = True
        e.DerivativeCell.ReferenceLine.Enabled = True
    End Sub

    Private Sub cell_FramesRequested(ByVal sender As Object, ByVal e As MedicalViewerRequestedFramesInformationEventArgs)
        Dim cell As MedicalViewerMultiCell = CType(sender, MedicalViewerMultiCell)
        Dim _codecs As RasterCodecs = New RasterCodecs()
        Dim i As Integer
        Dim image As RasterImage
        Dim fileName As String

        If e.RequestedFramesIndexes.Length > 0 Then
            fileName = CStr(_seriesManager.Stacks(0).Items(e.RequestedFramesIndexes(0)).Data)
            image = _codecs.Load(fileName)
        Else
            Return
        End If

        i = 1
        Do While i < e.RequestedFramesIndexes.Length
            fileName = CStr(_seriesManager.Stacks(0).Items(e.RequestedFramesIndexes(i)).Data)
            image.AddPage(_codecs.Load(fileName))
            i += 1
        Loop

        cell.SetRequestedImage(image, e.RequestedFramesIndexes, MedicalViewerSetImageOptions.Insert)
    End Sub

    Public ReadOnly Property Viewer() As MedicalViewer
        Get
            Return _medicalViewer
        End Get
    End Property
End Class

Private Function GetMedicalViewerCutLineControl() As MedicalViewerCutLineForm
    Dim form As MedicalViewerSeriesManagerFrom = New MedicalViewerSeriesManagerFrom()
    Dim output As MedicalViewerSeriesManager = form.LoadJamesHead()

    Return New MedicalViewerCutLineForm(output)
End Function

' This example changes the default window level value by decrease the width by 100. Then resets the images based on the new value.

Public Sub MedicalViewerCutLineExample()
    Dim myForm As MedicalViewerCutLineForm = GetMedicalViewerCutLineControl()
    Dim medicalViewer As MedicalViewer = myForm.Viewer

    myForm.ShowDialog()
End Sub
class MedicalViewerCutLineForm : Form
{
   private MedicalViewer _medicalViewer;
   private MedicalViewerSeriesManager _seriesManager;
   void MedicalViewerCutLineForm_SizeChanged(object sender, EventArgs e)
   {
      _medicalViewer.Size = new Size(this.ClientRectangle.Right, this.ClientRectangle.Bottom);
   }

   public MedicalViewerCutLineForm(MedicalViewerSeriesManager output)
   {
      RasterCodecs _codecs = new RasterCodecs();

      this.SizeChanged += new EventHandler(MedicalViewerCutLineForm_SizeChanged);

      // Create the medical viewer and adjust the size and the location.
      _medicalViewer = new MedicalViewer(1, 2);
      _medicalViewer.Location = new Point(0, 0);
      _medicalViewer.Size = new Size(this.ClientRectangle.Right, this.ClientRectangle.Bottom);

      _seriesManager = output;

      MedicalViewerMultiCell cell = new MedicalViewerMultiCell(null, true, 1, 1);

      int index;
      int count = output.Stacks[0].Items.Count;
      CodecsImageInfo codecsInformation;

      // Get the image information for each frame and send them to the low memory usage function.
      MedicalViewerImageInformation[] imageInformation = new MedicalViewerImageInformation[count];
      for (index = 0; index < count; index++)
      {
         codecsInformation = _codecs.GetInformation((string)(output.Stacks[0].Items[index].Data), true);

         imageInformation[index] = new MedicalViewerImageInformation();
         imageInformation[index].ImageHeight = codecsInformation.Width;
         imageInformation[index].ImageWidth = codecsInformation.Width;
         imageInformation[index].XResolution = codecsInformation.XResolution;
         imageInformation[index].YResolution = codecsInformation.YResolution;
      }

      cell.Data3DRequested += new EventHandler<MedicalViewerData3DRequestedEventArgs>(cell_Data3DRequested);
      cell.Data3DFrameRequested += new EventHandler<MedicalViewer3DFrameRequestedEventArgs>(cell_Data3DFrameRequested);
      cell.FramesRequested +=new EventHandler<MedicalViewerRequestedFramesInformationEventArgs>(cell_FramesRequested);
      FormClosing += new FormClosingEventHandler(MedicalViewerCutLineForm_FormClosing);
      cell.EnableLowMemoryUsage(2, count, imageInformation);

      _medicalViewer.Cells.Add(cell);

      cell.PixelSpacing = output.Stacks[0].PixelSpacing;

      for (index = 0; index < count; index++)
      {
         cell.SetImagePosition(index, output.Stacks[0].Items[index].ImagePosition, (index == count - 1));
      }

      // add some actions that will be used to change the properties of the images inside the control.
      cell.AddAction(MedicalViewerActionType.WindowLevel);
      cell.AddAction(MedicalViewerActionType.Alpha);
      cell.AddAction(MedicalViewerActionType.Offset);

      // assign the added actions to a mouse button, meaning that when the user clicks and drags the mouse button, the associated action will be activated.
      cell.SetAction(MedicalViewerActionType.WindowLevel, MedicalViewerMouseButtons.Left, MedicalViewerActionFlags.Active);
      cell.SetAction(MedicalViewerActionType.Alpha, MedicalViewerMouseButtons.Middle, MedicalViewerActionFlags.Active);
      cell.SetAction(MedicalViewerActionType.Offset, MedicalViewerMouseButtons.Right, MedicalViewerActionFlags.Active);

      // adjust some properties of the cell and add some tags.
      _medicalViewer.Cells[0].SetTag(2, MedicalViewerTagAlignment.TopLeft, MedicalViewerTagType.UserData, "EX. ID 230-36-5448");
      _medicalViewer.Cells[0].SetTag(4, MedicalViewerTagAlignment.TopLeft, MedicalViewerTagType.Frame);
      _medicalViewer.Cells[0].SetTag(6, MedicalViewerTagAlignment.TopLeft, MedicalViewerTagType.Scale);
      _medicalViewer.Cells[0].SetTag(2, MedicalViewerTagAlignment.BottomLeft, MedicalViewerTagType.WindowLevelData);
      _medicalViewer.Cells[0].SetTag(1, MedicalViewerTagAlignment.BottomLeft, MedicalViewerTagType.FieldOfView);

      // Set the image DICOM data
      cell.PixelSpacing = output.Stacks[0].PixelSpacing;

      // Create some cells that will hold the derivative images resulted from the cut-planes.
      MedicalViewerCell singleDerivativeCell = new MedicalViewerCell();
      MedicalViewerCell firstDerivativeCell = new MedicalViewerCell();
      MedicalViewerCell secondDerivativeCell = new MedicalViewerCell();

      cell.DerivativeGenerated +=new EventHandler<MedicalViewerDerivativeGeneratedEventArgs>(cell_DerivativeGenerated);

      // create a single cut-plane and double cut-plane.
      cell.ReferenceLine.CutLines.Add(new MedicalViewerPlaneCutLine(singleDerivativeCell));
      cell.ReferenceLine.DoubleCutLines.Add(new MedicalViewerDoublePlaneCutLine(firstDerivativeCell, secondDerivativeCell));

      _medicalViewer.Cells.Add(singleDerivativeCell);
      _medicalViewer.Cells.Add(firstDerivativeCell);
      _medicalViewer.Cells.Add(secondDerivativeCell);

      Controls.Add(_medicalViewer);
      _medicalViewer.Dock = DockStyle.Fill;
   }

   void MedicalViewerCutLineForm_FormClosing(object sender, FormClosingEventArgs e)
   {
   }

   void cell_Data3DRequested(object sender, MedicalViewerData3DRequestedEventArgs e)
   {
      e.Succeed = Medical3DEngine.Provide3DInformation(e);
   }

   void cell_Data3DFrameRequested(object sender, MedicalViewer3DFrameRequestedEventArgs e)
   {
      RasterCodecs _codecs = new RasterCodecs();
      e.Image = _codecs.Load((string)(_seriesManager.Stacks[0].Items[e.ImageIndex].Data));
      _codecs.Dispose();
   }

   void  cell_DerivativeGenerated(object sender, MedicalViewerDerivativeGeneratedEventArgs e)
   {
      e.DerivativeCell.ShowCellBoundaries = true;
      e.DerivativeCell.ReferenceLine.Enabled = true;
   }

   void  cell_FramesRequested(object sender, MedicalViewerRequestedFramesInformationEventArgs e)
   {
      MedicalViewerMultiCell cell = (MedicalViewerMultiCell)(sender);
      RasterCodecs _codecs = new RasterCodecs();
      int i;
      RasterImage image;
      string fileName;

      if (e.RequestedFramesIndexes.Length > 0)
      {
         fileName = (string)(_seriesManager.Stacks[0].Items[e.RequestedFramesIndexes[0]].Data);
         image = _codecs.Load(fileName);
      }
      else
         return;

      for (i = 1; i < e.RequestedFramesIndexes.Length; i++)
      {
         fileName = (string)(_seriesManager.Stacks[0].Items[e.RequestedFramesIndexes[i]].Data);
         image.AddPage(_codecs.Load(fileName));
      }

      cell.SetRequestedImage(image, e.RequestedFramesIndexes, MedicalViewerSetImageOptions.Insert);
   }

   public MedicalViewer Viewer
   {
      get { return _medicalViewer; }
   }
}

MedicalViewerCutLineForm GetMedicalViewerCutLineControl()
{
   MedicalViewerSeriesManagerFrom form = new MedicalViewerSeriesManagerFrom();
   MedicalViewerSeriesManager output = form.LoadJamesHead();

   return new MedicalViewerCutLineForm(output);
}

// This example changes the default window level value by decrease the width by 100. Then resets the images based on the new value.

public void MedicalViewerCutLineExample()
{
   MedicalViewerCutLineForm myForm = GetMedicalViewerCutLineControl();
   MedicalViewer medicalViewer = myForm.Viewer;

   myForm.ShowDialog();
}
Requirements

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

See Also

Reference

MedicalViewerCell Class
MedicalViewerCell Members

 

 


Products | Support | Contact Us | Copyright Notices

© 2006-2012 All Rights Reserved. LEAD Technologies, Inc.

Leadtools.MedicalViewer requires a Medical Imaging license and unlock key. For more information, refer to: Imaging Pro/Document/Medical Features