Data3DFrameRequested Event

Imports Leadtools
Imports Leadtools.Dicom
Imports Leadtools.Medical3D
Imports Leadtools.Codecs
Imports Leadtools.MedicalViewer
Imports Leadtools.Annotations.Core
Imports Leadtools.Annotations.Designers
Imports Leadtools.ImageProcessing.Core

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.
<TestMethod()> _
Public Sub MedicalViewerCutLineExample()
   Dim myForm As MedicalViewerCutLineForm = GetMedicalViewerCutLineControl()
   Dim medicalViewer As MedicalViewer = myForm.Viewer

   myForm.ShowDialog()
End Sub