MPRPolygonCreated 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 MedicalViewerPolygonCreatedForm : Inherits Form
   Private _medicalViewer As MedicalViewer
   Private _seriesManager As MedicalViewerSeriesManager
   Private Sub MedicalViewer_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)
      DicomEngine.Startup()
      Dim _codecs As RasterCodecs = New RasterCodecs()

      AddHandler SizeChanged, AddressOf MedicalViewer_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

      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.FramesRequested, AddressOf cell_FramesRequested
      AddHandler FormClosing, AddressOf MedicalViewerLocalizer_FormClosing
      cell.EnableLowMemoryUsage(2, count, imageInformation)

      _medicalViewer.Cells.Add(cell)

      ' 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)
      cell.AddAction(MedicalViewerActionType.PanoramicPolygon)

      ' 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.PanoramicPolygon, MedicalViewerMouseButtons.Left, MedicalViewerActionFlags.Active)
      cell.SetAction(MedicalViewerActionType.Alpha, MedicalViewerMouseButtons.Middle, MedicalViewerActionFlags.Active)
      cell.SetAction(MedicalViewerActionType.Offset, MedicalViewerMouseButtons.Right, MedicalViewerActionFlags.Active)

      cell.ReferenceLine.Enabled = True
      cell.ReferenceLine.Color = Color.Yellow
      cell.ShowCellBoundaries = True

      ' 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)

      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
      cell.ImageOrientation = output.Stacks(0).Items(0).ImageOrientationArray
      cell.FrameOfReferenceUID = output.Stacks(0).Items(0).FrameOfReferenceUID

      Dim width As Integer = cell.VirtualImage(cell.ActiveSubCell).Image.Width
      Dim height As Integer = cell.VirtualImage(cell.ActiveSubCell).Image.Height



      Controls.Add(_medicalViewer)
      _medicalViewer.Dock = DockStyle.Fill
      DicomEngine.Shutdown()

      AddHandler cell.MPRPolygonCreated, AddressOf cell_MPRPolygonCreated
      AddHandler cell.PanoramicDataRequested, AddressOf cell_PanoramicDataRequested
      AddHandler cell.MPRPolygonClicked, AddressOf cell_MPRPolygonClicked
      AddHandler cell.Data3DRequested, AddressOf cell_Data3DRequested
      cell.AutoDisposeInternalData = True

   End Sub

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

   Private Sub cell_MPRPolygonCreated(ByVal sender As Object, ByVal e As MedicalViewerMPRPolygonEventsArgs)
      Dim cellSource As MedicalViewerMultiCell = CType(sender, MedicalViewerMultiCell)
      Dim cell As MedicalViewerPanoramicCell = New MedicalViewerPanoramicCell(e.Polygon)

      cell.AddAction(MedicalViewerActionType.WindowLevel)
      cell.AddAction(MedicalViewerActionType.Scale)
      cell.AddAction(MedicalViewerActionType.Offset)
      cell.AddAction(MedicalViewerActionType.Stack)

      cell.SetAction(MedicalViewerActionType.Offset, MedicalViewerMouseButtons.Right, MedicalViewerActionFlags.AllCells Or MedicalViewerActionFlags.RealTime)
      cell.SetAction(MedicalViewerActionType.Stack, MedicalViewerMouseButtons.Wheel, MedicalViewerActionFlags.Active)
      cell.SetAction(MedicalViewerActionType.Scale, MedicalViewerMouseButtons.Middle, MedicalViewerActionFlags.Active)
      _medicalViewer.Cells.Add(cell)

      Dim paraxialCell As MedicalViewerParaxialCutCell = New MedicalViewerParaxialCutCell(e.Polygon, 0)
      paraxialCell.ParaxialDistance = 20
      paraxialCell.ParaxialLength = 200
      _medicalViewer.Cells.Add(paraxialCell)

      cellSource.SetAction(MedicalViewerActionType.WindowLevel, MedicalViewerMouseButtons.Left, MedicalViewerActionFlags.Active)
   End Sub

   Private Sub cell_MPRPolygonClicked(ByVal sender As Object, ByVal e As MedicalViewerMPRPolygonClickedEventsArgs)
      ' get the cell that contains the polygon clicked by the user.
      Dim cell As MedicalViewerMultiCell = CType(sender, MedicalViewerMultiCell)

      ' get paraxial cell.
      Dim paraxialCell As MedicalViewerParaxialCutCell = CType(_medicalViewer.Cells(2), MedicalViewerParaxialCutCell)

      ' if the user clicks on other polygon lines, the paraxial cut will be assigned to that line
      If (e.Button = MouseButtons.Left) AndAlso e.Type = MedicalViewerMPRPolygonHitTest.Body Then
         paraxialCell.PolygonLineIndex = e.Index
      End If
   End Sub


   Private Sub cell_PanoramicDataRequested(ByVal sender As Object, ByVal e As MedicalViewerPanoramicDataRequestedEventArgs)
      Dim cell As MedicalViewerMultiCell = CType(sender, MedicalViewerMultiCell)
      Dim _codecs As RasterCodecs = New RasterCodecs()

      Dim fileName As String = CStr(_seriesManager.Stacks(0).Items(e.FrameIndex).Data)

      e.Frame = _codecs.Load(fileName)
   End Sub

   Private Sub MedicalViewerLocalizer_FormClosing(ByVal sender As Object, ByVal e As FormClosingEventArgs)
   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 GetMedicalViewerPolygonCreatedForm() As MedicalViewerPolygonCreatedForm
   Dim form As MedicalViewerSeriesManagerFrom = New MedicalViewerSeriesManagerFrom()
   Dim output As MedicalViewerSeriesManager = form.LoadJamesHead()

   Return New MedicalViewerPolygonCreatedForm(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 MedicalViewerPolygonCreatedExample()
   Dim myForm As MedicalViewerPolygonCreatedForm = GetMedicalViewerPolygonCreatedForm()
   Dim medicalViewer As MedicalViewer = myForm.Viewer

   MessageBox.Show("Click to draw a polygon using the left mouse click, each click will create a new point, when done double-click")
   myForm.ShowDialog()
End Sub