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

SetOffset(Int32,Double,Double) Method

Example 





A zero-based index of the sub-cell that contains the image that will have its offset changed.
The x coordinates that represents the new position of the image.
The y coordinates that represents the new position of the image.
Translates the image position according to the provided X and Y values.
Syntax
public void SetOffset( 
   int subCellIndex,
   double x,
   double y
)
'Declaration
 
Public Overloads Sub SetOffset( _
   ByVal subCellIndex As Integer, _
   ByVal x As Double, _
   ByVal y As Double _
) 
'Usage
 
Dim instance As MedicalViewerMultiCell
Dim subCellIndex As Integer
Dim x As Double
Dim y As Double
 
instance.SetOffset(subCellIndex, x, y)
public void SetOffset( 
   int subCellIndex,
   double x,
   double y
)
 function Leadtools.MedicalViewer.MedicalViewerMultiCell.SetOffset(Int32,Double,Double)( 
   subCellIndex ,
   x ,
   y 
)
public:
void SetOffset( 
   int subCellIndex,
   double x,
   double y
) 

Parameters

subCellIndex
A zero-based index of the sub-cell that contains the image that will have its offset changed.
x
The x coordinates that represents the new position of the image.
y
The y coordinates that represents the new position of the image.
Remarks
Example
 
Private Class MedicalViewerWindowLevelAndOffsetForm : Inherits Form
    Private _medicalViewer As MedicalViewer
    Private _seriesManager As MedicalViewerSeriesManager
    Private windowLevelWidth As Integer
    Private windowLevelCenter As Integer
    Private offsetX As Double
    Private offsetY As Double


    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)
        cell.FitImageToCell = False

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

        cell.ReferenceLine.Enabled = True
        cell.ReferenceLine.Color = Color.Yellow
        cell.ShowCellBoundaries = True
        AddHandler cell.CellMouseClick, AddressOf cell_ResetCellMouseClick

        _medicalViewer.Cells.Add(cell)
        ' 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

        cell.ScaleType = MedicalViewerScaleType.Dynamic

        cell.ActiveSubCell = cell.PageCount \ 2

        windowLevelWidth = cell.GetWindowLevelWidth(cell.ActiveSubCell)
        windowLevelCenter = cell.GetWindowLevelCenter(cell.ActiveSubCell)
        Dim point As Point2D = cell.GetOffset(cell.ActiveSubCell)
        offsetX = point.X
        offsetY = point.Y


        Controls.Add(_medicalViewer)
        _medicalViewer.Dock = DockStyle.Fill
        DicomEngine.Shutdown()
    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
    Private Sub cell_ResetCellMouseClick(ByVal sender As Object, ByVal e As MedicalViewerCellMouseEventArgs)
        If e.Button = MouseButtons.Middle Then
            Dim cell As MedicalViewerMultiCell = (CType(sender, MedicalViewerMultiCell))

            cell.SetWindowLevel(cell.ActiveSubCell, windowLevelWidth, windowLevelCenter)
            cell.SetOffset(cell.ActiveSubCell, offsetX, offsetY)
        End If
    End Sub

End Class
Private Function GetMedicalViewerWindowLevelAndOffsetForm() As MedicalViewerWindowLevelAndOffsetForm
    MessageBox.Show("Left click to window level. " & Constants.vbLf & " right click to offset " & Constants.vbLf & " middle click to reset")
    Dim form As MedicalViewerSeriesManagerFrom = New MedicalViewerSeriesManagerFrom()
    Dim output As MedicalViewerSeriesManager = form.LoadJamesHead()

    Return New MedicalViewerWindowLevelAndOffsetForm(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 MedicalViewerWindowLevelAndOffsetExample()
    Dim myForm As MedicalViewerWindowLevelAndOffsetForm = GetMedicalViewerWindowLevelAndOffsetForm()
    Dim medicalViewer As MedicalViewer = myForm.Viewer

    myForm.ShowDialog()
End Sub
class MedicalViewerWindowLevelAndOffsetForm : Form
{
   private MedicalViewer _medicalViewer;
   private MedicalViewerSeriesManager _seriesManager;
   private int width;
   private int center;
   private double offsetX;
   private double offsetY;


   void MedicalViewerLocalizer_SizeChanged(object sender, EventArgs e)
   {
      _medicalViewer.Size = new Size(this.ClientRectangle.Right, this.ClientRectangle.Bottom);
   }

   public MedicalViewerWindowLevelAndOffsetForm(MedicalViewerSeriesManager output)
   {
      DicomEngine.Startup();
      RasterCodecs _codecs = new RasterCodecs();

      this.SizeChanged += new EventHandler(MedicalViewerLocalizer_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;

      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.FramesRequested += new EventHandler<MedicalViewerRequestedFramesInformationEventArgs>(cell_FramesRequested);
      FormClosing += new FormClosingEventHandler(MedicalViewerLocalizer_FormClosing);
      cell.EnableLowMemoryUsage(2, count, imageInformation);
      cell.FitImageToCell = false;

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

      cell.ReferenceLine.Enabled = true;
      cell.ReferenceLine.Color = Color.Yellow;
      cell.ShowCellBoundaries = true;
      cell.CellMouseClick += new EventHandler<MedicalViewerCellMouseEventArgs>(cell_ResetCellMouseClick);

      _medicalViewer.Cells.Add(cell);
      // 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;

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

      cell.ScaleType = MedicalViewerScaleType.Dynamic;

      cell.ActiveSubCell = cell.PageCount / 2;

      width = cell.GetWindowLevelWidth(cell.ActiveSubCell);
      center = cell.GetWindowLevelCenter(cell.ActiveSubCell);
      Point2D point = cell.GetOffset(cell.ActiveSubCell);
      offsetX = point.X;
      offsetY = point.Y;


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

   void MedicalViewerLocalizer_FormClosing(object sender, FormClosingEventArgs e)
   {
   }

   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; }
   }
   void cell_ResetCellMouseClick(object sender, MedicalViewerCellMouseEventArgs e)
   {
      if (e.Button == MouseButtons.Middle)
      {
         MedicalViewerMultiCell cell = ((MedicalViewerMultiCell)sender);
         cell.SetWindowLevel(cell.ActiveSubCell, width, center);
         cell.SetOffset(cell.ActiveSubCell, offsetX, offsetY);
      }
   }

}
MedicalViewerWindowLevelAndOffsetForm GetMedicalViewerWindowLevelAndOffsetForm()
{
   MessageBox.Show("Left click to window level. \n right click to offset \n middle click to reset");
   MedicalViewerSeriesManagerFrom form = new MedicalViewerSeriesManagerFrom();
   MedicalViewerSeriesManager output = form.LoadJamesHead();

   return new MedicalViewerWindowLevelAndOffsetForm(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 MedicalViewerWindowLevelAndOffsetExample()
{
   MedicalViewerWindowLevelAndOffsetForm myForm = GetMedicalViewerWindowLevelAndOffsetForm();
   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

MedicalViewerMultiCell Class
MedicalViewerMultiCell Members
Overload List

 

 


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