SetImagePosition Method

Summary
Sets the image position of the cell frames based on the corresponding index.
Syntax
C#
C++/CLI
public void SetImagePosition( 
   int subCellIndex, 
   Point3D imagePosition, 
   bool update 
) 
            public: 
void SetImagePosition(  
   int subCellIndex, 
   Point3D imagePosition, 
   bool update 
)  

Parameters

subCellIndex
A zero-based index of the sub-cell.

imagePosition
The image position to be set.

update
true to update the cell data based on the newly inserted image position.

Remarks
  • The image position can be retrieved from the DicomDataSet.
  • for efficiency purposes, it is recommended not to set the 3rd parameter update to true in case of multi frame cell until the user sets the last image position, otherwise, the program will keep recalculating the internal data each time the user sets a the image position for each frame.
Example
C#
using Leadtools; 
using Leadtools.Dicom; 
using Leadtools.Medical3D; 
using Leadtools.Codecs; 
using Leadtools.MedicalViewer; 
using Leadtools.ImageProcessing; 
using Leadtools.ImageProcessing.Core; 
using Leadtools.ImageProcessing.Color; 
using Leadtools.Annotations.Engine; 
using Leadtools.Annotations.Designers; 
 
class MedicalViewerLocalizer : Form 
{ 
   private MedicalViewer _medicalViewer; 
   private MedicalViewerSeriesManager _seriesManager; 
 
   void MedicalViewerLocalizer_SizeChanged(object sender, EventArgs e) 
   { 
      _medicalViewer.Size = new Size(this.ClientRectangle.Right, this.ClientRectangle.Bottom); 
   } 
 
   public MedicalViewerLocalizer(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); 
 
      _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); 
 
      // 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); 
 
      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; 
 
      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 = new MedicalViewerMultiCell(); 
      DicomDataSet ds = new DicomDataSet(); 
      ds.Load(@"\\pc202\readwritefolder\DICOM Dataset\DICOM Volume datasets" + "\\Miller James-CT Head full Study\\0023\\20345460", DicomDataSetLoadFlags.None); 
      DicomElement patientElement = null; 
 
      patientElement = ds.FindFirstElement(null, 
                                           DicomTag.ImagePositionPatient, 
                                           true); 
 
      double[] doubleArray = ds.GetDoubleValue(patientElement, 0, 3); 
 
      cell.SetImagePosition(0, Point3D.FromDoubleArray(doubleArray), true); 
 
      patientElement = ds.FindFirstElement(null, 
                                          DicomTag.FrameOfReferenceUID, 
                                          true); 
 
      string referenceUID = ds.GetConvertValue(patientElement); 
 
      cell.FrameOfReferenceUID = referenceUID; 
 
      patientElement = ds.FindFirstElement(null, 
                                          DicomTag.ImageOrientationPatient, 
                                          true); 
 
      doubleArray = ds.GetDoubleValue(patientElement, 0, 6); 
 
      cell.ImageOrientation = new float[] {(float)doubleArray[0], (float)doubleArray[1], (float)doubleArray[2], (float)doubleArray[3], (float)doubleArray[4], (float)doubleArray[5]}; 
 
      patientElement = ds.FindFirstElement(null, 
                                           DicomTag.PixelSpacing, 
                                           true); 
 
      doubleArray = ds.GetDoubleValue(patientElement, 0, 2); 
      cell.PixelSpacing = new Point2D((float)doubleArray[0], (float)doubleArray[1]); 
 
      cell.ReferenceLine.Enabled = true; 
      cell.ReferenceLine.Color = Color.LightBlue; 
      cell.ShowCellBoundaries = true; 
      cell.Image = ds.GetImage(null, 0, 0, RasterByteOrder.Gray, DicomGetImageFlags.AutoApplyVoiLut | DicomGetImageFlags.AutoApplyModalityLut | DicomGetImageFlags.AllowRangeExpansion); 
      _medicalViewer.Cells.Add(cell); 
      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; } 
   } 
} 
 
MedicalViewerLocalizer GetMedicalViewerLocalizerControl() 
{ 
   MedicalViewerSeriesManagerFrom form = new MedicalViewerSeriesManagerFrom(); 
   MedicalViewerSeriesManager output = form.LoadJamesHead(); 
 
   return new MedicalViewerLocalizer(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 MedicalViewerLocalizerExample() 
{ 
   MedicalViewerLocalizer myForm = GetMedicalViewerLocalizerControl(); 
   MedicalViewer medicalViewer = myForm.Viewer; 
 
   myForm.ShowDialog(); 
} 
Requirements

Target Platforms

Help Version 23.0.2024.2.29
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Leadtools.MedicalViewer Assembly

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© 1991-2023 LEAD Technologies, Inc. All Rights Reserved.