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Using The Slab to Adjust The 3D Object Tutorial

This tutorial teaches you how to to use the slab feature with a 3D object and three MPR orthogonal slices (Axial, Sagittal and Coronal).

  1. Start with the project you created in Creating a 3D object with MPR view.
  2. Run the program and you should see four cells: One for the 3D object and the other three for Axial, Sagittal and Coronal cells.
  3. This tutorial attains similar results to Creating a 3D object with MPR view but without the cross-hair. To remove the cross-hair, we need to edit the InitClass() method to set the ShowMPRCrossHair Property of all cells to false.


    [Visual Basic] 
                axialCell.ShowMPRCrossHair = false
            coronalCell.ShowMPRCrossHair = false
            sagittalCell.ShowMPRCrossHair = false
    [C#] 
                axialCell.ShowMPRCrossHair = false;
            coronalCell.ShowMPRCrossHair = false;
            sagittalCell.ShowMPRCrossHair = false;
  4. Enable the slab property by adding the following line at the end of the method InitClass()


    [Visual Basic] 
                control3D.ObjectsContainer.Objects(0).Slab.Enabled = True
    [C#] 
                control3D.ObjectsContainer.Objects[0].Slab.Enabled = true;

  5. The InitClass() method should look as follows:
    [Visual Basic]

                Private Sub InitClass()
                 RasterSupport.Unlock(RasterSupportType.Dicom, " Your Dicom Key")
                 RasterSupport.Unlock(RasterSupportType.Medical, "Your Medical Key")
                 RasterSupport.Unlock(RasterSupportType.Medical3d, "Your Medical 3D Key")
                 
                 ' Create a new instance of the Codecs class, which will be used to load the images.
                 Dim _codecs As RasterCodecs = New RasterCodecs()
                 ' Create a new instance of the Medical Viewer. The layout will be divided to 2X2.
                 Dim viewer As MedicalViewer = New MedicalViewer(2, 2)
                 ' Fit the view to the whole form
                 viewer.Dock = DockStyle.Fill
                 ' Create the 3D control that will hold the 3D object.
                 Dim control3D As Medical3DControl = New Medical3DControl()
                 control3D.AddAction(MedicalViewerActionType.WindowLevel)
                 control3D.SetAction(MedicalViewerActionType.WindowLevel, MedicalViewerMouseButtons.Left, MedicalViewerActionFlags.Active)
                 Dim object3D As Medical3DObject = New Medical3DObject()
                 ' Add the newly created 3D object to the control.
                 control3D.ObjectsContainer.Objects.Add(object3D)
                 object3D.Image = _codecs.Load("C:\Users\Public\Documents\LEADTOOLS Images\image1.dcm")
                 ' Add the cell above to the MedicalViewer.
                 viewer.Cells.Add(control3D)
                 Controls.Add(viewer)
                 
                 ' Create a new cell that will hold the axial frame.
                 Dim axialCell As MedicalViewerMPRCell = New MedicalViewerMPRCell()
                 ' adjust some properties to view the cross hair.
                 axialCell.ShowMPRCrossHair = False
                 axialCell.DistinguishMPRByColor = True
                 
                 ' Assign this cell (axialCell) to the AxialFrame property of the Medical 3D control
                 control3D.AxialFrame = axialCell
                 
                 ' add the axial cell to the viewer
                 viewer.Cells.Add(axialCell)
                 
                 ' Create a new cell that will hold the coronal frame.
                 Dim coronalCell As MedicalViewerMPRCell = New MedicalViewerMPRCell()
                 
                 ' adjust some properties to view the cross hair.
                 coronalCell.ShowMPRCrossHair = False
                 coronalCell.DistinguishMPRByColor = True
                 
                 ' Assign this cell (coronalCell) to the CoronalFrame property of the Medical 3D control
                 control3D.CoronalFrame = coronalCell
                 
                 viewer.Cells.Add(coronalCell)
                 
                 ' Create a new cell that will hold the sagittal frame.
                 Dim sagittalCell As MedicalViewerMPRCell = New MedicalViewerMPRCell()
                 
                 ' adjust some properties to view the cross hair.
                 sagittalCell.ShowMPRCrossHair = False
                 sagittalCell.DistinguishMPRByColor = True
                 
                 ' Assign this cell (sagittalCell) to the SagittalFrame property of the Medical 3D control
                 control3D.SagittalFrame = sagittalCell
                 
                 viewer.Cells.Add(sagittalCell)
                 
                 ' Add the viewer as a child to the form.
                 Me.Controls.Add(viewer)
                 
                 control3D.ObjectsContainer.Objects(0).Slab.Enabled = True
    [C#] 
                void InitClass()
            {
                 RasterSupport.Unlock(RasterSupportType.Dicom, " Your Dicom Key");
                 RasterSupport.Unlock(RasterSupportType.Medical, "Your Medical Key");
                 RasterSupport.Unlock(RasterSupportType.Medical3d, "Your Medical 3D Key");
                 
                 // Create a new instance of the Codecs class, which will be used to load the images.
                 RasterCodecs _codecs = new RasterCodecs();
                 // Create a new instance of the Medical Viewer. The layout will be divided to 2X2.
                 MedicalViewer viewer = new MedicalViewer(2, 2);
                 // Fit the view to the whole form
                 viewer.Dock = DockStyle.Fill;
                 // Create the 3D control that will hold the 3D object.
                 Medical3DControl control3D = new Medical3DControl();
                 control3D.AddAction(MedicalViewerActionType.WindowLevel);
                 control3D.SetAction(MedicalViewerActionType.WindowLevel, MedicalViewerMouseButtons.Left, MedicalViewerActionFlags.Active);
                 Medical3DObject object3D = new Medical3DObject();
                 // Add the newly created 3D object to the control.
                 control3D.ObjectsContainer.Objects.Add(object3D);
                 object3D.Image = _codecs.Load(@"C:\Users\Public\Documents\LEADTOOLS Images\image1.dcm");
                 // Add the cell above to the MedicalViewer.
                 viewer.Cells.Add(control3D);
                 Controls.Add(viewer);
                 
                 // Create a new cell that will hold the axial frame.
                 MedicalViewerMPRCell axialCell = new MedicalViewerMPRCell();
                 // adjust some properties to view the cross hair.
                 axialCell.ShowMPRCrossHair = false;
                 axialCell.DistinguishMPRByColor = true;
                 
                 // Assign this cell (axialCell) to the AxialFrame property of the Medical 3D control
                 control3D.AxialFrame = axialCell;
                 
                 // add the axial cell to the viewer
                 viewer.Cells.Add(axialCell);
                 
                 // Create a new cell that will hold the coronal frame.
                 MedicalViewerMPRCell coronalCell = new MedicalViewerMPRCell();
                 
                 // adjust some properties to view the cross hair.
                 coronalCell.ShowMPRCrossHair = false;
                 coronalCell.DistinguishMPRByColor = true;
                 
                 // Assign this cell (coronalCell) to the CoronalFrame property of the Medical 3D control
                 control3D.CoronalFrame = coronalCell;
                 
                 viewer.Cells.Add(coronalCell);
                 
                 // Create a new cell that will hold the sagittal frame.
                 MedicalViewerMPRCell sagittalCell = new MedicalViewerMPRCell();
                 
                 // adjust some properties to view the cross hair.
                 sagittalCell.ShowMPRCrossHair = false;
                 sagittalCell.DistinguishMPRByColor = true;
                 
                 // Assign this cell (sagittalCell) to the SagittalFrame property of the Medical 3D control
                 control3D.SagittalFrame = sagittalCell;
                 
                 viewer.Cells.Add(sagittalCell);
                 
                 // Add the viewer as a child to the form.
                 this.Controls.Add(viewer);
                 
                 control3D.ObjectsContainer.Objects[0].Slab.Enabled = true;
            }

  6. Run the program and you should see four windows: One for the 3D object and the other three for the orthogonal frames. There should be a green dotted line surrounding the three orthogonal plane cells. Resize the rectangle by clicking-and- dragging the green border.

    Note: To view higher quality images, we provide DICOMDIR sample files which can be downloaded from here. For more information on building 3D objects from a DICOMDIR, please see Loading a DICOMDIR To Create a 3D Object.