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LoadRegion Method (MedicalViewerCell)

Summary

Loads regions from a file.

Syntax

C++

public void LoadRegion(  
   string fileName 
)

Public Sub LoadRegion( _ 
   ByVal fileName As String _ 
)

public: 
void LoadRegion(  
   String^ fileName 
)

Parameters

fileName
A string that contains the path to the file that contains the region(s) to load.

Remarks

This method will load the region from the file created by the MedicalViewerMultiCell.SaveRegion method.
If the file contains more than one region, the control will load the new region in the next sub-cell, then it will move to the next cell and load the rest of the regions.
For more information, refer to Working With Regions.

Example

Imports Leadtools 
Imports Leadtools.Drawing 
Imports Leadtools.Codecs 
Imports Leadtools.MedicalViewer 
Imports Leadtools.ImageProcessing 
Imports Leadtools.Annotations.Core 
Imports Leadtools.Annotations.Designers 
Imports Leadtools.Annotations.Rendering 
 
Private Class MedicalViewerForm7 : Inherits Form 
    Private _medicalViewer As MedicalViewer 
    Private Sub MedicalViewerForm_SizeChanged(ByVal sender As Object, ByVal e As EventArgs) 
        _medicalViewer.Size = New Size(Me.ClientRectangle.Right, Me.ClientRectangle.Bottom) 
    End Sub 
 
    Public Sub New() 
        Dim _codecs As RasterCodecs = New RasterCodecs() 
        Dim _image As RasterImage 
 
        AddHandler SizeChanged, AddressOf MedicalViewerForm_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) 
 
        ' Load an image and then add it to the control. 
        _image = _codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "xa.dcm")) 
        Dim cell As MedicalViewerMultiCell = New MedicalViewerMultiCell(_image, True, 1, 1) 
        _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) 
 
        ' 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) 
 
 
        ' Load another image and then add it to the control. 
        _image = _codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "mr.dcm")) 
        _medicalViewer.Cells.Add(New MedicalViewerMultiCell(_image, True, 2, 2)) 
 
        ' add some actions that will be used to change the properties of the images inside the control. 
        _medicalViewer.Cells(1).AddAction(MedicalViewerActionType.WindowLevel) 
        _medicalViewer.Cells(1).AddAction(MedicalViewerActionType.Alpha) 
        _medicalViewer.Cells(1).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. 
        _medicalViewer.Cells(1).SetAction(MedicalViewerActionType.WindowLevel, MedicalViewerMouseButtons.Left, MedicalViewerActionFlags.Active) 
        _medicalViewer.Cells(1).SetAction(MedicalViewerActionType.Alpha, MedicalViewerMouseButtons.Middle, MedicalViewerActionFlags.Active) 
        _medicalViewer.Cells(1).SetAction(MedicalViewerActionType.Offset, MedicalViewerMouseButtons.Right, MedicalViewerActionFlags.Active) 
 
        ' adjust some properties of the cell and add some tags. 
        _medicalViewer.Cells(1).SetTag(2, MedicalViewerTagAlignment.TopLeft, MedicalViewerTagType.UserData, "EX. ID 230-36-5448") 
        _medicalViewer.Cells(1).SetTag(4, MedicalViewerTagAlignment.TopLeft, MedicalViewerTagType.Frame) 
        _medicalViewer.Cells(1).SetTag(6, MedicalViewerTagAlignment.TopLeft, MedicalViewerTagType.Scale) 
        _medicalViewer.Cells(1).SetTag(2, MedicalViewerTagAlignment.BottomLeft, MedicalViewerTagType.WindowLevelData) 
        _medicalViewer.Cells(1).SetTag(1, MedicalViewerTagAlignment.BottomLeft, MedicalViewerTagType.FieldOfView) 
 
 
        Controls.Add(_medicalViewer) 
        _medicalViewer.Dock = DockStyle.Fill 
    End Sub 
    Public ReadOnly Property Viewer() As MedicalViewer 
        Get 
            Return _medicalViewer 
        End Get 
    End Property 
End Class 
Private Function GetMedicalControl7() As MedicalViewerForm7 
    Return New MedicalViewerForm7() 
End Function 
 
' This example will create a bitmap region on the first frame of the first image and save it. 
<TestMethod()> _ 
Public Sub MedicalViewerSaveRegionExample() 
    Dim myForm As MedicalViewerForm7 = GetMedicalControl7() 
    Dim medicalViewer As MedicalViewer = myForm.Viewer 
    Dim cell As MedicalViewerMultiCell = CType(medicalViewer.Cells(0), MedicalViewerMultiCell) 
 
    Dim width As Integer = cell.Image.Width 
    Dim height As Integer = cell.Image.Height 
    Dim centerX As Integer = (width \ 2) 
    Dim centerY As Integer = (height \ 2) 
 
    Dim region As Region = New Region(New Rectangle(centerX - width \ 4, centerY - height \ 4, centerX + width \ 4, centerY + height \ 4)) 
 
    RasterRegionConverter.AddGdiPlusDataToRegion(cell.Image, Nothing, region.GetRegionData(), RasterRegionCombineMode.Set) 
    cell.SaveRegion(Path.Combine(LEAD_VARS.ImagesDir, "Test.rgn")) 
 
    myForm.ShowDialog() 
End Sub 
 
 
Public NotInheritable Class LEAD_VARS 
Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images" 
End Class

using Leadtools; 
using Leadtools.Drawing; 
using Leadtools.Codecs; 
using Leadtools.MedicalViewer; 
using Leadtools.ImageProcessing; 
using Leadtools.Annotations.Core; 
using Leadtools.Annotations.Designers; 
using Leadtools.Annotations.Rendering; 
 
class MedicalViewerForm7 : Form 
{ 
    private MedicalViewer _medicalViewer; 
    void MedicalViewerForm_SizeChanged(object sender, EventArgs e) 
    { 
        _medicalViewer.Size = new Size(this.ClientRectangle.Right, this.ClientRectangle.Bottom); 
    } 
 
    public MedicalViewerForm7() 
    { 
        RasterCodecs _codecs = new RasterCodecs(); 
        RasterImage _image; 
 
        this.SizeChanged += new EventHandler(MedicalViewerForm_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); 
 
        // Load an image and then add it to the control. 
        _image = _codecs.Load(Path.Combine(LEAD_VARS.ImagesDir,"xa.dcm")); 
        MedicalViewerMultiCell cell = new MedicalViewerMultiCell(_image, true, 1, 1); 
        _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); 
 
        // 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); 
 
 
        // Load another image and then add it to the control. 
        _image = _codecs.Load(Path.Combine(LEAD_VARS.ImagesDir,"mr.dcm")); 
        _medicalViewer.Cells.Add(new MedicalViewerMultiCell(_image, true, 2, 2)); 
 
        // add some actions that will be used to change the properties of the images inside the control. 
        _medicalViewer.Cells[1].AddAction(MedicalViewerActionType.WindowLevel); 
        _medicalViewer.Cells[1].AddAction(MedicalViewerActionType.Alpha); 
        _medicalViewer.Cells[1].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. 
        _medicalViewer.Cells[1].SetAction(MedicalViewerActionType.WindowLevel, MedicalViewerMouseButtons.Left, MedicalViewerActionFlags.Active); 
        _medicalViewer.Cells[1].SetAction(MedicalViewerActionType.Alpha, MedicalViewerMouseButtons.Middle, MedicalViewerActionFlags.Active); 
        _medicalViewer.Cells[1].SetAction(MedicalViewerActionType.Offset, MedicalViewerMouseButtons.Right, MedicalViewerActionFlags.Active); 
 
        // adjust some properties of the cell and add some tags. 
        _medicalViewer.Cells[1].SetTag(2, MedicalViewerTagAlignment.TopLeft, MedicalViewerTagType.UserData, "EX. ID 230-36-5448"); 
        _medicalViewer.Cells[1].SetTag(4, MedicalViewerTagAlignment.TopLeft, MedicalViewerTagType.Frame); 
        _medicalViewer.Cells[1].SetTag(6, MedicalViewerTagAlignment.TopLeft, MedicalViewerTagType.Scale); 
        _medicalViewer.Cells[1].SetTag(2, MedicalViewerTagAlignment.BottomLeft, MedicalViewerTagType.WindowLevelData); 
        _medicalViewer.Cells[1].SetTag(1, MedicalViewerTagAlignment.BottomLeft, MedicalViewerTagType.FieldOfView); 
 
 
        Controls.Add(_medicalViewer); 
        _medicalViewer.Dock = DockStyle.Fill; 
    } 
    public MedicalViewer Viewer 
    { 
        get { return _medicalViewer; } 
    } 
} 
MedicalViewerForm7 GetMedicalControl7() 
{ 
    return new MedicalViewerForm7(); 
} 
 
// This example will create a bitmap region on the first frame of the first image and save it. 
public void MedicalViewerSaveRegionExample() 
{ 
    MedicalViewerForm7 myForm = GetMedicalControl7(); 
    MedicalViewer medicalViewer = myForm.Viewer; 
    MedicalViewerMultiCell cell = (MedicalViewerMultiCell)(medicalViewer.Cells[0]); 
 
    int width = cell.Image.Width; 
    int height = cell.Image.Height; 
    int centerX = (width / 2); 
    int centerY = (height / 2); 
 
    Region region = new Region(new Rectangle(centerX - width / 4, centerY - height / 4, centerX + width / 4, centerY + height / 4)); 
 
    RasterRegionConverter.AddGdiPlusDataToRegion(cell.Image, null, region.GetRegionData(), RasterRegionCombineMode.Set); 
    cell.SaveRegion(Path.Combine(LEAD_VARS.ImagesDir,"Out_Test.rgn")); 
 
    myForm.ShowDialog(); 
} 
 
 
static class LEAD_VARS 
{ 
public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images"; 
}