GetRegionPerimeterLength Method

Visual Basic
C#
WinRT C#
WinRT JavaScript
C++

public static int GetRegionPerimeterLength( 
   RasterImage image,
   RasterRegionXForm xForm
)

'Declaration
 
Public Shared Function GetRegionPerimeterLength( _
   ByVal image As RasterImage, _
   ByVal xForm As RasterRegionXForm _
) As Integer

'Usage
 
Dim image As RasterImage
Dim xForm As RasterRegionXForm
Dim value As Integer
 
value = EffectsUtilities.GetRegionPerimeterLength(image, xForm)

public static int GetRegionPerimeterLength( 
   RasterImage image,
   RasterRegionXForm xForm
)

 function Leadtools.ImageProcessing.Effects.EffectsUtilities.GetRegionPerimeterLength( 
   image ,
   xForm 
)

public:
static int GetRegionPerimeterLength( 
   RasterImage^ image,
   RasterRegionXForm^ xForm
)

Parameters

image: References the image that contains the region.
xForm: RasterRegionXForm object that contains information used to translate between display coordinates and image coordinates. If you specify null in this parameter, the scalar fields default to 1, the offsets default to 0, and the view perspective defaults to the image's view perspective.

Return Value

The perimeter length of the region.

This command works only on images having a region. If an image does not have a region the command returns the error: Not Initialized.
This command supports 12 and 16-bit grayscale and 48 and 64-bit color images. Support for 12 and 16-bit grayscale and 48 and 64-bit color images is available only in the Document/Medical toolkits.

Visual Basic
C#
WinRT C#
WinRT JavaScript
Silverlight C#
Silverlight VB

Public Sub GetRegionPerimeterLengthExample()
   Dim codecs As New RasterCodecs()
   codecs.ThrowExceptionsOnInvalidImages = True

   Dim leadImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Master.jpg"))

   ' Prepare the command
   Dim rcRect As LeadRect = New LeadRect(leadImage.Width \ 3, leadImage.Height \ 3, leadImage.Width * 2 \ 3, leadImage.Height * 2 \ 3)
   leadImage.AddEllipseToRegion(Nothing, rcRect, RasterRegionCombineMode.Set)
   MessageBox.Show("Length = " + Convert.ToString(EffectsUtilities.GetRegionPerimeterLength(leadImage, Nothing)))

End Sub

Public NotInheritable Class LEAD_VARS
   Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images"
End Class

public void GetRegionPerimeterLengthExample()
   {
      // Load an image
      RasterCodecs codecs = new RasterCodecs();
      codecs.ThrowExceptionsOnInvalidImages = true;

      RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Master.jpg"));

      // Prepare the command
      LeadRect rcRect = new LeadRect(image.Width / 3, image.Height / 3, image.Width * 2 / 3, image.Height * 2 / 3);
      image.AddEllipseToRegion(null,rcRect, RasterRegionCombineMode.Set);
      MessageBox.Show("Length = " + EffectsUtilities.GetRegionPerimeterLength(image, null));

   }

static class LEAD_VARS
{
   public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images";
}

//[TestMethod]
//public async Task GetRegionPerimeterLengthExample()
//{
//   // Load an image
//   RasterCodecs codecs = new RasterCodecs();
//   codecs.ThrowExceptionsOnInvalidImages = true;
//   // Load the image
//   string srcFileName = @"Assets\Image1.cmp";
//   StorageFile loadFile = await Tools.AppInstallFolder.GetFileAsync(srcFileName);
//   RasterImage image = await codecs.LoadAsync(LeadStreamFactory.Create(loadFile));

//   // Prepare the command
//   LeadRect rcRect = LeadRectHelper.Create(image.Width / 3, image.Height / 3, image.Width * 2 / 3, image.Height * 2 / 3);
//   image.AddEllipseToRegion(null, rcRect, RasterRegionCombineMode.Set);
//   Debug.WriteLine("Length = " + EffectsUtilities.GetRegionPerimeterLength(image, null));

//}

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

Reference