GetRegionPerimeterLength Method

C#
Visual Basic
WinRT C#
Java
Objective-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.

Run the GetRegionPerimeterLength method on an image.

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

Copy Code

Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.ImageProcessing
Imports Leadtools.ImageProcessing.Color
Imports Leadtools.ImageProcessing.Effects

   
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

using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing;
using Leadtools.ImageProcessing.Effects;
using Leadtools.ImageProcessing.Color;

      
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";
}

using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing.Effects;
using Leadtools.ImageProcessing;
using Leadtools.ImageProcessing.Color;

//
//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

Reference