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GetRegionPerimeterLength Method
See Also  Example
Leadtools.ImageProcessing.Effects Namespace > EffectsUtilities Class : GetRegionPerimeterLength Method




image
References the image that contians 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.
Updates the curve array based on a curve or lines that pass through the specified points.

Syntax

Visual Basic (Declaration) 
Public Shared Function GetRegionPerimeterLength( _
   ByVal image As RasterImage, _
   ByVal xForm As RasterRegionXForm _
) As Integer
Visual Basic (Usage)Copy Code
Dim image As RasterImage
Dim xForm As RasterRegionXForm
Dim value As Integer
 
value = EffectsUtilities.GetRegionPerimeterLength(image, xForm)
C# 
public static int GetRegionPerimeterLength( 
   RasterImage image,
   RasterRegionXForm xForm
)
Managed Extensions for C++ 
public: static int GetRegionPerimeterLength( 
   RasterImage image,
   RasterRegionXForm xForm
)
C++/CLI 
public:
static int GetRegionPerimeterLength( 
   RasterImage image,
   RasterRegionXForm xForm
)

Parameters

image
References the image that contians 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.

Example

Visual BasicCopy Code
ImageProcessing.Effects.EffectsUtilities.GetRegionPerimeterLength
   Public Sub GetRegionPerimeterLengthExample()
      RasterCodecs.Startup()
      Dim codecs As New RasterCodecs()
      codecs.ThrowExceptionsOnInvalidImages = True

      Dim leadImage As RasterImage = codecs.Load("C:\Program Files\LEAD Technologies\LEADTOOLS 15\Images\Master.jpg")

      ' Prepare the command
      Dim rcRect As Rectangle = New Rectangle(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)))

      RasterCodecs.Shutdown()
   End Sub
C#Copy Code
ImageProcessing.Effects.EffectsUtilities.GetRegionPerimeterLength 
      public void GetRegionPerimeterLengthExample() 
      { 
         // Load an image 
         RasterCodecs.Startup(); 
         RasterCodecs codecs = new RasterCodecs(); 
         codecs.ThrowExceptionsOnInvalidImages = true; 
 
         RasterImage image = codecs.Load(@"C:\Program Files\LEAD Technologies\LEADTOOLS 15\Images\Master.jpg"); 
 
         // Prepare the command 
         Rectangle rcRect = new Rectangle(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)); 
 
         RasterCodecs.Shutdown(); 
      }

Remarks

  • 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.

Requirements

Target Platforms: Microsoft .NET Framework 2.0, Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family

See Also