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RegionContourPointsCommand Class
See Also  Members   Example 
Leadtools.ImageProcessing.Effects Namespace : RegionContourPointsCommand Class




Gets the contour coordinates of a region.

Syntax

Visual Basic (Declaration) 
Public Class RegionContourPointsCommand 
   Inherits RasterCommand
   Implements IRasterCommand 
Visual Basic (Usage)Copy Code
Dim instance As RegionContourPointsCommand
C# 
public class RegionContourPointsCommand : RasterCommand, IRasterCommand 
Managed Extensions for C++ 
public __gc class RegionContourPointsCommand : public RasterCommand, IRasterCommand 
C++/CLI 
public ref class RegionContourPointsCommand : public RasterCommand, IRasterCommand 

Example

Visual BasicCopy Code
ImageProcessing.Effects.RegionContourPointsCommand
   Public Sub RegionContourPointsCommandExample()
      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)
      Dim command As RegionContourPointsCommand = New RegionContourPointsCommand(Nothing)
      command.Run(leadImage)
      codecs.Save(leadImage, "C:\Program Files\LEAD Technologies\LEADTOOLS 15\Images\Result.jpg", RasterImageFormat.Jpeg, 24)

      RasterCodecs.Shutdown()
   End Sub
C#Copy Code
ImageProcessing.Effects.RegionContourPointsCommand 
      public void RegionContourPointsCommandExample() 
      { 
         // 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); 
         RegionContourPointsCommand command = new RegionContourPointsCommand(null); 
         command.Run(image); 
         codecs.Save(image, @"C:\Program Files\LEAD Technologies\LEADTOOLS 15\Images\Result.jpg", RasterImageFormat.Jpeg, 24); 
 
         RasterCodecs.Shutdown(); 
      }

Remarks

  • This command works only on images having a region. If the 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.

Inheritance Hierarchy

System.Object
   Leadtools.ImageProcessing.RasterCommand
      Leadtools.ImageProcessing.Effects.RegionContourPointsCommand

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