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DrawStarCommand Class
See Also  Members   Example 
Leadtools.ImageProcessing.SpecialEffects Namespace : DrawStarCommand Class




Draws a star on the image. This command is available in the Raster Pro and above toolkits.

Syntax

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

Example

Visual BasicCopy Code
ImageProcessing.SpecialEffects.DrawStarCommand
   Public Sub DrawStarCommandExample()
      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 command As DrawStarCommand = New DrawStarCommand
      command.CenterPoint = New Point(leadImage.Width \ 2, leadImage.Height \ 2)
      command.Spoke = 5
      command.StarWidth = leadImage.Width \ 2
      command.StarHeight = leadImage.Height \ 2
      command.HoleSize = 50
      command.Phase = 0
      command.Angle = 0
      command.DistanceOpacity = 0
      command.SpokeDivision = 0
      command.AngleOpacity = 0
      command.BorderOpacity = 0
      command.LowerColorFill = New RasterColor(255, 0, 0)
      command.UpperColorFill = New RasterColor(0, 0, 255)
      command.Opacity = 100
      command.Flags = DrawStarCommandFlags.Inside

      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.SpecialEffects.DrawStarCommand 
      public void DrawStarCommandExample() 
      { 
         // 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 
         DrawStarCommand command = new DrawStarCommand(); 
 
         command.CenterPoint     = new Point(image.Width/2, image.Height/2); 
         command.Spoke           = 5; 
         command.StarWidth       = image.Width/2; 
         command.StarHeight      = image.Height/2; 
         command.HoleSize        = 50; 
         command.Phase           = 0; 
         command.Angle           = 0; 
         command.DistanceOpacity = 0; 
         command.SpokeDivision   = 0; 
         command.AngleOpacity    = 0; 
         command.BorderOpacity   = 0; 
         command.LowerColorFill  = new RasterColor(255, 0, 0); 
         command.UpperColorFill  = new RasterColor(0, 0, 255); 
         command.Opacity         = 100; 
         command.Flags           = DrawStarCommandFlags.Inside; 
 
         command.Run(image); 
         codecs.Save(image, @"C:\Program Files\LEAD Technologies\LEADTOOLS 15\Images\Result.jpg", RasterImageFormat.Jpeg, 24); 
 
         RasterCodecs.Shutdown(); 
      }

Remarks

  • If the image has a region, the effect will be applied on the region only.
  • 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.
  • This command does not support signed data images.
  • This command does not support 32-bit grayscale images.
For more information, refer to Correcting Colors.

Inheritance Hierarchy

System.Object
   Leadtools.ImageProcessing.RasterCommand
      Leadtools.ImageProcessing.SpecialEffects.DrawStarCommand

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