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OffsetCommand Class

Summary

Shifts the image data horizontally and vertically.

Syntax
C#
VB
Java
Objective-C
C++
public class OffsetCommand : RasterCommand 
Public Class OffsetCommand  
   Inherits RasterCommand 
@interface LTOffsetCommand : LTRasterCommand 
public class OffsetCommand extends RasterCommand 
public ref class OffsetCommand : public RasterCommand   

Remarks
  • 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 Applying Artistic Effects.

Example

Run the OffsetCommand on an image.

C#
VB
using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Effects; 
 
public void OffsetCommandExample() 
{ 
   // Load an image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
 
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, @"ImageProcessingDemo\NaturalFruits.jpg")); 
 
   // Prepare the command 
   OffsetCommand command = new OffsetCommand(); 
   command.HorizontalShift = image.Width / 2; 
   command.VerticalShift = image.Height / 2; 
   command.BackColor = new RasterColor(128, 128, 128); 
   command.Type = OffsetCommandType.Color; 
   //Apply offset on the image. 
   command.Run(image); 
   codecs.Save(image, Path.Combine(LEAD_VARS.ImagesDir, "Result.jpg"), RasterImageFormat.Jpeg, 24); 
 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images"; 
} 
Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.ImageProcessing.Effects 
 
Public Sub OffsetCommandExample() 
   Dim codecs As New RasterCodecs() 
   codecs.ThrowExceptionsOnInvalidImages = True 
 
   Dim leadImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "ImageProcessingDemo\\NaturalFruits.jpg")) 
 
   ' Prepare the command 
   Dim command As OffsetCommand = New OffsetCommand 
   command.HorizontalShift = leadImage.Width \ 2 
   command.VerticalShift = leadImage.Height \ 2 
   command.BackColor = New RasterColor(128, 128, 128) 
   command.Type = OffsetCommandType.Color 
   'Apply offset on the image. 
   command.Run(leadImage) 
   codecs.Save(leadImage, Path.Combine(LEAD_VARS.ImagesDir, "Result.jpg"), RasterImageFormat.Jpeg, 24) 
 
End Sub 
 
Public NotInheritable Class LEAD_VARS 
   Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images" 
End Class 
c#[Silverlight C# Example] 
using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Effects; 
using Leadtools.Examples; 
 
public void OffsetCommandExample(RasterImage image, Stream outStream) 
{ 
   // Prepare the command 
   OffsetCommand command = new OffsetCommand(); 
   command.HorizontalShift = image.Width / 2; 
   command.VerticalShift = image.Height / 2; 
   command.BackColor = new RasterColor(128, 128, 128); 
   command.Type = OffsetCommandType.Color; 
   //Apply offset on the image. 
   command.Run(image); 
   // Save result image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.Save(image, outStream, RasterImageFormat.Jpeg, 24); 
   image.Dispose(); 
} 
vb[Silverlight VB Example] 
Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.ImageProcessing.Effects 
 
Public Sub OffsetCommandExample(ByVal image As RasterImage, ByVal outStream As Stream) 
   ' Prepare the command 
   Dim command As OffsetCommand = New OffsetCommand() 
   command.HorizontalShift = image.Width / 2 
   command.VerticalShift = image.Height / 2 
   command.BackColor = New RasterColor(128, 128, 128) 
   command.Type = OffsetCommandType.Color 
   'Apply offset on the image. 
   command.Run(image) 
   ' Save result image 
   Dim codecs As RasterCodecs = New RasterCodecs() 
   codecs.Save(image, outStream, RasterImageFormat.Jpeg, 24) 
   image.Dispose() 
End Sub 

Requirements

Target Platforms

Help Version 20.0.2019.3.11
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Leadtools.ImageProcessing.Effects Assembly