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ShearCommand Class
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Leadtools.ImageProcessing Namespace : ShearCommand Class



Moves the corners of an image in the fashion of a parallelogram. Supported in Silverlight, Windows Phone 7

Object Model

ShearCommand ClassRasterColor Structure

Syntax

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

Example

This example shears the image 15 degrees vertically, filling extra space with blue.

Visual BasicCopy Code
Public Sub ShearCommandExample()
      Dim codecs As RasterCodecs = New RasterCodecs()

      Dim srcFileName As String = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp")
      Dim destFileName As String = Path.Combine(LEAD_VARS.ImagesDir, "ShearCommand.bmp")

      ' Load the source image from disk
      Dim image As RasterImage = codecs.Load(srcFileName)

      ' Shear the image 15 degrees vertically
      Dim command As ShearCommand = New ShearCommand()
      command.Angle = -15 * 100
      command.FillColor = New RasterColor(255, 255, 255)
      command.Horizontal = False
      command.Run(image)

      ' Save the image back to disk
      codecs.Save(image, destFileName, RasterImageFormat.Bmp, 32)

      ' Clean Up
      image.Dispose()
   End Sub

Public NotInheritable Class LEAD_VARS
   Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images"
End Class
C#Copy Code
public void ShearCommandExample()
   {
      RasterCodecs codecs = new RasterCodecs();

      string srcFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp");
      string destFileName = Path.Combine(LEAD_VARS.ImagesDir, "ShearCommand.bmp");

      // Load the source image from disk
      RasterImage image = codecs.Load(srcFileName);

      // Shear the image 15 degrees vertically
      ShearCommand command = new ShearCommand();
      command.Angle = -15 * 100;
      command.FillColor = new RasterColor(255, 255, 255);
      command.Horizontal = false;
      command.Run(image);

      // Save the image back to disk
      codecs.Save(image, destFileName, RasterImageFormat.Bmp, 32);

      // Clean Up
      image.Dispose();
   }

static class LEAD_VARS
{
   public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images";
}
SilverlightCSharpCopy Code
public void ShearCommandExample(RasterImage image, Stream destStream)
{
   RasterCodecs codecs = new RasterCodecs();
   // Shear the image 15 degrees vertically
   ShearCommand command = new ShearCommand();
   command.Angle = -15 * 100;
   command.FillColor = new RasterColor(255, 255, 255);
   command.Horizontal = false;
   command.Run(image);

   // Save the image back to disk
   codecs.Save(image, destStream, RasterImageFormat.Bmp, 32);

   // Clean Up
   image.Dispose();
}
SilverlightVBCopy Code
Public Sub ShearCommandExample(ByVal image As RasterImage, ByVal destStream As Stream)
   Dim codecs As RasterCodecs = New RasterCodecs()
   ' Shear the image 15 degrees vertically
   Dim command As ShearCommand = New ShearCommand()
   command.Angle = -15 * 100
   command.FillColor = New RasterColor(255, 255, 255)
   command.Horizontal = False
   command.Run(image)

   ' Save the image back to disk
   codecs.Save(image, destStream, RasterImageFormat.Bmp, 32)

   ' Clean Up
   image.Dispose()
End Sub

Remarks

You specify an angle of slant, horizontal or vertical shear, and the fill color for the created space. The following is a horizontal example:

The angle is expressed in hundredths of degrees, with a limit of 4500 (45 degrees).

For more information, refer to Introduction to Image Processing With LEADTOOLS.

Inheritance Hierarchy

System.Object
   Leadtools.ImageProcessing.RasterCommand
      Leadtools.ImageProcessing.ShearCommand

Requirements

Target Platforms: Silverlight, Windows XP, Windows Server 2003 family, Windows Server 2008 family, Windows Vista, Windows 7, MAC OS/X (Intel Only), Windows Phone 7

See Also