TunnelCommand Class

Visual Basic
C#
WinRT C#
WinRT JavaScript
C++

public class TunnelCommand : Leadtools.ImageProcessing.RasterCommand, Leadtools.ImageProcessing.IRasterCommand

'Declaration
 
Public Class TunnelCommand 
   Inherits Leadtools.ImageProcessing.RasterCommand
   Implements Leadtools.ImageProcessing.IRasterCommand

'Usage
 
Dim instance As TunnelCommand

public sealed class TunnelCommand : Leadtools.ImageProcessing.IRasterCommand

function Leadtools.ImageProcessing.SpecialEffects.TunnelCommand()

public ref class TunnelCommand : public Leadtools.ImageProcessing.RasterCommand, Leadtools.ImageProcessing.IRasterCommand

This command shows the effect of placing images on tunnels along the Z-axis and bending them toward a specific point. These images may be placed above, below, to the left or to the right of the Z-axis. An external light source of the specified color and brightness may be shined on the images. The brightness may vary along the z-axis according to the BrightLength value.
Changing the camera center point, the rotation angle and the viewing screen Z-offset will simulate moving along the axis.
If the image has a region, the effect will be applied on the region dimensions only.
For an example, see the following figure:

The following figure shows the same image, after the effect has been applied:

To obtain this effect, the following settings were used with the command:
1. CenterPoint = new Leadtools.LeadPoint(320, 256)
2. ZValue = 0
3. Distance = 200
4. Radius = 200
5. Repeat = -1
6. RotationOffset = 75
7. Stretch = 25
8. StartBright = 0
9. EndBright = 100
10. BrightLength = 45
11. BrightColor = new Leadtools.RasterColor(255, 255, 255)
12. FillColor = new Leadtools.RasterColor(255, 255, 255)
13. Flags = TunnelCommandFlags.WidthAxis | TunnelCommandFlags.Color
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 Introduction to Image Processing With LEADTOOLS.
For more information, refer to Correcting Colors.

Visual Basic
C#
WinRT C#
WinRT JavaScript
Silverlight C#
Silverlight VB

Public Sub TunnelCommandExample()
   Dim codecs As New RasterCodecs()
   codecs.ThrowExceptionsOnInvalidImages = True

   Dim leadImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Master.jpg"))

   ' Prepare the command
   Dim command As TunnelCommand = New TunnelCommand
   command.CenterPoint = New LeadPoint(leadImage.Width \ 2, leadImage.Height \ 2)
   command.ZValue = 0
   command.Distance = leadImage.Height
   command.Radius = leadImage.Width \ 2
   command.Repeat = -1
   command.RotationOffset = 0
   command.Stretch = 25
   command.StartBright = 0
   command.EndBright = 100
   command.BrightLength = 20000
   command.BrightColor = New RasterColor(255, 255, 255)
   command.FillColor = New RasterColor(0, 0, 0)
   command.Flags = TunnelCommandFlags.WidthAxis Or TunnelCommandFlags.Color
   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

public void TunnelCommandExample()
   {
      // Load an image
      RasterCodecs codecs = new RasterCodecs();
      codecs.ThrowExceptionsOnInvalidImages = true;

      RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Master.jpg"));

      // Prepare the command
      TunnelCommand command = new  TunnelCommand();
      command.CenterPoint = new LeadPoint(image.Width / 2, image.Height / 2);
      command.ZValue = 0;
      command.Distance = image.Height;
      command.Radius = image.Width / 2;
      command.Repeat = -1;
      command.RotationOffset = 0;
      command.Stretch = 25;
      command.StartBright = 0;
      command.EndBright = 100;
      command.BrightLength = 20000;
      command.BrightColor = new RasterColor(255, 255, 255);
      command.FillColor = new RasterColor(0, 0, 0);
      command.Flags =  TunnelCommandFlags.WidthAxis |  TunnelCommandFlags.Color;
      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";
}

[TestMethod]
public async Task TunnelCommandExample()
{
   // Load an image
   RasterCodecs codecs = new RasterCodecs();
   codecs.ThrowExceptionsOnInvalidImages = true;
   string srcFileName = @"Assets\Image1.cmp";
   StorageFile loadFile = await Tools.AppInstallFolder.GetFileAsync(srcFileName);
   RasterImage image = await codecs.LoadAsync(LeadStreamFactory.Create(loadFile));

   // Prepare the command
   TunnelCommand command = new  TunnelCommand();
   command.CenterPoint = LeadPointHelper.Create(image.Width / 2, image.Height / 2);
   command.ZValue = 0;
   command.Distance = image.Height;
   command.Radius = image.Width / 2;
   command.Repeat = -1;
   command.RotationOffset = 0;
   command.Stretch = 25;
   command.StartBright = 0;
   command.EndBright = 100;
   command.BrightLength = 20000;
   command.BrightColor = RasterColorHelper.Create(255, 255, 255);
   command.FillColor = RasterColorHelper.Create(0, 0, 0);
   command.Flags =  TunnelCommandFlags.WidthAxis |  TunnelCommandFlags.Color;
   command.Run(image);

   string destFileName = @"result.bmp";
   StorageFile saveFile = await Tools.AppLocalFolder.CreateFileAsync(destFileName);
   await codecs.SaveAsync(image, LeadStreamFactory.Create(saveFile), RasterImageFormat.Bmp, 24);
}

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference