FlipRegion Method

Flips the image region (top to bottom).

Syntax

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

public void FlipRegion()

'Declaration
 
Public Sub FlipRegion()

'Usage
 
Dim instance As RasterImage
 
instance.FlipRegion()

public void FlipRegion()

 function Leadtools.RasterImage.FlipRegion()

public:
void FlipRegion();

Example

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

Public Sub FlipRegionExample()
      Dim codecs As RasterCodecs = New RasterCodecs()

      Dim srcFileName As String = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp")
      Dim destFileName1 As String = Path.Combine(LEAD_VARS.ImagesDir, "Image1_OriginalRegion.bmp")
      Dim destFileName2 As String = Path.Combine(LEAD_VARS.ImagesDir, "Image1_OffsetRegion.bmp")
      Dim destFileName3 As String = Path.Combine(LEAD_VARS.ImagesDir, "Image1_FlipRegion.bmp")
      Dim destFileName4 As String = Path.Combine(LEAD_VARS.ImagesDir, "Image1_ReverseRegion.bmp")

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

      ' Add an ellipse inside a rectangle region to the image

      Dim rc As LeadRect = New LeadRect(0, 0, image.Width \ 3, image.Height \ 6)
      image.AddEllipseToRegion(Nothing, rc, RasterRegionCombineMode.Set)

      ' Clone this image and run an image proccesing command on it
      Dim command As InvertCommand = New InvertCommand()

      Dim imageWithRegion As RasterImage = image.Clone()
      command.Run(imageWithRegion)
      codecs.Save(imageWithRegion, destFileName1, RasterImageFormat.Bmp, 24)
      imageWithRegion.Dispose()

      ' Offset the region
      image.OffsetRegion(100, 50)
      imageWithRegion = image.Clone()
      command.Run(imageWithRegion)
      codecs.Save(imageWithRegion, destFileName2, RasterImageFormat.Bmp, 24)
      imageWithRegion.Dispose()

      ' Flip the region
      image.FlipRegion()
      imageWithRegion = image.Clone()
      command.Run(imageWithRegion)
      codecs.Save(imageWithRegion, destFileName3, RasterImageFormat.Bmp, 24)
      imageWithRegion.Dispose()

      ' Reverse the region
      image.ReverseRegion()
      imageWithRegion = image.Clone()
      command.Run(imageWithRegion)
      codecs.Save(imageWithRegion, destFileName4, RasterImageFormat.Bmp, 24)
      imageWithRegion.Dispose()

      image.Dispose()
      codecs.Dispose()
   End Sub

Public NotInheritable Class LEAD_VARS
   Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images"
End Class

public void FlipRegionExample()
   {
      RasterCodecs codecs = new RasterCodecs();

      string srcFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp");
      string destFileName1 = Path.Combine(LEAD_VARS.ImagesDir, "Image1_OriginalRegion.bmp");
      string destFileName2 = Path.Combine(LEAD_VARS.ImagesDir, "Image1_OffsetRegion.bmp");
      string destFileName3 = Path.Combine(LEAD_VARS.ImagesDir, "Image1_FlipRegion.bmp");
      string destFileName4 = Path.Combine(LEAD_VARS.ImagesDir, "Image1_ReverseRegion.bmp");

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

      // Add an ellipse inside a rectangle region to the image

      LeadRect rc = new LeadRect(0, 0, image.Width / 3, image.Height / 6);
      image.AddEllipseToRegion(null, rc, RasterRegionCombineMode.Set);

      // Clone this image and run an image proccesing command on it
      InvertCommand command = new InvertCommand();

      RasterImage imageWithRegion = image.Clone();
      command.Run(imageWithRegion);
      codecs.Save(imageWithRegion, destFileName1, RasterImageFormat.Bmp, 24);
      imageWithRegion.Dispose();

      // Offset the region
      image.OffsetRegion(100, 50);
      imageWithRegion = image.Clone();
      command.Run(imageWithRegion);
      codecs.Save(imageWithRegion, destFileName2, RasterImageFormat.Bmp, 24);
      imageWithRegion.Dispose();

      // Flip the region
      image.FlipRegion();
      imageWithRegion = image.Clone();
      command.Run(imageWithRegion);
      codecs.Save(imageWithRegion, destFileName3, RasterImageFormat.Bmp, 24);
      imageWithRegion.Dispose();

      // Reverse the region
      image.ReverseRegion();
      imageWithRegion = image.Clone();
      command.Run(imageWithRegion);
      codecs.Save(imageWithRegion, destFileName4, RasterImageFormat.Bmp, 24);
      imageWithRegion.Dispose();

      image.Dispose();
      codecs.Dispose();
   }

static class LEAD_VARS
{
   public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images";
}

RasterImageExamples.prototype.FlipRegionExample = function ( ) 
{
   Tools.SetLicense ( ) ;
   with (Leadtools) {
      with (Leadtools.Codecs) {
         var codecs = new RasterCodecs();

         var srcFileName = "Assets\\Image1.cmp";
         var destFileName1 = "Image1_OriginalRegion.bmp";
         var destFileName2 = "Image1_OffsetRegion.bmp";
         var destFileName3 = "Image1_FlipRegion.bmp";
         var destFileName4 = "Image1_ReverseRegion.bmp";
         var image;
         var imageWithRegion;
         var command = new Leadtools.ImageProcessing.Color.InvertCommand();
         // Load the image
         return Tools.AppInstallFolder().getFileAsync(srcFileName).then(function (loadFile) {
            return codecs.loadAsync(LeadStreamFactory.create(loadFile))
         })
      .then(function (img) {
         image = img;

         // Add an ellipse inside a rectangle region to the image

         var rc = LeadRectHelper.create(0, 0, image.width / 3, image.height / 6);
         image.addEllipseToRegion(null, rc, RasterRegionCombineMode.set);

         // Clone this image and run an image proccesing command on it
         imageWithRegion = image.clone();
         command.run(imageWithRegion);
         return Tools.AppLocalFolder().createFileAsync(destFileName1)
      })
            .then(function (saveFile) {
               var saveStream = LeadStreamFactory.create(saveFile);
               return codecs.saveAsync(image, saveStream, RasterImageFormat.bmp, 24)
            })
            .then(function () {
               imageWithRegion.close();

               // Offset the region
               image.offsetRegion(100, 50);
               imageWithRegion = image.clone();

               command.run(imageWithRegion);
               return Tools.AppLocalFolder().createFileAsync(destFileName2)
            })
            .then(function (saveFile) {
               saveStream = LeadStreamFactory.create(saveFile);
               return codecs.saveAsync(image, saveStream, RasterImageFormat.bmp, 24)
            })
            .then(function () {
               imageWithRegion.close();

               // Flip the region
               image.flipRegion();
               imageWithRegion = image.clone();
               command.run(imageWithRegion);
               return Tools.AppLocalFolder().createFileAsync(destFileName3)
            })
            .then(function (saveFile) {
               var saveStream = LeadStreamFactory.create(saveFile);
               return codecs.saveAsync(image, saveStream, RasterImageFormat.bmp, 24)
            })
            .then(function () {
               imageWithRegion.close();

               // Reverse the region
               image.reverseRegion();
               imageWithRegion = image.clone();
               command.run(imageWithRegion);
               return Tools.AppLocalFolder().createFileAsync(destFileName4)
            })
            .then(function (saveFile) {
               saveStream = LeadStreamFactory.create(saveFile);
               return codecs.saveAsync(image, saveStream, RasterImageFormat.bmp, 24)
            })
            .then(function () {
               imageWithRegion.close();

               image.close();
               codecs.close();
            });
      }
   }
}

[TestMethod]
public async Task FlipRegionExample()
{
   RasterCodecs codecs = new RasterCodecs();
   string srcFileName = @"Assets\Image1.cmp";
   string destFileName1 = @"Image1_OriginalRegion.bmp";
   string destFileName2 = @"Image1_OffsetRegion.bmp";
   string destFileName3 = @"Image1_FlipRegion.bmp";
   string destFileName4 = @"Image1_ReverseRegion.bmp";

   // Load the image
   StorageFile loadFile = await Tools.AppInstallFolder.GetFileAsync(srcFileName);
   RasterImage image = await codecs.LoadAsync(LeadStreamFactory.Create(loadFile));

   // Add an ellipse inside a rectangle region to the image

   LeadRect rc = LeadRectHelper.Create(0, 0, image.Width / 3, image.Height / 6);
   image.AddEllipseToRegion(null, rc, RasterRegionCombineMode.Set);

   // Clone this image and run an image proccesing command on it
   InvertCommand command = new InvertCommand();

   RasterImage imageWithRegion = image.Clone();
   command.Run(imageWithRegion);
   StorageFile saveFile = await Tools.AppLocalFolder.CreateFileAsync(destFileName1);
   ILeadStream saveStream = LeadStreamFactory.Create(saveFile);
   await codecs.SaveAsync(image, saveStream, RasterImageFormat.Bmp, 24);
   imageWithRegion.Dispose();

   // Offset the region
   image.OffsetRegion(100, 50);
   imageWithRegion = image.Clone();
   command.Run(imageWithRegion);
   saveFile = await Tools.AppLocalFolder.CreateFileAsync(destFileName2);
   saveStream = LeadStreamFactory.Create(saveFile);
   await codecs.SaveAsync(image, saveStream, RasterImageFormat.Bmp, 24);
   imageWithRegion.Dispose();

   // Flip the region
   image.FlipRegion();
   imageWithRegion = image.Clone();
   command.Run(imageWithRegion);
   saveFile = await Tools.AppLocalFolder.CreateFileAsync(destFileName3);
   saveStream = LeadStreamFactory.Create(saveFile);
   await codecs.SaveAsync(image, saveStream, RasterImageFormat.Bmp, 24);
   imageWithRegion.Dispose();

   // Reverse the region
   image.ReverseRegion();
   imageWithRegion = image.Clone();
   command.Run(imageWithRegion);
   saveFile = await Tools.AppLocalFolder.CreateFileAsync(destFileName4);
   saveStream = LeadStreamFactory.Create(saveFile);
   await codecs.SaveAsync(image, saveStream, RasterImageFormat.Bmp, 24);
   imageWithRegion.Dispose();

   image.Dispose();
   codecs.Dispose();
}

public void FlipRegionExample(RasterImage image, Stream destStream1, Stream destStream2, Stream destStream3, Stream destStream4)
{
   // Add a rectangle region to the image
   LeadRect rc = new LeadRect(0, 0, image.Width / 3, image.Height / 6);
   image.AddRectangleToRegion(null, rc, RasterRegionCombineMode.Set);

   using (IsolatedStorageFile isf = IsolatedStorageFile.GetUserStoreForApplication())
   {
      // Clone this image and run an image proccesing command on it
      InvertCommand command = new InvertCommand();

      RasterCodecs codecs = new RasterCodecs();
      RasterImage imageWithRegion = image.Clone();
      command.Run(imageWithRegion);
      codecs.Save(image, destStream1, RasterImageFormat.Bmp, 0);
      imageWithRegion.Dispose();

      // Offset the region
      image.OffsetRegion(100, 50);
      imageWithRegion = image.Clone();
      command.Run(imageWithRegion);
      codecs.Save(image, destStream2, RasterImageFormat.Bmp, 0);
      imageWithRegion.Dispose();

      // Flip the region
      image.FlipRegion();
      imageWithRegion = image.Clone();
      command.Run(imageWithRegion);
      codecs.Save(image, destStream3, RasterImageFormat.Bmp, 0);
      imageWithRegion.Dispose();

      // Reverse the region
      image.ReverseRegion();
      imageWithRegion = image.Clone();
      command.Run(imageWithRegion);
      codecs.Save(image, destStream4, RasterImageFormat.Bmp, 0);
      imageWithRegion.Dispose();

      image.Dispose();
   }
}

Public Sub FlipRegionExample(ByVal image As RasterImage, ByVal destStream1 As Stream, ByVal destStream2 As Stream, ByVal destStream3 As Stream, ByVal destStream4 As Stream)
   ' Add a rectangle region to the image
   Dim rc As LeadRect = New LeadRect(0, 0, image.Width / 3, image.Height / 6)
   image.AddRectangleToRegion(Nothing, rc, RasterRegionCombineMode.Set)

   Using isf As IsolatedStorageFile = IsolatedStorageFile.GetUserStoreForApplication()
      ' Clone this image and run an image proccesing command on it
      Dim command As InvertCommand = New InvertCommand()

      Dim codecs As RasterCodecs = New RasterCodecs()
      Dim imageWithRegion As RasterImage = image.Clone()
      command.Run(imageWithRegion)
      codecs.Save(image, destStream1, RasterImageFormat.Bmp, 0)
      imageWithRegion.Dispose()

      ' Offset the region
      image.OffsetRegion(100, 50)
      imageWithRegion = image.Clone()
      command.Run(imageWithRegion)
      codecs.Save(image, destStream2, RasterImageFormat.Bmp, 0)
      imageWithRegion.Dispose()

      ' Flip the region
      image.FlipRegion()
      imageWithRegion = image.Clone()
      command.Run(imageWithRegion)
      codecs.Save(image, destStream3, RasterImageFormat.Bmp, 0)
      imageWithRegion.Dispose()

      ' Reverse the region
      image.ReverseRegion()
      imageWithRegion = image.Clone()
      command.Run(imageWithRegion)
      codecs.Save(image, destStream4, RasterImageFormat.Bmp, 0)
      imageWithRegion.Dispose()

      image.Dispose()
   End Using
End Sub

Requirements

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

RasterImage Class
RasterImage Members