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LEADTOOLS Image Processing (Leadtools.ImageProcessing.Effects assembly)

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SourcePoint Property (AlphaBlendCommand)








Gets or sets the point structure that contains the origin of the source rectangle.
Syntax
public LeadPoint SourcePoint {get; set;}
'Declaration
 
Public Property SourcePoint As LeadPoint
'Usage
 
Dim instance As AlphaBlendCommand
Dim value As LeadPoint
 
instance.SourcePoint = value
 
value = instance.SourcePoint
public LeadPoint SourcePoint {get; set;}
@property (nonatomic, assign) LeadPoint sourcePoint
public LeadPoint getSourcePoint()
public void setSourcePoint(LeadPoint value)
            
 <br/>get_SourcePoint();<br/>set_SourcePoint(value);<br/>Object.defineProperty('SourcePoint'); 
public:
property LeadPoint SourcePoint {
   LeadPoint get();
   void set (    LeadPoint value);
}

Property Value

LeadPoint structure that contain the origin of the source rectangle. the Width and Height are the same Width and Height for the destination rectangle.
Example

Run the AlphaBlendCommand on an image.

Copy Code  
Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.ImageProcessing.Effects

   
Public Sub SourcePointPropertyExample()
   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 srcImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "ImageProcessingDemo\image3.cmp"), 24, CodecsLoadByteOrder.Bgr, 1, 1)

   Dim Left As Integer = CType((leadImage.Width / 8), Integer)
   Dim Top As Integer = CType((leadImage.Height / 8), Integer)
   Dim Width As Integer = CType((leadImage.Width), Integer)
   Dim Height As Integer = CType((leadImage.Height), Integer)

   ' Combine srcImage with image, with half opacity.
   Dim command As AlphaBlendCommand = New AlphaBlendCommand
   command.DestinationRectangle = New LeadRect(Left, Top, Width, Height)
   command.SourceImage = srcImage
   command.SourcePoint = New LeadPoint(0, 0)
   command.Opacity = 128
   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
using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing.Effects;

      
public void SourcePointPropertyExample()
{
   // Load an image
   RasterCodecs codecs = new RasterCodecs();
   codecs.ThrowExceptionsOnInvalidImages = true;
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Master.jpg"));

   // Prepare the command
   RasterImage srcImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, @"ImageProcessingDemo\Image3.cmp"), 24, CodecsLoadByteOrder.Bgr, 1, 1);

   AlphaBlendCommand command = new AlphaBlendCommand();
   // Combine srcImage with image, with half opacity.
   //command.DestinationRectangle = new LeadRect(image.Width / 2 - srcImage.Width / 2, image.Height / 2 - srcImage.Height / 2, image.Width / 2 + srcImage.Width / 8, image.Height / 2 + srcImage.Height / 8);
   command.DestinationRectangle = new LeadRect(image.Width / 8, image.Height / 8, image.Width, image.Height);
   command.SourceImage = srcImage;
   command.SourcePoint = new LeadPoint(0, 0);
   command.Opacity = 128;
   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";
}
using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing.Effects;
using Leadtools.ImageProcessing;

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

   // Prepare the command
   srcFileName = @"Assets\Image3.cmp";
   loadFile = await Tools.AppInstallFolder.GetFileAsync(srcFileName);
   RasterImage srcImage = await codecs.LoadAsync(LeadStreamFactory.Create(loadFile));

   AlphaBlendCommand command = new AlphaBlendCommand();
   // Combine srcImage with image, with half opacity.
   //command.DestinationRectangle = LeadRectHelper.Create(image.Width / 2 - srcImage.Width / 2, image.Height / 2 - srcImage.Height / 2, image.Width / 2 + srcImage.Width / 8, image.Height / 2 + srcImage.Height / 8);
   command.DestinationRectangle = LeadRectHelper.Create(image.Width / 8, image.Height / 8, image.Width, image.Height);
   command.SourceImage = srcImage;
   command.SourcePoint = LeadPointHelper.Create(0, 0);
   command.Opacity = 128;
   command.Run(image);
   //Save as BMP
   string destFileName = @"result.bmp";
   StorageFile saveFile = await Tools.AppLocalFolder.CreateFileAsync(destFileName);
   await codecs.SaveAsync(image, LeadStreamFactory.Create(saveFile), RasterImageFormat.Bmp, 24);

}
using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing.Effects;
using Leadtools.Examples;

public void SourcePointPropertyExample(RasterImage image, RasterImage srcImage, Stream outStream)
{
   // Prepare the command
   AlphaBlendCommand command = new AlphaBlendCommand();
   // Combine srcImage with image, with half opacity.
   //command.DestinationLeadRect = new LeadRect(image.Width / 2 - srcImage.Width / 2, image.Height / 2 - srcImage.Height / 2, image.Width / 2 + srcImage.Width / 8, image.Height / 2 + srcImage.Height / 8);
   command.DestinationRectangle = new LeadRect(image.Width / 8, image.Height / 8, image.Width, image.Height);
   command.SourceImage = srcImage;
   command.SourcePoint = new LeadPoint(0, 0);
   command.Opacity = 128;
   command.Run(image);
   // Save result image
   RasterCodecs codecs = new RasterCodecs();
   codecs.Save(image, outStream, RasterImageFormat.Jpeg, 24);
   image.Dispose();
   srcImage.Dispose();
}
Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.ImageProcessing.Effects

Public Sub SourcePointPropertyExample(ByVal image As RasterImage, ByVal srcImage As RasterImage, ByVal outStream As Stream)
   ' Prepare the command
   Dim command As AlphaBlendCommand = New AlphaBlendCommand()
   ' Combine srcImage with image, with half opacity.
   'command.DestinationLeadRect = _ 
   ' new LeadRect(image.Width / 2 - srcImage.Width / 2, image.Height / 2 - srcImage.Height / 2, image.Width / 2 + srcImage.Width / 8, image.Height / 2 + srcImage.Height / 8);
   command.DestinationRectangle = New LeadRect(image.Width / 8, image.Height / 8, image.Width, image.Height)
   command.SourceImage = srcImage
   command.SourcePoint = New LeadPoint(0, 0)
   command.Opacity = 128
   command.Run(image)
   ' Save result image
   Dim codecs As RasterCodecs = New RasterCodecs()
   codecs.Save(image, outStream, RasterImageFormat.Jpeg, 24)
   image.Dispose()
   srcImage.Dispose()
End Sub
Requirements

Target Platforms

See Also

Reference

AlphaBlendCommand Class
AlphaBlendCommand Members

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