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SourcePoint Property (AlphaBlendCommand)

Summary

Gets or sets the point structure that contains the origin of the source rectangle.

Syntax

Java

Objective-C

WinRT C#

C++

public Leadtools.LeadPoint SourcePoint {get; set;}

Public Property SourcePoint As Leadtools.LeadPoint

public Leadtools.LeadPoint SourcePoint {get; set;}

@property (nonatomic, assign) LeadPoint sourcePoint

public LeadPoint getSourcePoint() 
public void setSourcePoint(LeadPoint value)

get_SourcePoint(); 
set_SourcePoint(value); 
Object.defineProperty('SourcePoint');

public: 
property Leadtools.LeadPoint SourcePoint { 
   Leadtools.LeadPoint get(); 
   void set (    Leadtools.LeadPoint ); 
}

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.

WinRT C#

Silverlight C#

Silverlight VB

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