Error processing SSI file
LEADTOOLS WPF and Silverlight (Leadtools.Windows.Media assembly)
Show in webframe

RasterRegionConverter Class






Members 
Leadtools.Windows.Media Namespace : RasterRegionConverter Class
Converts between a LEADTOOLS Leadtools.RasterRegion and Windows Presentation Foundation (WPF) or Silverlight System.Windows.Media.Geometry objects.
Object Model
Syntax
public static class RasterRegionConverter 
'Declaration
 
Public MustInherit NotInheritable Class RasterRegionConverter 
'Usage
 
Dim instance As RasterRegionConverter

            

        

            

            

            

        

            

            
public ref class RasterRegionConverter abstract sealed 

            

        

            

        

            
            
            
            
Remarks
This class lets you easily convert between a LEADTOOLS Leadtools.RasterRegion object and a WPF/Silverlight System.Windows.Media.Geometry object.



The LEADTOOLS Leadtools.RasterRegion class provides a platform independent representation of an area of interest in a Leadtools.RasterImage that can be used in any platform supported by LEADTOOLS such as GDI, GDI+, WPF and Silverlight. Use this class To convert a LEADTOOLS Leadtools.RasterRegion object to/from a WPF/Silverlight System.Windows.Media.Geometry object.



For more information refer to RasterImage and WPF/Silverlight.


            
            
Example

    

            
            

            Copy Code
                
            

            

    

     

            
Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.ImageProcessing
Imports Leadtools.Windows.Media

<TestMethod()> _
Public Sub RasterRegionConverterExample()
   ' Load an image 
   Dim srcFileName As String = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp")
   Dim dstFileName1 As String = Path.Combine(LEAD_VARS.ImagesDir, "Image1_Ellipse.jpg")
   Dim dstFileName2 As String = Path.Combine(LEAD_VARS.ImagesDir, "Image1_EllipseTranslated.jpg")
   Dim codecs As New RasterCodecs()

   Dim image As RasterImage = codecs.Load(srcFileName)

   ' We will add an ellipse region to the image

   ' Using WPF, create an elliptical geometry
   ' Create the ellipse geometry to add to the Path
   Dim ellipseGeometry As New EllipseGeometry()
   ellipseGeometry.Center = New Point(250, 250)
   ellipseGeometry.RadiusX = 200
   ellipseGeometry.RadiusY = 150

   Dim geometry As Geometry = ellipseGeometry

   ' Create a RasterRegion from this region
   Using region As RasterRegion = RasterRegionConverter.ConvertFromGeometry(geometry)
      ' Add this region to the image
      image.SetRegion(Nothing, region, RasterRegionCombineMode.Set)
   End Using

   ' Fill the image with a color
   Dim cmd As New FillCommand(RasterColor.FromKnownColor(RasterKnownColor.Red))
   cmd.Run(image)

   ' Save it
   codecs.Save(image, dstFileName1, RasterImageFormat.Jpeg, 24)

   ' Now get the WPF geometry from the image
   Using region As RasterRegion = image.GetRegion(Nothing)
      geometry = RasterRegionConverter.ConvertToGeometry(region, Nothing)
   End Using

   ' Move the geometry 100 pixels to the right and bottom
   geometry.Transform = New TranslateTransform(100, 100)

   ' Re-set it into the image, fill again and save
   ' Create a RasterRegion from this region
   Using region As RasterRegion = RasterRegionConverter.ConvertFromGeometry(geometry)
      ' Add this region to the image
      image.SetRegion(Nothing, region, RasterRegionCombineMode.Set)
   End Using

   ' Fill the image with a color
   cmd = New FillCommand(RasterColor.FromKnownColor(RasterKnownColor.Yellow))
   cmd.Run(image)

   ' Save it
   codecs.Save(image, dstFileName2, RasterImageFormat.Jpeg, 24)

   image.Dispose()

   codecs.Dispose()
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;
using Leadtools.Windows.Media;

[TestMethod]
public void RasterRegionConverterExample()
{
   // Load an image 
   string srcFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp");
   string dstFileName1 = Path.Combine(LEAD_VARS.ImagesDir, "Image1_Ellipse.jpg");
   string dstFileName2 = Path.Combine(LEAD_VARS.ImagesDir,"Image1_EllipseTranslated.jpg");
   RasterCodecs codecs = new RasterCodecs();

   RasterImage image = codecs.Load(srcFileName);

   // We will add an ellipse region to the image

   // Using WPF, create an elliptical geometry
   // Create the ellipse geometry to add to the Path
   EllipseGeometry ellipseGeometry = new EllipseGeometry();
   ellipseGeometry.Center = new Point(250, 250);
   ellipseGeometry.RadiusX = 200;
   ellipseGeometry.RadiusY = 150;

   Geometry geometry = ellipseGeometry;

   // Create a RasterRegion from this region
   using(RasterRegion region = RasterRegionConverter.ConvertFromGeometry(geometry))
   {
      // Add this region to the image
      image.SetRegion(null, region, RasterRegionCombineMode.Set);
   }

   // Fill the image with a color
   FillCommand cmd = new FillCommand(RasterColor.FromKnownColor(RasterKnownColor.Red));
   cmd.Run(image);

   // Save it
   codecs.Save(image, dstFileName1, RasterImageFormat.Jpeg, 24);

   // Now get the WPF geometry from the image
   using(RasterRegion region = image.GetRegion(null))
   {
      geometry = RasterRegionConverter.ConvertToGeometry(region, null);
   }

   // Move the geometry 100 pixels to the right and bottom
   geometry.Transform = new TranslateTransform(100, 100);

   // Re-set it into the image, fill again and save
   // Create a RasterRegion from this region
   using(RasterRegion region = RasterRegionConverter.ConvertFromGeometry(geometry))
   {
      // Add this region to the image
      image.SetRegion(null, region, RasterRegionCombineMode.Set);
   }

   // Fill the image with a color
   cmd = new FillCommand(RasterColor.FromKnownColor(RasterKnownColor.Yellow));
   cmd.Run(image);

   // Save it
   codecs.Save(image, dstFileName2, RasterImageFormat.Jpeg, 24);

   image.Dispose();

   codecs.Dispose();
}

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

            

   

     

            
using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing;
using Leadtools.Windows.Media;

public void RasterRegionConverterExample()
{
   // Load an image 
   string srcFileName = LeadtoolsExamples.Common.ImagesPath.Path + "Image1.cmp";

   RasterCodecs codecs = new RasterCodecs();

   RasterImage image = codecs.Load(srcFileName);

   // We will add a region to the image
   RasterRegion region = new RasterRegion(new LeadRect(250, 250, 200, 150));
   image.SetRegion(null, region, RasterRegionCombineMode.Set);

   // Now get the WPF geometry from the image
   Geometry geometry;
   using(RasterRegion rgn = image.GetRegion(null))
   {
      geometry = RasterRegionConverter.ConvertToGeometry(region, null);

      // Create a Path to be drawn to the screen.
      System.Windows.Shapes.Path myPath = new System.Windows.Shapes.Path();
      SolidColorBrush mySolidColorBrush = new SolidColorBrush();
      mySolidColorBrush.Color = Color.FromArgb(255, 204, 204, 255);
      myPath.Fill = mySolidColorBrush;
      myPath.Data = geometry;

      // Add path shape to the UI.
      StackPanel mainPanel = new StackPanel();
      mainPanel.Children.Add(myPath);
   }

   image.Dispose();
}

            

   

     

            
Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.ImageProcessing
Imports Leadtools.Windows.Media

<TestMethod> _
Public Sub RasterRegionConverterExample()
   ' Load an image 
   Dim srcFileName As String = LeadtoolsExamples.Common.ImagesPath.Path & "Image1.cmp"
   Dim codecs As RasterCodecs = New RasterCodecs()

   Dim image As RasterImage = codecs.Load(srcFileName)

   ' We will add a region to the image
   Dim region As RasterRegion = New RasterRegion(New LeadRect(250, 250, 200, 150))
   image.SetRegion(Nothing, region, RasterRegionCombineMode.Set)

   ' Now get the WPF geometry from the image
   Dim geometry As Geometry
   Using rgn As RasterRegion = image.GetRegion(Nothing)
      geometry = RasterRegionConverter.ConvertToGeometry(region, Nothing)

      ' Create a Path to be drawn to the screen.
      Dim myPath As System.Windows.Shapes.Path = New System.Windows.Shapes.Path()
      Dim mySolidColorBrush As SolidColorBrush = New SolidColorBrush()
      mySolidColorBrush.Color = Color.FromArgb(255, 204, 204, 255)
      myPath.Fill = mySolidColorBrush
      myPath.Data = geometry

      ' Add path shape to the UI.
      Dim mainPanel As StackPanel = New StackPanel()
      mainPanel.Children.Add(myPath)
   End Using

   image.Dispose()
End Sub

            

   

      
	
      
	
    

            
           
            
Requirements
Target Platforms

            
            
See Also
Reference
RasterRegionConverter Members

Leadtools.Windows.Media Namespace




        
    

	
    

	Error processing SSI file