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ColorHalftoneCommandBitmapEffect Class
See Also  Members   Example 
Leadtools.Windows.Media.Effects.Effects Namespace : ColorHalftoneCommandBitmapEffect Class





Shows the effect of using an enlarged halftone screen on each image channel. The filter divides the image into rectangles and replaces each rectangle with circles. Each channel has a separate grid of circles, and has its own angle setting. The size of each circle is proportional to the brightness of the rectangle that it is replacing. This method is available in LEADTOOLS Document and Medical Imaging toolkits.

Syntax

Visual Basic (Declaration) 
Public Class ColorHalftoneCommandBitmapEffect 
   Inherits RasterCommandBitmapEffect
Visual Basic (Usage)Copy Code
Dim instance As ColorHalftoneCommandBitmapEffect
C# 
public class ColorHalftoneCommandBitmapEffect : RasterCommandBitmapEffect
Managed Extensions for C++ 
public __gc class ColorHalftoneCommandBitmapEffect : public RasterCommandBitmapEffect
C++/CLI 
public ref class ColorHalftoneCommandBitmapEffect : public RasterCommandBitmapEffect
XAML Property Element Usage 

ColorHalftoneCommandBitmapEffect ...

Example

Visual BasicCopy Code
Public Sub ColorHalftoneCommandBitmapEffectExample(ByVal element As FrameworkElement)

   ' Initialize Effect
   Dim effect As ColorHalftoneCommandBitmapEffect = New ColorHalftoneCommandBitmapEffect()
   effect.MaximumRadius = 2
   effect.CyanAngle = 10800
   effect.MagentaAngle = 16200
   effect.YellowAngle = 9000
   effect.BlackAngle = 4500
   element.BitmapEffect = effect

   ' Initialize Animations
   Dim animation1 As Int32Animation = New Int32Animation()
   animation1.From = -36000
   animation1.To = 36000
   animation1.By = 1
   animation1.Duration = New Duration(TimeSpan.FromSeconds(1.0))
   animation1.AutoReverse = True
   animation1.RepeatBehavior = RepeatBehavior.Forever
   Dim animation2 As Int32Animation = New Int32Animation()
   animation2.From = -36000
   animation2.To = 36000
   animation2.By = 1
   animation2.Duration = New Duration(TimeSpan.FromSeconds(2.0))
   animation2.AutoReverse = True
   animation2.RepeatBehavior = RepeatBehavior.Forever
   Dim animation3 As Int32Animation = New Int32Animation()
   animation3.From = -36000
   animation3.To = 36000
   animation3.By = 1
   animation3.Duration = New Duration(TimeSpan.FromSeconds(3.0))
   animation3.AutoReverse = True
   animation3.RepeatBehavior = RepeatBehavior.Forever
   Dim animation4 As Int32Animation = New Int32Animation()
   animation4.From = -36000
   animation4.To = 36000
   animation4.By = 1
   animation4.Duration = New Duration(TimeSpan.FromSeconds(4.0))
   animation4.AutoReverse = True
   animation4.RepeatBehavior = RepeatBehavior.Forever
   Dim animation5 As Int32Animation = New Int32Animation()
   animation5.From = 5
   animation5.To = 20
   animation5.By = 1
   animation5.Duration = New Duration(TimeSpan.FromSeconds(5.0))
   animation5.AutoReverse = True
   animation5.RepeatBehavior = RepeatBehavior.Forever

   ' Initialize and run Storyboard
   Dim storyboard As Storyboard = New Storyboard()
   storyboard.SetTargetName(animation1, "AnimatedBitmapEffect")
   storyboard.SetTargetProperty(animation1, New PropertyPath(ColorHalftoneCommandBitmapEffect.BlackAngleProperty))
   element.RegisterName("AnimatedBitmapEffect", effect)
   storyboard.Children.Add(animation1)
   storyboard.SetTargetName(animation2, "AnimatedBitmapEffect")
   storyboard.SetTargetProperty(animation2, New PropertyPath(ColorHalftoneCommandBitmapEffect.CyanAngleProperty))
   element.RegisterName("AnimatedBitmapEffect", effect)
   storyboard.Children.Add(animation2)
   storyboard.SetTargetName(animation3, "AnimatedBitmapEffect")
   storyboard.SetTargetProperty(animation3, New PropertyPath(ColorHalftoneCommandBitmapEffect.MagentaAngleProperty))
   element.RegisterName("AnimatedBitmapEffect", effect)
   storyboard.Children.Add(animation3)
   storyboard.SetTargetName(animation4, "AnimatedBitmapEffect")
   storyboard.SetTargetProperty(animation4, New PropertyPath(ColorHalftoneCommandBitmapEffect.YellowAngleProperty))
   element.RegisterName("AnimatedBitmapEffect", effect)
   storyboard.Children.Add(animation4)
   storyboard.SetTargetName(animation5, "AnimatedBitmapEffect")
   storyboard.SetTargetProperty(animation5, New PropertyPath(ColorHalftoneCommandBitmapEffect.MaximumRadiusProperty))
   element.RegisterName("AnimatedBitmapEffect", effect)
   storyboard.Children.Add(animation5)

   storyboard.Begin(element)
End Sub
C#Copy Code
public void ColorHalftoneCommandBitmapEffectExample(FrameworkElement element) 
{ 
 
   // Initialize Effect 
   ColorHalftoneCommandBitmapEffect effect = new ColorHalftoneCommandBitmapEffect(); 
   effect.MaximumRadius = 2; 
   effect.CyanAngle = 10800; 
   effect.MagentaAngle = 16200; 
   effect.YellowAngle = 9000; 
   effect.BlackAngle = 4500; 
   element.BitmapEffect = effect; 
 
   // Initialize Animations 
   Int32Animation animation1 = new Int32Animation(); 
   animation1.From = -36000; 
   animation1.To = 36000; 
   animation1.By = 1; 
   animation1.Duration = new Duration(TimeSpan.FromSeconds(1.0)); 
   animation1.AutoReverse = true; 
   animation1.RepeatBehavior = RepeatBehavior.Forever; 
   Int32Animation animation2 = new Int32Animation(); 
   animation2.From = -36000; 
   animation2.To = 36000; 
   animation2.By = 1; 
   animation2.Duration = new Duration(TimeSpan.FromSeconds(2.0)); 
   animation2.AutoReverse = true; 
   animation2.RepeatBehavior = RepeatBehavior.Forever; 
   Int32Animation animation3 = new Int32Animation(); 
   animation3.From = -36000; 
   animation3.To = 36000; 
   animation3.By = 1; 
   animation3.Duration = new Duration(TimeSpan.FromSeconds(3.0)); 
   animation3.AutoReverse = true; 
   animation3.RepeatBehavior = RepeatBehavior.Forever; 
   Int32Animation animation4 = new Int32Animation(); 
   animation4.From = -36000; 
   animation4.To = 36000; 
   animation4.By = 1; 
   animation4.Duration = new Duration(TimeSpan.FromSeconds(4.0)); 
   animation4.AutoReverse = true; 
   animation4.RepeatBehavior = RepeatBehavior.Forever; 
   Int32Animation animation5 = new Int32Animation(); 
   animation5.From = 5; 
   animation5.To = 20; 
   animation5.By = 1; 
   animation5.Duration = new Duration(TimeSpan.FromSeconds(5.0)); 
   animation5.AutoReverse = true; 
   animation5.RepeatBehavior = RepeatBehavior.Forever; 
 
   // Initialize and run Storyboard 
   Storyboard storyboard = new Storyboard(); 
   Storyboard.SetTargetName(animation1, "AnimatedBitmapEffect"); 
   Storyboard.SetTargetProperty(animation1, new PropertyPath(ColorHalftoneCommandBitmapEffect.BlackAngleProperty)); 
   element.RegisterName("AnimatedBitmapEffect", effect); 
   storyboard.Children.Add(animation1); 
   Storyboard.SetTargetName(animation2, "AnimatedBitmapEffect"); 
   Storyboard.SetTargetProperty(animation2, new PropertyPath(ColorHalftoneCommandBitmapEffect.CyanAngleProperty)); 
   element.RegisterName("AnimatedBitmapEffect", effect); 
   storyboard.Children.Add(animation2); 
   Storyboard.SetTargetName(animation3, "AnimatedBitmapEffect"); 
   Storyboard.SetTargetProperty(animation3, new PropertyPath(ColorHalftoneCommandBitmapEffect.MagentaAngleProperty)); 
   element.RegisterName("AnimatedBitmapEffect", effect); 
   storyboard.Children.Add(animation3); 
   Storyboard.SetTargetName(animation4, "AnimatedBitmapEffect"); 
   Storyboard.SetTargetProperty(animation4, new PropertyPath(ColorHalftoneCommandBitmapEffect.YellowAngleProperty)); 
   element.RegisterName("AnimatedBitmapEffect", effect); 
   storyboard.Children.Add(animation4); 
   Storyboard.SetTargetName(animation5, "AnimatedBitmapEffect"); 
   Storyboard.SetTargetProperty(animation5, new PropertyPath(ColorHalftoneCommandBitmapEffect.MaximumRadiusProperty)); 
   element.RegisterName("AnimatedBitmapEffect", effect); 
   storyboard.Children.Add(animation5); 
 
   storyboard.Begin(element); 
}
XAMLCopy Code
<Page Title="CSAnimateEffect" Height="391" Width="300" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:lteffects="clr-namespace:Leadtools.Windows.Media.Effects.Effects;assembly=Leadtools.Windows.Media.Effects"> 
  <Grid> 
    <Image Margin="10,10,10,10" HorizontalAlignment="Center" VerticalAlignment="Center" Source="C:\Program Files\LEAD Technologies, Inc\LEADTOOLS 15\Images\slave.jpg"> 
      <Image.BitmapEffect> 
        <lteffects:ColorHalftoneCommandBitmapEffect x:Name="MyBitmapEffect" /> 
      </Image.BitmapEffect> 
      <Image.Triggers> 
        <EventTrigger RoutedEvent="Image.Loaded"> 
          <BeginStoryboard> 
            <Storyboard> 
              <Int32Animation Storyboard.TargetName="MyBitmapEffect" Storyboard.TargetProperty="BlackAngle" From="-36000" To="36000" Duration="0:0:1" RepeatBehavior="Forever" AutoReverse="True" /> 
              <Int32Animation Storyboard.TargetName="MyBitmapEffect" Storyboard.TargetProperty="CyanAngle" From="-36000" To="36000" Duration="0:0:2" RepeatBehavior="Forever" AutoReverse="True" /> 
              <Int32Animation Storyboard.TargetName="MyBitmapEffect" Storyboard.TargetProperty="MagentaAngle" From="-36000" To="36000" Duration="0:0:3" RepeatBehavior="Forever" AutoReverse="True" /> 
              <Int32Animation Storyboard.TargetName="MyBitmapEffect" Storyboard.TargetProperty="YellowAngle" From="-36000" To="36000" Duration="0:0:4" RepeatBehavior="Forever" AutoReverse="True" /> 
              <Int32Animation Storyboard.TargetName="MyBitmapEffect" Storyboard.TargetProperty="MaximumRadius" From="5" To="20" Duration="0:0:5" RepeatBehavior="Forever" AutoReverse="True" /> 
            </Storyboard> 
          </BeginStoryboard> 
        </EventTrigger> 
      </Image.Triggers> 
    </Image> 
  </Grid> 
</Page>

Remarks

  • This method does not support signed data images.

Inheritance Hierarchy

System.Object
   System.Windows.Threading.DispatcherObject
      System.Windows.DependencyObject
         System.Windows.Freezable
            System.Windows.Media.Animation.Animatable
               System.Windows.Media.Effects.BitmapEffect
                  Leadtools.Windows.Media.Effects.RasterCommandBitmapEffect
                     Leadtools.Windows.Media.Effects.Effects.ColorHalftoneCommandBitmapEffect

Requirements

Target Platforms: Microsoft .NET Framework 3.0, Windows XP, Windows Vista, and Windows Server 2003

See Also