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





Re-maps the image colors according to a mathematical function such as: square, logarithm, square root, sine and cosine.

Syntax

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

MathematicalFunctionCommandBitmapEffect ...

XAML Property Element Usage 

MathematicalFunctionCommandBitmapEffect ...

Example

Run the MathematicalFunctionCommandBitmapEffect on an image with square function selected and factor = 50.

Visual BasicCopy Code
Public Sub MathematicalFunctionCommandBitmapEffectExample(ByVal element As FrameworkElement)
   Dim effect As MathematicalFunctionCommandBitmapEffect = New MathematicalFunctionCommandBitmapEffect()
   effect.Factor = 50
   effect.Type = MathematicalFunctionCommandBitmapEffectsType.Square
   element.BitmapEffect = effect

   Dim storyboard As Storyboard = New Storyboard()

   Dim animation1 As Int32Animation = New Int32Animation()
   animation1.From = 1
   animation1.To = 25
   animation1.Duration = New Duration(TimeSpan.Parse("0:0:5"))
   animation1.RepeatBehavior = RepeatBehavior.Forever
   animation1.AutoReverse = True

   storyboard.SetTargetName(animation1, "AnimatedBitmapEffect")
   storyboard.SetTargetProperty(animation1, New PropertyPath(MathematicalFunctionCommandBitmapEffect.FactorProperty))
   element.RegisterName("AnimatedBitmapEffect", effect)
   storyboard.Children.Add(animation1)

   storyboard.Begin(element)
End Sub
C#Copy Code
public void MathematicalFunctionCommandBitmapEffectExample(FrameworkElement element) 
{ 
   MathematicalFunctionCommandBitmapEffect effect = new MathematicalFunctionCommandBitmapEffect(); 
   effect.Type = MathematicalFunctionCommandBitmapEffectsType.Square; 
   effect.Factor = 50; 
   element.BitmapEffect = effect; 
 
   Storyboard storyboard = new Storyboard(); 
 
   Int32Animation animation1 = new Int32Animation(); 
   animation1.From = 1; 
   animation1.To = 25; 
   animation1.Duration = new Duration(TimeSpan.Parse("0:0:5")); 
   animation1.RepeatBehavior = RepeatBehavior.Forever; 
   animation1.AutoReverse = true; 
 
   Storyboard.SetTargetName(animation1, "AnimatedBitmapEffect"); 
   Storyboard.SetTargetProperty(animation1, new PropertyPath(MathematicalFunctionCommandBitmapEffect.FactorProperty)); 
   element.RegisterName("AnimatedBitmapEffect", effect); 
   storyboard.Children.Add(animation1); 
 
   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.Color;assembly=Leadtools.Windows.Media.Effects"> 
  <Grid> 
    <Image Margin="10,10,10,10" HorizontalAlignment="Center" VerticalAlignment="Center" Source="C:\Program Files\LEAD Technologies, Inc\LEADTOOLS 16\Images\slave.jpg"> 
      <Image.BitmapEffect> 
        <lteffects:MathematicalFunctionCommandBitmapEffect x:Name="AnimatedBitmapEffect" Factor="0" Type="Sine" /> 
      </Image.BitmapEffect> 
      <Image.Triggers> 
        <EventTrigger RoutedEvent="Image.Loaded"> 
          <BeginStoryboard> 
            <Storyboard> 
              <Int32Animation Storyboard.TargetName="AnimatedBitmapEffect" Storyboard.TargetProperty="Factor" From="1" To="25" Duration="0:0:5" RepeatBehavior="Forever" AutoReverse="True" /> 
            </Storyboard> 
          </BeginStoryboard> 
        </EventTrigger> 
      </Image.Triggers> 
    </Image> 
  </Grid> 
</Page>

Remarks

  • This class uses the RGB color space.
  • This class makes it possible to apply one of five mathematical functions to an image's pixel values: square, square root, logarithm, sine and cosine.
  • Set the mathematical operation to be performed on each pixel’s values in the Type property. The resulting values are multiplied by the Factor property value. The Factor property can be any value greater than 0. It is divided internally by different amounts, according to the type of the function being used.

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.Color.MathematicalFunctionCommandBitmapEffect

Requirements

Target Platforms: Microsoft .NET Framework 3.0, Windows XP, Windows Vista, Windows Server 2003 family, Windows Server 2008 family

See Also