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ShadowCommand Constructor(ShadowCommandAngle,int,ShadowCommandType)

Summary

Initializes a new ShadowCommand class object with explicit parameters.

Syntax
C#
VB
C++
  
Public Function New( _ 
   ByVal angle As ShadowCommandAngle, _ 
   ByVal threshold As Integer, _ 
   ByVal type As ShadowCommandType _ 
) 
public: 
ShadowCommand(  
   ShadowCommandAngle angle, 
   int threshold, 
   ShadowCommandType type 
) 

Parameters

angle
Angle value indicating the direction of the light source producing the shadow.

threshold
Threshold value used to determine which pixels will be affected . Valid values range from 0 through 255. When Type = ShadowCommandType.ColoredShadow, any component (R, G, or B) of a pixel with a value less than the Threshold value is not affected. When Type = ShadowCommandType.GrayShadow, any pixel where the master channel value is less than the Threshold value is not affected.

type
Type of the shadow.

Example

Run the ShadowCommand on an image.

C#
VB
using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.SpecialEffects; 
 
public void ShadowConstructorExample() 
{ 
   // Load an image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
 
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Master.jpg")); 
 
   // Prepare the command 
   ShadowCommand command = new ShadowCommand(ShadowCommandAngle.SouthEast, 0, ShadowCommandType.GrayShadow); 
   // Apply  shadow effect to the image. 
   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"; 
} 
Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.ImageProcessing.SpecialEffects 
 
Public Sub ShadowConstructorExample() 
   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 command As ShadowCommand = New ShadowCommand(ShadowCommandAngle.SouthEast, 0, ShadowCommandType.GrayShadow) 
   ' Apply  shadow effect to the image. 
   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 

Requirements

Target Platforms

Help Version 20.0.2019.9.19
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Leadtools.ImageProcessing.SpecialEffects Assembly