RasterCommandsList Class

Summary

Represents a collection of RasterCommands objects.

Syntax

Objective-C

C++

Java

[DefaultMemberAttribute("Item")] 
public class RasterCommandsList : IList<RasterCommand>, ICollection<RasterCommand>, IEnumerable<RasterCommand>, IEnumerable

Public Class RasterCommandsList 
   Implements System.Collections.Generic.IList(Of RasterCommand)

@interface LTRasterCommandsList : NSMutableArray<LTRasterCommand *>

public class RasterCommandsList implements List<IRasterCommand>

public ref class RasterCommandsList : System.Collections.Generic.IList<RasterCommand>

Remarks

This class provides a collection class that implements the .NET IList<T> interface.
Use this class to perform "batch" image processing, where one or more commands are executed on the input image sequentially.

Example

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing; 
using Leadtools.ImageProcessing.Kernel; 
 
public void RasterCommandsListExample() 
{ 
   using (RasterCodecs codecs = new RasterCodecs()) 
   { 
      // Load an image 
      using (RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "cannon.jpg"))) 
      { 
         //Prepare the list 
         RasterCommandsList commandsList = new RasterCommandsList(); 
         commandsList.CommandCompleted += new EventHandler<RasterCommandCompletedEventArgs>(CommandCompleted); 
 
         commandsList.Add(new Leadtools.ImageProcessing.Kernel.CropCommand(new LeadRect(100, 100, image.Width - 100, image.Height - 100))); 
         commandsList.Add(new InvertCommand()); 
 
         // Run the command and save the result 
         commandsList.Run(image); 
 
         // Check the result image created, otherwise use the input image 
         if (commandsList.ResultImage != null) 
         { 
            codecs.Save(commandsList.ResultImage, Path.Combine(LEAD_VARS.ImagesDir, "Result.bmp"), RasterImageFormat.Bmp, 24); 
            commandsList.ResultImage.Dispose(); 
         } 
         else 
         { 
            codecs.Save(image, Path.Combine(LEAD_VARS.ImagesDir, "Result.bmp"), RasterImageFormat.Bmp, 24); 
         } 
      } 
   } 
} 
 
private void CommandCompleted(object sender, RasterCommandCompletedEventArgs e) 
{ 
   Console.WriteLine(e.Command.ToString()); 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS21\Resources\Images"; 
}

Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.ImageProcessing.Kernel 
 
Public Sub RasterCommandsListExample() 
   Using codecs As RasterCodecs = New RasterCodecs() 
      Using image As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "cannon.jpg")) 
         ' Prepare the list 
         Dim commandsList As RasterCommandsList = New RasterCommandsList() 
         AddHandler commandsList.CommandCompleted, AddressOf CommandCompleted 
 
         commandsList.Add(New CropCommand(New LeadRect(100, 100, image.Width - 100, image.Height - 100))) 
         commandsList.Add(New InvertCommand()) 
 
         ' Run the command And save the result 
         commandsList.Run(image) 
 
         ' Check the result image created, otherwise use the input image 
         If commandsList.ResultImage IsNot Nothing Then 
            codecs.Save(commandsList.ResultImage, Path.Combine(LEAD_VARS.ImagesDir, "Result.bmp"), RasterImageFormat.Bmp, 24) 
            commandsList.ResultImage.Dispose() 
         Else 
            codecs.Save(image, Path.Combine(LEAD_VARS.ImagesDir, "Result.bmp"), RasterImageFormat.Bmp, 24) 
         End If 
 
      End Using 
   End Using 
End Sub 
 
Private Sub CommandCompleted(ByVal sender As Object, ByVal e As RasterCommandCompletedEventArgs) 
   Console.WriteLine(e.Command.ToString()) 
End Sub 
 
Public NotInheritable Class LEAD_VARS 
   Public Const ImagesDir As String = "C:\LEADTOOLS21\Resources\Images" 
End Class

Requirements

Target Platforms

Reference

RasterCommandsList Members

Leadtools.ImageProcessing.Kernel Namespace

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Help Version 21.0.2021.6.30

Leadtools.ImageProcessing.Kernel Assembly

Introduction

Getting Started

Namespaces

Leadtools.ImageProcessing.Kernel Namespace

Assemblies