PerspectiveCommand Constructor(LeadPoint[],RasterColor,PerspectiveCommandType)

Visual Basic
C#
WinRT C#
Objective-C
Java
WinRT JavaScript
C++

public PerspectiveCommand( 
   LeadPoint[] cornerPoints,
   RasterColor fillColor,
   PerspectiveCommandType type
)

'Declaration
 
Public Function New( _
   ByVal cornerPoints() As LeadPoint, _
   ByVal fillColor As RasterColor, _
   ByVal type As PerspectiveCommandType _
)

'Usage
 
Dim cornerPoints() As LeadPoint
Dim fillColor As RasterColor
Dim type As PerspectiveCommandType
 
Dim instance As New PerspectiveCommand(cornerPoints, fillColor, type)

public PerspectiveCommand( 
   LeadPoint[] cornerPoints,
   RasterColor fillColor,
   PerspectiveCommandType type
)

function PerspectiveCommand( 
   cornerPoints ,
   fillColor ,
   type 
)

public:
PerspectiveCommand( 
   array<LeadPoint>^ cornerPoints,
   RasterColor fillColor,
   PerspectiveCommandType type
)

Parameters

cornerPoints: Array of Leadtools.LeadPoint that determines the new locations of image corners.
fillColor: Background color
type: The type of background.

Visual Basic
C#
WinRT C#
WinRT JavaScript
Silverlight C#
Silverlight VB

Copy Code

Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.ImageProcessing.SpecialEffects

Public Sub PerspectiveConstructorExample()
   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 cornerPoints() As LeadPoint
   ReDim cornerPoints(3)
   cornerPoints(0).X = CInt(leadImage.Width * 3 / 9)
   cornerPoints(0).Y = CInt(leadImage.Height * 1 / 12)
   cornerPoints(1).X = CInt(leadImage.Width * 3 / 4)
   cornerPoints(1).Y = CInt(leadImage.Height * 2 / 12)
   cornerPoints(2).X = CInt(leadImage.Width * 2 / 10)
   cornerPoints(2).Y = CInt(leadImage.Height * 8 / 10)
   cornerPoints(3).X = CInt(leadImage.Width * 10 / 11)
   cornerPoints(3).Y = CInt(leadImage.Height * 7 / 10)
   Dim command As New PerspectiveCommand(cornerPoints, New RasterColor(255, 0, 0), PerspectiveCommandType.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

using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing.SpecialEffects;

public void PerspectiveConstructorExample()
{
   // Load an image
   RasterCodecs codecs = new RasterCodecs();
   codecs.ThrowExceptionsOnInvalidImages = true;

   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Master.jpg"));

   // Prepare the command
   LeadPoint[] cornerPoints = new LeadPoint[4];
   cornerPoints[0].X = image.Width * 3 / 9;
   cornerPoints[0].Y = image.Height * 1 / 12;
   cornerPoints[1].X = image.Width * 3 / 4;
   cornerPoints[1].Y = image.Height * 2 / 12;
   cornerPoints[2].X = image.Width * 2 / 10;
   cornerPoints[2].Y = image.Height * 8 / 10;
   cornerPoints[3].X = image.Width * 10 / 11;
   cornerPoints[3].Y = image.Height * 7 / 10;
   PerspectiveCommand command  = new PerspectiveCommand(cornerPoints,
      new RasterColor(255, 0, 0),
      PerspectiveCommandType.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";
}

using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing.SpecialEffects;

[TestMethod]
public async Task PerspectiveConstructorExample()
{
   // Load an image
   RasterCodecs codecs = new RasterCodecs();
   codecs.ThrowExceptionsOnInvalidImages = true;
   string srcFileName = @"Assets\Image1.cmp";
   StorageFile loadFile = await Tools.AppInstallFolder.GetFileAsync(srcFileName);
   RasterImage image = await codecs.LoadAsync(LeadStreamFactory.Create(loadFile));

   // Prepare the command
   LeadPoint[] cornerPoints = new LeadPoint[4];
   cornerPoints[0].X = image.Width * 3 / 9;
   cornerPoints[0].Y = image.Height * 1 / 12;
   cornerPoints[1].X = image.Width * 3 / 4;
   cornerPoints[1].Y = image.Height * 2 / 12;
   cornerPoints[2].X = image.Width * 2 / 10;
   cornerPoints[2].Y = image.Height * 8 / 10;
   cornerPoints[3].X = image.Width * 10 / 11;
   cornerPoints[3].Y = image.Height * 7 / 10;
   PerspectiveCommand command  = new PerspectiveCommand(cornerPoints,
      RasterColorHelper.Create(255, 0, 0),
      PerspectiveCommandType.Image);
   command.Run(image);

   string destFileName = @"result.bmp";
   StorageFile saveFile = await Tools.AppLocalFolder.CreateFileAsync(destFileName);
   await codecs.SaveAsync(image, LeadStreamFactory.Create(saveFile), RasterImageFormat.Bmp, 24);
}

Target Platforms

Reference

PerspectiveCommand Class
PerspectiveCommand Members
Overload List