KeyStoneCommand Constructor(LeadPoint[])

Summary

Initializes a new KeyStoneCommand class object with explicit parameters.

Syntax

Objective-C

C++/CLI

Java

Python

public KeyStoneCommand( 
   LeadPoint[] polygonPoints 
)

- (instancetype)initWithPolygonPoints:(NSArray<NSValue *> *)polygonPoints /*LeadPoint*/ NS_DESIGNATED_INITIALIZER;

public KeyStoneCommand( 
   LeadPoint[] polygonPoints 
);

public: 
KeyStoneCommand(  
   array<LeadPoint>^ polygonPoints 
)

__init__(self,polygonPoints) # Overloaded constructor

Parameters

polygonPoints
A reference to an array of LeadPoint structures that contain the four points of the polygon used in the transformation process.

Remarks

If the input array of points that represents the polygon has more than 4 points, an Invalid Parameters Exception will be thrown.

Example

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Core; 
 
public void KeyStoneCommandExample() 
{ 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
 
   //Load an image 
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Master.jpg")); 
 
   LeadPoint[] PolyPoints = new LeadPoint[4]; 
 
   //The four corners of the polygon 
   PolyPoints[0] = new LeadPoint(94, 94); 
   PolyPoints[1] = new LeadPoint(306, 43); 
   PolyPoints[2] = new LeadPoint(318, 237); 
   PolyPoints[3] = new LeadPoint(98, 237); 
 
   //Prepare the command 
   KeyStoneCommand command = new KeyStoneCommand(); 
 
   command.PolygonPoints = PolyPoints; 
   //Apply  
   command.Run(image); 
 
   codecs.Save(command.TransformedImage, Path.Combine(LEAD_VARS.ImagesDir, "Result.jpg"), image.OriginalFormat, image.BitsPerPixel); 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS22\Resources\Images"; 
}

Requirements

Target Platforms

Reference

KeyStoneCommand Class

KeyStoneCommand Members

Overload List

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Help Version 22.0.2023.11.1

Leadtools.ImageProcessing.Core Assembly

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