Points Property

Summary

The curve points.

Syntax

C++/CLI

Java

Python

public IList<LeadPoint> Points { get; }

public RasterCollection<LeadPoint> getPoints();

public: 
property IList<LeadPoint>^] Points { 
   IList<LeadPoint>^] get(); 
}

Points # get  (RasterCurve)

Property Value

A collection of LeadPoint objects that define the curve points.

Remarks

The number of points in the Points collection obey the following rules:

If Type is RasterCurveType.Bezier, the number of points in Points must be 3n + 1, where n >= 1. For example, the number of points can be 4, 7, 10, 13, and so on.
If Type is RasterCurveType.Standard, the number of points in Points must be greater than or equal to 3. For example, the number of points can be 3, 4, 5, 6, and so on.

Example

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing; 
using Leadtools.ImageProcessing.Color; 
 
 
public void RasterCurveExample() 
{ 
	string destFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1_curveinverted.bmp"); 
 
	// create a new curve object 
	RasterCurve curve = new RasterCurve(); 
 
	// define the curve 
	curve.Points.Add(new LeadPoint(30, 30)); 
	curve.Points.Add(new LeadPoint(30, 200)); 
	curve.Points.Add(new LeadPoint(130, 130)); 
	curve.Points.Add(new LeadPoint(75, 75)); 
	curve.Points.Add(new LeadPoint(130, 30)); 
 
	curve.Type = RasterCurveType.Standard; 
	curve.FillMode = LeadFillMode.Winding; 
	curve.Tension = 0.5; 
	curve.Close = RasterCurveClose.Close; 
 
	// create an image 
 
	using (RasterImage image = new RasterImage( 
	   RasterMemoryFlags.Conventional, 
	   250, 
	   250, 
	   24, 
	   RasterByteOrder.Bgr, 
	   RasterViewPerspective.BottomLeft, 
	   null, 
	   IntPtr.Zero, 
	   0)) 
	{ 
		Assert.IsNotNull(image); 
 
		// fill the image 
		new FillCommand(RasterColor.FromKnownColor(RasterKnownColor.Magenta)).Run(image); 
		image.AddCurveToRegion(null, curve, RasterRegionCombineMode.Set); 
 
		// do something with the region 
		new InvertCommand().Run(image); 
 
		// save the image 
		using (RasterCodecs codecs = new RasterCodecs()) 
		{ 
			// save the image back to disk 
			codecs.Save(image, destFileName, RasterImageFormat.Bmp, 24); 
		} 
	} 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS23\Resources\Images"; 
}

Requirements

Target Platforms

Reference

RasterCurve Class

RasterCurve Members

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Help Version 23.0.2024.2.29

Leadtools Assembly

Introduction

Getting Started

Namespaces

Leadtools Namespace

Leadtools.ImageProcessing Namespace

Assemblies