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DrawStarCommand Class

Summary

Draws a star on the image. This command is available in the Imaging Pro and above toolkits.

Syntax

WinRT C#

C++

public class DrawStarCommand : Leadtools.Imageprocessing.Leadtools.ImageProcessing.RasterCommand, Leadtools.Imageprocessing.Leadtools.ImageProcessing.IRasterCommand

Public Class DrawStarCommand  
   Inherits Leadtools.Imageprocessing.Leadtools.ImageProcessing.RasterCommand 
   Implements Leadtools.Imageprocessing.Leadtools.ImageProcessing.IRasterCommand

public sealed class DrawStarCommand : Leadtools.Imageprocessing.Leadtools.ImageProcessing.IRasterCommand

function Leadtools.ImageProcessing.SpecialEffects.DrawStarCommand()

public ref class DrawStarCommand : public Leadtools.Imageprocessing.Leadtools.ImageProcessing.RasterCommand, Leadtools.Imageprocessing.Leadtools.ImageProcessing.IRasterCommand

Remarks

If the image has a region, the effect will be applied on the region only.
This command supports 12-bit and 16-bit grayscale and 48-bit and 64-bit color images. Support for 12-bit and 16-bit grayscale and 48-bit and 64-bit color images is available only in the Document/Medical toolkits.
This command does not support signed data images.
This command does not support 32-bit grayscale images.

For more information, refer to Correcting Colors.

Example

Run the DrawStarCommand on an image.

WinRT C#

Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.ImageProcessing.SpecialEffects 
 
<TestMethod()> _ 
Public Sub DrawStarCommandExample() 
   Dim codecs As New RasterCodecs() 
   codecs.ThrowExceptionsOnInvalidImages = True 
   Dim leadImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "ImageProcessingDemo\\Image3.cmp")) 
 
   ' Prepare the command 
   Dim command As DrawStarCommand = New DrawStarCommand 
   command.CenterPoint = New LeadPoint(leadImage.Width \ 2, leadImage.Height \ 2) 
   command.Spoke = 5 
   command.StarWidth = leadImage.Width \ 2 
   command.StarHeight = leadImage.Height \ 2 
   command.HoleSize = 50 
   command.Phase = 0 
   command.Angle = 0 
   command.DistanceOpacity = 0 
   command.SpokeDivision = 0 
   command.AngleOpacity = 0 
   command.BorderOpacity = 0 
   command.LowerColorFill = New RasterColor(255, 0, 0) 
   command.UpperColorFill = New RasterColor(0, 0, 255) 
   command.Opacity = 100 
   command.Flags = DrawStarCommandFlags.Inside 
 
   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 DrawStarCommandExample() 
{ 
   // Load an image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "ImageProcessingDemo\\Image3.cmp")); 
 
   // Prepare the command 
   DrawStarCommand command = new DrawStarCommand(); 
 
   command.CenterPoint     = new LeadPoint(image.Width/2, image.Height/2); 
   command.Spoke           = 5; 
   command.StarWidth       = image.Width/2; 
   command.StarHeight      = image.Height/2; 
   command.HoleSize        = 50; 
   command.Phase           = 0; 
   command.Angle           = 0; 
   command.DistanceOpacity = 0; 
   command.SpokeDivision   = 0; 
   command.AngleOpacity    = 0; 
   command.BorderOpacity   = 0; 
   command.LowerColorFill  = new RasterColor(255, 0, 0); 
   command.UpperColorFill  = new RasterColor(0, 0, 255); 
   command.Opacity         = 100; 
   command.Flags           = DrawStarCommandFlags.Inside; 
 
   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; 
 
public async Task DrawStarCommandExample() 
{ 
   // 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 
   DrawStarCommand command = new DrawStarCommand(); 
 
   command.CenterPoint     = LeadPointHelper.Create(image.Width/2, image.Height/2); 
   command.Spoke           = 5; 
   command.StarWidth       = image.Width/2; 
   command.StarHeight      = image.Height/2; 
   command.HoleSize        = 50; 
   command.Phase           = 0; 
   command.Angle           = 0; 
   command.DistanceOpacity = 0; 
   command.SpokeDivision   = 0; 
   command.AngleOpacity    = 0; 
   command.BorderOpacity   = 0; 
   command.LowerColorFill  = RasterColorHelper.Create(255, 0, 0); 
   command.UpperColorFill  = RasterColorHelper.Create(0, 0, 255); 
   command.Opacity         = 100; 
   command.Flags           = DrawStarCommandFlags.Inside; 
 
   command.Run(image); 
 
   string destFileName = @"result.bmp"; 
   StorageFile saveFile = await Tools.AppLocalFolder.CreateFileAsync(destFileName); 
   await codecs.SaveAsync(image, LeadStreamFactory.Create(saveFile), RasterImageFormat.Bmp, 24); 
}