HighQualityRotateCommand Constructor(int,HighQualityRotateCommandFlags,RasterColor)

Summary

Initializes a new HighQualityRotateCommand class object with explicit parameters.

Syntax

Objective-C

C++/CLI

Java

Python

public HighQualityRotateCommand( 
   int angle, 
   HighQualityRotateCommandFlags flags, 
   RasterColor fillColor 
)

- (instancetype)initWithAngle:(NSInteger)angle flags:(LTHighQualityRotateCommandFlags)flags fillColor:(LTRasterColor*)fillColor NS_DESIGNATED_INITIALIZER;

public HighQualityRotateCommand( 
   int angle,  
   int flags,  
   RasterColor fillColor 
)

public: 
HighQualityRotateCommand(  
   int angle, 
   HighQualityRotateCommandFlags flags, 
   RasterColor fillColor 
)

__init__(self,angle,flags,fillColor) # Overloaded constructor

Parameters

angle
Hundredths of degrees to rotate (+/-). This can be a number from 1 to 36,000. A positive value will rotate the image in a clockwise rotation, while a negative value will rotate the image in a counter-clockwise rotation.

flags
Options to keep the resulting image the same size as the original image, or to resize according to the rotation direction specified, as well controlling the quality of the rotation.

fillColor
The background fill color. This parameter is used only when HighQualityRotateCommandFlags.Resize is specified in flags.

Remarks

You can also use the default constructor of the HighQualityRotateCommand class and set the options using the Angle, Flags and FillColor properties.

Example

Java

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing; 
using Leadtools.ImageProcessing.Core; 
 
public void HighQualityRotateCommandExample() 
{ 
   RasterCodecs codecs = new RasterCodecs(); 
 
   // Get an image 
   string tifFileName = Path.Combine(LEAD_VARS.ImagesDir, "ocr1.tif"); 
   string normalRotateFileName = Path.Combine(LEAD_VARS.ImagesDir, "ocr1_NormalRotated.tif"); 
   string highQualityRotateFileName = Path.Combine(LEAD_VARS.ImagesDir, "ocr1_HighQualityRotated.tif"); 
 
   int angle = 30 * 100; 
   RasterColor fillColor = RasterColor.FromKnownColor(RasterKnownColor.White); 
 
   // Load the image, rotate normally by 30 degrees and save 
   using (RasterImage image = codecs.Load(tifFileName)) 
   { 
      RotateCommand cmd = new RotateCommand(); 
      cmd.Angle = angle; 
      cmd.Flags = RotateCommandFlags.Resize | RotateCommandFlags.Bicubic; 
      cmd.FillColor = fillColor; 
      cmd.Run(image); 
      codecs.Save(image, normalRotateFileName, image.OriginalFormat, image.BitsPerPixel); 
   } 
 
 
   // Load the image, rotate with high quality by 30 degrees and save 
   using (RasterImage image = codecs.Load(tifFileName)) 
   { 
      HighQualityRotateCommand cmd = new HighQualityRotateCommand(); 
      cmd.Angle = angle; 
      cmd.Flags = HighQualityRotateCommandFlags.Resize | HighQualityRotateCommandFlags.BestQuality; 
      cmd.FillColor = fillColor; 
      cmd.Run(image); 
      codecs.Save(image, highQualityRotateFileName, image.OriginalFormat, image.BitsPerPixel); 
   } 
 
   // Now compare the saved TIF files and notice the difference in quality between 
   // the normal rotate and high quality 
 
   codecs.Dispose(); 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS23\Resources\Images"; 
}

 
import java.io.File; 
import java.io.IOException; 
 
import org.junit.*; 
import org.junit.runner.JUnitCore; 
import org.junit.runner.Result; 
import org.junit.runner.notification.Failure; 
import static org.junit.Assert.*; 
 
import leadtools.*; 
import leadtools.codecs.*; 
import leadtools.imageprocessing.*; 
import leadtools.imageprocessing.core.*; 
 
 
public void highQualityRotateCommandExample() { 
 
   final String LEAD_VARS_IMAGES_DIR = "C:\\LEADTOOLS23\\Resources\\Images"; 
   RasterCodecs codecs = new RasterCodecs(); 
 
   // Get an image 
   String tifFileName = combine(LEAD_VARS_IMAGES_DIR, "ocr1.tif"); 
   String normalRotateFileName = combine(LEAD_VARS_IMAGES_DIR, "ocr1_NormalRotated.tif"); 
   String highQualityRotateFileName = combine(LEAD_VARS_IMAGES_DIR, "ocr1_HighQualityRotated.tif"); 
 
   int angle = 30 * 100; 
   RasterColor fillColor = RasterColor.fromKnownColor(RasterKnownColor.WHITE); 
 
   // Load the image, rotate normally by 30 degrees and save 
   RasterImage image = codecs.load(tifFileName); 
   RotateCommand cmd = new RotateCommand(); 
   cmd.setAngle(angle); 
   cmd.setFlags(RotateCommandFlags.RESIZE.getValue() | RotateCommandFlags.BICUBIC.getValue()); 
   cmd.setFillColor(fillColor); 
   cmd.run(image); 
   codecs.save(image, normalRotateFileName, image.getOriginalFormat(), image.getBitsPerPixel()); 
   image.dispose(); 
 
   assertTrue(new File(normalRotateFileName).exists()); 
   System.out.println("Command run and image exported to: " + normalRotateFileName); 
 
   // Load the image, rotate with high quality by 30 degrees and save 
   image = codecs.load(tifFileName); 
   HighQualityRotateCommand command = new HighQualityRotateCommand(); 
   command.setAngle(angle); 
   command.setFlags( 
         HighQualityRotateCommandFlags.RESIZE.getValue() | HighQualityRotateCommandFlags.BEST_QUALITY.getValue()); 
   command.setFillColor(fillColor); 
   assertTrue(cmd.getAngle() == 3000 && cmd.getFillColor() == fillColor); 
   command.run(image); 
   codecs.save(image, highQualityRotateFileName, image.getOriginalFormat(), image.getBitsPerPixel()); 
 
   assertTrue(new File(highQualityRotateFileName).exists()); 
   System.out.println("Command run and image exported to: " + highQualityRotateFileName); 
 
   image.dispose(); 
 
   // Now compare the saved TIF files and notice the difference in quality between 
   // the normal rotate and high quality 
 
   codecs.dispose(); 
 
}

Requirements

Target Platforms

Reference

HighQualityRotateCommand Class

HighQualityRotateCommand Members

Overload List

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Help Version 23.0.2024.3.3