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ViewPerspective Property

Summary
Gets or sets the view perspective of the image data of this RasterImage.
Syntax
C#
Objective-C
C++/CLI
Java
Python
public RasterViewPerspective ViewPerspective { get; set; } 
@property (nonatomic, assign) LTRasterViewPerspective viewPerspective 
public RasterViewPerspective getViewPerspective(); 
public: 
property RasterViewPerspective ViewPerspective { 
   RasterViewPerspective get(); 
   void set (    RasterViewPerspective ); 
} 
ViewPerspective # get and set (RasterImage) 

Property Value

The view perspective of the image data of this RasterImage.

Remarks

The view perspective indicates where the beginning of the image is stored. For more information, see RasterViewPerspective.

For more information refer to Accounting For View Perspective.

Note: You should be careful when setting the view-perspective of an image using this property since it will not change the orientation of the data of the image. To do that, use ChangeViewPerspective.

Example
C#
Java
using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing; 
 
 
public void ChangeViewPerspectiveCommandExample() 
{ 
	RasterCodecs codecs = new RasterCodecs(); 
 
	string srcFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp"); 
 
	// Load the source image from disk 
	RasterImage image = codecs.Load(srcFileName); 
 
	// Check the view perspective 
	Console.WriteLine("Original view perspective = {0}", image.ViewPerspective); 
 
	// If the view perspective is TopLeft, change to BottomLeft and vise versa 
	RasterViewPerspective viewPerspective = image.ViewPerspective; 
	if (viewPerspective == RasterViewPerspective.TopLeft) 
		viewPerspective = RasterViewPerspective.BottomLeft; 
	else 
		viewPerspective = RasterViewPerspective.TopLeft; 
 
	// Change the image view perspective 
	ChangeViewPerspectiveCommand command = new ChangeViewPerspectiveCommand(); 
	command.ViewPerspective = viewPerspective; 
	command.InPlace = true; 
 
	command.Run(image); 
 
	// Re-check the view perspective 
	Console.WriteLine("New view perspective = {0}", image.ViewPerspective); 
	Assert.IsTrue(image.ViewPerspective == viewPerspective); 
 
	// Clean up 
	image.Dispose(); 
	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.*; 
 
 
public void changeViewPerspectiveCommandExample() { 
   final String LEAD_VARS_IMAGES_DIR = "C:\\LEADTOOLS23\\Resources\\Images"; 
   RasterCodecs codecs = new RasterCodecs(); 
   String srcFileName = combine(LEAD_VARS_IMAGES_DIR, "rgsref.cmp"); 
 
   // Load the source image from disk 
   RasterImage image = codecs.load(srcFileName); 
 
   // Check the view perspective 
   System.out.printf("Original view perspective = %s%n", image.getViewPerspective()); 
 
   // If the view perspective is TopLeft, change to BottomLeft and vise versa 
   RasterViewPerspective viewPerspective = image.getViewPerspective(); 
   if (viewPerspective == RasterViewPerspective.TOP_LEFT) 
      viewPerspective = RasterViewPerspective.BOTTOM_LEFT; 
   else 
      viewPerspective = RasterViewPerspective.TOP_LEFT; 
 
   // Change the image view perspective 
   ChangeViewPerspectiveCommand command = new ChangeViewPerspectiveCommand(); 
   command.setViewPerspective(viewPerspective); 
   command.setInPlace(true); 
 
   command.run(image); 
 
   // Re-check the view perspective 
   assertTrue(image.getViewPerspective() == viewPerspective); 
   System.out.printf("New view perspective = %s%n", image.getViewPerspective()); 
 
   // Clean up 
   image.dispose(); 
   codecs.dispose(); 
} 
Requirements

Target Platforms

Help Version 23.0.2024.5.22
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© 1991-2023 LEAD Technologies, Inc. All Rights Reserved.