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GetRegionBounds Method

Summary
Gets the bounding rectangle of the image region.
Syntax
C#
Objective-C
C++/CLI
Java
Python
public LeadRect GetRegionBounds( 
   RasterRegionXForm xform 
) 
- (LeadRect)regionBounds:(nullable LTRasterRegionXForm *)xform 
public LeadRect getRegionBounds( 
   RasterRegionXForm xform 
); 
public: 
LeadRect GetRegionBounds(  
   RasterRegionXForm^ xform 
)  
def GetRegionBounds(self,xform): 

Parameters

xform
RasterRegionXForm object that LEADTOOLS uses to translate between display coordinates and image coordinates. If you specify null in this parameter, the scalar fields default to 1, the offsets default to 0, and the view perspective defaults to the image view perspective.

Return Value

The bounding rectangle.

Example
C#
Java
using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing; 
using Leadtools.ImageProcessing.Core; 
using Leadtools.ImageProcessing.Color; 
using Leadtools.Dicom; 
using Leadtools.Drawing; 
using Leadtools.Controls; 
using Leadtools.Svg; 
 
 
public void GetRegionBoundsExample() 
{ 
   RasterCodecs codecs = new RasterCodecs(); 
 
   string srcFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp"); 
   string destFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1_GetRegionBounds.bmp"); 
 
   // Load the image 
   RasterImage image = codecs.Load(srcFileName); 
 
   // Add an ellipse inside a rectangle region to the image 
 
   LeadRect rc = new LeadRect(image.Width / 3, image.Height / 3, image.Width / 3, image.Height / 3); 
   image.AddEllipseToRegion(null, rc, RasterRegionCombineMode.Set); 
 
   rc = image.GetRegionBounds(null); 
 
   image.AddRectangleToRegion(null, rc, RasterRegionCombineMode.Xor); 
 
   // Invert the region area and save the image 
   InvertCommand command = new InvertCommand(); 
   command.Run(image); 
   codecs.Save(image, destFileName, RasterImageFormat.Bmp, 24); 
 
   image.Dispose(); 
   codecs.Dispose(); 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS23\Resources\Images"; 
} 
 
import java.io.File; 
import java.io.FileInputStream; 
import java.io.IOException; 
import java.io.InputStream; 
import java.util.ArrayList; 
import java.util.List; 
 
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.core.*; 
import leadtools.svg.*; 
import leadtools.imageprocessing.CloneCommand; 
import leadtools.imageprocessing.FillCommand; 
import leadtools.imageprocessing.FlipCommand; 
import leadtools.imageprocessing.GrayscaleCommand; 
import leadtools.imageprocessing.color.InvertCommand; 
import leadtools.imageprocessing.color.PosterizeCommand; 
 
 
public void getRegionBoundsExample() { 
   final String LEAD_VARS_IMAGES_DIR = "C:\\LEADTOOLS23\\Resources\\Images"; 
   RasterCodecs codecs = new RasterCodecs(); 
   String srcFileName = combine(LEAD_VARS_IMAGES_DIR, "Image1.cmp"); 
   String destFileName = combine(LEAD_VARS_IMAGES_DIR, "Image1_GetRegionBounds.bmp"); 
 
   // Load the image 
   RasterImage image = codecs.load(srcFileName); 
 
   // Add an ellipse inside a rectangle region to the image 
   LeadRect rc = new LeadRect(image.getWidth() / 3, image.getHeight() / 3, image.getWidth() / 3, 
         image.getHeight() / 3); 
   image.addEllipseToRegion(null, rc, RasterRegionCombineMode.SET); 
   assertTrue(rc.getLeft() == (image.getWidth() / 3)); 
   rc = image.getRegionBounds(null); 
   image.addRectangleToRegion(null, rc, RasterRegionCombineMode.XOR); 
 
   // Invert the region area and save the image 
   InvertCommand command = new InvertCommand(); 
   command.run(image); 
   codecs.save(image, destFileName, RasterImageFormat.BMP, 24); 
 
   // Clean up 
   image.dispose(); 
   codecs.dispose(); 
 
   assertTrue("file unsuccessfully saved to " + destFileName, (new File(destFileName)).exists()); 
   System.out.printf("File saved successfully to %s%n", destFileName); 
} 
Requirements

Target Platforms

Help Version 23.0.2024.5.22
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© 1991-2024 LEAD Technologies, Inc. All Rights Reserved.

Leadtools Assembly
Products | Support | Contact Us | Intellectual Property Notices
© 1991-2023 LEAD Technologies, Inc. All Rights Reserved.