GetRegionBounds Method

Summary

Gets the bounding rectangle of the image region.

Syntax

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

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

Reference

RasterImage Class

RasterImage Members

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Help Version 23.0.2024.5.22

Leadtools Assembly

Introduction

Getting Started

Namespaces

Leadtools Namespace

Leadtools.ImageProcessing Namespace

Assemblies