GetBounds Method

Summary

Gets a LeadRect structure that represents a rectangle that bounds this RasterRegion in pixels.

Syntax

Objective-C

C++/CLI

Java

Python

public LeadRect GetBounds()

@property (nonatomic, assign, readonly) LeadRect bounds

public LeadRect getBounds();

public: 
LeadRect GetBounds();

def GetBounds(self):

Return Value

A LeadRect structure that represents a rectangle that bounds this RasterRegion in pixels.

Remarks

The bounding rectangle is always the smallest possible bounding rectangle of this RasterRegion. The returned rectangle is empty (all values equals to zero) if the region is empty.

Example

Java

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing; 
 
 
public void RasterRegionExample() 
{ 
   string srcFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp"); 
   string destFileName1 = Path.Combine(LEAD_VARS.ImagesDir, "Image1_WithRegion1.bmp"); 
   string destFileName2 = Path.Combine(LEAD_VARS.ImagesDir, "Image1_WithRegion2.bmp"); 
 
   using (RasterCodecs codecs = new RasterCodecs()) 
   { 
      // Load the source image 
      using (RasterImage image = codecs.Load(srcFileName, 0, CodecsLoadByteOrder.BgrOrGray, 1, 1)) 
      { 
         // Create a new rectangular RasterRegion 
         using (RasterRegion region = new RasterRegion(new LeadRect(20, 30, 100, 200))) 
         { 
            // Show this region properties 
            Console.WriteLine("IsEmpty: {0}\nBounds: {1}", region.IsEmpty, region.GetBounds()); 
 
            // Set it into the image 
            image.SetRegion(null, region, RasterRegionCombineMode.Set); 
 
            // Fill the image with a color and save it to disk to show the region 
            FillCommand cmd = new FillCommand(RasterColor.FromKnownColor(RasterKnownColor.Yellow)); 
            cmd.Run(image); 
 
            codecs.Save(image, destFileName1, RasterImageFormat.Bmp, 24); 
 
            // Clear this region 
            region.MakeEmpty(); 
 
            // Show its properties 
            Console.WriteLine("IsEmpty: {0}\nBounds: {1}", region.IsEmpty, region.GetBounds()); 
 
            // Set it into the image and fill again with red, notice 
            // that this will fill the whole image since 
            // the region is now empty 
            image.SetRegion(null, region, RasterRegionCombineMode.Set); 
 
            cmd = new FillCommand(RasterColor.FromKnownColor(RasterKnownColor.Red)); 
            cmd.Run(image); 
 
            codecs.Save(image, destFileName2, RasterImageFormat.Bmp, 24); 
         } 
      } 
   } 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS23\Resources\Images"; 
}

 
import static org.junit.Assert.assertTrue; 
 
import java.io.File; 
import java.io.FileOutputStream; 
import java.io.IOException; 
import java.nio.file.Files; 
import java.nio.file.Paths; 
 
import org.junit.*; 
import org.junit.runner.JUnitCore; 
import org.junit.runner.Result; 
import org.junit.runner.notification.Failure; 
 
import leadtools.*; 
import leadtools.codecs.*; 
import leadtools.imageprocessing.FillCommand; 
 
 
public void rasterRegionExample() { 
   final String LEAD_VARS_IMAGES_DIR = "C:\\LEADTOOLS23\\Resources\\Images"; 
   String srcFileName = combine(LEAD_VARS_IMAGES_DIR, "Image1.cmp"); 
   String destFileName1 = combine(LEAD_VARS_IMAGES_DIR, "Image1_WithRegion1.bmp"); 
   String destFileName2 = combine(LEAD_VARS_IMAGES_DIR, "Image1_WithRegion2.bmp"); 
 
   RasterCodecs codecs = new RasterCodecs(); 
   // Load the source image 
   RasterImage image = codecs.load(srcFileName, 0, CodecsLoadByteOrder.BGR_OR_GRAY, 1, 1); 
 
   // Create a new rectangular RasterRegion 
   RasterRegion region = new RasterRegion(new LeadRect(20, 30, 100, 200)); 
 
   // Show this region properties 
   System.out.println("IsEmpty: " + region.isEmpty() + "\nBounds: " + region.getBounds()); 
 
   // Set it into the image 
   image.setRegion(null, region, RasterRegionCombineMode.SET); 
 
   // Fill the image with a color and save it to disk to show the region 
   FillCommand cmd = new FillCommand(RasterColor.fromKnownColor(RasterKnownColor.YELLOW)); 
   cmd.run(image); 
 
   codecs.save(image, destFileName1, RasterImageFormat.BMP, 24); 
   // Clear this region 
   region.makeEmpty(); 
 
   // Show its properties 
   System.out.println("IsEmpty: " + region.isEmpty() + "\nBounds: " + region.getBounds()); 
 
   // Set it into the image and fill again with red, notice 
   // that this will fill the whole image since 
   // the region is now empty 
   image.setRegion(null, region, RasterRegionCombineMode.SET); 
   cmd = new FillCommand(RasterColor.fromKnownColor(RasterKnownColor.RED)); 
   cmd.run(image); 
 
   codecs.save(image, destFileName2, RasterImageFormat.BMP, 24); 
 
   assertTrue("Image unsuccessfully saved", (new File(destFileName2)).exists()); 
   System.out.println("Command run and image saved to " + destFileName2); 
}

Requirements

Target Platforms

Reference

RasterRegion Class

RasterRegion Members

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Help Version 23.0.2024.2.29

Leadtools Assembly

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Leadtools Namespace

Leadtools.ImageProcessing Namespace

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