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Clip Method

Summary
Trims this RasterRegion to fit inside a specified LeadRect.
Syntax
C#
Objective-C
C++/CLI
Java
Python
public void Clip( 
   LeadRect rect 
) 
- (BOOL)clip:(LeadRect)rect error:(NSError **)error 
public void clip( 
   LeadRect rect 
); 
public: 
void Clip(  
   LeadRect rect 
)  
def Clip(self,rect): 

Parameters

rect
A LeadRect that defines the clipping boundaries.

Example

This example will create a large elliptical region in an image and fill it with yellow. It will then clip this region by 10 pixels from each side and fill the new region with red.

C#
using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing; 
 
 
public void RasterRegionClipExample() 
{ 
   string srcFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp"); 
   string destFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1_ClipRegion.bmp"); 
 
   using (RasterCodecs codecs = new RasterCodecs()) 
   { 
      // Load the source image 
      using (RasterImage image = codecs.Load(srcFileName, 0, CodecsLoadByteOrder.BgrOrGray, 1, 1)) 
      { 
         // Add a large elliptical region  
         image.AddEllipseToRegion(null, new LeadRect(0, 0, image.ImageWidth, image.ImageHeight), RasterRegionCombineMode.Set); 
 
         // Fill the image with yellow 
         FillCommand cmd = new FillCommand(RasterColor.FromKnownColor(RasterKnownColor.Yellow)); 
         cmd.Run(image); 
 
         // Get the region 
         using (RasterRegion region = image.GetRegion(null)) 
         { 
            // Clip this region by 10 pixels from each end 
            LeadRect bounds = region.GetBounds(); 
            bounds.Inflate(-10, -10); 
 
            region.Clip(bounds); 
 
            // Re-set this region into the image 
            image.SetRegion(null, region, RasterRegionCombineMode.Set); 
         } 
 
         // Now fill with red and save 
         cmd = new FillCommand(RasterColor.FromKnownColor(RasterKnownColor.Red)); 
         cmd.Run(image); 
 
         codecs.Save(image, destFileName, RasterImageFormat.Bmp, 24); 
      } 
   } 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS22\Resources\Images"; 
} 
Requirements

Target Platforms

Help Version 22.0.2023.5.16
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Leadtools Assembly
Products | Support | Contact Us | Intellectual Property Notices
© 1991-2023 LEAD Technologies, Inc. All Rights Reserved.