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YScalarDenominator Property

Summary
The denominator for the Y scaling factor.
Syntax
C#
Objective-C
C++/CLI
Java
Python
public int YScalarDenominator { get; set; } 
@property (nonatomic, assign) NSInteger yScalarDenominator 
public int getYScalarDenominator(); 
public void setYScalarDenominator( 
   int intValue 
); 
public: 
property int YScalarDenominator { 
   int get(); 
   void set (    int ); 
} 
YScalarDenominator # get and set (RasterRegionXForm) 

Property Value

The denominator for the Y scaling factor.

Remarks

When translating information from the image, you can use the height of the painting method source rectangle for this value. (By default, it is the image height.)

When translating information to the image, you can use the height of the painting method destination rectangle for this value.

Refer to the XScalarNumerator property to see which methods translate which direction.

For more information, refer to Translating Coordinates for a Region.

Example
C#
using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing; 
 
 
public void RasterRegionTransformExample() 
{ 
   string srcFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp"); 
   string destFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1_TransformRegion.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)) 
         { 
            // Transform this region by making it twice as small 
            LeadRect bounds = region.GetBounds(); 
 
            RasterRegionXForm xform = RasterRegionXForm.Default; 
 
            xform.XScalarNumerator = 1; 
            xform.XScalarDenominator = 2; 
            xform.YScalarNumerator = 1; 
            xform.YScalarDenominator = 2; 
 
            xform.XOffset = bounds.Width / 2; 
            xform.YOffset = bounds.Height / 2; 
 
            region.Transform(xform); 
 
            // 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

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