AddRoundRectangleToRegion Method

C#
Visual Basic
WinRT C#
Java
Objective-C
WinRT JavaScript
C++

public void AddRoundRectangleToRegion( 
   RasterRegionXForm xform,
   LeadRect rc,
   LeadSize ellipse,
   RasterRegionCombineMode combineMode
)

'Declaration

Public Sub AddRoundRectangleToRegion( _
   ByVal xform As RasterRegionXForm, _
   ByVal rc As LeadRect, _
   ByVal ellipse As LeadSize, _
   ByVal combineMode As RasterRegionCombineMode _
)

'Usage

Dim instance As RasterImage
Dim xform As RasterRegionXForm
Dim rc As LeadRect
Dim ellipse As LeadSize
Dim combineMode As RasterRegionCombineMode
 
instance.AddRoundRectangleToRegion(xform, rc, ellipse, combineMode)

public void AddRoundRectangleToRegion( 
   RasterRegionXForm xform,
   LeadRect rc,
   LeadSize ellipse,
   RasterRegionCombineMode combineMode
)

public void addRoundRectangleToRegion(
  RasterRegionXForm xform, 
  LeadRect rc, 
  LeadPoint ellipse, 
  RasterRegionCombineMode combineMode
)

 function Leadtools.RasterImage.AddRoundRectangleToRegion( 
   xform ,
   rc ,
   ellipse ,
   combineMode 
)

public:
void AddRoundRectangleToRegion( 
   RasterRegionXForm^ xform,
   LeadRect rc,
   LeadSize ellipse,
   RasterRegionCombineMode combineMode
)

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.
rc: A LeadRect that specifies the bounding rectangle of the region.
ellipse: Specifies the width and height of the ellipse that describes the arc of the rounded corners.
combineMode: The action to take regarding the existing image region, if one is defined.

To update an existing region, you specify how the new region is to be combined with the existing one using the combineMode parameter. For more information, refer to RasterRegionCombineMode.

For more information, refer to Creating a Region.

For more information, refer to Saving A Region.

For more information, refer to Working with the Existing Region.

This example will load an image, adds a round rectangle region to it, run the InvertCommand to show the affected area before saving the image back to disk.

C#
Visual Basic
WinRT C#
WinRT JavaScript
Silverlight C#
Silverlight VB

Copy Code

Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.ImageProcessing
Imports Leadtools.ImageProcessing.Core
Imports Leadtools.ImageProcessing.Color
Imports Leadtools.Controls
Imports Leadtools.Dicom
Imports Leadtools.Drawing
Imports Leadtools.Svg

      
Public Sub AddRoundRectangleToRegionExample()
   Dim codecs As RasterCodecs = New RasterCodecs()
   Dim srcFileName As String = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp")
   Dim destFileName As String = Path.Combine(LEAD_VARS.ImagesDir, "Image1_AddRoundRectangleToRegion.bmp")

   ' Load the image
   Dim image As RasterImage = codecs.Load(srcFileName)

   ' Add a round rectangle region

   Dim xform As RasterRegionXForm = New RasterRegionXForm()
   xform.ViewPerspective = RasterViewPerspective.TopLeft
   xform.XOffset = 0
   xform.YOffset = 0
   xform.XScalarDenominator = 1
   xform.XScalarNumerator = 1
   xform.YScalarDenominator = 1
   xform.YScalarNumerator = 1

   Dim rc As LeadRect = New LeadRect(image.ImageWidth \ 4, image.ImageHeight \ 4, image.ImageWidth \ 3, image.ImageHeight \ 3)
   Dim sz As LeadSize = New LeadSize(rc.Width \ 4, rc.Height \ 4)
   image.AddRoundRectangleToRegion(xform, rc, sz, RasterRegionCombineMode.Set)

   ' Draw something on the image
   Dim command As InvertCommand = New InvertCommand()
   command.Run(image)

   ' Save the image
   codecs.Save(image, destFileName, RasterImageFormat.Bmp, 24)

   image.Dispose()
   codecs.Dispose()
End Sub

Public NotInheritable Class LEAD_VARS
Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images"
End Class

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 AddRoundRectangleToRegionExample()
{
   RasterCodecs codecs = new RasterCodecs();
   string srcFileName = Path.Combine(ImagesPath.Path, "Image1.cmp");
   string destFileName = Path.Combine(ImagesPath.Path, "Image1_AddRoundRectangleToRegion.bmp");

   // Load the image
   RasterImage image = codecs.Load(srcFileName);

   // Add a round rectangle region

   RasterRegionXForm xform = new RasterRegionXForm();
   xform.ViewPerspective = RasterViewPerspective.TopLeft;
   xform.XOffset = 0;
   xform.YOffset = 0;
   xform.XScalarDenominator = 1;
   xform.XScalarNumerator = 1;
   xform.YScalarDenominator = 1;
   xform.YScalarNumerator = 1;

   LeadRect rc = new LeadRect(image.ImageWidth / 4, image.ImageHeight / 4, image.ImageWidth / 3, image.ImageHeight / 3);
   LeadSize sz = new LeadSize(rc.Width / 4, rc.Height / 4);
   image.AddRoundRectangleToRegion(xform, rc, sz, RasterRegionCombineMode.Set);

   // Draw something on the image
   InvertCommand command = new InvertCommand();
   command.Run(image);

   // Save the image
   codecs.Save(image, destFileName, RasterImageFormat.Bmp, 24);

   image.Dispose();
   codecs.Dispose();
}

Target Platforms

Reference

RasterImage Class
RasterImage Members