RasterCurve Class

Visual Basic
C#
WinRT C#
WinRT JavaScript
C++

public class RasterCurve

'Declaration
 
Public Class RasterCurve

'Usage
 
Dim instance As RasterCurve

public sealed class RasterCurve

function Leadtools.RasterCurve()

public ref class RasterCurve

The RasterCurve class defines the curve to be used with the RasterImage.AddCurveToRegion method to draw a curve using an array of LeadPoint objects. The ToBezierPoints method is used to convert a curve to a Bezier. The RasterCurve class can define two types of curves, RasterCurveType.Standard and RasterCurveType.Bezier.

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

Public Sub RasterCurveExample()
      Dim codecs As RasterCodecs = New RasterCodecs()

      ' load an image
      Dim srcFileName As String = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp")
      Dim destFileName As String = Path.Combine(LEAD_VARS.ImagesDir, "Image1_curveinverted.bmp")
      Dim image As RasterImage = codecs.Load(srcFileName)

      ' create a new curve object
      Dim curve As RasterCurve = New RasterCurve()

      ' define the the curve
      curve.Points.Add(New LeadPoint(30, 30))
      curve.Points.Add(New LeadPoint(30, 200))
      curve.Points.Add(New LeadPoint(130, 130))
      curve.Points.Add(New LeadPoint(75, 75))
      curve.Points.Add(New LeadPoint(130, 30))

      curve.Type = RasterCurveType.Standard
      curve.FillMode = LeadFillMode.Winding
      curve.Tension = 0.5
      curve.Close = RasterCurveClose.Close

      image.AddCurveToRegion(Nothing, curve, RasterRegionCombineMode.Set)

      ' do something with the region
      Dim cmd As InvertCommand = New InvertCommand()
      cmd.Run(image)

      ' save the image back to disk
      codecs.Save(image, destFileName, RasterImageFormat.Bmp, 24)

      ' Cleanup
      image.Dispose()
   End Sub

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

public void RasterCurveExample()
   {
      RasterCodecs codecs = new RasterCodecs();

      // load an image
      string srcFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp");
      string destFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1_curveinverted.bmp");
      RasterImage image = codecs.Load(srcFileName);

      // create a new curve object
      RasterCurve curve = new RasterCurve();

      // define the the curve
      curve.Points.Add(new LeadPoint(30, 30));
      curve.Points.Add(new LeadPoint(30, 200));
      curve.Points.Add(new LeadPoint(130, 130));
      curve.Points.Add(new LeadPoint(75, 75));
      curve.Points.Add(new LeadPoint(130, 30));

      curve.Type = RasterCurveType.Standard;
      curve.FillMode = LeadFillMode.Winding;
      curve.Tension = 0.5;
      curve.Close = RasterCurveClose.Close;

      image.AddCurveToRegion(null, curve, RasterRegionCombineMode.Set);

      // do something with the region
      InvertCommand cmd = new InvertCommand();
      cmd.Run(image);

      // save the image back to disk
      codecs.Save(image, destFileName, RasterImageFormat.Bmp, 24);

      // Cleanup
      image.Dispose();
   }

static class LEAD_VARS
{
   public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images";
}

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

RasterCurve Members
Leadtools Namespace