Public Function ToBezierPoints() As Point()

Visual Basic (Usage)	Copy Code
Dim instance As RasterCurve Dim value() As Point   value = instance.ToBezierPoints()

public Point[] ToBezierPoints()

public:
array<Point>^ ToBezierPoints(); 

Return Value

This sample draws a smooth closed curve on a graphics that goes through five points.

Visual Basic

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Public Sub ToBezierPointsExample()  ' Define the curve  Dim curve As RasterCurve = New RasterCurve()  curve.Points.Add(New Point(130, 130))  curve.Points.Add(New Point(130, 300))  curve.Points.Add(New Point(230, 230))  curve.Points.Add(New Point(175, 175))  curve.Points.Add(New Point(230, 130))  curve.Type = RasterCurveType.Standard  curve.FillMode = FillMode.Winding  curve.Tension = 0.5  curve.Close = RasterCurveClose.Close  ' convert this curve into bezier points  Dim bezierPoints As Point() = curve.ToBezierPoints()  ' Draw this curve on a bitmap  Dim btmp As Bitmap = New Bitmap(400, 400)  Dim g As Graphics = Graphics.FromImage(btmp)  g.FillRectangle(Brushes.White, New Rectangle(0, 0, 400, 400))  g.DrawBeziers(Pens.Black, bezierPoints)  g.Dispose()  ' save this image to disk  Dim fileName As String = LeadtoolsExamples.Common.ImagesPath.Path + "ToBezierPoints.bmp"  btmp.Save(fileName, ImageFormat.Bmp)  btmp.Dispose()       End Sub

C#

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public void ToBezierPointsExample()  {     // Define the curve     RasterCurve curve = new RasterCurve();       curve.Points.Add(new Point(130, 130));     curve.Points.Add(new Point(130, 300));     curve.Points.Add(new Point(230, 230));     curve.Points.Add(new Point(175, 175));     curve.Points.Add(new Point(230, 130));       curve.Type = RasterCurveType.Standard;     curve.FillMode = FillMode.Winding;     curve.Tension = 0.5;     curve.Close = RasterCurveClose.Close;       // convert this curve into bezier points     Point[] bezierPoints = curve.ToBezierPoints();       // Draw this curve on a bitmap     Bitmap btmp = new Bitmap(400, 400);     Graphics g = Graphics.FromImage(btmp);     g.FillRectangle(Brushes.White, new Rectangle(0, 0, 400, 400));     g.DrawBeziers(Pens.Black, bezierPoints);     g.Dispose();       // save this image to disk     string fileName = LeadtoolsExamples.Common.ImagesPath.Path + "ToBezierPoints.bmp";     btmp.Save(fileName, ImageFormat.Bmp);       btmp.Dispose();  }

This method is used to convert a standard curve to an array of Bezier control points. A standard curve (RasterCurveType.Standard) is defined by the current RasterCurve. The standard curve passes through all of the points in the Points collection, and is continuous at each point. This method can be used to draw a curve by converting it to an array of Bezier points, using Graphics.DrawBeziers to draw the equivalent Bezier(s).

Target Platforms: Microsoft .NET Framework 3.0, Windows XP, Windows Server 2003 family, Windows Server 2008 family

Reference