Graphics.DrawBeziers 方法

定义

Point 结构数组中绘制一系列贝塞尔样条。

重载

DrawBeziers(Pen, Point[])

Point 结构数组中绘制一系列贝塞尔样条。

DrawBeziers(Pen, PointF[])

PointF 结构数组中绘制一系列贝塞尔样条。

DrawBeziers(Pen, ReadOnlySpan<Point>)
DrawBeziers(Pen, ReadOnlySpan<PointF>)

DrawBeziers(Pen, Point[])

Source:
Graphics.cs
Source:
Graphics.cs
Source:
Graphics.cs
Source:
Graphics.cs
Source:
Graphics.cs

Point 结构数组中绘制一系列贝塞尔样条。

public:
 void DrawBeziers(System::Drawing::Pen ^ pen, cli::array <System::Drawing::Point> ^ points);
public:
 void DrawBeziers(System::Drawing::Pen ^ pen, ... cli::array <System::Drawing::Point> ^ points);
public void DrawBeziers (System.Drawing.Pen pen, System.Drawing.Point[] points);
public void DrawBeziers (System.Drawing.Pen pen, params System.Drawing.Point[] points);
member this.DrawBeziers : System.Drawing.Pen * System.Drawing.Point[] -> unit
Public Sub DrawBeziers (pen As Pen, points As Point())
Public Sub DrawBeziers (pen As Pen, ParamArray points As Point())

参数

pen
Pen

确定曲线的颜色、宽度和样式的 Pen

points
Point[]

表示确定曲线的点的 Point 结构的数组。 数组中的点数应为 3 加 1 的倍数,例如 4、7 或 10。

例外

pen null

-或-

points null

示例

下面的代码示例设计用于 Windows 窗体,它需要 PaintEventArgse,这是 Paint 事件处理程序的参数。 该代码执行以下操作:

  • 创建黑色笔。

  • 为第一条曲线和终点创建开始、结束和两个控制点,并为第二条曲线创建两个控制点。

  • 将连续的贝塞尔曲线绘制到屏幕。

private:
   void DrawBeziersPoint( PaintEventArgs^ e )
   {
      // Create pen.
      Pen^ blackPen = gcnew Pen( Color::Black,3.0f );

      // Create points for curve.
      Point start = Point(100,100);
      Point control1 = Point(200,10);
      Point control2 = Point(350,50);
      Point end1 = Point(500,100);
      Point control3 = Point(600,150);
      Point control4 = Point(650,250);
      Point end2 = Point(500,300);
      array<Point>^ bezierPoints = {start,control1,control2,end1,control3,control4,end2};

      // Draw arc to screen.
      e->Graphics->DrawBeziers( blackPen, bezierPoints );
   }
private void DrawBeziersPoint(PaintEventArgs e)
{
    // Create pen.
    Pen blackPen = new Pen(Color.Black, 3);
             
    // Create points for curve.
    Point start = new Point(100, 100);
    Point control1 = new Point(200, 10);
    Point control2 = new Point(350, 50);
    Point end1 = new Point(500, 100);
    Point control3 = new Point(600, 150);
    Point control4 = new Point(650, 250);
    Point end2 = new Point(500, 300);
    Point[] bezierPoints =
             {
                 start, control1, control2, end1,
                 control3, control4, end2
             };
             
    // Draw arc to screen.
    e.Graphics.DrawBeziers(blackPen, bezierPoints);
}
Private Sub DrawBeziersPoint(ByVal e As PaintEventArgs)

    ' Create pen.
    Dim blackPen As New Pen(Color.Black, 3)

    ' Create points for curve.
    Dim start As New Point(100, 100)
    Dim control1 As New Point(200, 10)
    Dim control2 As New Point(350, 50)
    Dim end1 As New Point(500, 100)
    Dim control3 As New Point(600, 150)
    Dim control4 As New Point(650, 250)
    Dim end2 As New Point(500, 300)
    Dim bezierPoints As Point() = {start, control1, control2, _
    end1, control3, control4, end2}

    ' Draw arc to screen.
    e.Graphics.DrawBeziers(blackPen, bezierPoints)
End Sub

注解

数组中的点数应为 3 加 1 的倍数,因为第一个样条需要 4 磅,任何其他样条都需要 3 磅。 第一个贝塞尔样条从第一个点绘制到点数组中的第四个点。 第二和第三个点是确定曲线形状的控制点。 每个后续曲线只需要另外三个点:另外两个控制点和一个终点。 上一条曲线的终点用作每个附加曲线的起点。

适用于

DrawBeziers(Pen, PointF[])

Source:
Graphics.cs
Source:
Graphics.cs
Source:
Graphics.cs
Source:
Graphics.cs
Source:
Graphics.cs

PointF 结构数组中绘制一系列贝塞尔样条。

public:
 void DrawBeziers(System::Drawing::Pen ^ pen, cli::array <System::Drawing::PointF> ^ points);
public:
 void DrawBeziers(System::Drawing::Pen ^ pen, ... cli::array <System::Drawing::PointF> ^ points);
public void DrawBeziers (System.Drawing.Pen pen, System.Drawing.PointF[] points);
public void DrawBeziers (System.Drawing.Pen pen, params System.Drawing.PointF[] points);
member this.DrawBeziers : System.Drawing.Pen * System.Drawing.PointF[] -> unit
Public Sub DrawBeziers (pen As Pen, points As PointF())
Public Sub DrawBeziers (pen As Pen, ParamArray points As PointF())

参数

pen
Pen

确定曲线的颜色、宽度和样式的 Pen

points
PointF[]

表示确定曲线的点的 PointF 结构的数组。 数组中的点数应为 3 加 1 的倍数,例如 4、7 或 10。

例外

pen null

-或-

points null

示例

下面的代码示例设计用于 Windows 窗体,它需要 PaintEventArgse,这是 Paint 事件处理程序的参数。 该代码执行以下操作:

  • 创建黑色笔。

  • 为第一条曲线和终点创建开始、结束和两个控制点,并为第二条曲线创建两个控制点。

  • 将连续的贝塞尔曲线绘制到屏幕。

private:
   void DrawBeziersPointF( PaintEventArgs^ e )
   {
      // Create pen.
      Pen^ blackPen = gcnew Pen( Color::Black,3.0f );

      // Create points for curve.
      PointF start = PointF(100.0F,100.0F);
      PointF control1 = PointF(200.0F,10.0F);
      PointF control2 = PointF(350.0F,50.0F);
      PointF end1 = PointF(500.0F,100.0F);
      PointF control3 = PointF(600.0F,150.0F);
      PointF control4 = PointF(650.0F,250.0F);
      PointF end2 = PointF(500.0F,300.0F);
      array<PointF>^ bezierPoints = {start,control1,control2,end1,control3,control4,end2};

      // Draw arc to screen.
      e->Graphics->DrawBeziers( blackPen, bezierPoints );
   }
private void DrawBeziersPointF(PaintEventArgs e)
{
    // Create pen.
    Pen blackPen = new Pen(Color.Black, 3);
             
    // Create points for curve.
    PointF start = new PointF(100.0F, 100.0F);
    PointF control1 = new PointF(200.0F, 10.0F);
    PointF control2 = new PointF(350.0F, 50.0F);
    PointF end1 = new PointF(500.0F, 100.0F);
    PointF control3 = new PointF(600.0F, 150.0F);
    PointF control4 = new PointF(650.0F, 250.0F);
    PointF end2 = new PointF(500.0F, 300.0F);
    PointF[] bezierPoints = { start, control1, control2, end1,
         control3, control4, end2 };      
                 
    // Draw arc to screen.
    e.Graphics.DrawBeziers(blackPen, bezierPoints);
}
Private Sub DrawBeziersPointF(ByVal e As PaintEventArgs)

    ' Create pen.
    Dim blackPen As New Pen(Color.Black, 3)

    ' Create points for curve.
    Dim start As New PointF(100.0F, 100.0F)
    Dim control1 As New PointF(200.0F, 10.0F)
    Dim control2 As New PointF(350.0F, 50.0F)
    Dim end1 As New PointF(500.0F, 100.0F)
    Dim control3 As New PointF(600.0F, 150.0F)
    Dim control4 As New PointF(650.0F, 250.0F)
    Dim end2 As New PointF(500.0F, 300.0F)
    Dim bezierPoints As PointF() = {start, control1, control2, _
    end1, control3, control4, end2}

    ' Draw arc to screen.
    e.Graphics.DrawBeziers(blackPen, bezierPoints)
End Sub

注解

数组中的点数应为 3 加 1 的倍数,因为第一个样条需要 4 磅,任何其他样条都需要 3 磅。 第一条贝塞尔曲线从第一个点绘制到点数组中的第四个点。 第二和第三个点是确定曲线形状的控制点。 每个后续曲线只需要另外三个点:另外两个控制点和一个终点。 上一条曲线的终点用作每个附加曲线的起点。

适用于

DrawBeziers(Pen, ReadOnlySpan<Point>)

Source:
Graphics.cs
Source:
Graphics.cs
public:
 void DrawBeziers(System::Drawing::Pen ^ pen, ReadOnlySpan<System::Drawing::Point> points);
public void DrawBeziers (System.Drawing.Pen pen, scoped ReadOnlySpan<System.Drawing.Point> points);
member this.DrawBeziers : System.Drawing.Pen * ReadOnlySpan<System.Drawing.Point> -> unit
Public Sub DrawBeziers (pen As Pen, points As ReadOnlySpan(Of Point))

参数

pen
Pen

适用于

DrawBeziers(Pen, ReadOnlySpan<PointF>)

Source:
Graphics.cs
Source:
Graphics.cs
public:
 void DrawBeziers(System::Drawing::Pen ^ pen, ReadOnlySpan<System::Drawing::PointF> points);
public void DrawBeziers (System.Drawing.Pen pen, scoped ReadOnlySpan<System.Drawing.PointF> points);
member this.DrawBeziers : System.Drawing.Pen * ReadOnlySpan<System.Drawing.PointF> -> unit
Public Sub DrawBeziers (pen As Pen, points As ReadOnlySpan(Of PointF))

参数

pen
Pen

适用于