Graphics.DrawBezier 方法

參考

定義

命名空間:: System.Drawing

組件:: System.Drawing.Common.dll

組件:: System.Drawing.dll

套件:: System.Drawing.Common v8.0.10

套件:: System.Drawing.Common v9.0.0-rc.2.24474.1

重要

部分資訊涉及發行前產品，在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊，不做任何明確或隱含的瑕疵擔保。

繪製由四個 Point 結構定義的貝氏曲線。

多載

DrawBezier(Pen, Point, Point, Point, Point)	繪製由四個 Point 結構定義的貝氏曲線。
DrawBezier(Pen, PointF, PointF, PointF, PointF)	繪製由四個 PointF 結構定義的貝氏曲線。
DrawBezier(Pen, Single, Single, Single, Single, Single, Single, Single, Single)	繪製由代表點的四對已排序座標所定義的 Bézier 曲線。

DrawBezier(Pen, Point, Point, Point, Point)

來源:: Graphics.cs

來源:: Graphics.cs

來源:: Graphics.cs

來源:: Graphics.cs

來源:: Graphics.cs

繪製由四個 Point 結構定義的貝氏曲線。

public:
 void DrawBezier(System::Drawing::Pen ^ pen, System::Drawing::Point pt1, System::Drawing::Point pt2, System::Drawing::Point pt3, System::Drawing::Point pt4);

public void DrawBezier (System.Drawing.Pen pen, System.Drawing.Point pt1, System.Drawing.Point pt2, System.Drawing.Point pt3, System.Drawing.Point pt4);

member this.DrawBezier : System.Drawing.Pen * System.Drawing.Point * System.Drawing.Point * System.Drawing.Point * System.Drawing.Point -> unit

Public Sub DrawBezier (pen As Pen, pt1 As Point, pt2 As Point, pt3 As Point, pt4 As Point)

參數

pen: Pen

Pen 結構，決定曲線的色彩、寬度和樣式。

pt1: Point

Point 結構，表示曲線的起點。

pt2: Point

Point 結構，表示曲線的第一個控制點。

pt3: Point

Point 結構，表示曲線的第二個控制點。

pt4: Point

Point 結構，表示曲線的結束點。

例外狀況

ArgumentNullException

pen null。

範例

下列程式代碼範例是專為搭配 Windows Forms 使用而設計，而且需要 PaintEventArgse，這是 Paint 事件處理程式的參數。程式代碼會執行下列動作：

建立黑色畫筆。
建立曲線的開始、結束和兩個控制點。
將貝塞爾曲線繪製到螢幕。

private:
   void DrawBezierPoint( 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 end = Point(500,100);

      // Draw arc to screen.
      e->Graphics->DrawBezier( blackPen, start, control1, control2, end );
   }

private void DrawBezierPoint(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 end = new Point(500, 100);
             
    // Draw arc to screen.
    e.Graphics.DrawBezier(blackPen, start, control1, control2, end);
}

Private Sub DrawBezierPoint(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 [end] As New Point(500, 100)

    ' Draw arc to screen.
    e.Graphics.DrawBezier(blackPen, start, control1, control2, [end])
End Sub

備註

貝塞爾曲線是從第一個點繪製到第四個點。第二和第三個點是決定曲線形狀的控制點。

適用於

DrawBezier(Pen, PointF, PointF, PointF, PointF)

來源:: Graphics.cs

來源:: Graphics.cs

來源:: Graphics.cs

來源:: Graphics.cs

來源:: Graphics.cs

繪製由四個 PointF 結構定義的貝氏曲線。

public:
 void DrawBezier(System::Drawing::Pen ^ pen, System::Drawing::PointF pt1, System::Drawing::PointF pt2, System::Drawing::PointF pt3, System::Drawing::PointF pt4);

public void DrawBezier (System.Drawing.Pen pen, System.Drawing.PointF pt1, System.Drawing.PointF pt2, System.Drawing.PointF pt3, System.Drawing.PointF pt4);

member this.DrawBezier : System.Drawing.Pen * System.Drawing.PointF * System.Drawing.PointF * System.Drawing.PointF * System.Drawing.PointF -> unit

Public Sub DrawBezier (pen As Pen, pt1 As PointF, pt2 As PointF, pt3 As PointF, pt4 As PointF)

參數

pen: Pen

Pen，決定曲線的色彩、寬度和樣式。

pt1: PointF

PointF 結構，表示曲線的起點。

pt2: PointF

PointF 結構，表示曲線的第一個控制點。

pt3: PointF

PointF 結構，表示曲線的第二個控制點。

pt4: PointF

PointF 結構，表示曲線的結束點。

例外狀況

ArgumentNullException

pen null。

範例

下列程式代碼範例是專為搭配 Windows Forms 使用而設計，而且需要 PaintEventArgse，這是 Paint 事件處理程式的參數。程式代碼會執行下列動作：

建立黑色畫筆。
建立曲線的開始、結束和兩個控制點。
將貝塞爾曲線繪製到螢幕。

private:
   void DrawBezierPointF( 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 end = PointF(500.0F,100.0F);

      // Draw arc to screen.
      e->Graphics->DrawBezier( blackPen, start, control1, control2, end );
   }

private void DrawBezierPointF(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 end = new PointF(500.0F, 100.0F);
             
    // Draw arc to screen.
    e.Graphics.DrawBezier(blackPen, start, control1, control2, end);
}

Private Sub DrawBezierPointF(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 [end] As New PointF(500.0F, 100.0F)

    ' Draw arc to screen.
    e.Graphics.DrawBezier(blackPen, start, control1, control2, [end])
End Sub

備註

貝塞爾曲線是從第一個點繪製到第四個點。第二和第三個點是決定曲線形狀的控制點。

適用於

DrawBezier(Pen, Single, Single, Single, Single, Single, Single, Single, Single)

來源:: Graphics.cs

來源:: Graphics.cs

來源:: Graphics.cs

來源:: Graphics.cs

來源:: Graphics.cs

繪製由代表點的四對已排序座標所定義的 Bézier 曲線。

public:
 void DrawBezier(System::Drawing::Pen ^ pen, float x1, float y1, float x2, float y2, float x3, float y3, float x4, float y4);

public void DrawBezier (System.Drawing.Pen pen, float x1, float y1, float x2, float y2, float x3, float y3, float x4, float y4);

member this.DrawBezier : System.Drawing.Pen * single * single * single * single * single * single * single * single -> unit

Public Sub DrawBezier (pen As Pen, x1 As Single, y1 As Single, x2 As Single, y2 As Single, x3 As Single, y3 As Single, x4 As Single, y4 As Single)

參數

pen: Pen

Pen，決定曲線的色彩、寬度和樣式。

x1: Single

曲線起點的 X 座標。

y1: Single

曲線起點的 Y 座標。

x2: Single

曲線第一個控制點的 X 座標。

y2: Single

曲線第一個控制點的 Y 座標。

x3: Single

曲線第二個控制點的 X 座標。

y3: Single

曲線第二個控制點的 Y 座標。

x4: Single

曲線結束點的 X 座標。

y4: Single

曲線結束點的 Y 座標。

例外狀況

ArgumentNullException

pen null。

範例

下列程式代碼範例是專為搭配 Windows Forms 使用而設計，而且需要 PaintEventArgse，這是 Paint 事件處理程式的參數。程式代碼會執行下列動作：

建立黑色畫筆。
為曲線建立開始、結束和兩個控制點的座標。
將貝塞爾曲線繪製到螢幕。

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

      // Create coordinates of points for curve.
      float startX = 100.0F;
      float startY = 100.0F;
      float controlX1 = 200.0F;
      float controlY1 = 10.0F;
      float controlX2 = 350.0F;
      float controlY2 = 50.0F;
      float endX = 500.0F;
      float endY = 100.0F;

      // Draw arc to screen.
      e->Graphics->DrawBezier( blackPen, startX, startY, controlX1, controlY1, controlX2, controlY2, endX, endY );
   }

private void DrawBezierFloat(PaintEventArgs e)
{
    // Create pen.
    Pen blackPen = new Pen(Color.Black, 3);
             
    // Create coordinates of points for curve.
    float startX = 100.0F;
    float startY = 100.0F;
    float controlX1 = 200.0F;
    float controlY1 =  10.0F;
    float controlX2 = 350.0F;
    float controlY2 =  50.0F;
    float endX = 500.0F;
    float endY = 100.0F;
             
    // Draw arc to screen.
    e.Graphics.DrawBezier(blackPen, startX, startY,
        controlX1, controlY1,
        controlX2, controlY2,
        endX, endY);
}


' Begin Example03.
Private Sub DrawBezierFloat(ByVal e As PaintEventArgs)

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

    ' Create coordinates of points for curve.
    Dim startX As Single = 100.0F
    Dim startY As Single = 100.0F
    Dim controlX1 As Single = 200.0F
    Dim controlY1 As Single = 10.0F
    Dim controlX2 As Single = 350.0F
    Dim controlY2 As Single = 50.0F
    Dim endX As Single = 500.0F
    Dim endY As Single = 100.0F

    ' Draw arc to screen.
    e.Graphics.DrawBezier(blackPen, startX, startY, controlX1, _
    controlY1, controlX2, controlY2, endX, endY)
End Sub

備註

貝塞爾曲線是從第一個點繪製到第四個點。第二和第三個點是決定曲線形狀的控制點。

適用於

共用方式為

Graphics.DrawBezier 方法

定義

多載

DrawBezier(Pen, Point, Point, Point, Point)

參數

例外狀況

範例

備註

適用於

DrawBezier(Pen, PointF, PointF, PointF, PointF)

參數

例外狀況

範例

備註

適用於

DrawBezier(Pen, Single, Single, Single, Single, Single, Single, Single, Single)

參數

例外狀況

範例

備註

適用於

其他資源