Graphics.DrawClosedCurve 方法

定義

命名空間:

System.Drawing

組件:

System.Drawing.Common.dll

套件:

System.Drawing.Common v8.0.0

繪製由 Point 結構陣列定義的封閉的基本曲線。

多載

DrawClosedCurve(Pen, PointF[], Single, FillMode)	使用指定的張力，繪製由 PointF 結構定義的封閉基本曲線。
DrawClosedCurve(Pen, Point[], Single, FillMode)	使用指定的張力，繪製由 Point 結構定義的封閉基本曲線。
DrawClosedCurve(Pen, Point[])	繪製由 Point 結構陣列定義的封閉的基本曲線。
DrawClosedCurve(Pen, PointF[])	繪製由 PointF 結構陣列定義的封閉的基本曲線。

DrawClosedCurve(Pen, PointF[], Single, FillMode)

來源:

Graphics.cs

使用指定的張力，繪製由 PointF 結構定義的封閉基本曲線。

public:
 void DrawClosedCurve(System::Drawing::Pen ^ pen, cli::array <System::Drawing::PointF> ^ points, float tension, System::Drawing::Drawing2D::FillMode fillmode);

public void DrawClosedCurve (System.Drawing.Pen pen, System.Drawing.PointF[] points, float tension, System.Drawing.Drawing2D.FillMode fillmode);

member this.DrawClosedCurve : System.Drawing.Pen * System.Drawing.PointF[] * single * System.Drawing.Drawing2D.FillMode -> unit

Public Sub DrawClosedCurve (pen As Pen, points As PointF(), tension As Single, fillmode As FillMode)

參數

pen

Pen

Pen，決定曲線的色彩、寬度和高度。

points

PointF[]

定義曲線的 PointF 結構陣列。

tension

Single

大於或等於 0.0F 的值，指定曲線的張力。

fillmode

FillMode

FillMode 列舉的成員，決定填滿曲線的方法。 這個參數是必要的，但是會被忽略。

例外狀況

ArgumentNullException

pen 為 null。

-或-

points 為 null。

範例

下列程式代碼範例是設計來搭配 Windows Forms 使用，而且需要 PaintEventArgse，這是事件處理程序的參數Paint。 此程式碼會執行下列動作：

• 建立紅色和綠色畫筆。

• 建立七個點來定義曲線。

• 繪製七個點之間的七條紅色直線，以形成多邊形。

• 建立壓力和填滿模式設定。

• 繪製綠色封閉曲線到七點。

方法會使用 1.0 的批注，並將填滿模式設定為 FillMode.Alternate。

private:
   void DrawClosedCurvePointFTension( PaintEventArgs^ e )
   {
      // Create pens.
      Pen^ redPen = gcnew Pen( Color::Red,3.0f );
      Pen^ greenPen = gcnew Pen( Color::Green,3.0f );

      // Create points that define curve.
      PointF point1 = PointF(50.0F,50.0F);
      PointF point2 = PointF(100.0F,25.0F);
      PointF point3 = PointF(200.0F,5.0F);
      PointF point4 = PointF(250.0F,50.0F);
      PointF point5 = PointF(300.0F,100.0F);
      PointF point6 = PointF(350.0F,200.0F);
      PointF point7 = PointF(250.0F,250.0F);
      array<PointF>^ curvePoints = {point1,point2,point3,point4,point5,point6,point7};

      // Draw lines between original points to screen.
      e->Graphics->DrawLines( redPen, curvePoints );

      // Create tension and fill mode.
      float tension = 1.0F;
      FillMode aFillMode = FillMode::Alternate;

      // Draw closed curve to screen.
      e->Graphics->DrawClosedCurve( greenPen, curvePoints, tension, aFillMode );
   }

private void DrawClosedCurvePointFTension(PaintEventArgs e)
{

    // Create pens.
    Pen redPen = new Pen(Color.Red, 3);
    Pen greenPen = new Pen(Color.Green, 3);

    // Create points that define curve.
    PointF point1 = new PointF(50.0F, 50.0F);
    PointF point2 = new PointF(100.0F, 25.0F);
    PointF point3 = new PointF(200.0F, 5.0F);
    PointF point4 = new PointF(250.0F, 50.0F);
    PointF point5 = new PointF(300.0F, 100.0F);
    PointF point6 = new PointF(350.0F, 200.0F);
    PointF point7 = new PointF(250.0F, 250.0F);
    PointF[] curvePoints = {point1, point2, point3, point4, point5, point6, point7};

    // Draw lines between original points to screen.
    e.Graphics.DrawLines(redPen, curvePoints);

    // Create tension and fill mode.
    float tension = 1.0F;
    FillMode aFillMode = FillMode.Alternate;

    // Draw closed curve to screen.
    e.Graphics.DrawClosedCurve(greenPen, curvePoints, tension, aFillMode);
}

Private Sub DrawClosedCurvePointFTension(ByVal e As PaintEventArgs)

    ' Create pens.
    Dim redPen As New Pen(Color.Red, 3)
    Dim greenPen As New Pen(Color.Green, 3)

    ' Create points that define curve.
    Dim point1 As New PointF(50.0F, 50.0F)
    Dim point2 As New PointF(100.0F, 25.0F)
    Dim point3 As New PointF(200.0F, 5.0F)
    Dim point4 As New PointF(250.0F, 50.0F)
    Dim point5 As New PointF(300.0F, 100.0F)
    Dim point6 As New PointF(350.0F, 200.0F)
    Dim point7 As New PointF(250.0F, 250.0F)
    Dim curvePoints As PointF() = {point1, point2, point3, point4, _
    point5, point6, point7}

    ' Draw lines between original points to screen.
    e.Graphics.DrawLines(redPen, curvePoints)

    ' Create tension and fill mode.
    Dim tension As Single = 1.0F
    Dim aFillMode As FillMode = FillMode.Alternate

    ' Draw closed curve to screen.
    e.Graphics.DrawClosedCurve(greenPen, curvePoints, tension, _
    aFillMode)
End Sub

備註

這個方法會繪製經過陣列中每個點的封閉基數曲線。 如果最後一個點不符合第一個點，則會將另一個曲線線段從最後一個點新增至第一個點，以關閉它。

點陣陣必須至少包含四 PointF 個結構。

參數 tension 會決定曲線的形狀。 如果參數的值 tension 是 0.0F，這個方法會繪製直線線段來連接點。 參數通常 tension 小於或等於1.0F。 超過 1.0F 的值會產生不尋常的結果。

DrawClosedCurve(Pen, Point[], Single, FillMode)

來源:

Graphics.cs

使用指定的張力，繪製由 Point 結構定義的封閉基本曲線。

public:
 void DrawClosedCurve(System::Drawing::Pen ^ pen, cli::array <System::Drawing::Point> ^ points, float tension, System::Drawing::Drawing2D::FillMode fillmode);

public void DrawClosedCurve (System.Drawing.Pen pen, System.Drawing.Point[] points, float tension, System.Drawing.Drawing2D.FillMode fillmode);

member this.DrawClosedCurve : System.Drawing.Pen * System.Drawing.Point[] * single * System.Drawing.Drawing2D.FillMode -> unit

Public Sub DrawClosedCurve (pen As Pen, points As Point(), tension As Single, fillmode As FillMode)

參數

pen

Pen

Pen，決定曲線的色彩、寬度和高度。

points

Point[]

定義曲線的 Point 結構陣列。

tension

Single

大於或等於 0.0F 的值，指定曲線的張力。

fillmode

FillMode

FillMode 列舉的成員，決定填滿曲線的方法。 這個參數是必要的，但是會被忽略。

例外狀況

ArgumentNullException

pen 為 null。

-或-

points 為 null。

範例

下列程式代碼範例是設計來搭配 Windows Forms 使用，而且需要 PaintEventArgse，這是事件處理程序的參數Paint。 此程式碼會執行下列動作：

• 建立紅色和綠色畫筆。

• 建立七個點來定義曲線。

• 繪製七個點之間的七條紅色直線，以形成多邊形。

• 建立壓力和填滿模式設定。

• 繪製綠色封閉曲線到七點。

方法會使用 1.0 的批注，並將填滿模式設定為 FillMode.Alternate。

private:
   void DrawClosedCurvePointTension( PaintEventArgs^ e )
   {
      // Create pens.
      Pen^ redPen = gcnew Pen( Color::Red,3.0f );
      Pen^ greenPen = gcnew Pen( Color::Green,3.0f );

      // Create points that define curve.
      Point point1 = Point(50,50);
      Point point2 = Point(100,25);
      Point point3 = Point(200,5);
      Point point4 = Point(250,50);
      Point point5 = Point(300,100);
      Point point6 = Point(350,200);
      Point point7 = Point(250,250);
      array<Point>^ curvePoints = {point1,point2,point3,point4,point5,point6,point7};

      // Draw lines between original points to screen.
      e->Graphics->DrawLines( redPen, curvePoints );

      // Create tension and fill mode.
      float tension = 1.0F;
      FillMode aFillMode = FillMode::Alternate;

      // Draw closed curve to screen.
      e->Graphics->DrawClosedCurve( greenPen, curvePoints, tension, aFillMode );
   }

private void DrawClosedCurvePointTension(PaintEventArgs e)
{

    // Create pens.
    Pen redPen = new Pen(Color.Red, 3);
    Pen greenPen = new Pen(Color.Green, 3);

    // Create points that define curve.
    Point point1 = new Point(50, 50);
    Point point2 = new Point(100, 25);
    Point point3 = new Point(200, 5);
    Point point4 = new Point(250, 50);
    Point point5 = new Point(300, 100);
    Point point6 = new Point(350, 200);
    Point point7 = new Point(250, 250);
    Point[] curvePoints = {point1, point2, point3, point4, point5, point6, point7};

    // Draw lines between original points to screen.
    e.Graphics.DrawLines(redPen, curvePoints);

    // Create tension and fill mode.
    float tension = 1.0F;
    FillMode aFillMode = FillMode.Alternate;

    // Draw closed curve to screen.
    e.Graphics.DrawClosedCurve(greenPen, curvePoints, tension, aFillMode);
}

Private Sub DrawClosedCurvePointTension(ByVal e As PaintEventArgs)

    ' Create pens.
    Dim redPen As New Pen(Color.Red, 3)
    Dim greenPen As New Pen(Color.Green, 3)

    ' Create points that define curve.
    Dim point1 As New Point(50, 50)
    Dim point2 As New Point(100, 25)
    Dim point3 As New Point(200, 5)
    Dim point4 As New Point(250, 50)
    Dim point5 As New Point(300, 100)
    Dim point6 As New Point(350, 200)
    Dim point7 As New Point(250, 250)
    Dim curvePoints As Point() = {point1, point2, point3, point4, _
    point5, point6, point7}

    ' Draw lines between original points to screen.
    e.Graphics.DrawLines(redPen, curvePoints)

    ' Create tension and fill mode.
    Dim tension As Single = 1.0F
    Dim aFillMode As FillMode = FillMode.Alternate

    ' Draw closed curve to screen.
    e.Graphics.DrawClosedCurve(greenPen, curvePoints, tension, _
    aFillMode)
End Sub

備註

這個方法會繪製經過陣列中每個點的封閉基數曲線。 如果最後一個點不符合第一個點，則會將另一個曲線線段從最後一個點新增至第一個點，以關閉它。

點陣陣必須至少包含四 Point 個結構。

參數 tension 會決定曲線的形狀。 如果參數的值 tension 是 0.0F，這個方法會繪製直線線段來連接點。 參數通常 tension 小於或等於1.0F。 超過 1.0F 的值會產生不尋常的結果。

DrawClosedCurve(Pen, Point[])

來源:

Graphics.cs

繪製由 Point 結構陣列定義的封閉的基本曲線。

public:
 void DrawClosedCurve(System::Drawing::Pen ^ pen, cli::array <System::Drawing::Point> ^ points);

public void DrawClosedCurve (System.Drawing.Pen pen, System.Drawing.Point[] points);

member this.DrawClosedCurve : System.Drawing.Pen * System.Drawing.Point[] -> unit

Public Sub DrawClosedCurve (pen As Pen, points As Point())

參數

pen

Pen

Pen，決定曲線的色彩、寬度和高度。

points

Point[]

定義曲線的 Point 結構陣列。

例外狀況

ArgumentNullException

pen 為 null。

-或-

points 為 null。

範例

下列程式代碼範例是設計來搭配 Windows Forms 使用，而且需要 PaintEventArgse，這是事件處理程序的參數Paint。 此程式碼會執行下列動作：

• 建立紅色和綠色畫筆。

• 建立七個點來定義曲線。

• 繪製七個點之間的七條紅色直線，以形成封閉的多邊形。

• 繪製綠色封閉曲線到七點。

方法會使用預設的 0.5。

private:
   void DrawClosedCurvePoint( PaintEventArgs^ e )
   {

      // Create pens.
      Pen^ redPen = gcnew Pen( Color::Red,3.0f );
      Pen^ greenPen = gcnew Pen( Color::Green,3.0f );

      // Create points that define curve.
      Point point1 = Point(50,50);
      Point point2 = Point(100,25);
      Point point3 = Point(200,5);
      Point point4 = Point(250,50);
      Point point5 = Point(300,100);
      Point point6 = Point(350,200);
      Point point7 = Point(250,250);
      array<Point>^ curvePoints = {point1,point2,point3,point4,point5,point6,point7};

      // Draw lines between original points to screen.
      e->Graphics->DrawLines( redPen, curvePoints );

      // Draw closed curve to screen.
      e->Graphics->DrawClosedCurve( greenPen, curvePoints );
   }

private void DrawClosedCurvePoint(PaintEventArgs e)
{
    // Create pens.
    Pen redPen   = new Pen(Color.Red, 3);
    Pen greenPen = new Pen(Color.Green, 3);
             
    // Create points that define curve.
    Point point1 = new Point(50,  50);
    Point point2 = new Point(100,  25);
    Point point3 = new Point(200,   5);
    Point point4 = new Point(250,  50);
    Point point5 = new Point(300, 100);
    Point point6 = new Point(350, 200);
    Point point7 = new Point(250, 250);
    Point[] curvePoints =
             {
                 point1,
                 point2,
                 point3,
                 point4,
                 point5,
                 point6,
                 point7
             };
             
    // Draw lines between original points to screen.
    e.Graphics.DrawLines(redPen, curvePoints);
             
    // Draw closed curve to screen.
    e.Graphics.DrawClosedCurve(greenPen, curvePoints);
}

Private Sub DrawClosedCurvePoint(ByVal e As PaintEventArgs)

    ' Create pens.
    Dim redPen As New Pen(Color.Red, 3)
    Dim greenPen As New Pen(Color.Green, 3)

    ' Create points that define curve.
    Dim point1 As New Point(50, 50)
    Dim point2 As New Point(100, 25)
    Dim point3 As New Point(200, 5)
    Dim point4 As New Point(250, 50)
    Dim point5 As New Point(300, 100)
    Dim point6 As New Point(350, 200)
    Dim point7 As New Point(250, 250)
    Dim curvePoints As Point() = {point1, point2, point3, point4, _
    point5, point6, point7}

    ' Draw lines between original points to screen.
    e.Graphics.DrawLines(redPen, curvePoints)

    ' Draw closed curve to screen.
    e.Graphics.DrawClosedCurve(greenPen, curvePoints)
End Sub

備註

這個方法會繪製經過陣列中每個點的封閉基數曲線。 如果最後一個點不符合第一個點，則會將另一個曲線線段從最後一個點新增至第一個點，以關閉圖表。

點陣陣必須至少包含四 Point 個結構。

這個方法使用預設的 0.5。

DrawClosedCurve(Pen, PointF[])

來源:

Graphics.cs

繪製由 PointF 結構陣列定義的封閉的基本曲線。

public:
 void DrawClosedCurve(System::Drawing::Pen ^ pen, cli::array <System::Drawing::PointF> ^ points);

public void DrawClosedCurve (System.Drawing.Pen pen, System.Drawing.PointF[] points);

member this.DrawClosedCurve : System.Drawing.Pen * System.Drawing.PointF[] -> unit

Public Sub DrawClosedCurve (pen As Pen, points As PointF())

參數

pen

Pen

Pen，決定曲線的色彩、寬度和高度。

points

PointF[]

定義曲線的 PointF 結構陣列。

例外狀況

ArgumentNullException

pen 為 null。

-或-

points 為 null。

範例

下列程式代碼範例是設計來搭配 Windows Forms 使用，而且需要 PaintEventArgse，這是事件處理程序的參數Paint。 此程式碼會執行下列動作：

• 建立紅色和綠色畫筆。

• 建立七個點來定義曲線。

• 繪製七個點之間的七條紅色直線，以形成封閉的多邊形。

• 繪製綠色封閉曲線到七點。

方法會使用預設的 0.5。

private:
   void DrawClosedCurvePointF( PaintEventArgs^ e )
   {
      // Create pens.
      Pen^ redPen = gcnew Pen( Color::Red,3.0f );
      Pen^ greenPen = gcnew Pen( Color::Green,3.0f );

      // Create points that define curve.
      PointF point1 = PointF(50.0F,50.0F);
      PointF point2 = PointF(100.0F,25.0F);
      PointF point3 = PointF(200.0F,5.0F);
      PointF point4 = PointF(250.0F,50.0F);
      PointF point5 = PointF(300.0F,100.0F);
      PointF point6 = PointF(350.0F,200.0F);
      PointF point7 = PointF(250.0F,250.0F);
      array<PointF>^ curvePoints = {point1,point2,point3,point4,point5,point6,point7};

      // Draw lines between original points to screen.
      e->Graphics->DrawLines( redPen, curvePoints );

      // Draw closed curve to screen.
      e->Graphics->DrawClosedCurve( greenPen, curvePoints );
   }

private void DrawClosedCurvePointF(PaintEventArgs e)
{

    // Create pens.
    Pen redPen = new Pen(Color.Red, 3);
    Pen greenPen = new Pen(Color.Green, 3);

    // Create points that define curve.
    PointF point1 = new PointF(50.0F, 50.0F);
    PointF point2 = new PointF(100.0F, 25.0F);
    PointF point3 = new PointF(200.0F, 5.0F);
    PointF point4 = new PointF(250.0F, 50.0F);
    PointF point5 = new PointF(300.0F, 100.0F);
    PointF point6 = new PointF(350.0F, 200.0F);
    PointF point7 = new PointF(250.0F, 250.0F);
    PointF[] curvePoints = {point1, point2, point3, point4, point5, point6, point7};

    // Draw lines between original points to screen.
    e.Graphics.DrawLines(redPen, curvePoints);

    // Draw closed curve to screen.
    e.Graphics.DrawClosedCurve(greenPen, curvePoints);
}

Private Sub DrawClosedCurvePointF(ByVal e As PaintEventArgs)

    ' Create pens.
    Dim redPen As New Pen(Color.Red, 3)
    Dim greenPen As New Pen(Color.Green, 3)

    ' Create points that define curve.
    Dim point1 As New PointF(50.0F, 50.0F)
    Dim point2 As New PointF(100.0F, 25.0F)
    Dim point3 As New PointF(200.0F, 5.0F)
    Dim point4 As New PointF(250.0F, 50.0F)
    Dim point5 As New PointF(300.0F, 100.0F)
    Dim point6 As New PointF(350.0F, 200.0F)
    Dim point7 As New PointF(250.0F, 250.0F)
    Dim curvePoints As PointF() = {point1, point2, point3, point4, _
    point5, point6, point7}

    ' Draw lines between original points to screen.
    e.Graphics.DrawLines(redPen, curvePoints)

    ' Draw closed curve to screen.
    e.Graphics.DrawClosedCurve(greenPen, curvePoints)
End Sub

備註

這個方法會繪製經過陣列中每個點的封閉基數曲線。 如果最後一個點不符合第一個點，則會將另一個曲線線段從最後一個點新增至第一個點，以關閉它。

點陣陣必須至少包含四 PointF 個結構。

這個方法使用預設的 0.5。