Graphics.DrawBezier Método

Definição

Desenha uma spline de Bézier definida por quatro estruturas Point.Draws a Bézier spline defined by four Point structures.

Sobrecargas

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

Desenha uma spline de Bézier definida por quatro estruturas Point.Draws a Bézier spline defined by four Point structures.

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

Desenha uma spline de Bézier definida por quatro estruturas PointF.Draws a Bézier spline defined by four PointF structures.

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

Desenha um spline de Bézier definida por quatro pares de coordenadas ordenados que representam pontos.Draws a Bézier spline defined by four ordered pairs of coordinates that represent points.

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

Desenha uma spline de Bézier definida por quatro estruturas Point.Draws a Bézier spline defined by four Point structures.

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)

Parâmetros

pen
Pen

Estrutura Pen que determina a cor, a largura e o estilo da curva.Pen structure that determines the color, width, and style of the curve.

pt1
Point

Estrutura Point que representa o ponto inicial da curva.Point structure that represents the starting point of the curve.

pt2
Point

Estrutura Point que representa o primeiro ponto de controle da curva.Point structure that represents the first control point for the curve.

pt3
Point

Estrutura Point que representa o segundo ponto de controle da curva.Point structure that represents the second control point for the curve.

pt4
Point

Estrutura Point que representa o ponto final da curva.Point structure that represents the ending point of the curve.

Exceções

pen é null.pen is null.

Exemplos

O exemplo de código a seguir foi projetado para uso com Windows Forms, e ele requer PaintEventArgs e , que é um parâmetro do Paint manipulador de eventos.The following code example is designed for use with Windows Forms, and it requires PaintEventArgse, which is a parameter of the Paint event handler. O código executa as seguintes ações:The code performs the following actions:

  • Cria uma caneta preta.Creates a black pen.

  • Cria os pontos de controle Start, end e Two para a curva.Creates the start, end, and two control points for the curve.

  • Desenha a curva de Bézier na tela.Draws the Bézier curve to the screen.

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

Comentários

A curva de Bézier é desenhada desde o primeiro ponto até o quarto ponto.The Bézier curve is drawn from the first point to the fourth point. O segundo e o terceiro pontos são pontos de controle que determinam a forma da curva.The second and third points are control points that determine the shape of the curve.

Aplica-se a

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

Desenha uma spline de Bézier definida por quatro estruturas PointF.Draws a Bézier spline defined by four PointF structures.

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)

Parâmetros

pen
Pen

Pen que determina a cor, a largura e o estilo da curva.Pen that determines the color, width, and style of the curve.

pt1
PointF

Estrutura PointF que representa o ponto inicial da curva.PointF structure that represents the starting point of the curve.

pt2
PointF

Estrutura PointF que representa o primeiro ponto de controle da curva.PointF structure that represents the first control point for the curve.

pt3
PointF

Estrutura PointF que representa o segundo ponto de controle da curva.PointF structure that represents the second control point for the curve.

pt4
PointF

Estrutura PointF que representa o ponto final da curva.PointF structure that represents the ending point of the curve.

Exceções

pen é null.pen is null.

Exemplos

O exemplo de código a seguir foi projetado para uso com Windows Forms, e ele requer PaintEventArgs e , que é um parâmetro do Paint manipulador de eventos.The following code example is designed for use with Windows Forms, and it requires PaintEventArgse, which is a parameter of the Paint event handler. O código executa as seguintes ações:The code performs the following actions:

  • Cria uma caneta preta.Creates a black pen.

  • Cria os pontos de controle Start, end e Two para a curva.Creates the start, end, and two control points for the curve.

  • Desenha a curva de Bézier na tela.Draws the Bézier curve to the screen.

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

Comentários

O spline Bézier é desenhado desde o primeiro ponto até o quarto ponto.The Bézier spline is drawn from the first point to the fourth point. O segundo e o terceiro pontos são pontos de controle que determinam a forma da curva.The second and third points are control points that determine the shape of the curve.

Aplica-se a

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

Desenha um spline de Bézier definida por quatro pares de coordenadas ordenados que representam pontos.Draws a Bézier spline defined by four ordered pairs of coordinates that represent points.

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)

Parâmetros

pen
Pen

Pen que determina a cor, a largura e o estilo da curva.Pen that determines the color, width, and style of the curve.

x1
Single

A coordenada X do ponto de partida da curva.The x-coordinate of the starting point of the curve.

y1
Single

A coordenada Y do ponto de partida da curva.The y-coordinate of the starting point of the curve.

x2
Single

A coordenada X do primeiro ponto de controle da curva.The x-coordinate of the first control point of the curve.

y2
Single

A coordenada Y do primeiro ponto de controle da curva.The y-coordinate of the first control point of the curve.

x3
Single

A coordenada X do segundo ponto de controle da curva.The x-coordinate of the second control point of the curve.

y3
Single

A coordenada Y do segundo ponto de controle da curva.The y-coordinate of the second control point of the curve.

x4
Single

A coordenada X do ponto de término da curva.The x-coordinate of the ending point of the curve.

y4
Single

A coordenada Y do ponto de término da curva.The y-coordinate of the ending point of the curve.

Exceções

pen é null.pen is null.

Exemplos

O exemplo de código a seguir foi projetado para uso com Windows Forms, e ele requer PaintEventArgs e , que é um parâmetro do Paint manipulador de eventos.The following code example is designed for use with Windows Forms, and it requires PaintEventArgse, which is a parameter of the Paint event handler. O código executa as seguintes ações:The code performs the following actions:

  • Cria uma caneta preta.Creates a black pen.

  • Cria as coordenadas dos pontos de controle Start, end e Two para a curva.Creates the coordinates of the start, end, and two control points for the curve.

  • Desenha a curva de Bézier na tela.Draws the Bézier curve to the screen.

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

Comentários

O spline Bézier é desenhado desde o primeiro ponto até o quarto ponto.The Bézier spline is drawn from the first point to the fourth point. O segundo e o terceiro pontos são pontos de controle que determinam a forma da curva.The second and third points are control points that determine the shape of the curve.

Aplica-se a