通过

Graphics.DrawLines 方法

  • 参考

定义

命名空间:
System.Drawing
程序集:
System.Drawing.Common.dll
程序集:
System.Drawing.dll
包:
System.Drawing.Common v9.0.0-preview.7.24405.4
包:
System.Drawing.Common v8.0.8

绘制连接 Point 结构的数组的一系列线段。

重载

DrawLines(Pen, ReadOnlySpan<Point>)
DrawLines(Pen, ReadOnlySpan<PointF>)
DrawLines(Pen, Point[])

绘制连接 Point 结构的数组的一系列线段。
DrawLines(Pen, PointF[])

绘制连接 PointF 结构的数组的一系列线段。

DrawLines(Pen, ReadOnlySpan<Point>)

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

参数

pen
Pen
points
ReadOnlySpan<Point>

适用于

DrawLines(Pen, ReadOnlySpan<PointF>)

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

参数

pen
Pen
points
ReadOnlySpan<PointF>

适用于

DrawLines(Pen, Point[])

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

绘制连接 Point 结构的数组的一系列线段。

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

参数

pen
Pen

用于确定线段的颜色、宽度和样式的 Pen。

points
Point[]

表示要连接的点的 Point 结构的数组。

例外

ArgumentNullException

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。

  • 创建线条段点数组。

  • 将连接的线条段绘制到屏幕。

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

      // Create array of points that define lines to draw.
      array<Point>^ points = {Point(10,10),Point(10,100),Point(200,50),Point(250,300)};

      //Draw lines to screen.
      e->Graphics->DrawLines( pen, points );
   }

public void DrawLinesPoint(PaintEventArgs e)
{
             
    // Create pen.
    Pen pen = new Pen(Color.Black, 3);
             
    // Create array of points that define lines to draw.
    Point[] points =
             {
                 new Point(10,  10),
                 new Point(10, 100),
                 new Point(200,  50),
                 new Point(250, 300)
             };
             
    //Draw lines to screen.
    e.Graphics.DrawLines(pen, points);
}

Public Sub DrawLinesPoint(ByVal e As PaintEventArgs)

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

    ' Create array of points that define lines to draw.
    Dim points As Point() = {New Point(10, 10), New Point(10, 100), _
    New Point(200, 50), New Point(250, 300)}

    'Draw lines to screen.
    e.Graphics.DrawLines(blackPen, points)
End Sub

注解

此方法绘制连接结束点数组的一系列线条。 数组中的前两个点指定第一行。 每个附加点指定一个线段的终点，其起点是上一行段的终点。

适用于

DrawLines(Pen, PointF[])

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

绘制连接 PointF 结构的数组的一系列线段。

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

参数

pen
Pen

用于确定线段的颜色、宽度和样式的 Pen。

points
PointF[]

表示要连接的点的 PointF 结构的数组。

例外

ArgumentNullException

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：

  • 代码创建黑色笔。

  • 创建线条段点数组。

  • 将连接的线条段绘制到屏幕。

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

      // Create array of points that define lines to draw.
      array<PointF>^ points = {PointF(10.0F,10.0F),PointF(10.0F,100.0F),PointF(200.0F,50.0F),PointF(250.0F,300.0F)};

      //Draw lines to screen.
      e->Graphics->DrawLines( pen, points );
   }

public void DrawLinesPointF(PaintEventArgs e)
{
             
    // Create pen.
    Pen pen = new Pen(Color.Black, 3);
             
    // Create array of points that define lines to draw.
    PointF[] points =
             {
                 new PointF(10.0F,  10.0F),
                 new PointF(10.0F, 100.0F),
                 new PointF(200.0F,  50.0F),
                 new PointF(250.0F, 300.0F)
             };
             
    //Draw lines to screen.
    e.Graphics.DrawLines(pen, points);
}

Public Sub DrawLinesPointF(ByVal e As PaintEventArgs)

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

    ' Create array of points that define lines to draw.
    Dim points As PointF() = {New PointF(10.0F, 10.0F), _
    New PointF(10.0F, 100.0F), New PointF(200.0F, 50.0F), _
    New PointF(250.0F, 300.0F)}

    'Draw lines to screen.
    e.Graphics.DrawLines(blackPen, points)
End Sub

注解

此方法绘制连接结束点数组的一系列线条。 数组中的前两个点指定第一行。 每个附加点指定一个线段的终点，其起点是上一行段的终点。

适用于