GraphicsPath.AddPath(GraphicsPath, Boolean) 方法

定义

命名空间:

System.Drawing.Drawing2D

程序集:

System.Drawing.Common.dll

包:

System.Drawing.Common v8.0.0

Source:

GraphicsPath.cs

将指定的 GraphicsPath 追加到该路径。

public:
 void AddPath(System::Drawing::Drawing2D::GraphicsPath ^ addingPath, bool connect);

public void AddPath (System.Drawing.Drawing2D.GraphicsPath addingPath, bool connect);

member this.AddPath : System.Drawing.Drawing2D.GraphicsPath * bool -> unit

Public Sub AddPath (addingPath As GraphicsPath, connect As Boolean)

参数

addingPath

GraphicsPath

要添加的 GraphicsPath。

connect

Boolean

一个布尔值，它指定添加的路径中的第一个图形是否是该路径中最后一个图形的一部分。 true 的值指定（如果可能）添加的路径中的第一个图形是该路径中最后一个图形的一部分。 false 的值指定添加的路径中的第一个图形与该路径中最后一个图形不同。

示例

下面的代码示例旨在与 Windows 窗体 一起使用，它需要 PaintEventArgse事件OnPaint对象。 此代码执行以下操作：

• 创建两个路径，一个是右侧向上三角形，另一个是上下三角形。

• 将第二个路径添加到第一个路径。

• 绘制屏幕的生成路径。

private:
   void AddPathExample( PaintEventArgs^ e )
   {
      // Create the first pathright side up triangle.
      array<Point>^ myArray = {Point(30,30),Point(60,60),Point(0,60),Point(30,30)};
      GraphicsPath^ myPath = gcnew GraphicsPath;
      myPath->AddLines( myArray );

      // Create the second pathinverted triangle.
      array<Point>^ myArray2 = {Point(30,30),Point(0,0),Point(60,0),Point(30,30)};
      GraphicsPath^ myPath2 = gcnew GraphicsPath;
      myPath2->AddLines( myArray2 );

      // Add the second path to the first path.
      myPath->AddPath( myPath2, true );

      // Draw the combined path to the screen.
      Pen^ myPen = gcnew Pen( Color::Black,2.0f );
      e->Graphics->DrawPath( myPen, myPath );
   }

private void AddPathExample(PaintEventArgs e)
{
             
    // Create the first pathright side up triangle.
    Point[] myArray =
             {
                 new Point(30,30),
                 new Point(60,60),
                 new Point(0,60),
                 new Point(30,30)
             };
    GraphicsPath myPath = new GraphicsPath();
    myPath.AddLines(myArray);
             
    // Create the second pathinverted triangle.
    Point[] myArray2 =
             {
                 new Point(30,30),
                 new Point(0,0),
                 new Point(60,0),
                 new Point(30,30)
             };
    GraphicsPath myPath2 = new GraphicsPath();
    myPath2.AddLines(myArray2);
             
    // Add the second path to the first path.
    myPath.AddPath(myPath2,true);
             
    // Draw the combined path to the screen.
    Pen myPen = new Pen(Color.Black, 2);
    e.Graphics.DrawPath(myPen, myPath);
}

Public Sub AddPathExample(ByVal e As PaintEventArgs)

    ' Creates a symmetrical triangle and adds an inverted triangle.

    ' Create the first path - right side up triangle.
    Dim myArray As Point() = {New Point(30, 30), New Point(60, 60), _
    New Point(0, 60), New Point(30, 30)}
    Dim myPath As New GraphicsPath
    myPath.AddLines(myArray)

    ' Create the second path - inverted triangle.
    Dim myArray2 As Point() = {New Point(30, 30), New Point(0, 0), _
    New Point(60, 0), New Point(30, 30)}
    Dim myPath2 As New GraphicsPath
    myPath2.AddLines(myArray2)

    ' Add the second path to the first path.
    myPath.AddPath(myPath2, True)

    ' Draw the combined path to the screen.
    Dim myPen As New Pen(Color.Black, 2)
    e.Graphics.DrawPath(myPen, myPath)
End Sub