LinearGradientBrush.MultiplyTransform 方法

定义

命名空间:

System.Drawing.Drawing2D

程序集:

System.Drawing.Common.dll

包:

System.Drawing.Common v9.0.0-preview.6.24327.6

将表示此 LinearGradientBrush 的局部几何转换的 Matrix 乘以指定 Matrix 前面指定 Matrix。

重载

MultiplyTransform(Matrix, MatrixOrder)	将表示此 LinearGradientBrush 的局部几何转换的 Matrix 乘以指定顺序的指定 Matrix。
MultiplyTransform(Matrix)	将表示此 LinearGradientBrush 的局部几何转换的 Matrix 乘以指定 Matrix 前面指定 Matrix。

MultiplyTransform(Matrix, MatrixOrder)

Source:

LinearGradientBrush.cs

将表示此 LinearGradientBrush 的局部几何转换的 Matrix 乘以指定顺序的指定 Matrix。

public:
 void MultiplyTransform(System::Drawing::Drawing2D::Matrix ^ matrix, System::Drawing::Drawing2D::MatrixOrder order);

public void MultiplyTransform (System.Drawing.Drawing2D.Matrix matrix, System.Drawing.Drawing2D.MatrixOrder order);

member this.MultiplyTransform : System.Drawing.Drawing2D.Matrix * System.Drawing.Drawing2D.MatrixOrder -> unit

Public Sub MultiplyTransform (matrix As Matrix, order As MatrixOrder)

参数

matrix

Matrix

要乘以几何变换的 Matrix。

order

MatrixOrder

一个 MatrixOrder，指定将两个矩阵相乘的顺序。

示例

下面的代码示例旨在与 Windows 窗体一起使用，它需要 PaintEventArgseOnPaint 事件对象。 该代码执行以下操作：

• 创建新的 LinearGradientBrush。

• 使用此画笔将省略号绘制到屏幕。

• 调用 MultiplyTransform 方法以转换 LinearGradientBrush。

• 使用转换后的画笔将椭圆绘制到屏幕正下方的第一个椭圆。

请注意，下椭圆以水平方向拉伸，并拉伸渐变以匹配新形状。

private:
   void MultiplyTransformExample( PaintEventArgs^ e )
   {
      // Create a LinearGradientBrush.
      Rectangle myRect = Rectangle(20,20,200,100);
      LinearGradientBrush^ myLGBrush = gcnew LinearGradientBrush( myRect,Color::Blue,Color::Red,0.0f,true );

      // Draw an ellipse to the screen using the LinearGradientBrush.
      e->Graphics->FillEllipse( myLGBrush, myRect );

      // Transform the LinearGradientBrush.
      array<Point>^ transformArray = {Point(20,150),Point(400,150),Point(20,200)};
      Matrix^ myMatrix = gcnew Matrix( myRect,transformArray );
      myLGBrush->MultiplyTransform( myMatrix, MatrixOrder::Prepend );

      // Draw a second ellipse to the screen using
      // the transformed brush.
      e->Graphics->FillEllipse( myLGBrush, 20, 150, 380, 50 );
   }

 private void MultiplyTransformExample(PaintEventArgs e)
 {
              
     // Create a LinearGradientBrush.
     Rectangle myRect = new Rectangle(20, 20, 200, 100);
     LinearGradientBrush myLGBrush = new LinearGradientBrush(
         myRect, Color.Blue, Color.Red,  0.0f, true);
         
     // Draw an ellipse to the screen using the LinearGradientBrush.
     e.Graphics.FillEllipse(myLGBrush, myRect);
              
     // Transform the LinearGradientBrush.
     Point[] transformArray = { new Point(20, 150),
          new Point(400,150), new Point(20, 200) };

     Matrix myMatrix = new Matrix(myRect, transformArray);
     myLGBrush.MultiplyTransform(
         myMatrix,
         MatrixOrder.Prepend);
              
     // Draw a second ellipse to the screen using
     // the transformed brush.
     e.Graphics.FillEllipse(myLGBrush, 20, 150, 380, 50);
 }

Public Sub MultiplyTransformExample(ByVal e As PaintEventArgs)

    ' Create a LinearGradientBrush.
    Dim myRect As New Rectangle(20, 20, 200, 100)
    Dim myLGBrush As New LinearGradientBrush(myRect, Color.Blue, _
    Color.Red, 0.0F, True)

    ' Draw an ellipse to the screen using the LinearGradientBrush.
    e.Graphics.FillEllipse(myLGBrush, myRect)

    ' Transform the LinearGradientBrush.
    Dim transformArray As Point() = {New Point(20, 150), _
    New Point(400, 150), New Point(20, 200)}
    Dim myMatrix As New Matrix(myRect, transformArray)
    myLGBrush.MultiplyTransform(myMatrix, MatrixOrder.Prepend)

    ' Draw a second ellipse to the screen using the transformed brush.
    e.Graphics.FillEllipse(myLGBrush, 20, 150, 380, 50)
End Sub

MultiplyTransform(Matrix)

Source:

LinearGradientBrush.cs

将表示此 LinearGradientBrush 的局部几何转换的 Matrix 乘以指定 Matrix 前面指定 Matrix。

public:
 void MultiplyTransform(System::Drawing::Drawing2D::Matrix ^ matrix);

public void MultiplyTransform (System.Drawing.Drawing2D.Matrix matrix);

member this.MultiplyTransform : System.Drawing.Drawing2D.Matrix -> unit

Public Sub MultiplyTransform (matrix As Matrix)

参数

matrix

Matrix

要乘以几何变换的 Matrix。

示例

有关示例，请参阅 MultiplyTransform。