GraphicsPath.Warp 方法

参考

定义

命名空间:: System.Drawing.Drawing2D

程序集:: System.Drawing.Common.dll

程序集:: System.Drawing.dll

包:: System.Drawing.Common v8.0.7

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

重要

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将此 GraphicsPath应用由矩形和平行四边形定义的扭曲转换。

重载

Warp(PointF[], RectangleF)	将此 GraphicsPath应用由矩形和平行四边形定义的扭曲转换。
Warp(PointF[], RectangleF, Matrix)	将此 GraphicsPath应用由矩形和平行四边形定义的扭曲转换。
Warp(PointF[], RectangleF, Matrix, WarpMode)	将此 GraphicsPath应用由矩形和平行四边形定义的扭曲转换。
Warp(PointF[], RectangleF, Matrix, WarpMode, Single)	将此 GraphicsPath应用由矩形和平行四边形定义的扭曲转换。
Warp(ReadOnlySpan<PointF>, RectangleF, Matrix, WarpMode, Single)

Warp(PointF[], RectangleF)

Source:: GraphicsPath.cs

Source:: GraphicsPath.cs

Source:: GraphicsPath.cs

Source:: GraphicsPath.cs

Source:: GraphicsPath.cs

将此 GraphicsPath应用由矩形和平行四边形定义的扭曲转换。

public:
 void Warp(cli::array <System::Drawing::PointF> ^ destPoints, System::Drawing::RectangleF srcRect);

public void Warp (System.Drawing.PointF[] destPoints, System.Drawing.RectangleF srcRect);

member this.Warp : System.Drawing.PointF[] * System.Drawing.RectangleF -> unit

Public Sub Warp (destPoints As PointF(), srcRect As RectangleF)

参数

destPoints: PointF[]

一个由 PointF 结构构成的数组，该数组定义由 srcRect 定义的矩形转换到的平行四边形。该数组可以包含三个或四个元素。如果数组包含三个元素，则前三个点将隐含平行四边形的右下角。

srcRect: RectangleF

一个 RectangleF，表示转换为由 destPoints定义的平行四边形的矩形。

示例

有关示例，请参阅 Warp(PointF[], RectangleF, Matrix, WarpMode, Single)。

适用于

Warp(PointF[], RectangleF, Matrix)

Source:: GraphicsPath.cs

Source:: GraphicsPath.cs

Source:: GraphicsPath.cs

Source:: GraphicsPath.cs

Source:: GraphicsPath.cs

将此 GraphicsPath应用由矩形和平行四边形定义的扭曲转换。

public:
 void Warp(cli::array <System::Drawing::PointF> ^ destPoints, System::Drawing::RectangleF srcRect, System::Drawing::Drawing2D::Matrix ^ matrix);

public void Warp (System.Drawing.PointF[] destPoints, System.Drawing.RectangleF srcRect, System.Drawing.Drawing2D.Matrix? matrix);

public void Warp (System.Drawing.PointF[] destPoints, System.Drawing.RectangleF srcRect, System.Drawing.Drawing2D.Matrix matrix);

member this.Warp : System.Drawing.PointF[] * System.Drawing.RectangleF * System.Drawing.Drawing2D.Matrix -> unit

Public Sub Warp (destPoints As PointF(), srcRect As RectangleF, matrix As Matrix)

参数

destPoints: PointF[]

srcRect: RectangleF

一个 RectangleF，表示转换为由 destPoints定义的平行四边形的矩形。

matrix: Matrix

指定要应用于路径的几何转换的 Matrix。

示例

有关示例，请参阅 Warp(PointF[], RectangleF, Matrix, WarpMode, Single)。

适用于

Warp(PointF[], RectangleF, Matrix, WarpMode)

Source:: GraphicsPath.cs

Source:: GraphicsPath.cs

Source:: GraphicsPath.cs

Source:: GraphicsPath.cs

Source:: GraphicsPath.cs

将此 GraphicsPath应用由矩形和平行四边形定义的扭曲转换。

public:
 void Warp(cli::array <System::Drawing::PointF> ^ destPoints, System::Drawing::RectangleF srcRect, System::Drawing::Drawing2D::Matrix ^ matrix, System::Drawing::Drawing2D::WarpMode warpMode);

public void Warp (System.Drawing.PointF[] destPoints, System.Drawing.RectangleF srcRect, System.Drawing.Drawing2D.Matrix? matrix, System.Drawing.Drawing2D.WarpMode warpMode);

public void Warp (System.Drawing.PointF[] destPoints, System.Drawing.RectangleF srcRect, System.Drawing.Drawing2D.Matrix matrix, System.Drawing.Drawing2D.WarpMode warpMode);

member this.Warp : System.Drawing.PointF[] * System.Drawing.RectangleF * System.Drawing.Drawing2D.Matrix * System.Drawing.Drawing2D.WarpMode -> unit

Public Sub Warp (destPoints As PointF(), srcRect As RectangleF, matrix As Matrix, warpMode As WarpMode)

参数

destPoints: PointF[]

一个由 PointF 结构构成的数组，该数组定义由 srcRect 定义的矩形的平行四边形转换。该数组可以包含三个或四个元素。如果数组包含三个元素，则前三个点将隐含平行四边形的右下角。

srcRect: RectangleF

一个 RectangleF，表示转换为由 destPoints定义的平行四边形的矩形。

matrix: Matrix

指定要应用于路径的几何转换的 Matrix。

warpMode: WarpMode

一个 WarpMode 枚举，指定此扭曲操作是使用透视模式还是双线性模式。

示例

有关示例，请参阅 Warp(PointF[], RectangleF, Matrix, WarpMode, Single)。

适用于

Warp(PointF[], RectangleF, Matrix, WarpMode, Single)

Source:: GraphicsPath.cs

Source:: GraphicsPath.cs

Source:: GraphicsPath.cs

Source:: GraphicsPath.cs

Source:: GraphicsPath.cs

将此 GraphicsPath应用由矩形和平行四边形定义的扭曲转换。

public:
 void Warp(cli::array <System::Drawing::PointF> ^ destPoints, System::Drawing::RectangleF srcRect, System::Drawing::Drawing2D::Matrix ^ matrix, System::Drawing::Drawing2D::WarpMode warpMode, float flatness);

public void Warp (System.Drawing.PointF[] destPoints, System.Drawing.RectangleF srcRect, System.Drawing.Drawing2D.Matrix? matrix, System.Drawing.Drawing2D.WarpMode warpMode, float flatness);

public void Warp (System.Drawing.PointF[] destPoints, System.Drawing.RectangleF srcRect, System.Drawing.Drawing2D.Matrix matrix, System.Drawing.Drawing2D.WarpMode warpMode, float flatness);

member this.Warp : System.Drawing.PointF[] * System.Drawing.RectangleF * System.Drawing.Drawing2D.Matrix * System.Drawing.Drawing2D.WarpMode * single -> unit

Public Sub Warp (destPoints As PointF(), srcRect As RectangleF, matrix As Matrix, warpMode As WarpMode, flatness As Single)

参数

destPoints: PointF[]

srcRect: RectangleF

一个 RectangleF，表示转换为由 destPoints定义的平行四边形的矩形。

matrix: Matrix

指定要应用于路径的几何转换的 Matrix。

warpMode: WarpMode

一个 WarpMode 枚举，指定此扭曲操作是使用透视模式还是双线性模式。

flatness: Single

一个介于 0 到 1 的值，该值指定结果路径的平展程度。有关详细信息，请参阅 Flatten() 方法。

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：

创建路径并将一个矩形添加到路径。
将矩形绘制为黑色屏幕。
用透视扭曲来扭曲路径。
将扭曲的矩形（路径）绘制为红色的屏幕。

private:
   void WarpExample( PaintEventArgs^ e )
   {
      // Create a path and add a rectangle.
      GraphicsPath^ myPath = gcnew GraphicsPath;
      RectangleF srcRect = RectangleF(0,0,100,200);
      myPath->AddRectangle( srcRect );

      // Draw the source path (rectangle)to the screen.
      e->Graphics->DrawPath( Pens::Black, myPath );

      // Create a destination for the warped rectangle.
      PointF point1 = PointF(200,200);
      PointF point2 = PointF(400,250);
      PointF point3 = PointF(220,400);
      array<PointF>^ destPoints = {point1,point2,point3};

      // Create a translation matrix.
      Matrix^ translateMatrix = gcnew Matrix;
      translateMatrix->Translate( 100, 0 );

      // Warp the source path (rectangle).
      myPath->Warp( destPoints, srcRect, translateMatrix, WarpMode::Perspective, 0.5f );

      // Draw the warped path (rectangle) to the screen.
      e->Graphics->DrawPath( gcnew Pen( Color::Red ), myPath );
   }

private void WarpExample(PaintEventArgs e)
{
             
    // Create a path and add a rectangle.
    GraphicsPath myPath = new GraphicsPath();
    RectangleF srcRect = new RectangleF(0, 0, 100, 200);
    myPath.AddRectangle(srcRect);
             
    // Draw the source path (rectangle)to the screen.
    e.Graphics.DrawPath(Pens.Black, myPath);
             
    // Create a destination for the warped rectangle.
    PointF point1 = new PointF(200, 200);
    PointF point2 = new PointF(400, 250);
    PointF point3 = new PointF(220, 400);
    PointF[] destPoints = {point1, point2, point3};
             
    // Create a translation matrix.
    Matrix translateMatrix = new Matrix();
    translateMatrix.Translate(100, 0);
             
    // Warp the source path (rectangle).
    myPath.Warp(destPoints, srcRect, translateMatrix,
        WarpMode.Perspective, 0.5f);
             
    // Draw the warped path (rectangle) to the screen.
    e.Graphics.DrawPath(new Pen(Color.Red), myPath);
}

Public Sub WarpExample(ByVal e As PaintEventArgs)

    ' Create a path and add a rectangle.
    Dim myPath As New GraphicsPath
    Dim srcRect As New RectangleF(0, 0, 100, 200)
    myPath.AddRectangle(srcRect)

    ' Draw the source path (rectangle)to the screen.
    e.Graphics.DrawPath(Pens.Black, myPath)

    ' Create a destination for the warped rectangle.
    Dim point1 As New PointF(200, 200)
    Dim point2 As New PointF(400, 250)
    Dim point3 As New PointF(220, 400)
    Dim destPoints As PointF() = {point1, point2, point3}

    ' Create a translation matrix.
    Dim translateMatrix As New Matrix
    translateMatrix.Translate(100, 0)

    ' Warp the source path (rectangle).
    myPath.Warp(destPoints, srcRect, translateMatrix, _
    WarpMode.Perspective, 0.5F)

    ' Draw the warped path (rectangle) to the screen.
    e.Graphics.DrawPath(New Pen(Color.Red), myPath)
End Sub

适用于

Warp(ReadOnlySpan<PointF>, RectangleF, Matrix, WarpMode, Single)

Source:: GraphicsPath.cs

Source:: GraphicsPath.cs

public void Warp (ReadOnlySpan<System.Drawing.PointF> destPoints, System.Drawing.RectangleF srcRect, System.Drawing.Drawing2D.Matrix? matrix = default, System.Drawing.Drawing2D.WarpMode warpMode = System.Drawing.Drawing2D.WarpMode.Perspective, float flatness = 0.25);

member this.Warp : ReadOnlySpan<System.Drawing.PointF> * System.Drawing.RectangleF * System.Drawing.Drawing2D.Matrix * System.Drawing.Drawing2D.WarpMode * single -> unit

Public Sub Warp (destPoints As ReadOnlySpan(Of PointF), srcRect As RectangleF, Optional matrix As Matrix = Nothing, Optional warpMode As WarpMode = System.Drawing.Drawing2D.WarpMode.Perspective, Optional flatness As Single = 0.25)

参数

destPoints: ReadOnlySpan<PointF>

srcRect: RectangleF

matrix: Matrix

warpMode: WarpMode

flatness: Single

适用于

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通过

GraphicsPath.Warp 方法

定义

重载

Warp(PointF[], RectangleF)

参数

示例

适用于

Warp(PointF[], RectangleF, Matrix)

参数

示例

适用于

Warp(PointF[], RectangleF, Matrix, WarpMode)

参数

示例

适用于

Warp(PointF[], RectangleF, Matrix, WarpMode, Single)

参数

示例

适用于

Warp(ReadOnlySpan<PointF>, RectangleF, Matrix, WarpMode, Single)

参数

适用于

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