Matrix.TransformPoints 方法
定义
重要
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将此 Matrix 表示的几何转换应用于点数组。
重载
TransformPoints(ReadOnlySpan<PointF>) | |
TransformPoints(ReadOnlySpan<Point>) | |
TransformPoints(PointF[]) |
将此 Matrix 表示的几何变换应用于指定的点数组。 |
TransformPoints(Point[]) |
将此 Matrix 表示的几何变换应用于指定的点数组。 |
TransformPoints(ReadOnlySpan<PointF>)
- Source:
- Matrix.cs
public:
void TransformPoints(ReadOnlySpan<System::Drawing::PointF> pts);
public void TransformPoints (scoped ReadOnlySpan<System.Drawing.PointF> pts);
member this.TransformPoints : ReadOnlySpan<System.Drawing.PointF> -> unit
Public Sub TransformPoints (pts As ReadOnlySpan(Of PointF))
参数
- pts
- ReadOnlySpan<PointF>
适用于
TransformPoints(ReadOnlySpan<Point>)
- Source:
- Matrix.cs
public:
void TransformPoints(ReadOnlySpan<System::Drawing::Point> pts);
public void TransformPoints (scoped ReadOnlySpan<System.Drawing.Point> pts);
member this.TransformPoints : ReadOnlySpan<System.Drawing.Point> -> unit
Public Sub TransformPoints (pts As ReadOnlySpan(Of Point))
参数
- pts
- ReadOnlySpan<Point>
适用于
TransformPoints(PointF[])
- Source:
- Matrix.cs
- Source:
- Matrix.cs
- Source:
- Matrix.cs
- Source:
- Matrix.cs
- Source:
- Matrix.cs
将此 Matrix 表示的几何变换应用于指定的点数组。
public:
void TransformPoints(cli::array <System::Drawing::PointF> ^ pts);
public:
void TransformPoints(... cli::array <System::Drawing::PointF> ^ pts);
public void TransformPoints (System.Drawing.PointF[] pts);
public void TransformPoints (params System.Drawing.PointF[] pts);
member this.TransformPoints : System.Drawing.PointF[] -> unit
Public Sub TransformPoints (pts As PointF())
Public Sub TransformPoints (ParamArray pts As PointF())
参数
示例
有关示例,请参阅 TransformPoints(Point[])。
适用于
TransformPoints(Point[])
- Source:
- Matrix.cs
- Source:
- Matrix.cs
- Source:
- Matrix.cs
- Source:
- Matrix.cs
- Source:
- Matrix.cs
将此 Matrix 表示的几何变换应用于指定的点数组。
public:
void TransformPoints(cli::array <System::Drawing::Point> ^ pts);
public:
void TransformPoints(... cli::array <System::Drawing::Point> ^ pts);
public void TransformPoints (System.Drawing.Point[] pts);
public void TransformPoints (params System.Drawing.Point[] pts);
member this.TransformPoints : System.Drawing.Point[] -> unit
Public Sub TransformPoints (pts As Point())
Public Sub TransformPoints (ParamArray pts As Point())
参数
示例
下面的代码示例旨在与 Windows 窗体一起使用,它需要 PaintEventArgse
Paint 事件对象。 该代码执行以下操作:
创建构成矩形的点数组。
绘制此点数组(在应用缩放转换之前在屏幕上)(蓝色矩形)。
创建矩阵并将其缩放为 x 轴中的 3,在 y 轴中创建 2。
将此矩阵转换应用于点数组。
将转换后的数组绘制到屏幕(红色矩形)。
请注意,红色矩形已按 x 轴中的 3 因子缩放,在 y 轴中缩放 2,包括矩形的左上角(矩形的起点)。
public:
void TransformPointsExample( PaintEventArgs^ e )
{
Pen^ myPen = gcnew Pen( Color::Blue,1.0f );
Pen^ myPen2 = gcnew Pen( Color::Red,1.0f );
// Create an array of points.
array<Point>^ myArray = {Point(20,20),Point(120,20),Point(120,120),Point(20,120),Point(20,20)};
// Draw the Points to the screen before applying the
// transform.
e->Graphics->DrawLines( myPen, myArray );
// Create a matrix and scale it.
Matrix^ myMatrix = gcnew Matrix;
myMatrix->Scale( 3, 2, MatrixOrder::Append );
myMatrix->TransformPoints( myArray );
// Draw the Points to the screen again after applying the
// transform.
e->Graphics->DrawLines( myPen2, myArray );
}
public void TransformPointsExample(PaintEventArgs e)
{
Pen myPen = new Pen(Color.Blue, 1);
Pen myPen2 = new Pen(Color.Red, 1);
// Create an array of points.
Point[] myArray =
{
new Point(20, 20),
new Point(120, 20),
new Point(120, 120),
new Point(20, 120),
new Point(20,20)
};
// Draw the Points to the screen before applying the
// transform.
e.Graphics.DrawLines(myPen, myArray);
// Create a matrix and scale it.
Matrix myMatrix = new Matrix();
myMatrix.Scale(3, 2, MatrixOrder.Append);
myMatrix.TransformPoints(myArray);
// Draw the Points to the screen again after applying the
// transform.
e.Graphics.DrawLines(myPen2, myArray);
}
Public Sub TransformPointsExample(ByVal e As PaintEventArgs)
Dim myPen As New Pen(Color.Blue, 1)
Dim myPen2 As New Pen(Color.Red, 1)
' Create an array of points.
Dim myArray As Point() = {New Point(20, 20), New Point(120, 20), _
New Point(120, 120), New Point(20, 120), New Point(20, 20)}
' Draw the Points to the screen before applying the
' transform.
e.Graphics.DrawLines(myPen, myArray)
' Create a matrix and scale it.
Dim myMatrix As New Matrix
myMatrix.Scale(3, 2, MatrixOrder.Append)
myMatrix.TransformPoints(myArray)
' Draw the Points to the screen again after applying the
' transform.
e.Graphics.DrawLines(myPen2, myArray)
End Sub