Transform Свойство (DrawingEngine)

В этом разделе

Возвращает или задает копию преобразования геометрического мира для этого механизма рисования.

Синтаксис

Visual Basic
C#
Управляемые расширения для C++
C++/CLI

'Declaration

Public MustOverride Property Transform As Vintasoft.Imaging.AffineMatrix

public abstract Vintasoft.Imaging.AffineMatrix Transform { get; set; }

public: __property abstract Vintasoft.Imaging.AffineMatrix* get_Transform();
public: __property abstract void set_Transform(
   Vintasoft.Imaging.AffineMatrix* value
);

public:
abstract property Vintasoft.Imaging.AffineMatrix^ Transform {
   Vintasoft.Imaging.AffineMatrix^ get();
   void set(Vintasoft.Imaging.AffineMatrix^ value);
}

Property Value

Копия AffineMatrix, которая представляет преобразование геометрического мира для этого механизма рисования.

Пример

Вот пример, показывающий, как изменить преобразование механизма с помощью свойства DrawingEngine.Transform.

VB.NET


''' <summary>
''' Draws an image on specified drawing engine.
''' </summary>
''' <param name="drawingEngine">Drawing engine.</param>
''' <param name="area">Area to draw objects in.</param>
Public Shared Sub DrawImageExample(drawingEngine As DrawingEngine, area As RectangleF)
    ' path to image file for drawing
    ' this image is located in <install path>/VintaSoft/Imaging .NET/Images/
    Dim imagePath As String = "AutoContrast.jpg"

    ' create VintaSoft image
    Using image As New VintasoftImage(imagePath)
        ' create transform holder to save current engine transform and restore it aftewards
        Using drawingEngine.CreateTransformHolder()
            ' create image destination rectangle
            Dim imageRect As New RectangleF(area.X + area.Width * 0.25F, area.Y + area.Height * 0.25F, area.Width / 2, area.Height / 2)
            ' apply rotation transform to drawing engine
            drawingEngine.Transform = AffineMatrix.CreateRotation(35, imageRect.X + imageRect.Width / 2, imageRect.Y + imageRect.Height / 2)
            ' draw image
            drawingEngine.DrawImage(image, imageRect)
        End Using
    End Using
End Sub


/// <summary>
/// Draws an image on specified drawing engine.
/// </summary>
/// <param name="drawingEngine">Drawing engine.</param>
/// <param name="area">Area to draw objects in.</param>
public static void DrawImageExample(DrawingEngine drawingEngine, RectangleF area)
{
    // path to image file for drawing
    // this image is located in <install path>/VintaSoft/Imaging .NET/Images/
    string imagePath = "AutoContrast.jpg";

    // create VintaSoft image
    using (VintasoftImage image = new VintasoftImage(imagePath))
    // create transform holder to save current engine transform and restore it aftewards
    using (drawingEngine.CreateTransformHolder())
    {
        // create image destination rectangle
        RectangleF imageRect = new RectangleF(area.X + area.Width * 0.25f, area.Y + area.Height * 0.25f, area.Width / 2, area.Height / 2);
        // apply rotation transform to drawing engine
        drawingEngine.Transform = AffineMatrix.CreateRotation(35, imageRect.X + imageRect.Width / 2, imageRect.Y + imageRect.Height / 2);
        // draw image
        drawingEngine.DrawImage(image, imageRect);
    }
}

Требования

Целевые платформы: .NET 9; .NET 8; .NET 7; .NET 6; .NET Framework 4.8, 4.7, 4.6, 4.5, 4.0, 3.5

Смотрите также

Справочник

DrawingEngine Class
Члены типа DrawingEngine

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