Graphics.PageScale Özellik

Tanım

Ad Alanı:

System.Drawing

Bütünleştirilmiş Kod:

System.Drawing.Common.dll

Paket:

System.Drawing.Common v8.0.0

Kaynak:

Graphics.cs

Bu Graphicsiçin dünya birimleri ve sayfa birimleri arasında ölçeklendirmeyi alır veya ayarlar.

public:
 property float PageScale { float get(); void set(float value); };

public float PageScale { get; set; }

member this.PageScale : single with get, set

Public Property PageScale As Single

Özellik Değeri

Single

Bu özellik, bu Graphicsiçin dünya birimleri ile sayfa birimleri arasında ölçeklendirme için bir değer belirtir.

Örnekler

Aşağıdaki kod örneği, bir dikdörtgen çizerken ölçeği ve kaynağı değiştirmek için ve TranslateTransform üyelerinin nasıl kullanılacağını PageScale gösterir.

Bu örnek, Windows Forms ile kullanılmak üzere tasarlanmıştır. Kodu bir forma yapıştırın ve formun ChangePageScaleAndTranslateTransformPaint olayını işlerken yöntemini olarak geçirin ePaintEventArgs.

private:
   void ChangePageScaleAndTranslateTransform( PaintEventArgs^ e )
   {
      // Create a rectangle.
      Rectangle rectangle1 = Rectangle(20,20,50,100);

      // Draw its outline.
      e->Graphics->DrawRectangle( Pens::SlateBlue, rectangle1 );

      // Change the page scale.  
      e->Graphics->PageScale = 2.0F;

      // Call TranslateTransform to change the origin of the
      //  Graphics object.
      e->Graphics->TranslateTransform( 10.0F, 10.0F );

      // Draw the rectangle again.
      e->Graphics->DrawRectangle( Pens::Tomato, rectangle1 );

      // Set the page scale and origin back to their original values.
      e->Graphics->PageScale = 1.0F;
      e->Graphics->ResetTransform();
      SolidBrush^ transparentBrush = gcnew SolidBrush( Color::FromArgb( 50, Color::Yellow ) );

      // Create a new rectangle with the coordinates you expect
      // after setting PageScale and calling TranslateTransform:
      // x = (10 + 20) * 2
      // y = (10 + 20) * 2
      // Width = 50 * 2
      // Length = 100 * 2
      Rectangle newRectangle = Rectangle(60,60,100,200);

      // Fill in the rectangle with a semi-transparent color.
      e->Graphics->FillRectangle( transparentBrush, newRectangle );
   }

private void ChangePageScaleAndTranslateTransform(PaintEventArgs e)
{

    // Create a rectangle.
    Rectangle rectangle1 = new Rectangle(20, 20, 50, 100);

    // Draw its outline.
    e.Graphics.DrawRectangle(Pens.SlateBlue, rectangle1);

    // Change the page scale.  
    e.Graphics.PageScale = 2.0F;

    // Call TranslateTransform to change the origin of the
    //  Graphics object.
    e.Graphics.TranslateTransform(10.0F, 10.0F);

    // Draw the rectangle again.
    e.Graphics.DrawRectangle(Pens.Tomato, rectangle1);

    // Set the page scale and origin back to their original values.
    e.Graphics.PageScale = 1.0F;
    e.Graphics.ResetTransform();

    SolidBrush transparentBrush = new SolidBrush(Color.FromArgb(50,
        Color.Yellow));

    // Create a new rectangle with the coordinates you expect
    // after setting PageScale and calling TranslateTransform:
    // x = (10 + 20) * 2
    // y = (10 + 20) * 2
    // Width = 50 * 2
    // Length = 100 * 2
    Rectangle newRectangle = new Rectangle(60, 60, 100, 200);

    // Fill in the rectangle with a semi-transparent color.
    e.Graphics.FillRectangle(transparentBrush, newRectangle);
}

Private Sub ChangePageScaleAndTranslateTransform(ByVal e As _
    PaintEventArgs)

    ' Create a rectangle.
    Dim rectangle1 As New Rectangle(20, 20, 50, 100)

    ' Draw its outline.
    e.Graphics.DrawRectangle(Pens.SlateBlue, rectangle1)

    ' Change the page scale.  
    e.Graphics.PageScale = 2.0F

    ' Call TranslateTransform to change the origin of the
    '  Graphics object.
    e.Graphics.TranslateTransform(10.0F, 10.0F)

    ' Draw the rectangle again.
    e.Graphics.DrawRectangle(Pens.Tomato, rectangle1)

    ' Set the page scale and origin back to their original values.
    e.Graphics.PageScale = 1.0F
    e.Graphics.ResetTransform()

    Dim transparentBrush As New SolidBrush(Color.FromArgb(50, Color.Yellow))

    ' Create a new rectangle with the coordinates you expect
    ' after setting PageScale and calling TranslateTransform:
    ' x = (10 + 20) * 2
    ' y = (10 + 20) * 2
    ' Width = 50 * 2
    ' Length = 100 * 2
    Dim newRectangle As Rectangle = New Rectangle(60, 60, 100, 200)

    ' Fill in the rectangle with a semi-transparent color.
    e.Graphics.FillRectangle(transparentBrush, newRectangle)
End Sub

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