Metodo AnalysisRegion.Union (Rect)

Articolo
10/29/2008

Aggiornamento: novembre 2007

Espande l'area dell'oggetto AnalysisRegion all'area creata dall'unione con il rettangolo specificato.

Spazio dei nomi: System.Windows.Ink
Assembly: IAWinFX (in IAWinFX.dll)

Sintassi

'Dichiarazione
Public Sub Union ( _
    rectangle As Rect _
)
'Utilizzo
Dim instance As AnalysisRegion
Dim rectangle As Rect

instance.Union(rectangle)

public void Union(
    Rect rectangle
)

public:
void Union(
    Rect rectangle
)

public void Union(
    Rect rectangle
)

public function Union(
    rectangle : Rect
)

Parametri

rectangle
Tipo: System.Windows.Rect
Rettangolo con cui eseguire l'unione, in coordinate dello spazio di input penna.

Note

Il metodo Union genera un'eccezione ArgumentOutOfRangeException se i limiti di rectangle non sono compresi tra i valori definiti da MinXY e MaxXY.

Esempi

In questo esempio vengono creati due oggetti AnalysisRegion. Vengono utilizzati i metodi Intersect, Union e Exclude per modificare le aree degli oggetti.

' Create an infinite AnalysisRegion.
Dim theFirstAnalysisRegion As New AnalysisRegion()
' Create a finite AnalysisRegion.
Dim theSecondAnalysisRegion As New AnalysisRegion(New Rect(100, 100, 200, 200))
' Extend an AnalysisRegion using the Union method and an AnalysisRegion.
theFirstAnalysisRegion.Union(theSecondAnalysisRegion)

' Extend an AnalysisRegion using the Union method and a rectangle.
theFirstAnalysisRegion.Union(New Rect(100, 100, 200, 200))

' Restrict an AnalysisRegion using the Intersect method and an AnalysisRegion.
theFirstAnalysisRegion.Intersect(theSecondAnalysisRegion)

' Restrict an AnalysisRegion using the Intersect method and a rectangle.
theFirstAnalysisRegion.Intersect(New Rect(100, 100, 200, 200))

' Modify an AnalysisRegion using the Exclude method and an AnalysisRegion.
theFirstAnalysisRegion.Exclude(theSecondAnalysisRegion)

' Modify an AnalysisRegion using the Exclude method and a rectangle.
theFirstAnalysisRegion.Exclude(New Rect(100, 100, 200, 200))

// Create an infinite AnalysisRegion.
AnalysisRegion theFirstAnalysisRegion =
    new AnalysisRegion();

// Create a finite AnalysisRegion.
AnalysisRegion theSecondAnalysisRegion =
    new AnalysisRegion(
        new Rect(100, 100, 200, 200));

// Extend an AnalysisRegion using the Union method and an AnalysisRegion.
theFirstAnalysisRegion.Union(theSecondAnalysisRegion);

// Extend an AnalysisRegion using the Union method and a rectangle.
theFirstAnalysisRegion.Union(new Rect(100, 100, 200, 200));

// Restrict an AnalysisRegion using the Intersect method and an AnalysisRegion.
theFirstAnalysisRegion.Intersect(theSecondAnalysisRegion);

// Restrict an AnalysisRegion using the Intersect method and a rectangle.
theFirstAnalysisRegion.Intersect(new Rect(100, 100, 200, 200));

// Modify an AnalysisRegion using the Exclude method and an AnalysisRegion.
theFirstAnalysisRegion.Exclude(theSecondAnalysisRegion);

// Modify an AnalysisRegion using the Exclude method and a rectangle.
theFirstAnalysisRegion.Exclude(new Rect(100, 100, 200, 200));

Piattaforme

Windows Vista

.NET Framework e .NET Compact Framework non supportano tutte le versioni di ciascuna piattaforma. Per un elenco delle versioni supportate, vedere Requisiti di sistema di .NET Framework.