Sdílet prostřednictvím


AnalysisRegionBase.Union Method (Int32, Int32, Int32, Int32)

Expands the area of this AnalysisRegionBase to the area created by its union with the specified rectangle.

Namespace:  System.Windows.Ink.AnalysisCore
Assembly:  IACore (in IACore.dll)

Syntax

'Declaration
Public Sub Union ( _
    left As Integer, _
    top As Integer, _
    right As Integer, _
    bottom As Integer _
)
'Usage
Dim instance As AnalysisRegionBase 
Dim left As Integer 
Dim top As Integer 
Dim right As Integer 
Dim bottom As Integer

instance.Union(left, top, right, bottom)
public void Union(
    int left,
    int top,
    int right,
    int bottom
)
public:
void Union(
    int left, 
    int top, 
    int right, 
    int bottom
)
public function Union(
    left : int, 
    top : int, 
    right : int, 
    bottom : int
)

Parameters

  • left
    Type: System.Int32

    The left bound of the rectangle with which to combine, in ink-space coordinates.

  • top
    Type: System.Int32

    The top bound of the rectangle with which to combine, in ink-space coordinates.

  • right
    Type: System.Int32

    The right bound of the rectangle with which to combine, in ink-space coordinates.

  • bottom
    Type: System.Int32

    The bottom bound of the rectangle with which to combine, in ink-space coordinates.

Remarks

All parameters are in HIMETRIC units.

If either area is infinite, the new area is also infinite.

Examples

The example uses Exclude, Intersect, and Union to modify the area of an existing AnalysisRegionBase named theFirstAnalysisRegionBase.

' Extend an AnalysisRegionBase using the Union method and 
' an AnalysisRegionBase.
theFirstAnalysisRegionBase.Union(theSecondAnalysisRegionBase)

' Extend an AnalysisRegionBase using the Union method and a rectangle.
theFirstAnalysisRegionBase.Union(0, 500, 3000, 3500)

' Restrict an AnalysisRegionBase using the Intersect method and 
' an AnalysisRegionBase.
theFirstAnalysisRegionBase.Intersect(theSecondAnalysisRegionBase)

' Restrict an AnalysisRegionBase using the Intersect method and a rectangle.
theFirstAnalysisRegionBase.Intersect(1000, 1000, 5000, 5000)

' Restrict an AnalysisRegionBase using the Exclude method and 
' an AnalysisRegionBase.
theFirstAnalysisRegionBase.Exclude(theSecondAnalysisRegionBase)

' Modify an AnalysisRegionBase using the Exclude method and a rectangle.
theFirstAnalysisRegionBase.Exclude(1500, 1500, 2500, 2500)
// Extend an AnalysisRegionBase using the Union method and 
// an AnalysisRegionBase.
theFirstAnalysisRegionBase.Union(theSecondAnalysisRegionBase);

// Extend an AnalysisRegionBase using the Union method and a rectangle.
theFirstAnalysisRegionBase.Union(0, 500, 3000, 3500);

// Restrict an AnalysisRegionBase using the Intersect method and 
// an AnalysisRegionBase.
theFirstAnalysisRegionBase.Intersect(theSecondAnalysisRegionBase);

// Restrict an AnalysisRegionBase using the Intersect method and a rectangle.
theFirstAnalysisRegionBase.Intersect(1000, 1000, 5000, 5000);

// Restrict an AnalysisRegionBase using the Exclude method and 
// an AnalysisRegionBase.
theFirstAnalysisRegionBase.Exclude(theSecondAnalysisRegionBase);

// Modify an AnalysisRegionBase using the Exclude method and a rectangle.
theFirstAnalysisRegionBase.Exclude(1500, 1500, 2500, 2500);

Platforms

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Version Information

.NET Framework

Supported in: 3.0

See Also

Reference

AnalysisRegionBase Class

AnalysisRegionBase Members

Union Overload

System.Windows.Ink.AnalysisCore Namespace

AnalysisRegionBase.Exclude

AnalysisRegionBase.Intersect