Point4D.Offset(Double, Double, Double, Double) Method

Reference

Definition

Namespace:: System.Windows.Media.Media3D

Assembly:: PresentationCore.dll

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Translates the Point4D structure by the specified amounts.

public:
 void Offset(double deltaX, double deltaY, double deltaZ, double deltaW);

public void Offset (double deltaX, double deltaY, double deltaZ, double deltaW);

member this.Offset : double * double * double * double -> unit

Public Sub Offset (deltaX As Double, deltaY As Double, deltaZ As Double, deltaW As Double)

Parameters

deltaX: Double

The amount to offset the X coordinate of this Point4D structure.

deltaY: Double

The amount to offset the Y coordinate of this Point4D structure.

deltaZ: Double

The amount to offset the Z coordinate of this Point4D structure.

deltaW: Double

The amount to offset the W coordinate of this Point4D structure.

Examples

The following example shows how to offset a Point4D structure.

// Offsets the X, Y, Z, and W values of a Point4D.

Point4D point1 = new Point4D(10, 5, 1, 4);

point1.Offset(20, 30, 40, 50);
// point1 is equal to (30, 35, 41, 54)

// Displaying Results
syntaxString = "point1.Offset(20, 30, 41, 54);";
resultType = "Point4D";
operationString = "Offsetting a Point4D";
ShowResults(point1.ToString(), syntaxString, resultType, operationString);

' Offsets the X, Y, Z, and W values of a Point4D.

Dim point1 As New Point4D(10, 5, 1, 4)

point1.Offset(20, 30, 40, 50)
' point1 is equal to (30, 35, 41, 54)

' Displaying Results
syntaxString = "point1.Offset(20, 30, 41, 54)"
resultType = "Point4D"
operationString = "Offsetting a Point4D"
ShowResults(point1.ToString(), syntaxString, resultType, operationString)

Remarks

Note that calling the Offset method will only have an effect if you can change the W, X, Y, and Z properties directly. Because Point4D is a value type, if you reference a Point4D object by using a property or indexer, you get a copy of the object, not a reference to the object. If you attempt to change W, X, Y, or Z on a property or indexer reference, a compiler error occurs. Similarly, calling Offset on the property or indexer will not change the underlying object. If you want to change the value of a Point4D that is referenced as a property or indexer, create a new Point4D, modify its fields, and then assign the Point4D back to the property or indexer.

Applies to

แชร์ผ่าน