RayHitTestParameters.Origin Özellik

  • Başvuru

Tanım

Ad Alanı:
System.Windows.Media.Media3D
Bütünleştirilmiş Kod:
PresentationCore.dll

Testin isabet ettiği ışının kaynağını alır.

public:
 property System::Windows::Media::Media3D::Point3D Origin { System::Windows::Media::Media3D::Point3D get(); };
public System.Windows.Media.Media3D.Point3D Origin { get; }
member this.Origin : System.Windows.Media.Media3D.Point3D
Public ReadOnly Property Origin As Point3D

Özellik Değeri

Point3D

Testin isabet ettiği ışının kökeni.

Örnekler

public void HitTest(object sender, System.Windows.Input.MouseButtonEventArgs args)
{
    Point mouseposition = args.GetPosition(myViewport);
    Point3D testpoint3D = new Point3D(mouseposition.X, mouseposition.Y, 0);
    Vector3D testdirection = new Vector3D(mouseposition.X, mouseposition.Y, 10);
    PointHitTestParameters pointparams = new PointHitTestParameters(mouseposition);
    RayHitTestParameters rayparams = new RayHitTestParameters(testpoint3D, testdirection);

    //test for a result in the Viewport3D
    VisualTreeHelper.HitTest(myViewport, null, HTResult, pointparams);

Public Sub HitTest(ByVal sender As Object, ByVal args As MouseButtonEventArgs)
    Dim mouseposition As Point = args.GetPosition(myViewport)
    Dim testpoint3D As New Point3D(mouseposition.X, mouseposition.Y, 0)
    Dim testdirection As New Vector3D(mouseposition.X, mouseposition.Y, 10)
    Dim pointparams As New PointHitTestParameters(mouseposition)
    Dim rayparams As New RayHitTestParameters(testpoint3D, testdirection)

    'test for a result in the Viewport3D
    VisualTreeHelper.HitTest(myViewport, Nothing, AddressOf HTResult, pointparams)

Açıklamalar

Görsel katmanının yalnızca en üstteki nesnenin değil, nokta veya geometrinin altındaki tüm nesnelere yönelik isabet testini desteklediğini unutmayın. 2B isabet testi de doğrudan belirtilen nokta veya geometrinin altında 3B sonuçlar döndürür.

Şunlara uygulanır

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