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RayHitTestParameters.Origin Propriedade

  • Referência

Definição

Namespace:
System.Windows.Media.Media3D
Assembly:
PresentationCore.dll

Obtém a origem do raio ao longo do qual realizar o teste de clique.

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

Valor da propriedade

Point3D

Origem do raio ao longo do qual fazer o teste.

Exemplos

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)

Comentários

Observe que a camada visual dá suporte a testes de clique em todos os objetos em um ponto ou geometria, não apenas no objeto mais alto. Um teste de ocorrência 2D também retornará resultados 3D diretamente sob o ponto ou geometria especificado.

Aplica-se a

Confira também