RayHitTestParameters.Origin Property
Definition
Important
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Gets the origin of the ray along which to hit test.
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
Property Value
Origin of the ray along which to hit test.
Examples
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)
Remarks
Note that the visual layer supports hit testing against all objects under a point or geometry, not just the topmost object. A 2D hit test will also return 3D results directly under the specified point or geometry.
Applies to
See also
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