//------------------------------------------------------
//
// Public Properties
//
//------------------------------------------------------
//------------------------------------------------------
//
// Public Events
//
//------------------------------------------------------
//------------------------------------------------------
//
// Internal Methods
//
//------------------------------------------------------
#region Internal Methods
// NOTE: Geometry3D hit testing takes the rayParams in the outer space of the
// Geometry3D. That is, RayHitTest() will apply this geometry's
// transform to the ray for the caller.
//
// This is different than Visual hit testing which does not transform
// the hit testing parameters by the Visual's transform.
internal void RayHitTest(RayHitTestParameters rayParams, FaceType facesToHit)
{
Debug.Assert(facesToHit != FaceType.None,
"Caller should make sure we're trying to hit something");
Rect3D bounds = Bounds;
if (bounds.IsEmpty)
{
return;
}
//
Point3D origin;
Vector3D direction;
rayParams.GetLocalLine(out origin, out direction);
if (LineUtil.ComputeLineBoxIntersection(ref origin, ref direction, ref bounds, rayParams.IsRay))
{
RayHitTestCore(rayParams, facesToHit);
}
//
}
//------------------------------------------------------
//
// Public Properties
//
//------------------------------------------------------
//------------------------------------------------------
//
// Public Events
//
//------------------------------------------------------
//------------------------------------------------------
//
// Internal Methods
//
//------------------------------------------------------
#region Internal Methods
// NOTE: Geometry3D hit testing takes the rayParams in the outer space of the
// Geometry3D. That is, RayHitTest() will apply this geometry's
// transform to the ray for the caller.
//
// This is different than Visual hit testing which does not transform
// the hit testing parameters by the Visual's transform.
internal void RayHitTest(RayHitTestParameters rayParams, FaceType facesToHit)
{
Debug.Assert(facesToHit != FaceType.None,
"Caller should make sure we're trying to hit something");
Rect3D bounds = Bounds;
if (bounds.IsEmpty)
{
return;
}
// Geometry3D's do not yet support a Transform property
//
// Transform3D transform = Transform;
// rayParams.PushTransform(transform);
Point3D origin;
Vector3D direction;
rayParams.GetLocalLine(out origin, out direction);
if (LineUtil.ComputeLineBoxIntersection(ref origin, ref direction, ref bounds, rayParams.IsRay))
{
RayHitTestCore(rayParams, facesToHit);
}
// Geometry3D's do not yet support a Transform property
//
// rayParams.PopTransform(transform);
}