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// Geometric Tools, LLC
// Copyright (c) 1998-2014
// Distributed under the Boost Software License, Version 1.0.
// http://www.boost.org/LICENSE_1_0.txt
// http://www.geometrictools.com/License/Boost/LICENSE_1_0.txt
//
// File Version: 5.0.1 (2010/10/01)
#include "Wm5MathematicsPCH.h"
#include "Wm5DistPoint3Plane3.h"
namespace Wm5
{
//----------------------------------------------------------------------------
template <typename Real>
DistPoint3Plane3<Real>::DistPoint3Plane3 (const Vector3<Real>& point,
const Plane3<Real>& plane)
:
mPoint(&point),
mPlane(&plane)
{
}
//----------------------------------------------------------------------------
template <typename Real>
const Vector3<Real>& DistPoint3Plane3<Real>::GetPoint () const
{
return *mPoint;
}
//----------------------------------------------------------------------------
template <typename Real>
const Plane3<Real>& DistPoint3Plane3<Real>::GetPlane () const
{
return *mPlane;
}
//----------------------------------------------------------------------------
template <typename Real>
Real DistPoint3Plane3<Real>::Get ()
{
Real signedDistance = mPlane->Normal.Dot(*mPoint) - mPlane->Constant;
mClosestPoint0 = *mPoint;
mClosestPoint1 = *mPoint - signedDistance*mPlane->Normal;
return Math<Real>::FAbs(signedDistance);
}
//----------------------------------------------------------------------------
template <typename Real>
Real DistPoint3Plane3<Real>::GetSquared ()
{
Real signedDistance = mPlane->Normal.Dot(*mPoint) - mPlane->Constant;
mClosestPoint0 = *mPoint;
mClosestPoint1 = *mPoint - signedDistance*mPlane->Normal;
return signedDistance*signedDistance;
}
//----------------------------------------------------------------------------
template <typename Real>
Real DistPoint3Plane3<Real>::Get (Real t, const Vector3<Real>& velocity0,
const Vector3<Real>& velocity1)
{
Vector3<Real> movedPoint = *mPoint + t*velocity0;
Real movedConstant = mPlane->Constant + t*mPlane->Normal.Dot(velocity1);
Plane3<Real> movedPlane(mPlane->Normal, movedConstant);
return DistPoint3Plane3<Real>(movedPoint, movedPlane).Get();
}
//----------------------------------------------------------------------------
template <typename Real>
Real DistPoint3Plane3<Real>::GetSquared (Real t,
const Vector3<Real>& velocity0, const Vector3<Real>& velocity1)
{
Vector3<Real> movedPoint = *mPoint + t*velocity0;
Real movedConstant = mPlane->Constant + t*mPlane->Normal.Dot(velocity1);
Plane3<Real> movedPlane(mPlane->Normal, movedConstant);
return DistPoint3Plane3<Real>(movedPoint, movedPlane).GetSquared();
}
//----------------------------------------------------------------------------
//----------------------------------------------------------------------------
// Explicit instantiation.
//----------------------------------------------------------------------------
template WM5_MATHEMATICS_ITEM
class DistPoint3Plane3<float>;
template WM5_MATHEMATICS_ITEM
class DistPoint3Plane3<double>;
//----------------------------------------------------------------------------
}
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