You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
55 lines
1.8 KiB
55 lines
1.8 KiB
// David Eberly, Geometric Tools, Redmond WA 98052
|
|
// Copyright (c) 1998-2021
|
|
// Distributed under the Boost Software License, Version 1.0.
|
|
// https://www.boost.org/LICENSE_1_0.txt
|
|
// https://www.geometrictools.com/License/Boost/LICENSE_1_0.txt
|
|
// Version: 4.0.2019.08.13
|
|
|
|
#pragma once
|
|
|
|
#include <Mathematics/DistLine3AlignedBox3.h>
|
|
#include <Mathematics/Ray.h>
|
|
|
|
namespace gte
|
|
{
|
|
template <typename Real>
|
|
class DCPQuery<Real, Ray3<Real>, AlignedBox3<Real>>
|
|
{
|
|
public:
|
|
struct Result
|
|
{
|
|
Real distance, sqrDistance;
|
|
Real rayParameter;
|
|
Vector3<Real> closestPoint[2];
|
|
};
|
|
|
|
Result operator()(Ray3<Real> const& ray, AlignedBox3<Real> const& box)
|
|
{
|
|
Result result;
|
|
|
|
Line3<Real> line(ray.origin, ray.direction);
|
|
DCPQuery<Real, Line3<Real>, AlignedBox3<Real>> lbQuery;
|
|
auto lbResult = lbQuery(line, box);
|
|
|
|
if (lbResult.lineParameter >= (Real)0)
|
|
{
|
|
result.sqrDistance = lbResult.sqrDistance;
|
|
result.distance = lbResult.distance;
|
|
result.rayParameter = lbResult.lineParameter;
|
|
result.closestPoint[0] = lbResult.closestPoint[0];
|
|
result.closestPoint[1] = lbResult.closestPoint[1];
|
|
}
|
|
else
|
|
{
|
|
DCPQuery<Real, Vector3<Real>, AlignedBox3<Real>> pbQuery;
|
|
auto pbResult = pbQuery(ray.origin, box);
|
|
result.sqrDistance = pbResult.sqrDistance;
|
|
result.distance = pbResult.distance;
|
|
result.rayParameter = (Real)0;
|
|
result.closestPoint[0] = ray.origin;
|
|
result.closestPoint[1] = pbResult.boxClosest;
|
|
}
|
|
return result;
|
|
}
|
|
};
|
|
}
|
|
|