45 lines
1.4 KiB
C++
45 lines
1.4 KiB
C++
// This file is part of libigl, a simple c++ geometry processing library.
|
|
//
|
|
// Copyright (C) 2015 Alec Jacobson <alecjacobson@gmail.com>
|
|
//
|
|
// This Source Code Form is subject to the terms of the Mozilla Public License
|
|
// v. 2.0. If a copy of the MPL was not distributed with this file, You can
|
|
// obtain one at http://mozilla.org/MPL/2.0/.
|
|
#ifndef IGL_RAY_BOX_INTERSECT_H
|
|
#define IGL_RAY_BOX_INTERSECT_H
|
|
#include "igl_inline.h"
|
|
#include <Eigen/Core>
|
|
#include <Eigen/Geometry>
|
|
namespace igl
|
|
{
|
|
// Determine whether a ray origin+t*dir and box intersect within the ray's parameterized
|
|
// range (t0,t1)
|
|
//
|
|
// Inputs:
|
|
// source 3-vector origin of ray
|
|
// dir 3-vector direction of ray
|
|
// box axis aligned box
|
|
// t0 hit only if hit.t less than t0
|
|
// t1 hit only if hit.t greater than t1
|
|
// Outputs:
|
|
// tmin minimum of interval of overlap within [t0,t1]
|
|
// tmax maximum of interval of overlap within [t0,t1]
|
|
// Returns true if hit
|
|
template <
|
|
typename Derivedsource,
|
|
typename Deriveddir,
|
|
typename Scalar>
|
|
IGL_INLINE bool ray_box_intersect(
|
|
const Eigen::MatrixBase<Derivedsource> & source,
|
|
const Eigen::MatrixBase<Deriveddir> & dir,
|
|
const Eigen::AlignedBox<Scalar,3> & box,
|
|
const Scalar & t0,
|
|
const Scalar & t1,
|
|
Scalar & tmin,
|
|
Scalar & tmax);
|
|
}
|
|
#ifndef IGL_STATIC_LIBRARY
|
|
# include "ray_box_intersect.cpp"
|
|
#endif
|
|
#endif
|