dust3d/third_party/libigl/include/igl/swept_volume_bounding_box.h

39 lines
1.2 KiB
C++

// This file is part of libigl, a simple c++ geometry processing library.
//
// Copyright (C) 2016 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_SWEPT_VOLUME_BOUNDING_BOX_H
#define IGL_SWEPT_VOLUME_BOUNDING_BOX_H
#include "igl_inline.h"
#include <Eigen/Core>
#include <Eigen/Geometry>
#include <functional>
namespace igl
{
// Construct an axis-aligned bounding box containing a shape undergoing a
// motion sampled at `steps` discrete momements.
//
// Inputs:
// n number of mesh vertices
// V function handle so that V(i,t) returns the 3d position of vertex
// i at time t, for t∈[0,1]
// steps number of time steps: steps=3 --> t∈{0,0.5,1}
// Outputs:
// box box containing mesh under motion
IGL_INLINE void swept_volume_bounding_box(
const size_t & n,
const std::function<
Eigen::RowVector3d(const size_t vi, const double t)> & V,
const size_t & steps,
Eigen::AlignedBox3d & box);
}
#ifndef IGL_STATIC_LIBRARY
# include "swept_volume_bounding_box.cpp"
#endif
#endif