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

29 lines
884 B
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/.
#include "swept_volume_bounding_box.h"
#include "LinSpaced.h"
IGL_INLINE void igl::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)
{
using namespace Eigen;
box.setEmpty();
const VectorXd t = igl::LinSpaced<VectorXd >(steps,0,1);
// Find extent over all time steps
for(int ti = 0;ti<t.size();ti++)
{
for(size_t vi = 0;vi<n;vi++)
{
box.extend(V(vi,t(ti)).transpose());
}
}
}