39 lines
978 B
C++
39 lines
978 B
C++
// This file is part of libigl, a simple c++ geometry processing library.
|
|
//
|
|
// Copyright (C) 2016 Qingan Zhou <qnzhou@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_COPYLEFT_CGAL_ORIENT_2D_H
|
|
#define IGL_COPYLEFT_CGAL_ORIENT_2D_H
|
|
|
|
#include "../../igl_inline.h"
|
|
|
|
namespace igl
|
|
{
|
|
namespace copyleft
|
|
{
|
|
namespace cgal
|
|
{
|
|
// Inputs:
|
|
// pa,pb,pc 2D points.
|
|
// Output:
|
|
// 1 if pa,pb,pc are counterclockwise oriented.
|
|
// 0 if pa,pb,pc are counterclockwise oriented.
|
|
// -1 if pa,pb,pc are clockwise oriented.
|
|
template <typename Scalar>
|
|
IGL_INLINE short orient2D(
|
|
const Scalar pa[2],
|
|
const Scalar pb[2],
|
|
const Scalar pc[2]);
|
|
}
|
|
}
|
|
}
|
|
|
|
#ifndef IGL_STATIC_LIBRARY
|
|
# include "orient2D.cpp"
|
|
#endif
|
|
#endif
|