Martin Šach 21116995d7 Refactor CMake and improve #includes.
* 1. Remove all global include_directories.
* 2. Move 3d party dependencies from src to budled deps if possible.
* Unify and enforce one way of including headers:
    e.g. #include "libslic3r/GCode.hpp" vs #include "GCode.hpp"
    (always use the "libslic3r/GCode.hpp" option).
* Make all dependencies (also header only) a cmake target.
2024-07-08 15:36:46 +02:00

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// 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/.
#include "incircle.h"
#include <CGAL/Exact_predicates_exact_constructions_kernel.h>
#include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
template<typename Scalar>
IGL_INLINE short igl::copyleft::cgal::incircle(
const Scalar pa[2],
const Scalar pb[2],
const Scalar pc[2],
const Scalar pd[2])
{
typedef CGAL::Exact_predicates_exact_constructions_kernel Epeck;
typedef CGAL::Exact_predicates_inexact_constructions_kernel Epick;
typedef typename std::conditional<std::is_same<Scalar, Epeck::FT>::value,
Epeck, Epick>::type Kernel;
switch(CGAL::side_of_oriented_circle(
typename Kernel::Point_2(pa[0], pa[1]),
typename Kernel::Point_2(pb[0], pb[1]),
typename Kernel::Point_2(pc[0], pc[1]),
typename Kernel::Point_2(pd[0], pd[1]))) {
case CGAL::ON_POSITIVE_SIDE:
return 1;
case CGAL::ON_NEGATIVE_SIDE:
return -1;
case CGAL::ON_ORIENTED_BOUNDARY:
return 0;
default:
throw "Invalid incircle result";
}
}