20 lines
571 B
C
20 lines
571 B
C
|
// This file is part of libigl, a simple c++ geometry processing library.
|
||
|
|
//
|
||
|
|
// Copyright (C) 2013 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_PI_H
|
||
|
|
#define IGL_PI_H
|
||
|
|
namespace igl
|
||
|
|
{
|
||
|
|
// Use standard mathematical constants' M_PI if available
|
||
|
|
#ifdef M_PI
|
||
|
|
const double PI = M_PI;
|
||
|
|
#else
|
||
|
|
const double PI = 3.1415926535897932384626433832795;
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
#endif
|