20 lines
571 B
C++
20 lines
571 B
C++
// This file is part of libigl, a simple c++ geometry processing library.
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//
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// Copyright (C) 2013 Alec Jacobson <alecjacobson@gmail.com>
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//
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// This Source Code Form is subject to the terms of the Mozilla Public License
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// v. 2.0. If a copy of the MPL was not distributed with this file, You can
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// obtain one at http://mozilla.org/MPL/2.0/.
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#ifndef IGL_PI_H
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#define IGL_PI_H
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namespace igl
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{
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// Use standard mathematical constants' M_PI if available
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#ifdef M_PI
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const double PI = M_PI;
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#else
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const double PI = 3.1415926535897932384626433832795;
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#endif
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}
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#endif
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