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

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// 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/.
#include "point_in_circle.h"
IGL_INLINE bool igl::point_in_circle(
const double qx,
const double qy,
const double cx,
const double cy,
const double r)
{
return (qx-cx)*(qx-cx) + (qy-cy)*(qy-cy) - r*r < 0;
}