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/* | ||
* Software License Agreement (BSD License) | ||
* | ||
* Copyright (c) 2011-2014, Willow Garage, Inc. | ||
* Copyright (c) 2014-2016, Open Source Robotics Foundation | ||
* All rights reserved. | ||
* | ||
* Redistribution and use in source and binary forms, with or without | ||
* modification, are permitted provided that the following conditions | ||
* are met: | ||
* | ||
* * Redistributions of source code must retain the above copyright | ||
* notice, this list of conditions and the following disclaimer. | ||
* * Redistributions in binary form must reproduce the above | ||
* copyright notice, this list of conditions and the following | ||
* disclaimer in the documentation and/or other materials provided | ||
* with the distribution. | ||
* * Neither the name of Open Source Robotics Foundation nor the names of its | ||
* contributors may be used to endorse or promote products derived | ||
* from this software without specific prior written permission. | ||
* | ||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | ||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | ||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS | ||
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE | ||
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, | ||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, | ||
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | ||
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER | ||
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | ||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN | ||
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | ||
* POSSIBILITY OF SUCH DAMAGE. | ||
*/ | ||
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/** @author Jia Pan */ | ||
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#ifndef FCL_NARROWPHASE_DETAIL_POLYSOLVER_H | ||
#define FCL_NARROWPHASE_DETAIL_POLYSOLVER_H | ||
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#include "fcl/export.h" | ||
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namespace fcl | ||
{ | ||
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namespace detail { | ||
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/// @brief A class solves polynomial degree (1,2,3) equations | ||
template <typename S> | ||
class PolySolver | ||
{ | ||
public: | ||
/// @brief Solve a linear equation with coefficients c, return roots s and number of roots | ||
static int solveLinear(S c[2], S s[1]); | ||
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/// @brief Solve a quadratic function with coefficients c, return roots s and number of roots | ||
static int solveQuadric(S c[3], S s[2]); | ||
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/// @brief Solve a cubic function with coefficients c, return roots s and number of roots | ||
static int solveCubic(S c[4], S s[3]); | ||
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private: | ||
/// @brief Check whether v is zero | ||
static bool isZero(S v); | ||
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/// @brief Compute v^{1/3} | ||
static bool cbrt(S v); | ||
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static constexpr S getNearZeroThreshold(); | ||
}; | ||
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using PolySolverf = PolySolver<float>; | ||
using PolySolverd = PolySolver<double>; | ||
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} // namespace detail | ||
} // namespace fcl | ||
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#include "fcl/math/detail/polysolver-inl.h" | ||
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#endif | ||
/* | ||
* Software License Agreement (BSD License) | ||
* | ||
* Copyright (c) 2011-2014, Willow Garage, Inc. | ||
* Copyright (c) 2014-2016, Open Source Robotics Foundation | ||
* All rights reserved. | ||
* | ||
* Redistribution and use in source and binary forms, with or without | ||
* modification, are permitted provided that the following conditions | ||
* are met: | ||
* | ||
* * Redistributions of source code must retain the above copyright | ||
* notice, this list of conditions and the following disclaimer. | ||
* * Redistributions in binary form must reproduce the above | ||
* copyright notice, this list of conditions and the following | ||
* disclaimer in the documentation and/or other materials provided | ||
* with the distribution. | ||
* * Neither the name of Open Source Robotics Foundation nor the names of its | ||
* contributors may be used to endorse or promote products derived | ||
* from this software without specific prior written permission. | ||
* | ||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | ||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | ||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS | ||
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE | ||
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, | ||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, | ||
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | ||
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER | ||
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | ||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN | ||
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | ||
* POSSIBILITY OF SUCH DAMAGE. | ||
*/ | ||
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/** @author Jia Pan */ | ||
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#ifndef FCL_NARROWPHASE_DETAIL_POLYSOLVER_H | ||
#define FCL_NARROWPHASE_DETAIL_POLYSOLVER_H | ||
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#include "fcl/export.h" | ||
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namespace fcl | ||
{ | ||
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namespace detail { | ||
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/// @brief A class solves polynomial degree (1,2,3) equations | ||
template <typename S> | ||
class PolySolver | ||
{ | ||
public: | ||
/// @brief Solve a linear equation with coefficients c, return roots s and number of roots | ||
static int solveLinear(S c[2], S s[1]); | ||
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/// @brief Solve a quadratic function with coefficients c, return roots s and number of roots | ||
static int solveQuadric(S c[3], S s[2]); | ||
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/// @brief Solve a cubic function with coefficients c, return roots s and number of roots | ||
static int solveCubic(S c[4], S s[3]); | ||
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private: | ||
/// @brief Check whether v is zero | ||
static bool isZero(S v); | ||
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/// @brief Compute v^{1/3} | ||
static bool cbrt(S v); | ||
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static constexpr S getNearZeroThreshold(); | ||
}; | ||
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using PolySolverf = PolySolver<float>; | ||
using PolySolverd = PolySolver<double>; | ||
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} // namespace detail | ||
} // namespace fcl | ||
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#include "fcl/math/detail/polysolver-inl.h" | ||
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#endif |
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