200 lines
6.5 KiB
C++
200 lines
6.5 KiB
C++
// ____ ______ __
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// / __ \ / ____// /
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// / /_/ // / / /
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// / ____// /___ / /___ PixInsight Class Library
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// /_/ \____//_____/ PCL 2.4.23
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// ----------------------------------------------------------------------------
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// pcl/Constants.h - Released 2022-03-12T18:59:29Z
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// ----------------------------------------------------------------------------
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// This file is part of the PixInsight Class Library (PCL).
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// PCL is a multiplatform C++ framework for development of PixInsight modules.
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//
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// Copyright (c) 2003-2022 Pleiades Astrophoto S.L. All Rights Reserved.
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//
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// Redistribution and use in both source and binary forms, with or without
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// modification, is permitted provided that the following conditions are met:
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//
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// 1. All redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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//
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// 2. All redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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//
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// 3. Neither the names "PixInsight" and "Pleiades Astrophoto", nor the names
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// of their contributors, may be used to endorse or promote products derived
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// from this software without specific prior written permission. For written
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// permission, please contact info@pixinsight.com.
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//
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// 4. All products derived from this software, in any form whatsoever, must
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// reproduce the following acknowledgment in the end-user documentation
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// and/or other materials provided with the product:
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//
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// "This product is based on software from the PixInsight project, developed
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// by Pleiades Astrophoto and its contributors (https://pixinsight.com/)."
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//
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// Alternatively, if that is where third-party acknowledgments normally
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// appear, this acknowledgment must be reproduced in the product itself.
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//
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// THIS SOFTWARE IS PROVIDED BY PLEIADES ASTROPHOTO AND ITS CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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// TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL PLEIADES ASTROPHOTO OR ITS
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// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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// EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, BUSINESS
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// INTERRUPTION; PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; AND LOSS OF USE,
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// DATA OR PROFITS) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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// ----------------------------------------------------------------------------
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#ifndef __PCL_Constants_h
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#define __PCL_Constants_h
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/// \file pcl/Constants.h
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#include <pcl/Defs.h>
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namespace pcl
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{
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// ----------------------------------------------------------------------------
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/*!
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* \class Const
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* \brief Fundamental numeric constants
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*
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* Specialize this class to obtain constants of the appropriate floating-point
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* types. For example: Const<double>::pi()
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*/
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template <typename T>
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class PCL_CLASS Const
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{
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public:
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/*!
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* pi/4 (45 degrees)
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*/
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static constexpr T pi4 () { return T( 0.785398163397448309615660845819875725e+00L ); }
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/*!
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* pi/2 (90 degrees)
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*/
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static constexpr T pi2 () { return T( 0.157079632679489661923132169163975145e+01L ); }
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/*!
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* 3*pi/4 (135 degrees)
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*/
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static constexpr T _3pi4 () { return T( 0.2356194490192344928846982537459627175e+01L ); }
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/*!
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* The pi constant (180 degrees)
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*/
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static constexpr T pi () { return T( 0.31415926535897932384626433832795029e+01L ); }
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/*!
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* 5*pi/4 (225 degrees)
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*/
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static constexpr T _5pi4 () { return T( 0.3926990816987241548078304229099378625e+01L ); }
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/*!
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* 3*pi/2 (270 degrees)
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*/
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static constexpr T _3pi2 () { return T( 0.471238898038468985769396507491925435e+01L ); }
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/*!
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* 7*pi/4 (315 degrees)
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*/
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static constexpr T _7pi4 () { return T( 0.5497787143782138167309625920739130075e+01L ); }
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/*!
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* 2*pi (360 degrees)
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*/
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static constexpr T _2pi () { return T( 0.62831853071795864769252867665590058e+01L ); }
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/*!
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* 1/pi
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*/
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static constexpr T _1_pi () { return T( 0.3183098861837906715377675267450287224677e+00L ); }
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/*!
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* 2/pi
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*/
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static constexpr T _2_pi () { return T( 0.6366197723675813430755350534900574449355e+00L ); }
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/*!
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* 2/sqrt( pi )
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*/
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static constexpr T _2_sqrtpi () { return T( 0.11283791670955125738961589031215451688501e+01L ); }
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/*!
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* 180/pi - the radians-to-degrees conversion factor.
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*/
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static constexpr T deg () { return T( 0.572957795130823208767981548141051700441964e+02L ); }
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/*!
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* Pi/180 - the degrees-to-radians conversion factor.
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*/
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static constexpr T rad () { return T( 0.174532925199432957692369076848861272222e-01L ); }
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/*!
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* The Euler constant e.
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*/
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static constexpr T e () { return T( 0.27182818284590452353602874713526625e+01L ); }
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/*!
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* log2( e )
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*/
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static constexpr T log2e () { return T( 0.14426950408889634073599246810018920709799e+01L ); }
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/*!
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* log2( 10 )
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*/
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static constexpr T log210 () { return T( 0.33219280948873623478703194294893900118996e+01L ); }
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/*!
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* log10( e )
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*/
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static constexpr T log10e () { return T( 0.4342944819032518276511289189166050837280e+00L ); }
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/*!
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* log10( 2 )
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*/
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static constexpr T log102 () { return T( 0.3010299956639811952137388947244930416265e+00L ); }
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/*!
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* ln( 2 )
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*/
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static constexpr T ln2 () { return T( 0.6931471805599453094172321214581766e+00L ); }
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/*!
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* ln( 10 )
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*/
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static constexpr T ln10 () { return T( 0.23025850929940456840179914546843642e+01L ); }
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/*!
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* sqrt( 2 )
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*/
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static constexpr T sqrt2 () { return T( 0.14142135623730950488016887242096980785696e+01L ); }
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/*!
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* 1/sqrt( 2 ) = sqrt( 2 )/2
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*/
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static constexpr T _1_sqrt2 () { return T( 0.7071067811865475244008443621048490392848e+00L ); }
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/*!
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* sqrt( 2 )/2 = 1/sqrt( 2 )
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*/
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static constexpr T sqrt2_2 () { return T( 0.7071067811865475244008443621048490392848e+00L ); }
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};
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// ----------------------------------------------------------------------------
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} // pcl
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#endif // __PCL_Constants_h
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// ----------------------------------------------------------------------------
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// EOF pcl/Constants.h - Released 2022-03-12T18:59:29Z
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