PCL
Constants.h
Go to the documentation of this file.
1 // ____ ______ __
2 // / __ \ / ____// /
3 // / /_/ // / / /
4 // / ____// /___ / /___ PixInsight Class Library
5 // /_/ \____//_____/ PCL 2.7.0
6 // ----------------------------------------------------------------------------
7 // pcl/Constants.h - Released 2024-06-18T15:48:54Z
8 // ----------------------------------------------------------------------------
9 // This file is part of the PixInsight Class Library (PCL).
10 // PCL is a multiplatform C++ framework for development of PixInsight modules.
11 //
12 // Copyright (c) 2003-2024 Pleiades Astrophoto S.L. All Rights Reserved.
13 //
14 // Redistribution and use in both source and binary forms, with or without
15 // modification, is permitted provided that the following conditions are met:
16 //
17 // 1. All redistributions of source code must retain the above copyright
18 // notice, this list of conditions and the following disclaimer.
19 //
20 // 2. All redistributions in binary form must reproduce the above copyright
21 // notice, this list of conditions and the following disclaimer in the
22 // documentation and/or other materials provided with the distribution.
23 //
24 // 3. Neither the names "PixInsight" and "Pleiades Astrophoto", nor the names
25 // of their contributors, may be used to endorse or promote products derived
26 // from this software without specific prior written permission. For written
27 // permission, please contact info@pixinsight.com.
28 //
29 // 4. All products derived from this software, in any form whatsoever, must
30 // reproduce the following acknowledgment in the end-user documentation
31 // and/or other materials provided with the product:
32 //
33 // "This product is based on software from the PixInsight project, developed
34 // by Pleiades Astrophoto and its contributors (https://pixinsight.com/)."
35 //
36 // Alternatively, if that is where third-party acknowledgments normally
37 // appear, this acknowledgment must be reproduced in the product itself.
38 //
39 // THIS SOFTWARE IS PROVIDED BY PLEIADES ASTROPHOTO AND ITS CONTRIBUTORS
40 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
41 // TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42 // PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL PLEIADES ASTROPHOTO OR ITS
43 // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
44 // EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, BUSINESS
45 // INTERRUPTION; PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; AND LOSS OF USE,
46 // DATA OR PROFITS) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
47 // CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
48 // ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
49 // POSSIBILITY OF SUCH DAMAGE.
50 // ----------------------------------------------------------------------------
51 
52 #ifndef __PCL_Constants_h
53 #define __PCL_Constants_h
54 
56 
57 #include <pcl/Defs.h>
58 
59 namespace pcl
60 {
61 
62 // ----------------------------------------------------------------------------
63 
71 template <typename T>
72 class PCL_CLASS Const
73 {
74 public:
75 
79  static constexpr T pi4 () { return T( 0.785398163397448309615660845819875725e+00L ); }
80 
84  static constexpr T pi2 () { return T( 0.157079632679489661923132169163975145e+01L ); }
85 
89  static constexpr T _3pi4 () { return T( 0.2356194490192344928846982537459627175e+01L ); }
90 
94  static constexpr T pi () { return T( 0.31415926535897932384626433832795029e+01L ); }
95 
99  static constexpr T _5pi4 () { return T( 0.3926990816987241548078304229099378625e+01L ); }
100 
104  static constexpr T _3pi2 () { return T( 0.471238898038468985769396507491925435e+01L ); }
105 
109  static constexpr T _7pi4 () { return T( 0.5497787143782138167309625920739130075e+01L ); }
110 
114  static constexpr T _2pi () { return T( 0.62831853071795864769252867665590058e+01L ); }
115 
119  static constexpr T _1_pi () { return T( 0.3183098861837906715377675267450287224677e+00L ); }
120 
124  static constexpr T _2_pi () { return T( 0.6366197723675813430755350534900574449355e+00L ); }
125 
129  static constexpr T _2_sqrtpi () { return T( 0.11283791670955125738961589031215451688501e+01L ); }
130 
134  static constexpr T deg () { return T( 0.572957795130823208767981548141051700441964e+02L ); }
135 
139  static constexpr T rad () { return T( 0.174532925199432957692369076848861272222e-01L ); }
140 
144  static constexpr T e () { return T( 0.27182818284590452353602874713526625e+01L ); }
145 
149  static constexpr T log2e () { return T( 0.14426950408889634073599246810018920709799e+01L ); }
150 
154  static constexpr T log210 () { return T( 0.33219280948873623478703194294893900118996e+01L ); }
155 
159  static constexpr T log10e () { return T( 0.4342944819032518276511289189166050837280e+00L ); }
160 
164  static constexpr T log102 () { return T( 0.3010299956639811952137388947244930416265e+00L ); }
165 
169  static constexpr T ln2 () { return T( 0.6931471805599453094172321214581766e+00L ); }
170 
174  static constexpr T ln10 () { return T( 0.23025850929940456840179914546843642e+01L ); }
175 
179  static constexpr T sqrt2 () { return T( 0.14142135623730950488016887242096980785696e+01L ); }
180 
184  static constexpr T _1_sqrt2 () { return T( 0.7071067811865475244008443621048490392848e+00L ); }
185 
189  static constexpr T sqrt2_2 () { return T( 0.7071067811865475244008443621048490392848e+00L ); }
190 };
191 
192 // ----------------------------------------------------------------------------
193 
194 } // pcl
195 
196 #endif // __PCL_Constants_h
197 
198 // ----------------------------------------------------------------------------
199 // EOF pcl/Constants.h - Released 2024-06-18T15:48:54Z
Fundamental numeric constants.
Definition: Constants.h:73
PCL root namespace.
Definition: AbstractImage.h:77