/usr/include/ASL/math/aslInterpolation.h is in libasl-dev 0.1.7-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 | /*
* Advanced Simulation Library <http://asl.org.il>
*
* Copyright 2015 Avtech Scientific <http://avtechscientific.com>
*
*
* This file is part of Advanced Simulation Library (ASL).
*
* ASL is free software: you can redistribute it and/or modify it
* under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, version 3 of the License.
*
* ASL is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with ASL. If not, see <http://www.gnu.org/licenses/>.
*
*/
/// \file aslVectors.h definition of class АVec<T>
#ifndef ASLINTERPOLATION
#define ASLINTERPOLATION
#include "../aslUtilities.h"
#include <cmath>
namespace asl
{
class ElementBase;
typedef std::shared_ptr<ElementBase> Element;
template <class Func> class UniversalFunction
{
public:
inline double operator()(double x);
inline double operator()(Element x);
};
///Linear spline function
/**
\ingroup Splines
this class defines a spline function \f$ (1-|x/r_0|),~~~ |x|<r_0 \f$
\image html linearS.png ""
*/
class LinearSpline
{
public:
template <typename T> inline T operator(T x,T r0)
{
return fabs(x)<r0 ? 1.- fabs(x)/r0 : 0;
}
};
///Quadratic spline function
/**
\ingroup Splines
this class defines a spline function \f$ (1-|x|/r_0)^2,~~~ |x|<r_0 \f$
\image html quadraticS.png ""
*/
class QuadraticSpline
{
public:
template <typename T> inline T operator(T x,T r0)
{
T a(fabs(x));
T b((1.- a/r0));
return a<r0 ? b*b : 0;
}
};
///Qubic spline function
/**
\ingroup Splines
this class defines a spline function \f$ (1-|x|/r_0)^3,~~~ |x|<r_0 \f$
\image html qubicS.png ""
*/
class QubicSpline
{
public:
template <typename T> inline T operator(T x,T r0)
{
T a(fabs(x));
T b((1.- a/r0));
return a<r0 ? b*b*b : 0;
}
};
///Qubic spline function
/**
\ingroup Splines
this class defines a spline function \f$ (1-|x|/r_0)^3,~~~ |x|<r_0 \f$
\image html qubicS1.png ""
*/
class QubicSpline1
{
public:
template <typename T> inline T operator(T x,T r0)
{
T a(fabs(x));
T b(a/r0);
T b2(b*b);
return b < 1 ? 2. * b2*b - 3. * b2 + 1 : 0;
}
};
// --------------------------- Implementation ---------------------
template <class Func> inline double UniversalFunction<Func>::operator()(double x)
{
return Func(x);
}
template <class Func> inline Element UniversalFunction<Func>::operator()(Element x)
{
return Func(x);
}
} // asl
#endif
|