/usr/include/x86_64-linux-gnu/Gyoto/GyotoMinkowski.h is in libgyoto6-dev 1.2.0-4.
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 | /**
* \file GyotoMinkowski.h
* \brief The Minkowski flat-space metric
*
* Use <Cartesian> or </Spherical> to select the coordinate system
* kind.
*/
/*
Copyright 2014 Thibaut Paumard
This file is part of Gyoto.
Gyoto is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Gyoto 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with Gyoto. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __GyotoMinkowski_H_
#define __GyotoMinkowski_H_
#include <GyotoMetric.h>
namespace Gyoto {
namespace Metric { class Minkowski; }
}
/**
* \class Gyoto::Metric::Minkowski
* \brief The Minkowski flat-space metric
*
* Use <Cartesian> or </Spherical> to select the coordinate system
* kind.
*/
class Gyoto::Metric::Minkowski
: public Gyoto::Metric::Generic
{
friend class Gyoto::SmartPointer<Gyoto::Metric::Minkowski>;
private:
public:
// Those are mere wrappers arround Generic::coordKind(), useful for
// declaring a boolen property using the macro GYOTO_PROPERTY_BOOL:
void spherical(bool);
bool spherical() const;
// This is the bare minimum of what a Metric class must implement:
GYOTO_OBJECT;
Minkowski();
virtual Minkowski* clone() const ;
void gmunu(double g[4][4], const double x[4]) const ;
int christoffel(double dst[4][4][4], const double x[4]) const ;
// Those two are implemented as examples.
double gmunu(const double x[4], int mu, int nu) const ;
double christoffel(const double coord[4],
const int alpha, const int mu, const int nu) const ;
void observerTetrad(std::string const obskind,
double const pos[4], double fourvel[4],
double screen1[4], double screen2[4],
double screen3[4]) const;
};
#endif
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