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33 changed files with 309 additions and 295 deletions

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@ -1,29 +0,0 @@
name: CMake
on:
push:
branches: [ "master" ]
pull_request:
branches: [ "master" ]
env:
BUILD_TYPE: RelWithDebInfo
jobs:
build_matrix:
strategy:
matrix:
os: [ubuntu-latest, windows-latest, macos-latest]
runs-on: ${{ matrix.os }}
steps:
- uses: actions/checkout@v3
- name: Configure CMake
run: cmake -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}}
- name: Build
run: cmake --build ${{github.workspace}}/build --config ${{env.BUILD_TYPE}}
- name: Test
working-directory: ${{github.workspace}}/build
run: ctest -C ${{env.BUILD_TYPE}}

1
.gitignore vendored
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@ -1 +0,0 @@
build/

90
.travis.yml Normal file
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@ -0,0 +1,90 @@
sudo: required
dist: trusty
language: cpp
matrix:
include:
# Clang 4.0
- env: COMPILER=clang++-4.0
addons:
apt:
packages:
- clang-4.0
- g++-5
sources:
- ubuntu-toolchain-r-test
- llvm-toolchain-trusty-4.0
# Clang 5.0
- env: COMPILER=clang++-5.0
addons:
apt:
packages:
- clang-5.0
- g++-7
sources:
- ubuntu-toolchain-r-test
- llvm-toolchain-trusty-5.0
# Clang 6.0
- env: COMPILER=clang++-6.0
addons:
apt:
packages:
- clang-6.0
- g++-7
sources:
- ubuntu-toolchain-r-test
- llvm-toolchain-trusty-6.0
# Clang 7.0
- env: COMPILER=clang++-7
addons:
apt:
packages:
- clang-7
- g++-7
sources:
- ubuntu-toolchain-r-test
- sourceline: 'deb http://apt.llvm.org/trusty/ llvm-toolchain-trusty-7 main'
key_url: 'https://apt.llvm.org/llvm-snapshot.gpg.key'
# GCC 5
- env: COMPILER=g++-5
addons:
apt:
packages: g++-5
sources:
- ubuntu-toolchain-r-test
# GCC 6
- env: COMPILER=g++-6
addons:
apt:
packages: g++-6
sources:
- ubuntu-toolchain-r-test
# GCC 7
- env: COMPILER=g++-7
addons:
apt:
packages: g++-7
sources:
- ubuntu-toolchain-r-test
install:
# Set the ${CXX} variable properly
- export CXX=${COMPILER}
- ${CXX} --version
# Travis machines have 2 cores
- JOBS=2
before_script:
# have CMake generate build files
- cd "${TRAVIS_BUILD_DIR}"
- mkdir build && cd build
- cmake ..
script:
# build
- cmake --build . -- -j${JOBS}

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@ -5,12 +5,7 @@ if (POLICY CMP0054)
cmake_policy(SET CMP0054 NEW)
endif()
if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
set(CMAKE_INSTALL_PREFIX "${CMAKE_BINARY_DIR}/install" CACHE PATH "..." FORCE)
endif()
set(CMAKE_INSTALL_LIBDIR "/lib64")
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD 11)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_CXX_EXTENSIONS OFF)

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@ -1,6 +1,8 @@
SGP4 library
============
[![Build Status](https://travis-ci.org/dnwrnr/sgp4.svg?branch=master)](https://travis-ci.org/dnwrnr/sgp4)
License
-------

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@ -38,4 +38,4 @@ set(SRCS
add_library(sgp4 STATIC ${SRCS} ${INCS})
add_library(sgp4s SHARED ${SRCS} ${INCS})
install( TARGETS sgp4s LIBRARY DESTINATION lib )
install( FILES ${INCS} DESTINATION include/libsgp4 )
install( FILES ${INCS} DESTINATION include/SGP4 )

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@ -15,7 +15,8 @@
*/
#pragma once
#ifndef COORDGEODETIC_H_
#define COORDGEODETIC_H_
#include "Util.h"
@ -23,9 +24,6 @@
#include <sstream>
#include <iomanip>
namespace libsgp4
{
/**
* @brief Stores a geodetic location (latitude, longitude, altitude).
*
@ -37,7 +35,12 @@ public:
/**
* Default constructor
*/
CoordGeodetic() = default;
CoordGeodetic()
: latitude(0.0),
longitude(0.0),
altitude(0.0)
{
}
/**
* Constructor
@ -106,11 +109,11 @@ public:
}
/** latitude in radians (-PI >= latitude < PI) */
double latitude{};
double latitude;
/** latitude in radians (-PI/2 >= latitude <= PI/2) */
double longitude{};
double longitude;
/** altitude in kilometers */
double altitude{};
double altitude;
};
/**
@ -123,4 +126,4 @@ inline std::ostream& operator<<(std::ostream& strm, const CoordGeodetic& g)
return strm << g.ToString();
}
} // namespace libsgp4
#endif

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@ -15,7 +15,8 @@
*/
#pragma once
#ifndef COORDTOPOCENTRIC_H_
#define COORDTOPOCENTRIC_H_
#include "Util.h"
@ -23,9 +24,6 @@
#include <sstream>
#include <iomanip>
namespace libsgp4
{
/**
* @brief Stores a topocentric location (azimuth, elevation, range and range
* rate).
@ -39,7 +37,13 @@ public:
/**
* Default constructor
*/
CoordTopocentric() = default;
CoordTopocentric()
: azimuth(0.0)
, elevation(0.0)
, range(0.0)
, range_rate(0.0)
{
}
/**
* Constructor
@ -104,13 +108,13 @@ public:
}
/** azimuth in radians */
double azimuth{};
double azimuth;
/** elevations in radians */
double elevation{};
double elevation;
/** range in kilometers */
double range{};
double range;
/** range rate in kilometers per second */
double range_rate{};
double range_rate;
};
@ -119,4 +123,4 @@ inline std::ostream& operator<<(std::ostream& strm, const CoordTopocentric& t)
return strm << t.ToString();
}
} // namespace libsgp4
#endif

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@ -80,7 +80,7 @@ int main()
std::cout << "F " << dt.Microsecond() << " " << microsecond << std::endl;
return 0;
}
if (!jd_dmy(dt.Julian() + 0.5, year, month, day))
{
std::cout << "julian" << std::endl;
@ -89,7 +89,7 @@ int main()
}
}
}
for (int hour = 1; hour < 24; hour++)
{
std::cout << hour << std::endl;
@ -127,7 +127,7 @@ int main()
}
}
}
jd_dmy(1721425.5, 0, 0, 0);
DateTime d1(1000, 1, 1);
@ -142,7 +142,7 @@ int main()
std::cout << d3.Julian() << std::endl;
std::cout << d4.Julian() << std::endl;
std::cout << d5.Julian() << std::endl;
return 0;
}

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@ -15,7 +15,8 @@
*/
#pragma once
#ifndef DATETIME_H_
#define DATETIME_H_
#include <iomanip>
#include <iostream>
@ -26,8 +27,6 @@
#include "TimeSpan.h"
#include "Util.h"
namespace libsgp4
{
namespace
{
static int daysInMonth[2][13] = {
@ -61,7 +60,7 @@ public:
* Constructor
* @param[in] ticks raw tick value
*/
explicit DateTime(int64_t ticks)
DateTime(int64_t ticks)
: m_encoded(ticks)
{
}
@ -112,21 +111,6 @@ public:
* @param[in] second the second
* @param[in] microsecond the microsecond
*/
DateTime(int year, int month, int day, int hour, int minute, int second, int microsecond)
{
Initialise(year, month, day, hour, minute, second, microsecond);
}
/**
* Initialise to the given data and time.
* @param[in] year the year
* @param[in] month the month
* @param[in] day the day
* @param[in] hour the hour
* @param[in] minute the minute
* @param[in] second the second
* @param[in] microsecond the microsecond
*/
void Initialise(int year,
int month,
int day,
@ -450,7 +434,7 @@ public:
DateTime AddMicroseconds(const double microseconds) const
{
auto ticks = static_cast<int64_t>(microseconds * TicksPerMicrosecond);
int64_t ticks = static_cast<int64_t>(microseconds * TicksPerMicrosecond);
return AddTicks(ticks);
}
@ -603,7 +587,7 @@ public:
*/
double ToJulian() const
{
auto ts = TimeSpan(Ticks());
TimeSpan ts = TimeSpan(Ticks());
return ts.TotalDays() + 1721425.5;
}
@ -665,7 +649,7 @@ public:
}
private:
int64_t m_encoded{};
int64_t m_encoded;
};
inline std::ostream& operator<<(std::ostream& strm, const DateTime& dt)
@ -718,4 +702,4 @@ inline bool operator<=(const DateTime& dt1, const DateTime& dt2)
return (dt1.Compare(dt2) <= 0);
}
} // namespace libsgp4
#endif

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@ -15,7 +15,8 @@
*/
#pragma once
#ifndef DECAYEDEXCEPTION_H_
#define DECAYEDEXCEPTION_H_
#include "DateTime.h"
#include "Vector.h"
@ -23,9 +24,6 @@
#include <stdexcept>
#include <string>
namespace libsgp4
{
/**
* @brief The exception that the SGP4 class throws when a satellite decays.
*/
@ -76,4 +74,4 @@ private:
Vector _vel;
};
} // namespace libsgp4
#endif

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@ -20,9 +20,6 @@
#include "Globals.h"
#include "Util.h"
namespace libsgp4
{
/**
* Converts a DateTime and Geodetic position to Eci coordinates
* @param[in] dt the date
@ -85,7 +82,7 @@ CoordGeodetic Eci::ToGeodetic() const
const double r = sqrt((m_position.x * m_position.x)
+ (m_position.y * m_position.y));
static const double e2 = kF * (2.0 - kF);
double lat = Util::AcTan(m_position.z, r);
@ -107,5 +104,3 @@ CoordGeodetic Eci::ToGeodetic() const
return CoordGeodetic(lat, lon, alt, true);
}
} // namespace libsgp4

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@ -15,15 +15,13 @@
*/
#pragma once
#ifndef ECI_H_
#define ECI_H_
#include "CoordGeodetic.h"
#include "Vector.h"
#include "DateTime.h"
namespace libsgp4
{
/**
* @brief Stores an Earth-centered inertial position for a particular time.
*/
@ -143,4 +141,4 @@ private:
Vector m_velocity;
};
} // namespace libsgp4
#endif

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@ -15,13 +15,11 @@
*/
#pragma once
#ifndef GLOBALS_H_
#define GLOBALS_H_
#include <cmath>
namespace libsgp4
{
const double kAE = 1.0;
const double kQ0 = 120.0;
const double kS0 = 78.0;
@ -74,4 +72,5 @@ const double kHOURS_PER_DAY = 24.0;
const double kA3OVK2 = -kXJ3 / kCK2 * kAE * kAE * kAE;
} // namespace libsgp4
#endif

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@ -16,10 +16,8 @@
#include "Observer.h"
#include "CoordTopocentric.h"
namespace libsgp4
{
#include "CoordTopocentric.h"
/*
* calculate lookangle between the observer and the passed in Eci object
@ -82,5 +80,3 @@ CoordTopocentric Observer::GetLookAngle(const Eci &eci)
range.w,
rate);
}
} // namespace libsgp4

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@ -15,14 +15,12 @@
*/
#pragma once
#ifndef OBSERVER_H_
#define OBSERVER_H_
#include "CoordGeodetic.h"
#include "Eci.h"
namespace libsgp4
{
class DateTime;
struct CoordTopocentric;
@ -50,7 +48,7 @@ public:
* Constructor
* @param[in] geo the observers position
*/
explicit Observer(const CoordGeodetic &geo)
Observer(const CoordGeodetic &geo)
: m_geo(geo)
, m_eci(DateTime(), geo)
{
@ -100,4 +98,5 @@ private:
Eci m_eci;
};
} // namespace libsgp4
#endif

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@ -19,9 +19,6 @@
#include "Tle.h"
namespace libsgp4
{
OrbitalElements::OrbitalElements(const Tle& tle)
{
/*
@ -67,4 +64,3 @@ OrbitalElements::OrbitalElements(const Tle& tle)
period_ = kTWOPI / RecoveredMeanMotion();
}
} // namespace libsgp4

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@ -15,14 +15,12 @@
*/
#pragma once
#ifndef ORBITALELEMENTS_H_
#define ORBITALELEMENTS_H_
#include "Util.h"
#include "DateTime.h"
namespace libsgp4
{
class Tle;
/**
@ -31,7 +29,7 @@ class Tle;
class OrbitalElements
{
public:
explicit OrbitalElements(const Tle& tle);
OrbitalElements(const Tle& tle);
/*
* XMO
@ -144,4 +142,4 @@ private:
DateTime epoch_;
};
} // namespace libsgp4
#endif

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@ -26,9 +26,6 @@
#include <iomanip>
#include <cstring>
namespace libsgp4
{
void SGP4::SetTle(const Tle& tle)
{
/*
@ -1349,5 +1346,3 @@ void SGP4::Reset()
std::memset(&deepspace_consts_, 0, sizeof(deepspace_consts_));
std::memset(&integrator_params_, 0, sizeof(integrator_params_));
}
} // namespace libsgp4

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@ -15,7 +15,8 @@
*/
#pragma once
#ifndef SGP4_H_
#define SGP4_H_
#include "Tle.h"
#include "OrbitalElements.h"
@ -23,9 +24,6 @@
#include "SatelliteException.h"
#include "DecayedException.h"
namespace libsgp4
{
/**
* @mainpage
*
@ -38,7 +36,7 @@ namespace libsgp4
class SGP4
{
public:
explicit SGP4(const Tle& tle)
SGP4(const Tle& tle)
: elements_(tle)
{
Initialise();
@ -257,4 +255,4 @@ private:
bool use_deep_space_;
};
} // namespace libsgp4
#endif

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@ -15,24 +15,22 @@
*/
#pragma once
#ifndef SATELLITEEXCEPTION_H_
#define SATELLITEEXCEPTION_H_
#include <stdexcept>
#include <string>
namespace libsgp4
{
/**
* @brief The exception that the SGP4 class throws upon an error.
*/
class SatelliteException : public std::runtime_error
{
public:
explicit SatelliteException(const char* message)
SatelliteException(const char* message)
: runtime_error(message)
{
}
};
} // namespace libsgp4
#endif

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@ -22,9 +22,6 @@
#include <cmath>
namespace libsgp4
{
Eci SolarPosition::FindPosition(const DateTime& dt)
{
const double mjd = dt.ToJ2000();
@ -64,5 +61,3 @@ double SolarPosition::Delta_ET(double year) const
return 26.465 + 0.747622 * (year - 1950) + 1.886913
* sin(kTWOPI * (year - 1975) / 33);
}
} // namespace libsgp4

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@ -15,21 +15,21 @@
*/
#pragma once
#ifndef SOLARPOSITION_H_
#define SOLARPOSITION_H_
#include "DateTime.h"
#include "Eci.h"
namespace libsgp4
{
/**
* @brief Find the position of the sun
*/
class SolarPosition
{
public:
SolarPosition() = default;
SolarPosition()
{
}
Eci FindPosition(const DateTime& dt);
@ -37,4 +37,4 @@ private:
double Delta_ET(double year) const;
};
} // namespace libsgp4
#endif

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@ -15,16 +15,14 @@
*/
#pragma once
#ifndef TIMESPAN_H_
#define TIMESPAN_H_
#include <iostream>
#include <sstream>
#include <iomanip>
#include <cmath>
#include <cstdint>
namespace libsgp4
{
#include <stdint.h>
namespace
{
@ -53,7 +51,7 @@ namespace
class TimeSpan
{
public:
explicit TimeSpan(int64_t ticks)
TimeSpan(int64_t ticks)
: m_ticks(ticks)
{
}
@ -197,7 +195,7 @@ public:
}
private:
int64_t m_ticks{};
int64_t m_ticks;
void CalculateTicks(int days,
int hours,
@ -206,7 +204,7 @@ private:
int microseconds)
{
m_ticks = days * TicksPerDay +
(hours * 3600LL + minutes * 60LL + seconds) * TicksPerSecond +
(hours * 3600LL + minutes * 60LL + seconds) * TicksPerSecond +
microseconds * TicksPerMicrosecond;
}
};
@ -256,4 +254,4 @@ inline bool operator<=(const TimeSpan& ts1, const TimeSpan& ts2)
return (ts1.Compare(ts2) <= 0);
}
} // namespace libsgp4
#endif

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@ -17,10 +17,8 @@
#include "Tle.h"
#include <locale>
#include <locale>
namespace libsgp4
{
namespace
{
static const unsigned int TLE1_COL_NORADNUM = 2;
@ -146,13 +144,9 @@ void Tle::Initialize()
TLE2_LEN_REVATEPOCH), orbit_number_);
if (year < 57)
{
year += 2000;
}
else
{
year += 1900;
}
epoch_ = DateTime(year, day);
}
@ -178,18 +172,18 @@ void Tle::ExtractInteger(const std::string& str, unsigned int& val)
bool found_digit = false;
unsigned int temp = 0;
for (auto& i : str)
for (std::string::const_iterator i = str.begin(); i != str.end(); ++i)
{
if (isdigit(i))
if (isdigit(*i))
{
found_digit = true;
temp = (temp * 10) + static_cast<unsigned int>(i - '0');
temp = (temp * 10) + static_cast<unsigned int>(*i - '0');
}
else if (found_digit)
{
throw TleException("Unexpected non digit");
}
else if (i != ' ')
else if (*i != ' ')
{
throw TleException("Invalid character");
}
@ -372,5 +366,3 @@ void Tle::ExtractExponential(const std::string& str, double& val)
throw TleException("Failed to convert value to double");
}
}
} // namespace libsgp4

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@ -15,15 +15,13 @@
*/
#pragma once
#ifndef TLE_H_
#define TLE_H_
#include "Util.h"
#include "DateTime.h"
#include "TleException.h"
namespace libsgp4
{
/**
* @brief Processes a two-line element set used to convey OrbitalElements.
*
@ -37,9 +35,10 @@ public:
* @param[in] line_one Tle line one
* @param[in] line_two Tle line two
*/
Tle(std::string line_one, std::string line_two)
: line_one_(std::move(line_one))
, line_two_(std::move(line_two))
Tle(const std::string& line_one,
const std::string& line_two)
: line_one_(line_one)
, line_two_(line_two)
{
Initialize();
}
@ -50,10 +49,12 @@ public:
* @param[in] line_one Tle line one
* @param[in] line_two Tle line two
*/
Tle(std::string name, std::string line_one, std::string line_two)
: name_(std::move(name))
, line_one_(std::move(line_one))
, line_two_(std::move(line_two))
Tle(const std::string& name,
const std::string& line_one,
const std::string& line_two)
: name_(name)
, line_one_(line_one)
, line_two_(line_two)
{
Initialize();
}
@ -316,17 +317,17 @@ private:
std::string int_designator_;
DateTime epoch_;
double mean_motion_dt2_{};
double mean_motion_ddt6_{};
double bstar_{};
double inclination_{};
double right_ascending_node_{};
double eccentricity_{};
double argument_perigee_{};
double mean_anomaly_{};
double mean_motion_{};
unsigned int norad_number_{};
unsigned int orbit_number_{};
double mean_motion_dt2_;
double mean_motion_ddt6_;
double bstar_;
double inclination_;
double right_ascending_node_;
double eccentricity_;
double argument_perigee_;
double mean_anomaly_;
double mean_motion_;
unsigned int norad_number_;
unsigned int orbit_number_;
static const unsigned int TLE_LEN_LINE_DATA = 69;
static const unsigned int TLE_LEN_LINE_NAME = 22;
@ -338,4 +339,4 @@ inline std::ostream& operator<<(std::ostream& strm, const Tle& t)
return strm << t.ToString();
}
} // namespace libsgp4
#endif

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@ -15,14 +15,12 @@
*/
#pragma once
#ifndef TLEEXCEPTION_H_
#define TLEEXCEPTION_H_
#include <stdexcept>
#include <string>
namespace libsgp4
{
/**
* @brief The exception that the Tle class throws on an error.
*
@ -35,10 +33,10 @@ public:
* Constructor
* @param message Exception message
*/
explicit TleException(const char* message)
TleException(const char* message)
: runtime_error(message)
{
}
};
} // namespace libsgp4
#endif

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@ -21,17 +21,28 @@
#include <locale>
#include <functional>
namespace libsgp4::Util
namespace Util
{
namespace
{
struct IsDigit: std::unary_function<char, bool>
{
bool operator()(char c) const
{
return std::isdigit(c, std::locale::classic()) == 0;
}
};
}
void TrimLeft(std::string& s)
{
s.erase(s.begin(),
std::find_if(s.begin(), s.end(), [](unsigned char c){ return std::isgraph(c) != 0; }));
std::find_if(s.begin(), s.end(), std::not1(IsDigit())));
}
void TrimRight(std::string& s)
{
s.erase(std::find_if(s.rbegin(), s.rend(), [](unsigned char c){ return std::isgraph(c) != 0; }).base(),
s.erase(std::find_if(s.rbegin(), s.rend(), std::not1(IsDigit())).base(),
s.end());
}
@ -40,4 +51,4 @@ namespace libsgp4::Util
TrimLeft(s);
TrimRight(s);
}
} // namespace libsgp4::Util
}

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@ -15,14 +15,13 @@
*/
#pragma once
#ifndef UTIL_H_
#define UTIL_H_
#include "Globals.h"
#include <sstream>
namespace libsgp4
{
namespace Util
{
template
@ -51,7 +50,7 @@ namespace Util
{
return Mod(a + kPI, kTWOPI) - kPI;
}
inline double WrapTwoPI(const double a)
{
return Mod(a, kTWOPI);
@ -102,10 +101,10 @@ namespace Util
}
}
}
void TrimLeft(std::string& s);
void TrimRight(std::string& s);
void Trim(std::string& s);
}
} // namespace Util
} // namespace libsgp4
#endif

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@ -15,16 +15,14 @@
*/
#pragma once
#ifndef VECTOR_H_
#define VECTOR_H_
#include <cmath>
#include <string>
#include <sstream>
#include <iomanip>
namespace libsgp4
{
/**
* @brief Generic vector
*
@ -37,7 +35,10 @@ public:
/**
* Default constructor
*/
Vector() = default;
Vector()
: x(0.0), y(0.0), z(0.0), w(0.0)
{
}
/**
* Constructor
@ -48,7 +49,7 @@ public:
Vector(const double arg_x,
const double arg_y,
const double arg_z)
: x(arg_x), y(arg_y), z(arg_z)
: x(arg_x), y(arg_y), z(arg_z), w(0.0)
{
}
@ -66,7 +67,7 @@ public:
: x(arg_x), y(arg_y), z(arg_z), w(arg_w)
{
}
/**
* Copy constructor
* @param v value to copy from
@ -143,13 +144,13 @@ public:
}
/** x value */
double x{};
double x;
/** y value */
double y{};
double y;
/** z value */
double z{};
double z;
/** w value */
double w{};
double w;
};
inline std::ostream& operator<<(std::ostream& strm, const Vector& v)
@ -157,4 +158,4 @@ inline std::ostream& operator<<(std::ostream& strm, const Vector& v)
return strm << v.ToString();
}
} // namespace libsgp4
#endif

View File

@ -27,25 +27,25 @@
struct PassDetails
{
libsgp4::DateTime aos;
libsgp4::DateTime los;
DateTime aos;
DateTime los;
double max_elevation;
};
double FindMaxElevation(
const libsgp4::CoordGeodetic& user_geo,
libsgp4::SGP4& sgp4,
const libsgp4::DateTime& aos,
const libsgp4::DateTime& los)
const CoordGeodetic& user_geo,
SGP4& sgp4,
const DateTime& aos,
const DateTime& los)
{
libsgp4::Observer obs(user_geo);
Observer obs(user_geo);
bool running;
double time_step = (los - aos).TotalSeconds() / 9.0;
libsgp4::DateTime current_time(aos); //! current time
libsgp4::DateTime time1(aos); //! start time of search period
libsgp4::DateTime time2(los); //! end time of search period
DateTime current_time(aos); //! current time
DateTime time1(aos); //! start time of search period
DateTime time2(los); //! end time of search period
double max_elevation; //! max elevation
running = true;
@ -59,8 +59,8 @@ double FindMaxElevation(
/*
* find position
*/
libsgp4::Eci eci = sgp4.FindPosition(current_time);
libsgp4::CoordTopocentric topo = obs.GetLookAngle(eci);
Eci eci = sgp4.FindPosition(current_time);
CoordTopocentric topo = obs.GetLookAngle(eci);
if (topo.elevation > max_elevation)
{
@ -111,21 +111,21 @@ double FindMaxElevation(
return max_elevation;
}
libsgp4::DateTime FindCrossingPoint(
const libsgp4::CoordGeodetic& user_geo,
libsgp4::SGP4& sgp4,
const libsgp4::DateTime& initial_time1,
const libsgp4::DateTime& initial_time2,
DateTime FindCrossingPoint(
const CoordGeodetic& user_geo,
SGP4& sgp4,
const DateTime& initial_time1,
const DateTime& initial_time2,
bool finding_aos)
{
libsgp4::Observer obs(user_geo);
Observer obs(user_geo);
bool running;
int cnt;
libsgp4::DateTime time1(initial_time1);
libsgp4::DateTime time2(initial_time2);
libsgp4::DateTime middle_time;
DateTime time1(initial_time1);
DateTime time2(initial_time2);
DateTime middle_time;
running = true;
cnt = 0;
@ -135,8 +135,8 @@ libsgp4::DateTime FindCrossingPoint(
/*
* calculate satellite position
*/
libsgp4::Eci eci = sgp4.FindPosition(middle_time);
libsgp4::CoordTopocentric topo = obs.GetLookAngle(eci);
Eci eci = sgp4.FindPosition(middle_time);
CoordTopocentric topo = obs.GetLookAngle(eci);
if (topo.elevation > 0.0)
{
@ -189,8 +189,8 @@ libsgp4::DateTime FindCrossingPoint(
cnt = 0;
while (running && cnt++ < 6)
{
libsgp4::Eci eci = sgp4.FindPosition(middle_time);
libsgp4::CoordTopocentric topo = obs.GetLookAngle(eci);
Eci eci = sgp4.FindPosition(middle_time);
CoordTopocentric topo = obs.GetLookAngle(eci);
if (topo.elevation > 0)
{
middle_time = middle_time.AddSeconds(finding_aos ? -1 : 1);
@ -205,23 +205,23 @@ libsgp4::DateTime FindCrossingPoint(
}
std::list<struct PassDetails> GeneratePassList(
const libsgp4::CoordGeodetic& user_geo,
libsgp4::SGP4& sgp4,
const libsgp4::DateTime& start_time,
const libsgp4::DateTime& end_time,
const CoordGeodetic& user_geo,
SGP4& sgp4,
const DateTime& start_time,
const DateTime& end_time,
const int time_step)
{
std::list<struct PassDetails> pass_list;
libsgp4::Observer obs(user_geo);
Observer obs(user_geo);
libsgp4::DateTime aos_time;
libsgp4::DateTime los_time;
DateTime aos_time;
DateTime los_time;
bool found_aos = false;
libsgp4::DateTime previous_time(start_time);
libsgp4::DateTime current_time(start_time);
DateTime previous_time(start_time);
DateTime current_time(start_time);
while (current_time < end_time)
{
@ -230,8 +230,8 @@ std::list<struct PassDetails> GeneratePassList(
/*
* calculate satellite position
*/
libsgp4::Eci eci = sgp4.FindPosition(current_time);
libsgp4::CoordTopocentric topo = obs.GetLookAngle(eci);
Eci eci = sgp4.FindPosition(current_time);
CoordTopocentric topo = obs.GetLookAngle(eci);
if (!found_aos && topo.elevation > 0.0)
{
@ -301,14 +301,14 @@ std::list<struct PassDetails> GeneratePassList(
/*
* at the end of the pass move the time along by 30mins
*/
current_time = current_time + libsgp4::TimeSpan(0, 30, 0);
current_time = current_time + TimeSpan(0, 30, 0);
}
else
{
/*
* move the time along by the time step value
*/
current_time = current_time + libsgp4::TimeSpan(0, 0, time_step);
current_time = current_time + TimeSpan(0, 0, time_step);
}
if (current_time > end_time)
@ -330,6 +330,7 @@ std::list<struct PassDetails> GeneratePassList(
pd.aos = aos_time;
pd.los = end_time;
pd.max_elevation = FindMaxElevation(user_geo, sgp4, aos_time, end_time);
pass_list.push_back(pd);
}
@ -338,19 +339,19 @@ std::list<struct PassDetails> GeneratePassList(
int main()
{
libsgp4::CoordGeodetic geo(51.507406923983446, -0.12773752212524414, 0.05);
libsgp4::Tle tle("GALILEO-PFM (GSAT0101) ",
CoordGeodetic geo(51.507406923983446, -0.12773752212524414, 0.05);
Tle tle("GALILEO-PFM (GSAT0101) ",
"1 37846U 11060A 12293.53312491 .00000049 00000-0 00000-0 0 1435",
"2 37846 54.7963 119.5777 0000994 319.0618 40.9779 1.70474628 6204");
libsgp4::SGP4 sgp4(tle);
SGP4 sgp4(tle);
std::cout << tle << std::endl;
/*
* generate 7 day schedule
*/
libsgp4::DateTime start_date = libsgp4::DateTime::Now(true);
libsgp4::DateTime end_date(start_date.AddDays(7.0));
DateTime start_date = DateTime::Now(true);
DateTime end_date(start_date.AddDays(7.0));
std::list<struct PassDetails> pass_list;
@ -377,7 +378,7 @@ int main()
{
ss << "AOS: " << itr->aos
<< ", LOS: " << itr->los
<< ", Max El: " << std::setw(4) << libsgp4::Util::RadiansToDegrees(itr->max_elevation)
<< ", Max El: " << std::setw(4) << Util::RadiansToDegrees(itr->max_elevation)
<< ", Duration: " << (itr->los - itr->aos)
<< std::endl;
}

View File

@ -29,10 +29,10 @@
#include <vector>
#include <cstdlib>
void RunTle(libsgp4::Tle tle, double start, double end, double inc)
void RunTle(Tle tle, double start, double end, double inc)
{
double current = start;
libsgp4::SGP4 model(tle);
SGP4 model(tle);
bool running = true;
bool first_run = true;
@ -42,13 +42,13 @@ void RunTle(libsgp4::Tle tle, double start, double end, double inc)
while (running)
{
bool error = false;
libsgp4::Vector position;
libsgp4::Vector velocity;
Vector position;
Vector velocity;
double tsince;
try
{
if (first_run && current != 0.0)
if (first_run && current != 0.0)
{
/*
* make sure first run is always as zero
@ -63,17 +63,17 @@ void RunTle(libsgp4::Tle tle, double start, double end, double inc)
tsince = current;
}
libsgp4::Eci eci = model.FindPosition(tsince);
Eci eci = model.FindPosition(tsince);
position = eci.Position();
velocity = eci.Velocity();
}
catch (libsgp4::SatelliteException& e)
catch (SatelliteException& e)
{
std::cerr << e.what() << std::endl;
error = true;
running = false;
}
catch (libsgp4::DecayedException& e)
catch (DecayedException& e)
{
std::cerr << e.what() << std::endl;
@ -181,7 +181,7 @@ void RunTest(const char* infile)
std::string line;
std::getline(file, line);
libsgp4::Util::Trim(line);
Util::Trim(line);
/*
* skip blank lines or lines starting with #
@ -199,7 +199,7 @@ void RunTest(const char* infile)
{
try
{
if (line.length() >= libsgp4::Tle::LineLength())
if (line.length() >= Tle::LineLength())
{
//Tle::IsValidLine(line.substr(0, Tle::LineLength()), 1);
/*
@ -209,7 +209,7 @@ void RunTest(const char* infile)
line1 = line;
}
}
catch (libsgp4::TleException& e)
catch (TleException& e)
{
std::cerr << "Error: " << e.what() << std::endl;
std::cerr << line << std::endl;
@ -225,15 +225,15 @@ void RunTest(const char* infile)
* split line, first 69 is the second line of the tle
* the rest is the test parameters, if there is any
*/
line2 = line.substr(0, libsgp4::Tle::LineLength());
line2 = line.substr(0, Tle::LineLength());
double start = 0.0;
double end = 1440.0;
double inc = 120.0;
if (line.length() > 69)
{
std::vector<std::string> tokens;
parameters = line.substr(libsgp4::Tle::LineLength() + 1,
line.length() - libsgp4::Tle::LineLength());
parameters = line.substr(Tle::LineLength() + 1,
line.length() - Tle::LineLength());
tokenize(parameters, tokens);
if (tokens.size() >= 3)
{
@ -248,14 +248,14 @@ void RunTest(const char* infile)
*/
try
{
if (line.length() >= libsgp4::Tle::LineLength())
if (line.length() >= Tle::LineLength())
{
//Tle::IsValidLine(line.substr(0, Tle::LineLength()), 2);
libsgp4::Tle tle("Test", line1, line2);
Tle tle("Test", line1, line2);
RunTle(tle, start, end, inc);
}
}
catch (libsgp4::TleException& e)
catch (TleException& e)
{
std::cerr << "Error: " << e.what() << std::endl;
std::cerr << line << std::endl;

View File

@ -24,29 +24,29 @@
int main()
{
libsgp4::Observer obs(51.507406923983446, -0.12773752212524414, 0.05);
libsgp4::Tle tle = libsgp4::Tle("UK-DMC 2 ",
Observer obs(51.507406923983446, -0.12773752212524414, 0.05);
Tle tle = Tle("UK-DMC 2 ",
"1 35683U 09041C 12289.23158813 .00000484 00000-0 89219-4 0 5863",
"2 35683 98.0221 185.3682 0001499 100.5295 259.6088 14.69819587172294");
libsgp4::SGP4 sgp4(tle);
SGP4 sgp4(tle);
std::cout << tle << std::endl;
for (int i = 0; i < 10; ++i)
{
libsgp4::DateTime dt = tle.Epoch().AddMinutes(i * 10);
DateTime dt = tle.Epoch().AddMinutes(i * 10);
/*
* calculate satellite position
*/
libsgp4::Eci eci = sgp4.FindPosition(dt);
Eci eci = sgp4.FindPosition(dt);
/*
* get look angle for observer to satellite
*/
libsgp4::CoordTopocentric topo = obs.GetLookAngle(eci);
CoordTopocentric topo = obs.GetLookAngle(eci);
/*
* convert satellite position to geodetic coordinates
*/
libsgp4::CoordGeodetic geo = eci.ToGeodetic();
CoordGeodetic geo = eci.ToGeodetic();
std::cout << dt << " " << topo << " " << geo << std::endl;
};