mirror of
https://github.com/tumic0/GPXSee.git
synced 2024-10-06 06:43:22 +02:00
Added support for EPSG:9606 and EPSG:9607 datum transformations
This commit is contained in:
parent
bd6c6ef344
commit
792ec17a20
@ -126,7 +126,8 @@ HEADERS += src/config.h \
|
||||
src/data/igcparser.h \
|
||||
src/data/nmeaparser.h \
|
||||
src/data/oziparsers.h \
|
||||
src/map/rectd.h
|
||||
src/map/rectd.h \
|
||||
src/map/geocentric.h
|
||||
SOURCES += src/main.cpp \
|
||||
src/common/coordinates.cpp \
|
||||
src/common/rectc.cpp \
|
||||
@ -220,7 +221,8 @@ SOURCES += src/main.cpp \
|
||||
src/data/fitparser.cpp \
|
||||
src/data/igcparser.cpp \
|
||||
src/data/nmeaparser.cpp \
|
||||
src/data/oziparsers.cpp
|
||||
src/data/oziparsers.cpp \
|
||||
src/map/geocentric.cpp
|
||||
RESOURCES += gpxsee.qrc
|
||||
TRANSLATIONS = lang/gpxsee_cs.ts \
|
||||
lang/gpxsee_sv.ts \
|
||||
|
||||
@ -2,6 +2,10 @@
|
||||
#include "common/wgs84.h"
|
||||
#include "datum.h"
|
||||
|
||||
|
||||
#define as2rad(x) ((x) * 4.84814e-6)
|
||||
#define rad2as(x) ((x) * 206265.0)
|
||||
|
||||
static Ellipsoid WGS84e = Ellipsoid(WGS84_RADIUS, WGS84_FLATTENING);
|
||||
static Datum WGS84 = Datum(&WGS84e, 0.0, 0.0, 0.0);
|
||||
|
||||
@ -43,29 +47,103 @@ static Coordinates molodensky(const Coordinates &c, const Datum &from,
|
||||
return Coordinates(c.lon() + rad2deg(dlon), c.lat() + rad2deg(dlat));
|
||||
}
|
||||
|
||||
Datum::Datum(const Ellipsoid *ellipsoid, double dx, double dy, double dz)
|
||||
: _ellipsoid(ellipsoid), _dx(dx), _dy(dy), _dz(dz)
|
||||
|
||||
Point3D Datum::helmert(const Point3D &p) const
|
||||
{
|
||||
_WGS84 = (_ellipsoid->radius() == WGS84_RADIUS
|
||||
&& _ellipsoid->flattening() == WGS84_FLATTENING && _dx == 0.0
|
||||
&& _dy == 0.0 && _dz == 0.0) ? true : false;
|
||||
double scale = 1 + _ds * 1e-6;
|
||||
double R00 = 1;
|
||||
double R01 = _rz;
|
||||
double R02 = -_ry;
|
||||
double R10 = -_rz;
|
||||
double R11 = 1;
|
||||
double R12 = _rx;
|
||||
double R20 = _ry;
|
||||
double R21 = -_rx;
|
||||
double R22 = 1;
|
||||
|
||||
return Point3D(scale * (R00 * p.x() + R01 * p.y() + R02 * p.z()) + _dx,
|
||||
scale * (R10 * p.x() + R11 * p.y() + R12 * p.z()) + _dy,
|
||||
scale * (R20 * p.x() + R21 * p.y() + R22 * p.z()) + _dz);
|
||||
}
|
||||
|
||||
Point3D Datum::helmertr(const Point3D &p) const
|
||||
{
|
||||
double scale = 1 + _ds * 1e-6;
|
||||
double R00 = 1;
|
||||
double R01 = _rz;
|
||||
double R02 = -_ry;
|
||||
double R10 = -_rz;
|
||||
double R11 = 1;
|
||||
double R12 = _rx;
|
||||
double R20 = _ry;
|
||||
double R21 = -_rx;
|
||||
double R22 = 1;
|
||||
|
||||
double x = (p.x() - _dx) / scale;
|
||||
double y = (p.y() - _dy) / scale;
|
||||
double z = (p.z() - _dz) / scale;
|
||||
|
||||
return Point3D(R00 * x + R10 * y + R20 * z, R01 * x + R11 * y + R21 * z,
|
||||
R02 * x + R12 * y + R22 * z);
|
||||
}
|
||||
|
||||
Datum::Datum(const Ellipsoid *ellipsoid, double dx, double dy, double dz,
|
||||
double rx, double ry, double rz, double ds)
|
||||
: _ellipsoid(ellipsoid), _dx(dx), _dy(dy), _dz(dz), _rx(as2rad(rx)),
|
||||
_ry(as2rad(ry)), _rz(as2rad(rz)), _ds(ds)
|
||||
{
|
||||
if (_ellipsoid->radius() == WGS84_RADIUS && _ellipsoid->flattening()
|
||||
== WGS84_FLATTENING && _dx == 0.0 && _dy == 0.0 && _dz == 0.0
|
||||
&& _rx == 0.0 && _ry == 0.0 && _rz == 0.0 && _ds == 0.0)
|
||||
_shift = None;
|
||||
else
|
||||
_shift = Helmert;
|
||||
}
|
||||
|
||||
Datum::Datum(const Ellipsoid *ellipsoid, double dx, double dy, double dz)
|
||||
: _ellipsoid(ellipsoid), _dx(dx), _dy(dy), _dz(dz), _rx(0.0), _ry(0.0),
|
||||
_rz(0.0), _ds(0.0)
|
||||
{
|
||||
if (_ellipsoid->radius() == WGS84_RADIUS && _ellipsoid->flattening()
|
||||
== WGS84_FLATTENING && _dx == 0.0 && _dy == 0.0 && _dz == 0.0)
|
||||
_shift = None;
|
||||
else
|
||||
_shift = Molodensky;
|
||||
}
|
||||
|
||||
Coordinates Datum::toWGS84(const Coordinates &c) const
|
||||
{
|
||||
return _WGS84 ? c : molodensky(c, *this, WGS84);
|
||||
switch (_shift) {
|
||||
case Helmert:
|
||||
return Geocentric::toGeodetic(helmert(Geocentric::fromGeodetic(c,
|
||||
*this)), WGS84);
|
||||
case Molodensky:
|
||||
return molodensky(c, *this, WGS84);
|
||||
default:
|
||||
return c;
|
||||
}
|
||||
}
|
||||
|
||||
Coordinates Datum::fromWGS84(const Coordinates &c) const
|
||||
{
|
||||
return _WGS84 ? c : molodensky(c, WGS84, *this);
|
||||
switch (_shift) {
|
||||
case Helmert:
|
||||
return Geocentric::toGeodetic(helmertr(Geocentric::fromGeodetic(c,
|
||||
WGS84)), *this);
|
||||
case Molodensky:
|
||||
return molodensky(c, WGS84, *this);
|
||||
default:
|
||||
return c;
|
||||
}
|
||||
}
|
||||
|
||||
#ifndef QT_NO_DEBUG
|
||||
QDebug operator<<(QDebug dbg, const Datum &datum)
|
||||
{
|
||||
dbg.nospace() << "Datum(" << *datum.ellipsoid() << ", " << datum.dx()
|
||||
<< ", " << datum.dy() << ", " << datum.dz() << ")";
|
||||
<< ", " << datum.dy() << ", " << datum.dz() << ", " << rad2as(datum.rx())
|
||||
<< ", " << rad2as(datum.ry()) << ", " << rad2as(datum.rz()) << ", "
|
||||
<< datum.ds() << ")";
|
||||
return dbg.space();
|
||||
}
|
||||
#endif // QT_NO_DEBUG
|
||||
|
||||
@ -4,40 +4,57 @@
|
||||
#include <cmath>
|
||||
#include <QList>
|
||||
#include <QDebug>
|
||||
#include "ellipsoid.h"
|
||||
#include "common/coordinates.h"
|
||||
#include "ellipsoid.h"
|
||||
#include "geocentric.h"
|
||||
|
||||
class Datum
|
||||
{
|
||||
public:
|
||||
Datum() : _ellipsoid(0), _dx(NAN), _dy(NAN), _dz(NAN),
|
||||
_WGS84(false) {}
|
||||
Datum() : _ellipsoid(0), _shift(None), _dx(NAN), _dy(NAN), _dz(NAN),
|
||||
_rx(NAN), _ry(NAN), _rz(NAN), _ds(NAN) {}
|
||||
Datum(const Ellipsoid *ellipsoid, double dx, double dy, double dz,
|
||||
double rx, double ry, double rz, double ds);
|
||||
Datum(const Ellipsoid *ellipsoid, double dx, double dy, double dz);
|
||||
|
||||
const Ellipsoid *ellipsoid() const {return _ellipsoid;}
|
||||
double dx() const {return _dx;}
|
||||
double dy() const {return _dy;}
|
||||
double dz() const {return _dz;}
|
||||
double ds() const {return _ds;}
|
||||
double rx() const {return _rx;}
|
||||
double ry() const {return _ry;}
|
||||
double rz() const {return _rz;}
|
||||
|
||||
bool isNull() const
|
||||
{return (!_ellipsoid && std::isnan(_dx) && std::isnan(_dy)
|
||||
&& std::isnan(_dz));}
|
||||
{return !_ellipsoid;}
|
||||
bool isValid() const
|
||||
{return (_ellipsoid && !std::isnan(_dx) && !std::isnan(_dy)
|
||||
&& !std::isnan(_dz));}
|
||||
&& !std::isnan(_dz) && !std::isnan(_ds) && !std::isnan(_rx)
|
||||
&& !std::isnan(_ry) && !std::isnan(_rz));}
|
||||
|
||||
Coordinates toWGS84(const Coordinates &c) const;
|
||||
Coordinates fromWGS84(const Coordinates &c) const;
|
||||
|
||||
private:
|
||||
enum ShiftType {
|
||||
None,
|
||||
Molodensky,
|
||||
Helmert
|
||||
};
|
||||
|
||||
Point3D helmert(const Point3D &p) const;
|
||||
Point3D helmertr(const Point3D &p) const;
|
||||
|
||||
const Ellipsoid *_ellipsoid;
|
||||
double _dx, _dy, _dz;
|
||||
bool _WGS84;
|
||||
ShiftType _shift;
|
||||
double _dx, _dy, _dz, _rx, _ry, _rz, _ds;
|
||||
};
|
||||
|
||||
inline bool operator==(const Datum &d1, const Datum &d2)
|
||||
{return (d1.ellipsoid() == d2.ellipsoid() && d1.dx() == d2.dx()
|
||||
&& d1.dy() == d2.dy() && d1.dz() == d2.dz());}
|
||||
{return (*d1.ellipsoid() == *d2.ellipsoid() && d1.dx() == d2.dx()
|
||||
&& d1.dy() == d2.dy() && d1.dz() == d2.dz() && d1.rx() == d2.rx()
|
||||
&& d1.ry() == d2.ry() && d1.rz() == d2.rz() && d1.ds() == d2.ds());}
|
||||
|
||||
#ifndef QT_NO_DEBUG
|
||||
QDebug operator<<(QDebug dbg, const Datum &datum);
|
||||
|
||||
@ -78,6 +78,7 @@ void GCS::loadList(const QString &path)
|
||||
bool res;
|
||||
int ln = 0;
|
||||
const Ellipsoid *e;
|
||||
double ds, rx, ry, rz;
|
||||
|
||||
|
||||
if (!file.open(QFile::ReadOnly)) {
|
||||
@ -145,6 +146,33 @@ void GCS::loadList(const QString &path)
|
||||
qWarning("%s:%d: Invalid dz", qPrintable(path), ln);
|
||||
continue;
|
||||
}
|
||||
if (list.size() == 14) {
|
||||
rx = list[10].trimmed().toDouble(&res);
|
||||
if (!res) {
|
||||
qWarning("%s:%d: Invalid rx", qPrintable(path), ln);
|
||||
continue;
|
||||
}
|
||||
ry = list[11].trimmed().toDouble(&res);
|
||||
if (!res) {
|
||||
qWarning("%s:%d: Invalid ry", qPrintable(path), ln);
|
||||
continue;
|
||||
}
|
||||
rz = list[12].trimmed().toDouble(&res);
|
||||
if (!res) {
|
||||
qWarning("%s:%d: Invalid rz", qPrintable(path), ln);
|
||||
continue;
|
||||
}
|
||||
ds = list[13].trimmed().toDouble(&res);
|
||||
if (!res) {
|
||||
qWarning("%s:%d: Invalid ds", qPrintable(path), ln);
|
||||
continue;
|
||||
}
|
||||
} else {
|
||||
rx = NAN;
|
||||
ry = NAN;
|
||||
rz = NAN;
|
||||
ds = NAN;
|
||||
}
|
||||
|
||||
if (!(e = Ellipsoid::ellipsoid(el))) {
|
||||
qWarning("%s:%d: Unknown ellipsoid code", qPrintable(path), ln);
|
||||
@ -156,11 +184,22 @@ void GCS::loadList(const QString &path)
|
||||
case 9603:
|
||||
datum = Datum(e, dx, dy, dz);
|
||||
break;
|
||||
case 9606:
|
||||
datum = Datum(e, dx, dy, dz, -rx, -ry, -rz, ds);
|
||||
break;
|
||||
case 9607:
|
||||
datum = Datum(e, dx, dy, dz, rx, ry, rz, ds);
|
||||
break;
|
||||
default:
|
||||
qWarning("%s:%d: Unknown coordinates transformation method",
|
||||
qPrintable(path), ln);
|
||||
continue;
|
||||
}
|
||||
if (!datum.isValid()) {
|
||||
qWarning("%s:%d: Invalid coordinates transformation parameters",
|
||||
qPrintable(path), ln);
|
||||
continue;
|
||||
}
|
||||
|
||||
GCS gcs(datum, pm, au);
|
||||
if (gcs.isValid())
|
||||
|
||||
118
src/map/geocentric.cpp
Normal file
118
src/map/geocentric.cpp
Normal file
@ -0,0 +1,118 @@
|
||||
/*
|
||||
* Based on libgeotrans with the following Source Code Disclaimer:
|
||||
|
||||
1. The GEOTRANS source code ("the software") is provided free of charge by
|
||||
the National Imagery and Mapping Agency (NIMA) of the United States
|
||||
Department of Defense. Although NIMA makes no copyright claim under Title 17
|
||||
U.S.C., NIMA claims copyrights in the source code under other legal regimes.
|
||||
NIMA hereby grants to each user of the software a license to use and
|
||||
distribute the software, and develop derivative works.
|
||||
|
||||
2. Warranty Disclaimer: The software was developed to meet only the internal
|
||||
requirements of the U.S. National Imagery and Mapping Agency. The software
|
||||
is provided "as is," and no warranty, express or implied, including but not
|
||||
limited to the implied warranties of merchantability and fitness for
|
||||
particular purpose or arising by statute or otherwise in law or from a
|
||||
course of dealing or usage in trade, is made by NIMA as to the accuracy and
|
||||
functioning of the software.
|
||||
|
||||
3. NIMA and its personnel are not required to provide technical support or
|
||||
general assistance with respect to the software.
|
||||
|
||||
4. Neither NIMA nor its personnel will be liable for any claims, losses, or
|
||||
damages arising from or connected with the use of the software. The user
|
||||
agrees to hold harmless the United States National Imagery and Mapping
|
||||
Agency. The user's sole and exclusive remedy is to stop using the software.
|
||||
|
||||
5. NIMA requests that products developed using the software credit the
|
||||
source of the software with the following statement, "The product was
|
||||
developed using GEOTRANS, a product of the National Imagery and Mapping
|
||||
Agency and U.S. Army Engineering Research and Development Center."
|
||||
|
||||
6. For any products developed using the software, NIMA requires a disclaimer
|
||||
that use of the software does not indicate endorsement or approval of the
|
||||
product by the Secretary of Defense or the National Imagery and Mapping
|
||||
Agency. Pursuant to the United States Code, 10 U.S.C. Sec. 2797, the name of
|
||||
the National Imagery and Mapping Agency, the initials "NIMA", the seal of
|
||||
the National Imagery and Mapping Agency, or any colorable imitation thereof
|
||||
shall not be used to imply approval, endorsement, or authorization of a
|
||||
product without prior written permission from United States Secretary of
|
||||
Defense.
|
||||
|
||||
*/
|
||||
|
||||
#include "datum.h"
|
||||
#include "geocentric.h"
|
||||
|
||||
|
||||
#ifndef M_PI_2
|
||||
#define M_PI_2 1.57079632679489661923
|
||||
#endif // M_PI_2
|
||||
#define AD_C 1.0026000
|
||||
|
||||
Point3D Geocentric::fromGeodetic(const Coordinates &c, const Datum &datum)
|
||||
{
|
||||
const Ellipsoid *e = datum.ellipsoid();
|
||||
double e2 = 2.0 * e->flattening() - e->flattening() * e->flattening();
|
||||
|
||||
double lat = deg2rad(c.lat());
|
||||
double lon = deg2rad(c.lon());
|
||||
double slat = sin(lat);
|
||||
double slat2 = slat * slat;
|
||||
double clat = cos(lat);
|
||||
double Rn = e->radius() / (sqrt(1.0 - e2 * slat2));
|
||||
|
||||
if (lon > M_PI)
|
||||
lon -= (2 * M_PI);
|
||||
|
||||
return Point3D(Rn * clat * cos(lon), Rn * clat * sin(lon),
|
||||
(Rn * (1 - e2)) * slat);
|
||||
}
|
||||
|
||||
Coordinates Geocentric::toGeodetic(const Point3D &p, const Datum &datum)
|
||||
{
|
||||
const Ellipsoid *e = datum.ellipsoid();
|
||||
double b = e->radius() * (1.0 - e->flattening());
|
||||
double e2 = 2.0 * e->flattening() - e->flattening() * e->flattening();
|
||||
double ep2 = (1.0 / (1.0 - e2)) - 1.0;
|
||||
|
||||
bool pole = false;
|
||||
double lat, lon;
|
||||
|
||||
|
||||
if (p.x() == 0.0) {
|
||||
if (p.y() > 0)
|
||||
lon = M_PI_2;
|
||||
else if (p.y() < 0)
|
||||
lon = -M_PI_2;
|
||||
else {
|
||||
pole = true;
|
||||
lon = 0.0;
|
||||
if (p.z() > 0.0)
|
||||
lat = M_PI_2;
|
||||
else if (p.z() < 0.0)
|
||||
lat = -M_PI_2;
|
||||
else
|
||||
return Coordinates(rad2deg(lon), rad2deg(M_PI_2));
|
||||
}
|
||||
} else
|
||||
lon = atan2(p.y(), p.x());
|
||||
|
||||
double W2 = p.x()*p.x() + p.y()*p.y();
|
||||
double W = sqrt(W2);
|
||||
double T0 = p.z() * AD_C;
|
||||
double S0 = sqrt(T0 * T0 + W2);
|
||||
double Sin_B0 = T0 / S0;
|
||||
double Cos_B0 = W / S0;
|
||||
double Sin3_B0 = Sin_B0 * Sin_B0 * Sin_B0;
|
||||
double T1 = p.z() + b * ep2 * Sin3_B0;
|
||||
double Sum = W - e->radius() * e2 * Cos_B0 * Cos_B0 * Cos_B0;
|
||||
double S1 = sqrt(T1*T1 + Sum * Sum);
|
||||
double Sin_p1 = T1 / S1;
|
||||
double Cos_p1 = Sum / S1;
|
||||
|
||||
if (!pole)
|
||||
lat = atan(Sin_p1 / Cos_p1);
|
||||
|
||||
return Coordinates(rad2deg(lon), rad2deg(lat));
|
||||
}
|
||||
29
src/map/geocentric.h
Normal file
29
src/map/geocentric.h
Normal file
@ -0,0 +1,29 @@
|
||||
#ifndef GEOCENTRIC_H
|
||||
#define GEOCENTRIC_H
|
||||
|
||||
#include <cmath>
|
||||
#include "common/coordinates.h"
|
||||
|
||||
class Datum;
|
||||
|
||||
class Point3D {
|
||||
public:
|
||||
Point3D() : _x(NAN), _y(NAN), _z(NAN) {}
|
||||
Point3D(double x, double y, double z) : _x(x), _y(y), _z(z) {}
|
||||
|
||||
double x() const {return _x;}
|
||||
double y() const {return _y;}
|
||||
double z() const {return _z;}
|
||||
|
||||
private:
|
||||
double _x;
|
||||
double _y;
|
||||
double _z;
|
||||
};
|
||||
|
||||
namespace Geocentric {
|
||||
Point3D fromGeodetic(const Coordinates &c, const Datum &datum);
|
||||
Coordinates toGeodetic(const Point3D &p, const Datum &datum);
|
||||
}
|
||||
|
||||
#endif // GEOCENTRIC_H
|
||||
Loading…
Reference in New Issue
Block a user