// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Library General Public License for more details.
//
-// You should have received a copy of the GNU Library General Public
-// License along with this library; if not, write to the
-// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-// Boston, MA 02111-1307, USA.
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
#ifndef SGGeod_H
#include <simgear/constants.h>
+#include <osg/Matrix>
+
// #define SG_GEOD_NATIVE_DEGREE
/// Class representing a geodetic location
public:
/// Default constructor, initializes the instance to lat = lon = elev = 0
SGGeod(void);
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- /// Note that this conversion is relatively expensive to compute
- SGGeod(const SGGeoc& geoc);
-
- SGGeod(const SGVec3<double>& cart);
/// Factory from angular values in radians and elevation is 0
static SGGeod fromRad(double lon, double lat);
static SGGeod fromRadM(double lon, double lat, double elevation);
/// Factory from angular values in degrees and elevation in m
static SGGeod fromDegM(double lon, double lat, double elevation);
+ /// Factory to convert position from a cartesian position assumed to be
+ /// in wgs84 measured in meters
+ /// Note that this conversion is relatively expensive to compute
+ static SGGeod fromCart(const SGVec3<double>& cart);
+ /// Factory to convert position from a geocentric position
+ /// Note that this conversion is relatively expensive to compute
+ static SGGeod fromGeoc(const SGGeoc& geoc);
/// Return the geodetic longitude in radians
double getLongitudeRad(void) const;
/// Set the geodetic elevation from the argument given in feet
void setElevationFt(double elevation);
+ // Create a local coordinate frame in the earth-centered frame of
+ // reference. X points north, Z points down.
+ // makeSimulationFrameRelative() only includes rotation.
+
+ osg::Matrix makeSimulationFrameRelative();
+ osg::Matrix makeSimulationFrame();
+
+ // Create a Z-up local coordinate frame in the earth-centered frame
+ // of reference. This is what scenery models, etc. expect.
+ // makeZUpFrameRelative() only includes rotation.
+ osg::Matrix makeZUpFrameRelative();
+ osg::Matrix makeZUpFrame();
private:
/// This one is private since construction is not unique if you do
/// not know the units of the arguments. Use the factory methods for
{
}
-inline
-SGGeod::SGGeod(const SGVec3<double>& cart)
-{
- SGGeodesy::SGCartToGeod(cart, *this);
-}
-
-inline
-SGGeod::SGGeod(const SGGeoc& geoc)
-{
- SGVec3<double> cart;
- SGGeodesy::SGGeocToCart(geoc, cart);
- SGGeodesy::SGCartToGeod(cart, *this);
-}
-
inline
SGGeod
SGGeod::fromRad(double lon, double lat)
#endif
}
+inline
+SGGeod
+SGGeod::fromCart(const SGVec3<double>& cart)
+{
+ SGGeod geod;
+ SGGeodesy::SGCartToGeod(cart, geod);
+ return geod;
+}
+
+inline
+SGGeod
+SGGeod::fromGeoc(const SGGeoc& geoc)
+{
+ SGVec3<double> cart;
+ SGGeodesy::SGGeocToCart(geoc, cart);
+ SGGeod geod;
+ SGGeodesy::SGCartToGeod(cart, geod);
+ return geod;
+}
+
inline
double
SGGeod::getLongitudeRad(void) const