Re: [Qgis-developer] spherical trigonometry

2014-06-11 Thread giulianc51
Il giorno Tue, 10 Jun 2014 12:31:19 +0200 Geo DrinX ha scritto: > Hi Giuliano, Hi Roberto, > I think this link can be useful : > > https://code.google.com/p/gpsbabel/source/browse/trunk/gpsbabel/jeeps/gpsmath.cc?r=4619 > > expecially in "GPS_Math_LatLonH_To_XYZ" and the reverse > "GPS_Mat

Re: [Qgis-developer] spherical trigonometry

2014-06-10 Thread Geo DrinX
Hi Giuliano, I think this link can be useful : https://code.google.com/p/gpsbabel/source/browse/trunk/gpsbabel/jeeps/gpsmath.cc?r=4619 expecially in "GPS_Math_LatLonH_To_XYZ" and the reverse "GPS_Math_XYX_To_LatLonH"functions. ... also if is C++ source code :( Regards Roberto 2014

[Qgis-developer] spherical trigonometry

2014-06-08 Thread giulianc51
hi all, I'm studying for my own amusement, and with the aim of deepening coordinate transformations, the spherical trigonometry; I'm building a tool to display the different configurations of spherical models: point in spherical and / or Cartesian coordinates, vectors, great and small circles, ar