Here's some code I use, I'm still not quite sure what you are asking though.
void CViewScenario::convertLLHtoLocal(double Lat_deg, double Long_deg, double Alt, double &x, double &y, double &z) { double ecefx, ecefy, ecefz; mEllipse->convertLatLongHeightToXYZ( osg::DegreesToRadians((double)Lat_deg), osg::DegreesToRadians((double)Long_deg), Alt, ecefx,ecefy,ecefz); osg::Vec3d ecefpos(ecefx,ecefy,ecefz); osg::Vec3d localpos = mECEFtoLocalMatrix.preMult(ecefpos); x = localpos.x(); y = localpos.y(); z = localpos.z(); } Also see here: http://www.colorado.edu/geography/gcraft/notes/coordsys/coordsys.html The osg code follows these explanations. regards jp ümit uzun wrote: > Hi All, > > I have an earth model with "Earth Center Earth Fixed (ECEF)". > And I want to use this earth coordinate system to find target coordinate > which in decimal degrees. > I mean when I type the "latitute : 35.0 longtitute : 38.0 and height : 40.0", > I want to go this location on this earth model. So I have to traslate llh to > xyz. > But I can't use coordinate system and ellipsoidModel's function! Is there any > sample like this process. > > Thanks so much. > > > ÜMİT UZUN > > _________________________________________________________________ > Hotmail'i seviyor musunuz? Artık daha da iyi. Sürükle ve Bırak, yeni Okuma > Bölmeleri, genişletilmiş güvenlik özellikleri ve 5GB ÜCRETSİZ depolama alanı > hep birlikte sizin çevrimiçi iletişiminizi daha da kolaylaştırıyor. Tamamıyla > yeni Windows Live Hotmail. Ücretsiz hesabınızı ŞİMDİ edinin! > http://get.live.com/mail/overview/ > _______________________________________________ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org -- This message is subject to the CSIR's copyright terms and conditions, e-mail legal notice, and implemented Open Document Format (ODF) standard. The full disclaimer details can be found at http://www.csir.co.za/disclaimer.html. This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. MailScanner thanks Transtec Computers for their support. _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org