Hi Linh, VPB/osgdem decorates databases with a CoordinateSystemNode which will record the cooridnate system it uses. VPB does default to using WGS84 when working geocentric, but you haven't mentioned any of the osgdem options so I can't really say whether this will have been applied.
I must admit I have yet to work with anything other than earth bound imagery/dem's so have not been able to test it out on other planetary data. Would it be possible to provide me with some? Robert. On Thu, Apr 24, 2008 at 3:40 AM, Linh Phan <[EMAIL PROTECTED]> wrote: > Hi, > > I have GeoTIFF file with a DEM_1m_VictoriaCrater.prj: > > > PROJCS["Plate_Carree",GEOGCS["EQUIRECTANGULAR_CYLINDRICAL_MARS",DATUM["D_MARS", > > SPHEROID["MARS",3396190,0]],PRIMEM["Reference_Meridian",0],UNIT["Degree",0.017453292519943295]], > > PROJECTION["Plate_Carree"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",180], > PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["Meter",1]] > > osgdem successfully generate a dem for the DEM_1m_VictoriaCrater.tif. > I was wondering if osg's getWorldIntersectPoint: > > intersectPoint=hlist.front().getWorldIntersectPoint(); > > will return the intersectPoint in the Mars body frame, ie will the norm > of "intersectPoint._v" be around 3396190 meters, the Mars radius? > > Thanks alot, > > Linh > > > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
