#include <simgear/bucket/newbucket.hxx>
#include <simgear/debug/logstream.hxx>
-#include <simgear/math/polar3d.hxx>
#include <simgear/math/sg_geodesy.hxx>
#include <simgear/math/sg_random.h>
#include <simgear/math/SGMath.hxx>
#include "ReaderWriterSTG.hxx"
#include "TileEntry.hxx"
-SG_USING_STD(string);
+using std::string;
using namespace simgear;
ModelLoadHelper *TileEntry::_modelLoader=0;