#include <simgear/math/interpolater.hxx>
#include <simgear/sg_inlines.h>
#include <simgear/props/propertyObject.hxx>
#include <simgear/misc/strutils.hxx>
#include <simgear/math/interpolater.hxx>
#include <simgear/sg_inlines.h>
#include <simgear/props/propertyObject.hxx>
#include <simgear/misc/strutils.hxx>