#define INVALID_ALTITUDE_VALUE -9999.0
-IMPLEMENT_STANDARD_HANDLE(HYDROData_IAltitudeObject, HYDROData_Entity)
IMPLEMENT_STANDARD_RTTIEXT(HYDROData_IAltitudeObject, HYDROData_Entity)
HYDROData_IAltitudeObject::HYDROData_IAltitudeObject()
-: HYDROData_Entity()
+: HYDROData_Entity( Geom_Z )
{
}