177 struct HFA {  struct
178   double x;
179   double y;
181   double z;
187 struct HFA {  struct
188   double x;
189   double y;
191   double z;
207 struct HFA {  struct
208   double x;
209   double y;
210   double z;
227 struct HFA {  struct
228   double x;
229   double y;
230   double z;
237 struct HFA {  struct
238   double x;
239   double y;
240   double z;
258 struct HFA : non_empty_base {  struct
259   double x;
260   double y;
261   double z;
279 struct HFA {  struct
280   double x;
281   double y;
282   double z;
283   non_empty e;