Hi all,

The GNU Triangulated Surface Library is a c library used to create 3D meshed surfaces.

http://gts.sourceforge.net/

They are able to create meshed surfaces based on a mathematical description of the surface desired. This is important to me as I can take a meshed shape and get a good approximation for its aerodynamics. The library should also allow me to examine more arbitrary shapes for reentering spacecraft.

I have generated a dll of the library and am now trying to set up JNA to access it.

One of the functions I need to have access to is:

GtsSurface* gts_surface_new (GtsSurfaceClass *klass, GtsFaceClass *face_class, GtsEdgeClass *edge_class, GtsVertexClass *vertex_class);

-------Example of use------------------- GtsSurface * surface;

surface = gts_surface_new (gts_surface_class (),

gts_face_class (),

gts_edge_class (),

gts_vertex_class ());

-------------------------------------------

I believe that I would have to create classes that extend Structure for GtsSurface, GtsSurfaceClass, GtsFaceClass, GtsEdgeClass, GtsVertexClass and onwards recursively until I get to inputs such as double, int, char, etc. Wanted to make sure of this before I got too deep.

To take one example from the classes above, GtsSurfaceClass, the function I would be using to create the first argument "klass" is:

GtsSurfaceClass* gts_surface_class(void);

---------- GtsSurfaceClass is a struct defined as --------------- typedef struct { GtsObjectClass parent_class;

void (* add_face) (GtsSurface *, GtsFace *); void (* remove_face) (GtsSurface *, GtsFace *); } GtsSurfaceClass;

---------------------------------------------------------------------

I don't need to access the functions within GtsSurfaceClass so would I just create a class called GtsSurfaceClass that extends Structure like so?

public class GtsSurfaceClass extends Structure { }

Do I have to include the functions that I believe I would need a Callback for?

thanks, Richard