netcdf examp_struct {
dimensions:
	dim0 = 3 ;
	dim1 = 4 ;
	xp_npoints = 12 ;
	xp_nspace = 2 ;
variables:
	float XP_COORDINATES(xp_npoints, xp_nspace) ;
	int velocity(dim0, dim1) ;
		velocity:units = "furlongs per fortnight" ;

// global attributes:
		:XP_CLASS = "Mesh_Struct+Node_Data" ;
data:

 XP_COORDINATES =
  0, 0,
  1, 0,
  2, 0,
  3.5, 0,
  0, 1,
  1, 1,
  2, 1,
  3, 1,
  0, 2,
  1, 2,
  2, 2,
  3, 2.5 ;

 velocity =
  0, 1, 2, 3,
  4, 5, 6, 7,
  8, 9, 10, 11 ;
}
