Function gmsh_sys::gmshModelMeshGetKeysForElements

pub unsafe extern "C" fn gmshModelMeshGetKeysForElements(
    elementType: c_int, 
    functionSpaceType: *const c_char, 
    keys: *mut *mut c_int, 
    keys_n: *mut usize, 
    coord: *mut *mut f64, 
    coord_n: *mut usize, 
    tag: c_int, 
    returnCoord: c_int, 
    ierr: *mut c_int
)

Generate the keys for the elements of type elementType in the entity of tag tag, for the functionSpaceType function space. Each key uniquely identifies a basis function in the function space. If returnCoord is set, the coord vector contains the x, y, z coordinates locating basis functions for sorting purposes. Warning: this is an experimental feature and will probably change in a future release.