static void* convertible(PyObject* obj_ptr)
{
if( !PySequence_Check( obj_ptr ) ) {
return 0;
}
if( !PyObject_HasAttrString( obj_ptr, "__len__" ) ) {
return 0;
}
bp::object py_sequence( bp::handle<>( bp::borrowed( obj_ptr ) ) );
if( 3 != bp::len( py_sequence ) ) {
return 0;
}
// Ensure that the element type is correct
for (Py_ssize_t i = 0; i < 3; ++i)
{
if (! boost::python::extract<double>(py_sequence[i]).check() )
return 0;
}
return obj_ptr;
}
static TTuple to_c_tuple( PyObject* py_obj ){
if( !convertible( py_obj ) ){
throw std::runtime_error( "Unable to construct boost::tuples::tuple from Python object!" );
}
TTuple c_tuple;
python::object py_sequence( handle<>( borrowed( py_obj ) ) );
construct_impl( py_sequence, c_tuple, mpl::int_< 0 >(), length_type() );
return c_tuple;
}
static void
construct( PyObject* py_obj, converter::rvalue_from_python_stage1_data* data){
typedef converter::rvalue_from_python_storage<TTuple> storage_t;
storage_t* the_storage = reinterpret_cast<storage_t*>( data );
void* memory_chunk = the_storage->storage.bytes;
TTuple* c_tuple = new (memory_chunk) TTuple();
data->convertible = memory_chunk;
python::object py_sequence( handle<>( borrowed( py_obj ) ) );
construct_impl( py_sequence, *c_tuple, mpl::int_< 0 >(), length_type() );
}
/*! Convert obj into RVector */
static void construct(PyObject* obj, bpl::converter::rvalue_from_python_stage1_data * data){
bpl::object py_sequence(bpl::handle<>(bpl::borrowed(obj)));
typedef bpl::converter::rvalue_from_python_storage< std::vector < GIMLI::Pos< double > > > storage_t;
storage_t* the_storage = reinterpret_cast<storage_t*>(data);
void* memory_chunk = the_storage->storage.bytes;
std::vector < GIMLI::Pos < double > > *vec = new (memory_chunk) std::vector < GIMLI::Pos < double > >(len(py_sequence));
data->convertible = memory_chunk;
for (GIMLI::Index i = 0; i < vec->size(); i ++){
(*vec)[i] = bpl::extract< GIMLI::Pos < double > >(py_sequence[i]);
}
}
/*! Check if the object is convertible */
static void * convertible(PyObject * obj){
// is obj is a sequence
if(!PySequence_Check(obj)){
return NULL;
}
// has the obj a len method
if(!PyObject_HasAttrString(obj, "__len__")){
return NULL;
}
bpl::object py_sequence(bpl::handle<>(bpl::borrowed(obj)));
if (len(py_sequence) > 0) {
bpl::object element = py_sequence[0];
bpl::extract< GIMLI::Pos< double > > type_checker(element);
if (type_checker.check()){
return obj;
} else {
std::cout << WHERE_AM_I << "element cannot converted to GIMLI::Pos< double > " << std::endl;
}
} else {
std::cout << WHERE_AM_I << " " << std::endl;
return NULL;
}
// check if there is a valid converter
// if(convertible_impl(py_sequence, boost::mpl::int_< 0 >(), length_type())){
// return obj;
// } else{
return NULL;
}
static void*
convertible(PyObject* py_obj){
if( !PySequence_Check( py_obj ) ){
return 0;
}
if( !PyObject_HasAttrString( py_obj, "__len__" ) ){
return 0;
}
python::object py_sequence( handle<>( borrowed( py_obj ) ) );
if( tuples::length< TTuple >::value != len( py_sequence ) ){
return 0;
}
if( convertible_impl( py_sequence, mpl::int_< 0 >(), length_type() ) ){
return py_obj;
}
else{
return 0;
}
}