static void* convertible(PyObject *obj_ptr)
{
// Check for a null pointer.
if(!obj_ptr)
{
THROW_TYPE_ERROR("PyObject pointer was null");
}
// Make sure this is a numpy array.
if (!PyArray_Check(obj_ptr))
{
THROW_TYPE_ERROR("Conversion is only defined for numpy array and matrix types");
}
// Check the type of the array.
int npyType = PyArray_ObjectType(obj_ptr, 0);
if(!TypeToNumPy<scalar_t>::canConvert(npyType))
{
THROW_TYPE_ERROR("Can not convert " << npyArrayTypeString(obj_ptr) << " to " << toString()
<< ". Mismatched types.");
}
// Check the array dimensions.
int nd = PyArray_NDIM(obj_ptr);
if(nd != 1 && nd != 2)
{
THROW_TYPE_ERROR("Conversion is only valid for arrays with 1 or 2 dimensions. Argument has " << nd << " dimensions");
}
if(nd == 1)
{
checkVectorSizes(obj_ptr);
}
else
{
// Two-dimensional matrix type.
checkMatrixSizes(obj_ptr);
}
return obj_ptr;
}
static void checkRowVectorSizes(PyObject * obj_ptr, int cols)
{
if(!isDimensionValid(cols, ColsAtCompileTime, MaxColsAtCompileTime))
{
THROW_TYPE_ERROR("Can not convert " << npyArrayTypeString(obj_ptr) << " to " << toString()
<< ". Mismatched sizes.");
}
}
static void checkColumnVectorSizes(PyObject * obj_ptr, int rows)
{
// Check if the type can accomidate one column.
if(ColsAtCompileTime == Eigen::Dynamic || ColsAtCompileTime == 1)
{
if(!isDimensionValid(rows, RowsAtCompileTime, MaxRowsAtCompileTime))
{
THROW_TYPE_ERROR("Can not convert " << npyArrayTypeString(obj_ptr) << " to " << toString()
<< ". Mismatched sizes.");
}
}
else
{
THROW_TYPE_ERROR("Can not convert " << npyArrayTypeString(obj_ptr) << " to " << toString()
<< ". Mismatched sizes.");
}
}
static void checkMatrixSizes(PyObject * obj_ptr)
{
int rows = PyArray_DIM(obj_ptr, 0);
int cols = PyArray_DIM(obj_ptr, 1);
bool rowsValid = isDimensionValid(rows, RowsAtCompileTime, MaxRowsAtCompileTime);
bool colsValid = isDimensionValid(cols, ColsAtCompileTime, MaxColsAtCompileTime);
if(!rowsValid || !colsValid)
{
THROW_TYPE_ERROR("Can not convert " << npyArrayTypeString(obj_ptr) << " to " << toString()
<< ". Mismatched sizes.");
}
}
