elementseq

The elementseq module.

class nutils.elementseq.References(ndims)

Bases: nutils.types.Singleton

Abstract base class for a sequence of Reference objects.

Parameters:ndims (int) – The number of dimensions of the references in this sequence.

Notes

Subclasses must implement __len__() and get().

static from_iter(value, ndims)

Create a References sequence from an iterator.

Parameters:

• value (iterable of Reference objects) –
• ndims (int) –

Returns:

sequence

Return type:

References

static uniform(value, length)

Create a uniform References.

Parameters:

• value (Reference) –
• length (int) –

Returns:

sequence

Return type:

References

static empty(ndims)

Create an empty References sequence.

Parameters:ndims (int) – Returns:sequence Return type:References

__bool__(self)

Return bool(self).

__len__(self)

Return len(self).

__iter__(self)

Implement iter(self).

__getitem__(self, index)

Return self[index].

__add__(self, other)

Return self+other.

__mul__(self, other)

Return self*other.

get(self, index)

Return the reference at index.

Parameters:index (int) – Returns:reference – The reference at index. Return type:Reference

take(self, indices)

Return a selection of this sequence.

Parameters:indices (numpy.ndarray, ndim: 1, dtype: int) – The indices of references of this sequence to select. Returns:references – The sequence of selected references. Return type:References

compress(self, mask)

Return a selection of this sequence.

Parameters:mask (numpy.ndarray, ndim: 1, dtype: bool) – A boolean mask of references of this sequence to select. Returns:sequence – The sequence of selected references. Return type:References

repeat(self, count)

Return this sequence repeated count times.

Parameters:count (int) – Returns:sequence – This sequence repeated count times. Return type:References

product(self, other)

Return the product of this sequence with another sequence.

Parameters:other (References) – Returns:sequence – The product sequence. Return type:References

chain(self, other)

Return the chained sequence of this sequence with other.

Parameters:other (References) – Returns:sequence – The chained sequence. Return type:References

children

Return the sequence of child references.

Returns:The sequence of child references:

(cref for ref in self for cref in ref.child_refs)

Return type:References

edges

Return the sequence of edge references.

Returns:The sequence of edge references:

(eref for ref in self for eref in ref.edge_refs)

Return type:References

isuniform

True if all reference in this sequence are equal.

getpoints(self, ischeme, degree)

Return a sequence of Points.