pointsseq¶

Sequences of Points.

class nutils.pointsseq.PointsSequence(ndims)¶

Bases: Singleton

Abstract base class for a sequence of Points.

Parameters:: ndims (int) – The dimension of the point coordinates.

ndims¶

The dimension of the point coordinates.

Type:: int

Notes

Subclasses must implement __len__() and get().

static from_iter(value, ndims)¶

Create a PointsSequence from an iterator.

Parameters:

value (iterable of Points objects) –
ndims (int) –

Returns:

sequence

Return type:

PointsSequence

static uniform(value, length)¶

Create a uniform PointsSequence.

Parameters:

value (Points) –
length (int) –

Returns:

sequence

Return type:

PointsSequence

static empty(ndims)¶

Create an empty PointsSequence.

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

npoints¶: The total number of points in this sequence.

__bool__(self)¶: Return bool(self).

abstract __len__(self)¶: Return len(self).

__iter__(self)¶: Implement iter(self).

__getitem__(index: int) → Points¶
__getitem__(index: Union[slice, ndarray]) → PointsSequence: Return self[index].

__add__(self, other)¶: Return self+other.

__mul__(other: int) → Points¶
__mul__(other: PointsSequence) → PointsSequence: Return self*other.

abstract get(self, index)¶

Return the points at index.

Parameters:: index (int) –
Returns:: points – The points at index.
Return type:: Points

take(self, indices)¶

Return a selection of this sequence.

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

compress(self, mask)¶

Return a selection of this sequence.

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

repeat(self, count)¶

Return this sequence repeated count times.

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

product(self, other)¶

Return the product of this sequence with another sequence.

Parameters:: other (PointsSequence) –
Returns:: sequence – This product sequence.
Return type:: PointsSequence

chain(self, other)¶

Return the chained sequence of this sequence with other.

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

tri¶

Triangulation of interior.

A two-dimensional integer array with ndims+1 columns, of which every row defines a simplex by mapping vertices into the list of points.

hull¶

Triangulation of the exterior hull.

A two-dimensional integer array with ndims columns, of which every row defines a simplex by mapping vertices into the list of points. Note that the hull often does contain internal element boundaries as the triangulations originating from separate elements are disconnected.