plugins.contracts.EdgeSet

plugins.contracts.EdgeSet(
    polylines,
    closed,
    patches,
    kind,
    residual,
    vertices,
    stats=dict(),
)

The feature curves of a scene, as polylines ready to draw.

What the feature_edges kind returns. NumPy throughout, no derivative: these are display segments.

Attributes

Name	Type	Description
polylines	tuple[np.ndarray, …]	One (k, 3) array per curve, ordered along it; a closed curve does not repeat its first point.
closed	np.ndarray	Per curve, whether it closes on itself, (n,) bool.
patches	np.ndarray	Per curve, the two global patch indices whose zero sets meet on it, (n, 2) int32.
kind	tuple[str, …]	Per curve, how it was produced ("traced", "sampled").
residual	np.ndarray	Per curve, the largest \|f\| its points carry against its two patches, (n,) float64.
vertices	np.ndarray	Per curve, the triple-point indices at its two ends, (n, 2) int32, -1 where an end is free.
stats	dict[str, Any]	Counts and timings. stats["mesh"], when present, is the (points, quads) pair of the dual-contour pass the extraction ran, so the public wire layer can reuse it instead of running a second pass.

Methods

Name	Description
chords	Every curve as consecutive point pairs, shaped (m, 2, 3).
from_mapping	Rebuild the set from :meth:to_mapping’s output.
to_mapping	The set as a plain mapping (stats excluded).

chords

plugins.contracts.EdgeSet.chords()

Every curve as consecutive point pairs, shaped (m, 2, 3).

from_mapping

plugins.contracts.EdgeSet.from_mapping(data)

Rebuild the set from :meth:to_mapping’s output.

to_mapping

plugins.contracts.EdgeSet.to_mapping()

The set as a plain mapping (stats excluded).