FA-26269 / Filter interfaces / Member archive

Brush lower bounds clamp to the domain after drag normalization · case 04

Brush lower bounds clamp to the domain after drag normalization is violated by the widget projection.

Member previewVariant 4 · 3 implementations · 10 checks per implementation

Case contract

A histogram brush selects intersecting bucket identities over a half-open horizontal interval; clicks without width do not create a range and the final brush converts to domain edges. This example checks: Brush lower bounds clamp to the domain after drag normalization.

Why this case matters

Filter-widget state and serialization must preserve user constraints while the view changes.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixture	Actual	Expected	Outcome
contract fixture 0	`{"brush-domain-end": 1, "brush-domain-start": -1, "brush-publish": true, "bucket-intersection": [0], "click-no-range": false, "normalize-drag": [-1, 1]}`	`{"brush-domain-end": 1, "brush-domain-start": 0, "brush-publish": true, "bucket-intersection": [0], "click-no-range": false, "normalize-drag": [-1, 1]}`	Failed

MEMBER ARCHIVE

The complete case is available to members.

This record includes three runnable implementations, regression fixtures, execution results, and source hashes.

Member access is invitation-based. Sign in with your invited account to inspect the sources.