editor / effectiveCornerRadius

Function: effectiveCornerRadius()

effectiveCornerRadius(corners): number | undefined

Defined in: model/effective-corner-radius.ts:23

Corner radius actually drawn on a shape whose corners all request the same radius: the requested radius after clamping (ADR-0007), when every corner draws the same one.

Derived at every evaluation, never stored (Q8). The corners of a rectangle or of a regular polygon are clamped alike; those of a stretched polygon (F06) or of a stretched free shape have different angles and may be clamped differently: there is then no one effective radius, and each is shown per vertex. Radii closer than EPSILON are the same: the corners of a regular polygon, clamped alike in exact arithmetic, differ by at most about 1e-10 in doubles up to sizes and radii of 100 000 (review of US-021), ten times below. No corner gives +∞.

Parameters

corners

readonly Corner[]

corners of the shape, the same requested radius on each

Returns

number | undefined

the effective radius, <= the requested one; undefined when the corners draw different radii (an absent value, an option type in other languages, ADR-0025)

Kind

domain

See

docs/domain/shapes.md#radius-clamping-adr-0007