circlesToDrawables
circlesToDrawables(
c):DrawableVector[]
Defined in: core/instanced-vector.ts:78
Instanced circles → one drawable per instance.
A borders entry is the ring thickness as a fraction of the radius, which the fragment shader
paints as the outer annulus over the fill disc. The exact vector equivalent is ONE circle stroked
on its ring centreline: r·(1 − b/2) with stroke-width = r·b covers [r·(1−b), r] in the ring
colour and leaves the fill visible inside — which also renders a transparent-fill ring (the LOD
aggregate halo) correctly, where two stacked discs would fill the hole.