setbackPerEdge

🎨 3D 预览 — 按边退界

@StartRule
Lot --> primitiveQuad(8, 6)
        setbackPerEdge(1, 2, 1, 2)
        extrude(4)
        comp(f) { top: Roof | side: Wall }

Roof --> color(0.5, 0.25, 0.15)
Wall --> color(0.75, 0.72, 0.68)