Tracery: Stone Mullions in a Window

The upper half of a large pointed arch window. Stone is carved into a slender framework, dividing the arch into several smaller pointed arch compartments, with circular and trefoil patterns filling the upper parts. The lines are of consistent width, and the joints are crisp. Glass is set between the stone framework. The patterns follow geometric rules, not arbitrary curves. Avoid: using metal window frames to imitate stone tracery, depicting the patterns as irregular free curves, making the stone framework inconsistent in thickness, making the entire window a single pane of glass.

Translated from Chinese by AI.

一扇大尖拱窗的上半部。石材被雕成細長的骨架,在拱頂內分成幾個尖拱形的小格,上方再由圓形與三葉形的圖案填滿,線條寬度一致、交接處俐落。玻璃嵌在石骨架之間。圖案有幾何規則,不是隨意的曲線。避免:用金屬窗框模仿石雕的花格、把圖案畫成無規則的自由曲線、讓石骨架的粗細不一致、把整扇窗做成單片玻璃。