仅改变指定喷头的可见水弧

提示词

只按给定喷洒形态参考调整指定喷头的可见水弧，喷头、植物和地面不动，其余喷头不变，不从图像推断覆盖率或耗水量。

Adjust only the visible water arc of the selected sprinkler using the supplied spray reference, retaining sprinkler, plants, ground, and other heads without inferring coverage or water use.