长范围总图的分幅索引

提示词

将提供的长条研究范围按确认分幅展示，总索引图标出各幅边界，相邻幅保持既定重叠与同一方向，连接处不漏段或重复拼路。

Present the supplied elongated study area in approved sheets, showing every sheet extent on an index map and retaining overlap and orientation without gaps or duplicate road segments at joins.