Q: When you drag a map to browse and export the edge part of the graph, there is always a process of map matching. The user experience is not good, and is there any good solution?

A: Exporting map is requested from the current view scope, and you can set the buffer attribute to the base map. The type is number. When it set to 1, an additional round of tiles can be requested to enhance the user experience. However, when the buffer value is set too large, it causes too many requests, resulting in iServer concurrency pressure. So it is necessary to set the appropriate value according to its own server performance.