Many adjacent polygons, want to convert polygons to paths and remove resultant duplicate paths
问题 I have a json file with 80ish adjacent counties, represented as individual polygons. Each county, as expected, shares borders with other counties. I'd like to convert each of those polygons to paths, creating paths symbolizing the borders of every county. At this point, I'd be left with many overlapping or duplicate paths where counties shared borders. I'd like to find a systematic way to delete these overlapping paths so each line representing a border is only displayed once. By doing so, I