Is it possible to program a function which can extract point data from plot? In my case, I have 2D coordinates data point(over 300k) that come from road network. Based on original information, I only have easting and northing for each point. When they are plotted in figure, the approximate road network geometry can be shown. is there any suggestion how to identify which point data are belong to same road?
for instance, all points belong to the same road will be assigned a value (1 to n)
at the end, those values will be added into orignal data table as third column.