Attribute Rule that allows a Spatial Join on Line Ending ONLY

CHedger1227

Hello,

I am looking for a very specific Attribute rule to be set up. I am not sure how this would be even set up. I am looking to create an Attribute Rule that will populate a GlobalID from one feature to another based on where the end of the line feature are snapped to one another. This is all taking place in the same feature class. Most of the lines are drawn in the same direction and I am looking to have it ONLY where the ENDS of the line are snapped to one another and then populate the linking GlobalID field on the other feature class. It has to be on the end only because the GlobalID's can only be in a certain direction.

Example 

Start of line: O

End of Line: X

O--------Line-1--------X----Line-2-----------O----------Line-3---------X

I am looking for where Line 1 and Line 2 meet NOT line 2 and Line 3

If you need further information please say so.

Thank you in advanced. 

JohannesLindner

Something like this?

// load the line fc
var lines = FeatureSetByName($datastore, "NameOfLineFC", ["GlobalID"], true)
// intersect with current line
var intersecting_lines = Intersects($feature, lines)
// we intersected $feature with itself, so we need to filter it out
var f_gid = $feature.GlobalID
intersecting_lines = Filter(intersecting_lines, "GlobalID <> @f_gid")

// loop through all intersecting lines
// return the GlobalID of the first line where the end point is the same as $feature's end point
var feature_end = Geometry($feature).paths[0][-1]
for(var line in intersecting_lines) {
  var line_end = Geometry(line).paths[0][-1]
  if(Intersects(feature_end, line_end)) {
    return line.GlobalID
  }
}
// if we land here, there is no line with intersecting end point
return null