Skip to main content
  • EN

Hello everyone,

I have a street centerline dataset and I would like to identifying where there are T intersection (3 centerlines intersect at same point). Here is the image and I would like to find the highlighted lines.

Thanks in advance.

Best,

Hi

Please, try to create a point geometry in all Intersection lines - transformer Intersection and after to find relationship between points with 3 lines connected

 

Thanks

Danilo

Hi @jugoslaviaa,

You can use the TopologyBuilder transformer to create nodes at the intersections. The output nodes will have a list on them with id of the adjoining line and its bearing from the node. The ListElementCounter and a Tester can be used to find the nodes with three lines radiating from them.

Hi

Please, try to create a point geometry in all Intersection lines - transformer Intersection and after to find relationship between points with 3 lines connected

 

Thanks

Danilo

Hi @jugoslaviaa

Just for complement my answer - inside the transformer Intersector there is the option Generate List, please check this option and create a List of elements:

And after this transformer - you can use the transformer ListElementCounter ( like suggest you @daveatsafe ) then the transformer Tester to filter the number of elements that you want = 3.

 

Thanks,

Danilo

Community Stats

31,951
Posts
121,337
Replies
39,562
Members

Latest FME

Terms & ConditionsCookie settingsAccessibility statement
A product of
Safe Software respectfully acknowledges that we live, learn and work on the traditional and unceded territories of the Kwantlen, Katzie, and Semiahmoo First Nations.