Finding isolated edges

Im not sure if i understand the question but is it not just a tester to test for the value?

 

 

Or are ther more criteria that identifies it as "isolated"?

 

 

To me, an isolated edge would be an edge that does not share a (partial)boundary with another object.

 

In that case u can use  a spatialrelator to find them  with a list. The list will have only one (ID) entry for that object.

Hi Gio,

 

 

Yes, sorry for the lack of clarity. I think I just missed a section a typed for the question. A more accurate description would be all scenarios where an edge with attribute "Y" either connects to nothing, or only connects to edges with attribute “X”.

 

 

 

That’s what I mean with isolated, in the sense that it’s not part of a network of “Y” attribute edges, but instead a loose segement that either connects to only “X” attribute edges, or nothing at all.

 

 

Hope that makes more sense, and sorry for the original post's limited information.

 

 

Hi

 

 

Have at look at the TopologyBuilder and/or the NetworkTopologyCalculator (check for _network_id), in particular using the Group By clause on your attribute.

 

 

David

using a spatiarelator with intersect criteria and a _list seems sufficient.

 

Test for attribute = Y.

 

On the Passed port check the list if it there is any Y in it, for instance with a ListSearcher. Notfound port will yield your result.

 

 

 

Hi Robbie,

 

 

I think it's enough that you think of Y edges only. For example:

 

Send all the Y edges to a NetworkTopoloyCalculator and connect a Mathcer with this parameter setting.

 

- Match Geometry: NONE

 

- Attribute Matching Strategy: Match Selected Attributes

 

- Selected Attributes: _network_id

 

The "isolated" edges will be output from the NotMatched port.

 

 

Takashi