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.

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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.

 

 

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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

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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.

 

 

 

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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

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