Dangle line

HY

I tried but no succes

thx

Francesco

I use a topologyBuilder, test the Nodes for those that only have one element in the _node_angle{} list, and then FeatureMerger with the Edges based on the absolute value of the fme_arc_id (node) and the _edge_id (edge). Those that have a match are dangle, those that have multiple matches are isolated.

Hi @frsisani, you will have to create a custom transformer to perform the process for removing dangles recursively. I posted a solution before: Looping According to Spatial Data

And this is a new version which implements your approach. The FeatureMerger routes the lines (Requestor) to the "Loop to Input port" if a dangle node (Supplier) exists, to the Output port (i.e. finishes the looping) otherwise

See these links to learn more about how to create a custom transformer for looping.

• Creating a Custom Transformer
• Looping Custom Transformers
• Looping with a Blocking Transformer

Hy Takashi

Thx for your help

I tried to understand the "logic" of loop probably I'm very close to the solution but... not completely.

Attached my WB can you please have a look ?

Thx

Francesco

false-geo.zip

Please read carefully the documentations I linked in the previous post. Especially this one is important:

 

Looping with a Blocking Transformer

 

Since the looping process contains some blocking transformers (Matcher, SpatialFilter, FeatureMerger [Edited] Sampler is not a blocking transformer), you will have to export the custom transformer (Insert Mode: Linked Always), make sure some parameters to enable loop with blocking transformer, and then use it in the main workspace as a linked custom transformer.

 

I tested your custom transformer after exporting, and it seems to work as expected.