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Tolopoly Builder wont break polygon


jugoslaviaa
Enthusiast
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I have two polygon datastets and i send them to the Topology Builder so that they will get break at the intersection. However it does not give the result I expected. My expectation would be a similar result to thearea on area overlay 
 

my output looks. The overlapping area are not broken. Any idea what i may have been doing wrong

 

Best answer by redgeographics

Try the AreaOnAreaOverlayer instead, that should break up overlapping polygons.

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4 replies

redgeographics
Celebrity
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  • Best Answer
  • April 30, 2024

Try the AreaOnAreaOverlayer instead, that should break up overlapping polygons.


jugoslaviaa
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  • May 5, 2024

I know that areaonareaoverlay gives the result I expect as I have written in the question. I wanted to know why the topology builder doesn't  do.


danilo_fme
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  • May 5, 2024
jugoslaviaa wrote:

I know that areaonareaoverlay gives the result I expect as I have written in the question. I wanted to know why the topology builder doesn't  do.

Hi, Please - could you share us the dataset for test?


joepk
Influencer
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  • Influencer
  • May 6, 2024
jugoslaviaa wrote:

I know that areaonareaoverlay gives the result I expect as I have written in the question. I wanted to know why the topology builder doesn't  do.

Simply put: because it is a different transformer. The TopologyBuilder computes topological relationships between input features and outputs those topological relationships. The AreaOnAreaOverlayer simply intersects the input features and outputs the geometrical result. 

 


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