Skip to main content
Solved

PointOnAreaOverlayer not producing expected results

scarter
Contributor
Forum|alt.badge.img+9

Hello Forum,

I am experiencing an unexpected problem with what should be a simple point in polygon search process in FME Form.

 

I have a Creator connecting to…

FeatureReader -  reading in a point dataset of 16255 records

FeatureReader - reading in a polygon dataset, which covers a smaller area of what the points do

 

 

The two FeatureReaders feed into a PointOnAreaOverlayer.

 

But when I run the workspace 16255 point records are found. The number should be far smaller.

 

Thanks.

 

Best answer by DanAtSafe

Hi ​@scarter All points will pass through the PointOnAreaOverlayer.  Maybe you want to use a SpatialFilter?  Both transformers are similar.  With the PointOnAreaOverlayer, check the value of “_overlaps” and then filter on that with a Tester.

View original
    rylanatsafe
    siennaatsafe
    erik_jan
    12 people upvoted this
    • rylanatsafe
      rylanatsafe
    • siennaatsafe
      siennaatsafe
    • erik_jan
      erik_jan
    • lifalin2016
      lifalin2016
    • stalknecht
      stalknecht
    • courtney_m
      courtney_m
    • T
      tara
    • cwarren
      cwarren
    • jvanravenswaaij
      jvanravenswaaij
    • tino
      tino
    • C
      conterraclara
    • J
      jaygis
    Did this help you find an answer to your question?

    2 replies

    DanAtSafe
    Safer
    Forum|alt.badge.img+18
    • DanAtSafeSafer
    • Safer
    • Best Answer
    • March 28, 2025

    Hi ​@scarter All points will pass through the PointOnAreaOverlayer.  Maybe you want to use a SpatialFilter?  Both transformers are similar.  With the PointOnAreaOverlayer, check the value of “_overlaps” and then filter on that with a Tester.

    nielsgerrits
    1 person upvoted this
    • nielsgerrits
      nielsgerrits
    scarter
    Contributor
    Forum|alt.badge.img+9
    • scarterContributor
    • Author
    • Contributor
    • March 28, 2025

    Thanks for that, ​@DanAtSafe . Yes, the SpatialFilter done the job. It’s clearly more straight forward for point in polygon queries.

     

    Noted on the need for _overlaps tester when using the PointOnAreaOverlayer.

     

    Thanks again.

     

     

    Reply


    Helpful Members This Week

    Community Stats

    30,990
    Posts
    117,465
    Replies
    38,773
    Members

    Latest FME

    Terms & ConditionsCookie settings

    Cookie policy

    We use cookies to enhance and personalize your experience. If you accept you agree to our full cookie policy. Learn more about our cookies.

     
    Cookie settings
    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.