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I am stuck with a problem related to FME and hope you can help me sort it out.

Background: I am working with a Feature Class which consists of digitized polygons from different sources. Due to that many of these polygons exist more than one time.

Problem: I want to get rid of the older ones (they all come with a date) and keep only the latest polygon.

My solution: I applied the Spatial Relator, than added a ListSorter in order to sort by incoming date. A Tester, which comes right behind, tests if the incoming date is newer than this of the related canidates. enter image description here

The output: The derived Feature Class contains ALL polygons and not only the latest one. enter image description here

Thanks!

chajamalka
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2 Answers2

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If by latest you want only that day's polygon then I would suggest using a TestFilter that tests the date attribute to whatever you want to pass.

e.g. [LEFT ATTRIBUTE] LIKE [VALUE OF RIGHT ATTRIBUTE]

spatial_in_nz
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Use a Matcher on the feature class. On the Matched port, sort descending by date using a Sorter. Then use a Sampler to Sample 1 of "first N features".

Geo
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