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UID:pretalx-foss4g-2026-UV7LF7@talks.osgeo.org
DTSTART;TZID=JST:20260902T163000
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DESCRIPTION:What actually constitutes a valid polygon is a question that va
 rious stakeholders have very different views on – and even open-source l
 ibraries like GEOS and S2 are far from a consensus. This talk explores pra
 ctical problems at the crossroads of coffee industry\, geodata\, and EU re
 gulation.
DTSTAMP:20260604T205214Z
LOCATION:Conference Management Room2
SUMMARY:Between coffee farmers and an EU portal: When is a polygon actually
  valid? - Christoph Friedrich
URL:https://talks.osgeo.org/foss4g-2026/talk/UV7LF7/
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