kinematosis opened a new issue, #2396: URL: https://github.com/apache/sedona/issues/2396
I am trying to cut a circular buffer in half, using a LineString as the blade, with the `ST_Split` function. It is not working, because `GeometrySplitter.split` is returning an empty geometry. In the example below, JTS's Polygonizer considers the blade to be dangling, so this seems to be caused by the way the polygon shell and blade are noded. Is this intended behavior? [The documentation for `ST_Split`](https://sedona.apache.org/latest/api/sql/Function/#st_split) doesn't say anything about this. This is happening in Sedona versions 1.7.2 and 1.8.0. Here is one geometry I'm seeing this happen with, and a small fragment of code to reproduce it (apologies for the long WKT string): <img width="412" height="444" alt="Image" src="https://github.com/user-attachments/assets/27899269-554c-49d4-b051-08c3037e3e76"; /> ```java WKTReader reader = new WKTReader(); Geometry geom = reader.read("POLYGON ((-117.76405581088967 34.111876749328026, -117.76407506132291 34.11170068822483, " + "-117.76413523652074 34.111531133837936, -117.76423402376724 34.11137460199335, -117.76436762657538 34.11123710803779, " + "-117.76453091060647 34.11112393568514, -117.76471760098879 34.11103943398174, -117.76492052345083 34.11098685019075, " + "-117.76513188000408 34.1109682050154, -117.76534354858369 34.11098421495394, -117.76554739513688 34.11103426476887, " + "-117.76573558617179 34.11111643112786, -117.76590088976099 34.111227556508084, -117.76603695343799 34.11136337052523, " + "-117.76613854831002 34.11151865402651, -117.76620177000793 34.11168743964393, -117.76622418874936 34.111863241103265, " + "-117.76620494274577 34.11203930247842, -117.76614477135817 34.11220885781403, -117.7660459867224 34.11236539113964, " + "-117.76591238492807 34.11250288688306, -117.7657491001595 34.11261606105824, -117.7655624074007 34.11270056434135, " + "-117.76535948128496 34.112753149228745, -117.76514812035703 34.11277179485027, -117.76493644734776 34.112755784639766, " + "-117.76473259698435 34.112705733876126, -117.76454440333869 34.11262356603611, -117.76437909873567 34.11251243886801, " + "-117.76424303579616 34.11237662302835, -117.76414144330062 34.112221337947354, -117.76407822525644 34.11205255123353, " + "-117.76405581088967 34.111876749328026))"); Geometry blade = reader.read("LINESTRING (-117.7640751398563 34.111535124121441, -117.76628486838135 34.112204866513046)"); GeometrySplitter splitter = new GeometrySplitter(new GeometryFactory()); GeometryCollection result = splitter.split(geom, blade); int splits = result.getNumGeometries(); System.out.println(splits); //Prints 0 ``` -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
