Re: [JPP-Devel] How to avoid non-noded intersection error in Overlay?

[Michaud Michael]

Jukka, I could successfully run overlay, but not polygon overlay. I think there maybe a solution with JTS snaprounding code, but there is no easyway to use it from OpenJUMP (to my knowledge, node-lines is the only plugin to use a snap-rounding approach, but for a reason, I could not use it with a very fine-grain precision on your data). Let me some time to explore as your dataset is quite big. Michaël  envoyé : 19 mai 2021 à 00:37 de : Stefan Steiniger via Jump-pilot-devel <jump-pilot-devel@lists.sourceforge.net> à : OpenJump develop and use <jump-pilot-devel@lists.sourceforge.net> cc : Stefan Steiniger <ssteini...@uc.cl> objet : Re: [JPP-Devel] How to avoid non-noded intersection error in Overlay? Hi Jukka, I guess the lines are almost parallel of you zoom in : or parallel for the observer - but indeed are not. They could also be a duplicate. So, the option would be to change precision of evaluation, I believe or delete one or separate them? At least manual intervention seems necessary. Perhaps not so useful but usually this was the case in the past :) Cheers, Stefan On Tue., May 18, 2021, 13:13 Rahkonen Jukka (MML), <jukka.rahko...@maanmittauslaitos.fi> wrote: Hi,   I tried to run the Overlay function for this heavy dataset https://we.tl/t-gshlI4TbCU Both layers seem to have no topology errors but the Overlay function fails with an error   org.locationtech.jts.geom.TopologyException: found non-noded intersection between LINESTRING ( 95.49610823093388 4.949137070569244, 95.49623518653348 4.948912456969601 ) and LINESTRING ( 95.4962351860291 4.948912457861983, 95.49623518653348 4.948912456969593 ) [ (95.49623518627793, 4.948912457421728, NaN) ]                           at org.locationtech.jts.noding.FastNodingValidator.checkValid(FastNodingValidator.java:140)                           at org.locationtech.jts.geomgraph.EdgeNodingValidator.checkValid(EdgeNodingValidator.java:81)                           at org.locationtech.jts.geomgraph.EdgeNodingValidator.checkValid(EdgeNodingValidator.java:46)                           at org.locationtech.jts.operation.overlay.OverlayOp.computeOverlay(OverlayOp.java:231)                           at org.locationtech.jts.operation.overlay.OverlayOp.getResultGeometry(OverlayOp.java:183)                           at org.locationtech.jts.operation.overlay.OverlayOp.overlayOp(OverlayOp.java:86)                           at org.locationtech.jts.operation.overlay.snap.SnapIfNeededOverlayOp.getResultGeometry(SnapIfNeededOverlayOp.java:75)                           at org.locationtech.jts.operation.overlay.snap.SnapIfNeededOverlayOp.overlayOp(SnapIfNeededOverlayOp.java:37)                           at org.locationtech.jts.geom.GeometryOverlay.overlay(GeometryOverlay.java:76)                           at org.locationtech.jts.geom.GeometryOverlay.union(GeometryOverlay.java:157)                           at org.locationtech.jts.geom.Geometry.union(Geometry.java:1367)                           at org.openjump.core.geomutils.algorithm.IntersectGeometries.nodeLines(IntersectGeometries.java:478)                           at org.openjump.core.ui.plugin.tools.IntersectPolygonLayersPlugIn.runIntersectionNew(IntersectPolygonLayersPlugIn.java:205)                           at org.openjump.core.ui.plugin.tools.IntersectPolygonLayersPlugIn.run(IntersectPolygonLayersPlugIn.java:127)                           at com.vividsolutions.jump.workbench.ui.task.TaskMonitorManager$TaskWrapper.run(TaskMonitorManager.java:151)   What does this error mean, in which part of the operation it happens, and is there any way to get over it? I also tried a GDAL/GEOS based utility but it fails with similar error “TopologyException: found non-noded intersection between LINESTRING (104.098 0.627591, 104.098 0.627447) and LINESTRING (104.098 0.627484, 104.098 0.627447) at 104.09781931770398 0.62748351910904443".   -Jukka Rahkonen-             _______________________________________________ Jump-pilot-devel mailing list Jump-pilot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel _______________________________________________ Jump-pilot-devel mailing list Jump-pilot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel

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