标签：TopologyException java jts 问题 locationtech OverlayOp JTS org operation
计算2个几何相交结果时候，报错了：
val geometry = polygon.intersection(lineString)
日志如下
org.locationtech.jts.geom.TopologyException: found non-noded intersection between LINESTRING ( 1.352237191719381E7 3623890.160213779, 1.3522371711949987E7 3623889.580561515 ) and LINESTRING ( 1.3522371378318693E7 3623889.936883858, 1.3522376536017932E7 3623888.3707740055 ) [ (1.3522371793480815E7, 3623889.810821934, 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.Geometry.intersection(Geometry.java:1354)
......
原因是： polygon （或者 lineString 【另一个图形】）有自相交的情况， 即 invalid
解决办法
if (!poly.isValid) {
poly.buffer(0.1)
}
标签：TopologyException,
java,
jts,
问题,
locationtech,
OverlayOp,
JTS,
org,
operation
From： https://www.cnblogs.com/gradyblog/p/16627857.html