[geos-commits] [SCM] GEOS branch main updated. 36d2dcfdea9cf2738dc5a233ee917417511e7945

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- Log -----------------------------------------------------------------
commit 36d2dcfdea9cf2738dc5a233ee917417511e7945
Author: Daniel Baston <dbaston at gmail.com>
Date:   Tue Jan 13 16:56:28 2026 -0500

    OverlayEdgeRing: Preserve M values when closing ring (#1372)
    
    Resolves https://github.com/libgeos/geos/issues/1365

diff --git a/src/operation/overlayng/OverlayEdgeRing.cpp b/src/operation/overlayng/OverlayEdgeRing.cpp
index b9ac01518..1587f9e0c 100644
--- a/src/operation/overlayng/OverlayEdgeRing.cpp
+++ b/src/operation/overlayng/OverlayEdgeRing.cpp
@@ -128,7 +128,7 @@ void
 OverlayEdgeRing::closeRing(CoordinateSequence& pts)
 {
     if(pts.size() > 0) {
-        pts.add(pts.getAt(0), false);
+        pts.closeRing(false);
     }
 }
 
diff --git a/tests/unit/capi/GEOSGeom_setPrecisionTest.cpp b/tests/unit/capi/GEOSGeom_setPrecisionTest.cpp
index 4640b19e7..4c604a183 100644
--- a/tests/unit/capi/GEOSGeom_setPrecisionTest.cpp
+++ b/tests/unit/capi/GEOSGeom_setPrecisionTest.cpp
@@ -326,5 +326,20 @@ void object::test<23>()
     checkPrecision(wkt,  100000, "LINESTRING ( 700000 200000,  700000 1400000)");
 }
 
+template<>
+template<>
+void object::test<24>()
+{
+    // https://github.com/libgeos/geos/issues/1365{
+    set_test_name("M value retained on last point");
+
+    input_ = fromWKT("POLYGON ZM ((0 0 0 0, 0 1 1 1, 1 1 2 3, 1 0 4 5, 0 0 6 7))");
+    expected_ = fromWKT("POLYGON ZM ((0 1 1 1, 1 1 2 3, 1 0 4 5, 0 0 6 7, 0 1 1 1))");
+
+    result_ = GEOSGeom_setPrecision(input_, 0.1, 0);
+
+    ensure(GEOSEqualsIdentical(result_, expected_));
+}
+
 } // namespace tut
 

-----------------------------------------------------------------------

Summary of changes:
 src/operation/overlayng/OverlayEdgeRing.cpp   |  2 +-
 tests/unit/capi/GEOSGeom_setPrecisionTest.cpp | 15 +++++++++++++++
 2 files changed, 16 insertions(+), 1 deletion(-)


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