[geos-commits] [SCM] GEOS branch main updated. b896045021458077ae4c10e831b5d2461f54d3cc

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- Log -----------------------------------------------------------------
commit b896045021458077ae4c10e831b5d2461f54d3cc
Author: Daniel Baston <dbaston at gmail.com>
Date:   Sat Mar 7 20:09:09 2026 -0500

    CircularString::getArcs: avoid underflow on empty CircularString

diff --git a/src/geom/CircularString.cpp b/src/geom/CircularString.cpp
index ac5311905..ebfdd765b 100644
--- a/src/geom/CircularString.cpp
+++ b/src/geom/CircularString.cpp
@@ -49,6 +49,10 @@ CircularString::clone() const
 void
 CircularString::createArcs() const
 {
+    if (points->getSize() < 3) {
+        return;
+    }
+
     for (std::size_t i = 0; i < points->getSize() - 2; i += 2) {
         arcs.emplace_back(*points, i);
     }
diff --git a/tests/unit/geom/CircularStringTest.cpp b/tests/unit/geom/CircularStringTest.cpp
index a4a9a9d14..045c61739 100644
--- a/tests/unit/geom/CircularStringTest.cpp
+++ b/tests/unit/geom/CircularStringTest.cpp
@@ -199,4 +199,16 @@ void object::test<5>()
     ensure_THROW(factory_->createCircularString(pts), geos::util::GEOSException);
 }
 
+template<>
+template<>
+void object::test<6>()
+{
+    set_test_name("getArcs on empty CircularString");
+
+    auto geom = factory_->createEmpty(geos::geom::GEOS_CIRCULARSTRING);
+
+    const auto& arcs = static_cast<const CircularString*>(geom.get())->getArcs();
+    ensure(arcs.empty());
+}
+
 }

commit e49be080abdc2ad8a9ce3abcede99a272207f22d
Author: Daniel Baston <dbaston at gmail.com>
Date:   Tue Dec 23 10:50:00 2025 -0500

    CoordinateSequence: Add comments

diff --git a/include/geos/geom/CoordinateSequence.h b/include/geos/geom/CoordinateSequence.h
index 249e9ddd7..c284b9bc2 100644
--- a/include/geos/geom/CoordinateSequence.h
+++ b/include/geos/geom/CoordinateSequence.h
@@ -579,8 +579,10 @@ public:
 
     void add(const CoordinateSequence& cl, bool allowRepeated, bool forwardDirection);
 
+    /// Add the portion of a CoordinateSequence between the specified indices (inclusive)
     void add(const CoordinateSequence& cs, std::size_t from, std::size_t to);
 
+    /// Add the portion of a CoordinateSequence between the specified indices (inclusive)
     void add(const CoordinateSequence& cs, std::size_t from, std::size_t to, bool allowRepeated);
 
     template<typename T, typename... Args>

commit 407e7f47888f91d386d3a42c18014bd524e13a94
Author: Daniel Baston <dbaston at gmail.com>
Date:   Mon Dec 22 14:34:29 2025 -0500

    Add test for CurvePolygon area

diff --git a/tests/unit/geom/CurvePolygonTest.cpp b/tests/unit/geom/CurvePolygonTest.cpp
index 0ee7d4baa..774a8bb32 100644
--- a/tests/unit/geom/CurvePolygonTest.cpp
+++ b/tests/unit/geom/CurvePolygonTest.cpp
@@ -9,6 +9,7 @@
 #include <geos/io/WKTReader.h>
 
 using geos::geom::CoordinateXY;
+using geos::geom::CurvePolygon;
 
 namespace tut {
 
@@ -183,4 +184,18 @@ void object::test<3>()
     ensure_THROW(cc3->normalize(), geos::util::UnsupportedOperationException);
 }
 
+template<>
+template<>
+void object::test<4>()
+{
+    set_test_name("getArea");
+
+    // SELECT ST_Area(ST_CurveToLine('CURVEPOLYGON (CIRCULARSTRING(0 0,0 2,1 2,1 1,2 1,3 0,0 0))', 36000));
+    auto cp = wktreader_.read<CurvePolygon>("CURVEPOLYGON (CIRCULARSTRING(0 0,0 2,1 2,1 1,2 1,3 0,0 0))");
+    ensure_equals("cp->getArea()", cp->getArea(), 9.8185835, 1e-6);
+
+    auto cpRev = cp->reverse();
+    ensure_equals("cpRev->getArea()", cpRev->getArea(), 9.8185835, 1e-6);
+}
+
 }

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

Summary of changes:
 include/geos/geom/CoordinateSequence.h |  2 ++
 src/geom/CircularString.cpp            |  4 ++++
 tests/unit/geom/CircularStringTest.cpp | 12 ++++++++++++
 tests/unit/geom/CurvePolygonTest.cpp   | 15 +++++++++++++++
 4 files changed, 33 insertions(+)


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