diff --git a/src/DotRecast.Detour/DtNavMeshQuery.cs b/src/DotRecast.Detour/DtNavMeshQuery.cs
index c6ab7c0..9f3f9d7 100644
--- a/src/DotRecast.Detour/DtNavMeshQuery.cs
+++ b/src/DotRecast.Detour/DtNavMeshQuery.cs
@@ -202,7 +202,7 @@ namespace DotRecast.Detour
         public DtStatus FindRandomPointAroundCircle(long startRef, RcVec3f centerPos, float maxRadius,
             IDtQueryFilter filter, IRcRand frand, out long randomRef, out RcVec3f randomPt)
         {
-            return FindRandomPointAroundCircle(startRef, centerPos, maxRadius, filter, frand, NoOpPolygonByCircleConstraint.Noop, out randomRef, out randomPt);
+            return FindRandomPointAroundCircle(startRef, centerPos, maxRadius, filter, frand, DtNoOpDtPolygonByCircleConstraint.Noop, out randomRef, out randomPt);
         }
 
         /**
@@ -223,11 +223,11 @@ namespace DotRecast.Detour
         public DtStatus FindRandomPointWithinCircle(long startRef, RcVec3f centerPos, float maxRadius,
             IDtQueryFilter filter, IRcRand frand, out long randomRef, out RcVec3f randomPt)
         {
-            return FindRandomPointAroundCircle(startRef, centerPos, maxRadius, filter, frand, StrictPolygonByCircleConstraint.Strict, out randomRef, out randomPt);
+            return FindRandomPointAroundCircle(startRef, centerPos, maxRadius, filter, frand, DtStrictDtPolygonByCircleConstraint.Strict, out randomRef, out randomPt);
         }
 
         public DtStatus FindRandomPointAroundCircle(long startRef, RcVec3f centerPos, float maxRadius,
-            IDtQueryFilter filter, IRcRand frand, IPolygonByCircleConstraint constraint,
+            IDtQueryFilter filter, IRcRand frand, IDtPolygonByCircleConstraint constraint,
             out long randomRef, out RcVec3f randomPt)
         {
             randomRef = startRef;
diff --git a/src/DotRecast.Detour/DtNoOpDtPolygonByCircleConstraint.cs b/src/DotRecast.Detour/DtNoOpDtPolygonByCircleConstraint.cs
new file mode 100644
index 0000000..b938dc1
--- /dev/null
+++ b/src/DotRecast.Detour/DtNoOpDtPolygonByCircleConstraint.cs
@@ -0,0 +1,18 @@
+using DotRecast.Core;
+
+namespace DotRecast.Detour
+{
+    public class DtNoOpDtPolygonByCircleConstraint : IDtPolygonByCircleConstraint
+    {
+        public static readonly DtNoOpDtPolygonByCircleConstraint Noop = new DtNoOpDtPolygonByCircleConstraint();
+
+        private DtNoOpDtPolygonByCircleConstraint()
+        {
+        }
+
+        public float[] Apply(float[] polyVerts, RcVec3f circleCenter, float radius)
+        {
+            return polyVerts;
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/DotRecast.Detour/StrictPolygonByCircleConstraint.cs b/src/DotRecast.Detour/DtStrictDtPolygonByCircleConstraint.cs
similarity index 89%
rename from src/DotRecast.Detour/StrictPolygonByCircleConstraint.cs
rename to src/DotRecast.Detour/DtStrictDtPolygonByCircleConstraint.cs
index 59de356..86ae5be 100644
--- a/src/DotRecast.Detour/StrictPolygonByCircleConstraint.cs
+++ b/src/DotRecast.Detour/DtStrictDtPolygonByCircleConstraint.cs
@@ -6,14 +6,14 @@ namespace DotRecast.Detour
     /**
      * Calculate the intersection between a polygon and a circle. A dodecagon is used as an approximation of the circle.
      */
-    public class StrictPolygonByCircleConstraint : IPolygonByCircleConstraint
+    public class DtStrictDtPolygonByCircleConstraint : IDtPolygonByCircleConstraint
     {
         private const int CIRCLE_SEGMENTS = 12;
         private static readonly float[] UnitCircle = MakeUnitCircle();
 
-        public static readonly IPolygonByCircleConstraint Strict = new StrictPolygonByCircleConstraint();
+        public static readonly IDtPolygonByCircleConstraint Strict = new DtStrictDtPolygonByCircleConstraint();
 
-        private StrictPolygonByCircleConstraint()
+        private DtStrictDtPolygonByCircleConstraint()
         {
         }
 
diff --git a/src/DotRecast.Detour/IPolygonByCircleConstraint.cs b/src/DotRecast.Detour/IDtPolygonByCircleConstraint.cs
similarity index 95%
rename from src/DotRecast.Detour/IPolygonByCircleConstraint.cs
rename to src/DotRecast.Detour/IDtPolygonByCircleConstraint.cs
index 4855429..e50ecf5 100644
--- a/src/DotRecast.Detour/IPolygonByCircleConstraint.cs
+++ b/src/DotRecast.Detour/IDtPolygonByCircleConstraint.cs
@@ -21,7 +21,7 @@ using DotRecast.Core;
 
 namespace DotRecast.Detour
 {
-    public interface IPolygonByCircleConstraint
+    public interface IDtPolygonByCircleConstraint
     {
         float[] Apply(float[] polyVerts, RcVec3f circleCenter, float radius);
     }
diff --git a/src/DotRecast.Detour/NoOpPolygonByCircleConstraint.cs b/src/DotRecast.Detour/NoOpPolygonByCircleConstraint.cs
deleted file mode 100644
index 2238024..0000000
--- a/src/DotRecast.Detour/NoOpPolygonByCircleConstraint.cs
+++ /dev/null
@@ -1,18 +0,0 @@
-using DotRecast.Core;
-
-namespace DotRecast.Detour
-{
-    public class NoOpPolygonByCircleConstraint : IPolygonByCircleConstraint
-    {
-        public static readonly NoOpPolygonByCircleConstraint Noop = new NoOpPolygonByCircleConstraint();
-
-        private NoOpPolygonByCircleConstraint()
-        {
-        }
-
-        public float[] Apply(float[] polyVerts, RcVec3f circleCenter, float radius)
-        {
-            return polyVerts;
-        }
-    }
-}
\ No newline at end of file
diff --git a/src/DotRecast.Recast.DemoTool/Tools/TestNavmeshToolImpl.cs b/src/DotRecast.Recast.DemoTool/Tools/TestNavmeshToolImpl.cs
index 19da000..6d7187a 100644
--- a/src/DotRecast.Recast.DemoTool/Tools/TestNavmeshToolImpl.cs
+++ b/src/DotRecast.Recast.DemoTool/Tools/TestNavmeshToolImpl.cs
@@ -297,9 +297,9 @@ namespace DotRecast.Recast.DemoTool.Tools
             float dz = epos.z - spos.z;
             float dist = (float)Math.Sqrt(dx * dx + dz * dz);
 
-            IPolygonByCircleConstraint constraint = constrainByCircle
-                ? StrictPolygonByCircleConstraint.Strict
-                : NoOpPolygonByCircleConstraint.Noop;
+            IDtPolygonByCircleConstraint constraint = constrainByCircle
+                ? DtStrictDtPolygonByCircleConstraint.Strict
+                : DtNoOpDtPolygonByCircleConstraint.Noop;
 
             var frand = new FRand();
             var navQuery = _sample.GetNavMeshQuery();
diff --git a/test/DotRecast.Detour.Test/PolygonByCircleConstraintTest.cs b/test/DotRecast.Detour.Test/PolygonByCircleConstraintTest.cs
index df356ac..a968e65 100644
--- a/test/DotRecast.Detour.Test/PolygonByCircleConstraintTest.cs
+++ b/test/DotRecast.Detour.Test/PolygonByCircleConstraintTest.cs
@@ -24,7 +24,7 @@ namespace DotRecast.Detour.Test;
 [Parallelizable]
 public class PolygonByCircleConstraintTest
 {
-    private readonly IPolygonByCircleConstraint _constraint = StrictPolygonByCircleConstraint.Strict;
+    private readonly IDtPolygonByCircleConstraint _constraint = DtStrictDtPolygonByCircleConstraint.Strict;
 
     [Test]
     public void ShouldHandlePolygonFullyInsideCircle()