diff --git a/src/PathPlanning/ChannelBasedGridBuilder.cs b/src/PathPlanning/ChannelBasedGridBuilder.cs
index 8c5d876..d31f6ef 100644
--- a/src/PathPlanning/ChannelBasedGridBuilder.cs
+++ b/src/PathPlanning/ChannelBasedGridBuilder.cs
@@ -188,7 +188,7 @@ namespace NavisworksTransport.PathPlanning
             double channelSpeedLimit = CategoryAttributeManager.GetSpeedLimit(channel);
 
             // 提取三角形几何
-            var triangles = GeometryHelper.ExtractTriangles(channel);
+            var triangles = GeometryHelper.ExtractTriangles(new[] { channel });
             if (triangles.Count == 0)
             {
                 LogManager.Warning($"[通道网格构建器] 未能从 '{channel.DisplayName}' 提取到三角形");
diff --git a/src/PathPlanning/ChannelHeightDetector.cs b/src/PathPlanning/ChannelHeightDetector.cs
index 4cc5c20..44a79b6 100644
--- a/src/PathPlanning/ChannelHeightDetector.cs
+++ b/src/PathPlanning/ChannelHeightDetector.cs
@@ -620,7 +620,7 @@ namespace NavisworksTransport.PathPlanning
                             screenPoint.Y >= 0 && screenPoint.Y < activeView.Height)
                         {
                             // 使用PickItemFromPoint获取该屏幕位置的实际表面点
-                            var pickResult = activeView.PickItemFromPoint((int)screenPoint.X, (int)screenPoint.Y);
+                            var pickResult = activeView.PickItemFromPoint(screenPoint.X, screenPoint.Y);
                             if (pickResult != null && (pickResult.ModelItem.Equals(channel) || ModelItemAnalysisHelper.IsChildOf(pickResult.ModelItem, channel)))
                             {
                                 LogManager.Info($"[射线投射] ✅ 成功检测到表面点: Z={pickResult.Point.Z:F2}");
@@ -653,9 +653,9 @@ namespace NavisworksTransport.PathPlanning
             try
             {
                 LogManager.Info($"[COM几何射线] 开始从ModelItem提取三角形几何数据: {channel.DisplayName}");
-                
+
                 // 使用COM API提取三角形几何数据
-                var triangles = GeometryHelper.ExtractTriangles(channel);
+                var triangles = GeometryHelper.ExtractTriangles(new[] { channel });
                 if (triangles.Count == 0)
                 {
                     LogManager.Warning($"[COM几何射线] 未能从ModelItem提取到三角形数据: {channel.DisplayName}");
diff --git a/src/PathPlanning/MeshSDFTester.cs b/src/PathPlanning/MeshSDFTester.cs
index eeb22cd..601b098 100644
--- a/src/PathPlanning/MeshSDFTester.cs
+++ b/src/PathPlanning/MeshSDFTester.cs
@@ -265,7 +265,7 @@ namespace NavisworksTransport.PathPlanning
             {
                 // 步骤 1：提取三角形
                 LogManager.Info("[步骤 1/3] 提取三角形网格...");
-                var triangles = GeometryHelper.ExtractTriangles(modelItem);
+                var triangles = GeometryHelper.ExtractTriangles(new[] { modelItem });
 
                 if (triangles.Count == 0)
                 {
diff --git a/src/Utils/NavisworksToDMesh3Converter.cs b/src/Utils/NavisworksToDMesh3Converter.cs
index 4e3e770..cebb994 100644
--- a/src/Utils/NavisworksToDMesh3Converter.cs
+++ b/src/Utils/NavisworksToDMesh3Converter.cs
@@ -147,7 +147,7 @@ namespace NavisworksTransport
 
             LogManager.Info($"[DMesh3转换] 共 {itemCount} 个模型项，使用批量提取方式");
 
-            var allTriangles = GeometryHelper.ExtractTrianglesBatch(itemsList);
+            var allTriangles = GeometryHelper.ExtractTriangles(itemsList);
 
             extractStopwatch.Stop();
             LogManager.Info($"[DMesh3转换] 从 {itemCount} 个模型项共提取 {allTriangles.Count} 个三角形，耗时: {extractStopwatch.ElapsedMilliseconds} ms ({extractStopwatch.Elapsed.TotalSeconds:F2}秒)");
@@ -173,7 +173,7 @@ namespace NavisworksTransport
 
             try
             {
-                var triangles = GeometryHelper.ExtractTriangles(item);
+                var triangles = GeometryHelper.ExtractTriangles(new[] { item });
                 return Convert(triangles);
             }
             catch (Exception ex)