修改命名空间

ShrlAlgoToolkit.RevitCore/Extensions/LevelExtensions.cs

@@ -0,0 +1,12 @@
+using Autodesk.Revit.DB;
+
+namespace ShrlAlgoToolkit.RevitCore.Extensions
+{
+    public static class LevelExtensions
+    {
+        public static SketchPlane GetLevelSketch(this Level level)
+        {
+            return SketchPlane.Create(level.Document, level.GetPlaneReference());
+        }
+    }
+}