diff --git a/src/GraphicsSystem/SnapServices.ts b/src/GraphicsSystem/SnapServices.ts
new file mode 100644
index 000000000..7ec187cca
--- /dev/null
+++ b/src/GraphicsSystem/SnapServices.ts
@@ -0,0 +1,14 @@
+
+/**
+ * 提供捕捉的服务.
+ * 
+ * @class SnapServices
+ */
+class SnapServices
+{
+
+    constructor()
+    {
+
+    }
+}
\ No newline at end of file