diff --git a/packages/core/src/lib/element/element-base.ts b/packages/core/src/lib/element/element-base.ts
deleted file mode 100644
index 296c6ce..0000000
--- a/packages/core/src/lib/element/element-base.ts
+++ /dev/null
@@ -1,5 +0,0 @@
-class ElementBase {
-  constructor() {
-    
-  }
-}
\ No newline at end of file
diff --git a/packages/core/src/lib/element/element-controller.ts b/packages/core/src/lib/element/element-controller.ts
deleted file mode 100644
index fca9be0..0000000
--- a/packages/core/src/lib/element/element-controller.ts
+++ /dev/null
@@ -1,6 +0,0 @@
-
-class ElementController {
-  // TODO
-}
-
-export default ElementController;
\ No newline at end of file
diff --git a/packages/core/src/lib/element/element-hub.ts b/packages/core/src/lib/element/element-hub.ts
deleted file mode 100644
index 96237ff..0000000
--- a/packages/core/src/lib/element/element-hub.ts
+++ /dev/null
@@ -1,26 +0,0 @@
-import ElementController from './element-controller';
-
-class ElementHub {
-
-  private _controllerMap: Map<string, ElementController> = new Map();
-
-  constructor() {
-    // TODO
-  }
-
-  register(type: string, controller: ElementController) {
-    if (this._controllerMap.has(type) !== true) {
-      this._controllerMap.set(type, controller)
-    }
-  }
-
-  clear() {
-    this._controllerMap.clear();
-  }
-
-  getDrawActions() {
-    // TODO
-  }
-}
-
-export default ElementHub;
\ No newline at end of file