우선 회전 추가

src/components/fabric/QPolygon.js

@@ -40,7 +40,12 @@ export default class QPolygon extends fabric.Group {
 
     this.on('selected', function () {
       // 모든 컨트롤 떼기
-      this.controls = []
+
+      Object.keys(this.controls).forEach((controlKey) => {
+        if (controlKey !== 'mtr') {
+          this.setControlVisible(controlKey, false)
+        }
+      })
     })
   }