diff --git a/src/graphics/curvature/CurvatureAssistant.ts b/src/graphics/curvature/CurvatureAssistant.ts
index e4995f8..6575aba 100644
--- a/src/graphics/curvature/CurvatureAssistant.ts
+++ b/src/graphics/curvature/CurvatureAssistant.ts
@@ -140,18 +140,10 @@ export class CurvatureInteraction extends GraphicInteractionPlugin<Curvature> {
   bind(g: Curvature): void {
     g.eventMode = 'static';
     g.cursor = 'pointer';
-    g.scalable = true;
     g.draggable = false;
-    g.transformSave = true;
-    g.lineGraphic.eventMode = 'static';
-    g.lineGraphic.cursor = 'pointer';
-    g.lineGraphic.hitArea = new CurvatureGraphicHitArea(g);
+    g.hitArea = new CurvatureGraphicHitArea(g);
   }
   unbind(g: Curvature): void {
     g.eventMode = 'none';
-    g.lineGraphic.eventMode = 'none';
-    g.lineGraphic.draggable = false;
-    g.lineGraphic.selectable = false;
-    g.lineGraphic.transformSave = false;
   }
 }