diff --git a/protos/stationLayoutGraphics.proto b/protos/stationLayoutGraphics.proto
index 1d594e7..51bad72 100644
--- a/protos/stationLayoutGraphics.proto
+++ b/protos/stationLayoutGraphics.proto
@@ -92,7 +92,6 @@ message Platform {
 message Station {
   CommonInfo common = 1;
   string code = 2;
-  bool hasCircle = 3;     // 是否有圆圈--线网图
 }
 
 message Train {