diff --git a/protos/stationLayoutGraphics.proto b/protos/stationLayoutGraphics.proto
index ad7f07d..284b79d 100644
--- a/protos/stationLayoutGraphics.proto
+++ b/protos/stationLayoutGraphics.proto
@@ -46,7 +46,7 @@ message RtssGraphicStorage {
   GenerateAxleCountingConfig generateAxleCountingConfig = 38;//一键生成计轴的配置
   repeated DepartureTimer departureTimers = 39; // 发车计时器
   repeated AutoReturnBox autoReturnBoxs = 40; // 自动折返按钮箱
-  repeated ConcentrationDividingLine concentrationDividingLines = 41; // 集中区分割线
+  repeated Polygon polygons = 41; // 多边形——集中区分割线
 }
 
 message Canvas {
@@ -123,10 +123,14 @@ message CommonInfo {
 //   repeated Point points = 5; // 点坐标列表
 // }
 
-message ConcentrationDividingLine {
+message Polygon {
+  enum PolygonType {
+    ConcentrationDividingLine = 0;//集中区分割线
+  }
   CommonInfo common = 1;
   string code = 2;           // 编号
-  repeated Point points = 3; // 点列表
+  PolygonType polygonType = 3; // 多边形类型
+  repeated Point points = 4; // 点列表
 }
 
 message Platform {