新增单位水头损失计算属性分级

src/app/OlMap/MapComponent.tsx

@@ -566,6 +566,7 @@ const MapComponent: React.FC<MapComponentProps> = ({ children }) => {
                   data.set(featureId, {
                     id: featureId,
                     diameter: props.diameter || 0,
+                    length: props.length || 0,
                     path: lineCoordsWGS84, // 使用重建后的坐标
                     position: midPoint,
                     angle: lineAngle,
@@ -833,13 +834,21 @@ const MapComponent: React.FC<MapComponentProps> = ({ children }) => {
         let idPart = showPipeId ? d.id : "";
         let propPart = "";
         if (showPipeTextLayer && d[pipeText] !== undefined) {
-          const value = Math.abs(d[pipeText] as number).toFixed(3);
+          let value;
+          if (pipeText === "unit_headloss") {
+            value = (
+              (d["unit_headloss"] / (d["length"] / 1000)) as number
+            ).toFixed(3);
+          } else {
+            value = Math.abs(d[pipeText] as number).toFixed(3);
+          }
           // 根据属性类型添加符号前缀
           const prefix =
             {
               flow: "F:",
               velocity: "V:",
               headloss: "HL:",
+              unit_headloss: "UHL:",
               diameter: "D:",
               friction: "FR:",
             }[pipeText] || "";