fix updateFeatType bug

DFO-Ocean-Navigator · Jan 13, 2025 · 1e5008e · 1e5008e
1 parent 74a48a4
commit 1e5008e
Showing 1 changed file with 35 additions and 30 deletions.
diff --git a/oceannavigator/frontend/src/components/OceanNavigator.jsx b/oceannavigator/frontend/src/components/OceanNavigator.jsx
@@ -328,38 +328,43 @@ function OceanNavigator(props) {
   };
 
   const updateFeatType = (features) => {
-    let prevType = features[0].type;
-    let nextType = typeRef.current;
-    let updatedFeat = {};
+    let updatedFeat = [];
 
-    if (prevType === "point" && (nextType === "line" || nextType === "area")) {
-      let nextCoords = features.map((feat) => {
-        return feat.coords[0];
-      });
-      updatedFeat = [
-        {
-          id: features[0].id,
-          type: nextType,
-          coords: nextCoords,
-        },
-      ];
-    } else if (
-      (prevType === "line" || prevType === "area") &&
-      nextType === "point"
-    ) {
-      let nextCoords = features[0].coords;
-      updatedFeat = nextCoords.map((coord) => {
-        return {
-          id: "id" + Math.random().toString(16).slice(2),
-          type: nextType,
-          coords: [coord],
-        };
-      });
-    } else {
-      updatedFeat = features;
-      updatedFeat[0].type = nextType;
-    }
+    if (features.length > 0) {
+      let prevType = features[0].type;
+      let nextType = typeRef.current;
 
+      if (
+        prevType === "point" &&
+        (nextType === "line" || nextType === "area")
+      ) {
+        let nextCoords = features.map((feat) => {
+          return feat.coords[0];
+        });
+        updatedFeat = [
+          {
+            id: features[0].id,
+            type: nextType,
+            coords: nextCoords,
+          },
+        ];
+      } else if (
+        (prevType === "line" || prevType === "area") &&
+        nextType === "point"
+      ) {
+        let nextCoords = features[0].coords;
+        updatedFeat = nextCoords.map((coord) => {
+          return {
+            id: "id" + Math.random().toString(16).slice(2),
+            type: nextType,
+            coords: [coord],
+          };
+        });
+      } else {
+        updatedFeat = features;
+        updatedFeat[0].type = nextType;
+      }
+    }
     return updatedFeat;
   };