fix: check for valid start and end waypoints on vehicles before writing to model (#200)

Author: jmccollum-woolpert

application/frontend/src/app/core/containers/csv-upload-dialog/csv-upload-dialog.component.ts

@@ -1143,16 +1143,22 @@ export class CsvUploadDialogComponent implements OnDestroy, OnInit {
 
   geocodingResultsToVehicles(res: any): void {
     for (let i = 0; i < res.length; i += 2) {
-      this.scenario.model.vehicles[i / 2].startWaypoint = {
-        location: {
-          latLng: res[i],
-        },
-      };
-      this.scenario.model.vehicles[i / 2].endWaypoint = {
-        location: {
-          latLng: res[i + 1],
-        },
-      };
+      const start = res[i];
+      const end = res[i + 1];
+      if (start) {
+        this.scenario.model.vehicles[i / 2].startWaypoint = {
+          location: {
+            latLng: res[i],
+          },
+        };
+      }
+      if (end) {
+        this.scenario.model.vehicles[i / 2].endWaypoint = {
+          location: {
+            latLng: res[i + 1],
+          },
+        };
+      }
     }
   }