清理掉lines和polygons的数组判断

index.js

@@ -277,18 +277,14 @@ function getRegionPoints(circles, lineAndMarkers, polygonAndMarkers) {
         regionPoints.push(getCircleRegions(circles[i]));
     }
     
-    if(Array.isArray(lineAndMarkers.lines)) {
-        let lines = lineAndMarkers.lines;
-        for (let i = 0; i < lines.length; i++) {
-            regionPoints.push(lines[i].coordinates);
-        }
+    let lines = lineAndMarkers.lines;
+    for (let i = 0; i < lines.length; i++) {
+        regionPoints.push(lines[i].coordinates);
     }
     
-    if(Array.isArray(lineAndMarkers.polygons)) {
-        let polygons = getPolygonsAndMarkers.polygons;
-        for (let i = 0; i < polygons.length; i++) {
-            regionPoints.push(polygons.coordinates);
-        }
+    let polygons = getPolygonsAndMarkers.polygons;
+    for (let i = 0; i < polygons.length; i++) {
+        regionPoints.push(polygons.coordinates);
     }
     
     return regionPoints;