From 274a6ab6e4001b8b6937558d9de541d40bdae3c2 Mon Sep 17 00:00:00 2001
From: hu de yi <mehudeyi@163.com>
Date: Mon, 19 May 2025 16:17:41 +0800
Subject: [PATCH] TileLayer.getTiles null  defense

---
 packages/maptalks/src/layer/tile/TileLayer.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/maptalks/src/layer/tile/TileLayer.ts b/packages/maptalks/src/layer/tile/TileLayer.ts
index cd855e0f72..374029aa51 100644
--- a/packages/maptalks/src/layer/tile/TileLayer.ts
+++ b/packages/maptalks/src/layer/tile/TileLayer.ts
@@ -312,7 +312,7 @@ class TileLayer extends Layer {
             const parentIds = tileGrid.tiles.map(tile => {
                 return tile.parent;
             });
-            tileGrid.parents = tileGrid.parents.filter(parent => {
+            tileGrid.parents = (tileGrid.parents || []).filter(parent => {
                 return parentIds.indexOf(parent.id) > -1;
             });
         });