From aab04a1011c44bc46511251a8190e568d42a8398 Mon Sep 17 00:00:00 2001
From: Mstislav Zhivodkov <stevemyz@gmail.com>
Date: Tue, 14 May 2024 19:47:58 +0100
Subject: [PATCH] Fix demo initialized without url params

---
 demo/index.ts | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/demo/index.ts b/demo/index.ts
index cda1255..35b29fe 100644
--- a/demo/index.ts
+++ b/demo/index.ts
@@ -109,10 +109,18 @@ const updateUrl = throttle(() => {
 
 function restoreFromUrl() {
     const query = parseQuery();
-    map.setCenter([query.lng, query.lat], { animate: false });
-    map.setZoom(query.zoom, { animate: false });
-    map.setRotation(query.rotation, { animate: false });
-    map.setPitch(query.pitch, { animate: false });
+    if (query.lng !== undefined && query.lat !== undefined) {
+        map.setCenter([query.lng, query.lat], { animate: false });
+    }
+    if (query.zoom !== undefined) {
+        map.setZoom(query.zoom, { animate: false });
+    }
+    if (query.rotation !== undefined) {
+        map.setRotation(query.rotation, { animate: false });
+    }
+    if (query.pitch !== undefined) {
+        map.setPitch(query.pitch, { animate: false });
+    }
     for (const key in heatOptions) {
         if (query[key] !== undefined && !Number.isNaN(query[key])) {
             if (key === 'adaptiveViewportPallete') {