From 22f306249d0a6bbf431c057edd21571deba35a53 Mon Sep 17 00:00:00 2001
From: que01 <que01@foxmail.com>
Date: Fri, 7 Aug 2026 13:23:33 +0800
Subject: [PATCH] feat(preview): default inspect mode to roads

---
 scripts/lib/cesium-preview.js | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/scripts/lib/cesium-preview.js b/scripts/lib/cesium-preview.js
index 75e536b..72398f5 100644
--- a/scripts/lib/cesium-preview.js
+++ b/scripts/lib/cesium-preview.js
@@ -258,6 +258,8 @@
       const label = document.createElement("label");
       const input = document.createElement("input");
       input.type = "checkbox";
+      // Road observation is the primary workflow. Keep the optional semantic
+      // layers available, but avoid letting buildings obscure the first view.
       input.checked = false;
       input.dataset.assetId = asset.id;
       input.addEventListener("change", async () => {
@@ -347,8 +349,9 @@
           }
           return;
         }
-        model.show = true;
-        if (asset.toggle) asset.toggle.checked = true;
+        const roadFocus = asset.id === "roads";
+        model.show = roadFocus;
+        if (asset.toggle) asset.toggle.checked = roadFocus;
       }));
       if (viewMode !== "inspect") {
         for (const asset of semanticAssets(assets)) {