Update app.py

app.py

@@ -9,7 +9,7 @@ import folium
 from folium.plugins import MarkerCluster
 from branca.colormap import linear
 
-# ---------- 可選依賴偵測（表格美化；沒裝也能跑） ----------
+# ------- 可選依賴偵測（表格美化；沒裝也能跑） -------
 try:
     import tabulate as _tabulate  # noqa: F401
     HAS_TABULATE = True
@@ -192,11 +192,11 @@ def map_osm_html(df: pd.DataFrame):
     center = [d["Lat"].mean(), d["Lon"].mean()]
     m = folium.Map(location=center, zoom_start=6, tiles="OpenStreetMap", control_scale=True)
 
-    # 顏色條（深度）
+    # 顏色條（深度）— 以 viridis（通用寫法）取代 Viridis_08
     depth_min, depth_max = float(d["Depth_km"].min()), float(d["Depth_km"].max())
     if depth_min == depth_max:
         depth_min, depth_max = max(0.0, depth_min - 1), depth_max + 1
-    cmap = linear.Viridis_08.scale(depth_min, depth_max)
+    cmap = linear.viridis.scale(depth_min, depth_max)
     cmap.caption = "Depth (km)"
     cmap.add_to(m)
 
@@ -252,7 +252,7 @@ def query_and_render(time_from, time_to, sort_order):
         map_html = map_osm_html(df)
 
         csv_bytes = df.to_csv(index=False).encode("utf-8-sig")
-        # 回傳 (bytes, filename) 讓舊版 Gradio 也能指定檔名
+        # 回傳 (bytes, filename) 讓（舊）Gradio 也能指定檔名
         return md, map_html, (csv_bytes, "CWA_E-A0015-001.csv")
     except Exception as e:
         return f"錯誤：{e}", "<div style='padding:8px'>（無法繪圖）</div>", None
@@ -285,7 +285,7 @@ with gr.Blocks(fill_height=True) as demo:
 
         table_out = gr.Markdown("（尚未查詢）")
         map_out = gr.HTML()  # 嵌入 OSM 互動地圖
-        dl_btn = gr.DownloadButton(label="下載 CSV")  # 不使用 file_name
+        dl_btn = gr.DownloadButton(label="下載 CSV")  # 不使用 file_name 參數
 
     # 快速鍵
     btn_12h.click(lambda: set_time_range(hours=12), outputs=[time_from, time_to])