ok

app.py

@@ -169,6 +169,15 @@ class ECMWFWindDataProcessor:
                 u_values = u_values[::-1, :]
                 v_values = v_values[::-1, :]
             
+            # Downsample to reduce data size for better performance
+            # Skip every 4th point to reduce from 1M+ to ~65k points
+            downsample_factor = 4
+            lats = lats[::downsample_factor]
+            lons = lons[::downsample_factor]
+            u_values = u_values[::downsample_factor, ::downsample_factor]
+            v_values = v_values[::downsample_factor, ::downsample_factor]
+            
+            
             # Convert to lists and flatten in row-major order
             u_data = u_values.flatten().tolist()
             v_data = v_values.flatten().tolist()
@@ -1233,8 +1242,24 @@ def create_wind_map(region="global", forecast_mode=False):
     
     return m._repr_html_()
 
+# Global state to prevent duplicate processing
+_processing_state = {"is_processing": False, "last_request": None}
+
 def update_visualization(region, forecast_mode=False):
     """Update wind visualization for selected region and mode"""
+    global _processing_state
+    
+    # Create unique request identifier
+    request_id = f"{region}_{forecast_mode}"
+    
+    # Prevent duplicate processing
+    if _processing_state["is_processing"] and _processing_state["last_request"] == request_id:
+        print(f"⚠️ Skipping duplicate request: {request_id}")
+        return "⏳ Processing previous request...", "⏳ Processing..."
+    
+    _processing_state["is_processing"] = True
+    _processing_state["last_request"] = request_id
+    
     try:
         mode_str = "forecast" if forecast_mode else "current"
         print(f"🔄 Creating {mode_str} wind visualization for {region}")
@@ -1252,6 +1277,9 @@ def update_visualization(region, forecast_mode=False):
         error_msg = f"❌ Error: {str(e)}"
         print(error_msg)
         return f"<div style='padding: 20px; color: red;'>Error: {str(e)}</div>", error_msg
+    finally:
+        # Reset processing state
+        _processing_state["is_processing"] = False
 
 # Create Gradio interface
 with gr.Blocks(title="Wind Particle Visualization") as app: