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Browse files- app.py +172 -0
- requirements.txt +3 -0
app.py
ADDED
@@ -0,0 +1,172 @@
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import gradio as gr
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import folium
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import requests
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import json
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from datetime import datetime
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import time
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class RainViewerMap:
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def __init__(self):
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self.api_url = "https://api.rainviewer.com/public/weather-maps.json"
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self.tile_host = "https://tilecache.rainviewer.com"
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def get_radar_data(self):
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"""Fetch available radar timestamps from RainViewer API"""
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try:
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response = requests.get(self.api_url)
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data = response.json()
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return data
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except Exception as e:
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print(f"Error fetching radar data: {e}")
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return None
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def create_map(self, lat=40.7128, lon=-74.0060, zoom=8, show_radar=True, time_index=0):
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"""Create a Folium map with optional radar overlay"""
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# Create base map
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m = folium.Map(
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location=[lat, lon],
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zoom_start=zoom,
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tiles='OpenStreetMap'
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)
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if show_radar:
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radar_data = self.get_radar_data()
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if radar_data and 'radar' in radar_data:
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# Get available timestamps
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past_data = radar_data['radar']['past']
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nowcast_data = radar_data['radar']['nowcast']
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all_times = past_data + nowcast_data
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if all_times and time_index < len(all_times):
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# Get the radar tile path for selected time
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selected_time = all_times[time_index]
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tile_path = selected_time['path']
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timestamp = selected_time['time']
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# Create tile URL template
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tile_url = f"{self.tile_host}{tile_path}/512/{{z}}/{{x}}/{{y}}/2/1_1.png"
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# Add radar overlay
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folium.raster_layers.TileLayer(
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tiles=tile_url,
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attr='RainViewer',
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name='Radar',
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overlay=True,
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control=True,
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opacity=0.6
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).add_to(m)
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# Add timestamp info
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dt = datetime.fromtimestamp(timestamp)
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folium.Marker(
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[lat + 0.1, lon + 0.1],
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popup=f"Radar Time: {dt.strftime('%Y-%m-%d %H:%M:%S')}",
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icon=folium.Icon(color='blue', icon='info-sign')
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).add_to(m)
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# Add layer control
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folium.LayerControl().add_to(m)
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return m._repr_html_()
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def get_available_times(self):
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"""Get list of available radar times for dropdown"""
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radar_data = self.get_radar_data()
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if radar_data and 'radar' in radar_data:
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past_data = radar_data['radar']['past']
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nowcast_data = radar_data['radar']['nowcast']
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all_times = past_data + nowcast_data
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time_options = []
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for i, time_data in enumerate(all_times):
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timestamp = time_data['time']
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dt = datetime.fromtimestamp(timestamp)
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time_options.append(f"{i}: {dt.strftime('%Y-%m-%d %H:%M:%S')}")
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return time_options
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return ["No data available"]
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def create_gradio_app():
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rain_viewer = RainViewerMap()
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# Get available times for dropdown
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time_options = rain_viewer.get_available_times()
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with gr.Blocks(title="RainViewer Radar Map") as demo:
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gr.Markdown("# RainViewer Radar Map")
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gr.Markdown("Interactive weather radar map powered by RainViewer API")
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with gr.Row():
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with gr.Column(scale=1):
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lat_input = gr.Number(
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label="Latitude",
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value=40.7128,
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info="Map center latitude"
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)
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lon_input = gr.Number(
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label="Longitude",
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value=-74.0060,
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info="Map center longitude"
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)
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zoom_input = gr.Slider(
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minimum=1,
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maximum=15,
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value=8,
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step=1,
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label="Zoom Level"
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)
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show_radar = gr.Checkbox(
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label="Show Radar",
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value=True
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)
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time_dropdown = gr.Dropdown(
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choices=time_options,
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label="Radar Time",
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value=time_options[-1] if time_options else None,
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info="Select radar timestamp"
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)
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update_btn = gr.Button("Update Map", variant="primary")
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refresh_times_btn = gr.Button("Refresh Times")
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with gr.Column(scale=2):
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map_html = gr.HTML(
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value=rain_viewer.create_map(),
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label="Radar Map"
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)
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def update_map(lat, lon, zoom, show_radar_flag, selected_time):
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time_index = 0
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if selected_time and ":" in selected_time:
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time_index = int(selected_time.split(":")[0])
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return rain_viewer.create_map(lat, lon, zoom, show_radar_flag, time_index)
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def refresh_times():
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new_times = rain_viewer.get_available_times()
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return gr.Dropdown(choices=new_times, value=new_times[-1] if new_times else None)
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update_btn.click(
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fn=update_map,
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inputs=[lat_input, lon_input, zoom_input, show_radar, time_dropdown],
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outputs=map_html
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)
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refresh_times_btn.click(
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fn=refresh_times,
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outputs=time_dropdown
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)
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# Auto-update on input changes
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for input_component in [lat_input, lon_input, zoom_input, show_radar, time_dropdown]:
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input_component.change(
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fn=update_map,
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inputs=[lat_input, lon_input, zoom_input, show_radar, time_dropdown],
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outputs=map_html
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)
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return demo
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if __name__ == "__main__":
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app = create_gradio_app()
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app.launch(share=True)
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requirements.txt
ADDED
@@ -0,0 +1,3 @@
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1 |
+
gradio>=4.0.0
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2 |
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folium>=0.14.0
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requests>=2.28.0
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