Made slider interactive

pages/burn_mapping.py

@@ -13,6 +13,7 @@ class Map(geemap.Map):
     def __init__(self, **kwargs):
         super().__init__(**kwargs)
         self.add_ee_data()
+        self.customize_ee_data(10)
         self.add("layer_manager")
         self.add_selector()
         self.add_intSlider()
@@ -41,6 +42,25 @@ class Map(geemap.Map):
         self.addLayer(dixie, dNBRvisParams, 'Dixie Complex GOES NBR', False)
         self.addLayer(cam_peak, dNBRvisParams, 'Cameron Peak GOES NBR', False)
         self.addLayer(aug_complex, dNBRvisParams, 'August Complex GOES NBR', False)
+        
+    def customize_ee_data(elapDays):
+        def calc_nbr(pre_start, pre_stop, post_start, post_stop, bbox):
+                PREgoesCMI = ee.ImageCollection('NOAA/GOES/17/MCMIPF').filter(ee.Filter.date(pre_start, pre_stop)).mean()
+                POSTgoesCMI = ee.ImageCollection('NOAA/GOES/17/MCMIPF').filter(ee.Filter.date(post_start, post_stop)).mean()
+                preNBR = PREgoesCMI.select(['CMI_C03','CMI_C06']).normalizedDifference(['CMI_C03', 'CMI_C06']).toFloat().rename('NBR')
+                postNBR = POSTgoesCMI.select(['CMI_C03','CMI_C06']).normalizedDifference(['CMI_C03', 'CMI_C06']).toFloat().rename('NBR')
+                dNBR = preNBR.subtract(postNBR).select('NBR')
+                dNBRclipped = dNBR.clip(bbox)
+                return dNBRclipped
+            
+        north_complex_bb = ee.Geometry.BBox(-121.616097, 39.426723, -120.668526, 40.030845)
+        startDate = ee.Date('2020-08-16')
+        elapDayNum = ee.Number(elapDays)
+        postStart = startDate.advance(1, 'day')
+        postStop = postStart.advance(1, 'day')
+        north_complex = calc_nbr('2020-08-15', '2020-08-16', postStart, postStop, north_complex_bb) 
+        self.addLayer(north_complex, dNBRvisParams, 'North Complex GOES NBR', True)
+
 
     def add_selector(self):
         selector = widgets.Dropdown(options=fireList, value="North Complex", description='Wildfire Case Study:') 
@@ -68,7 +88,14 @@ class Map(geemap.Map):
 
     def add_intSlider(self):
         slider = widgets.IntSlider(value=7,min=1,max=30,step=1,description='Elapsed days:',)
+        
+        def on_slider_change(change):
+            selected_days = change['new']
+            customize_ee_data(selected_days)
+            
+        slider.observe(on_slider_change) 
         self.add_widget(slider, position="topleft")
+        
 
 @solara.component
 def Page():