Update app.py

app.py

@@ -157,7 +157,7 @@ def get_dem_slope_maps(buffer_ee_geometry):
     vis_params = {"min": min_value, "max": max_value, "palette": ["blue", "green", "yellow", "red"]}
     dem_map.addLayer(contours, vis_params, "Contours")
     # Create a colormap
-    colormap = cm.LinearColormap(colors=vis_params["palette"], vmin=vis_params["min"], vmax=vis_params["max"])
+    cmap = cm.LinearColormap(colors=vis_params["palette"], vmin=vis_params["min"], vmax=vis_params["max"])
     #dem_map.add_child(colormap)
     #dem_map.add_colormap(width=4,vmin=min_value, vmax=max_value, palette=vis_params['palette'],
     #                     vis_params=vis_params, label='Elevation(m)',