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src/gradio_app.py

@@ -1,7 +1,6 @@
 """
-Gradio river network explorer — click directly on the river line (or
-use the slider) to read interpolated elevation and estimated groundwater
-level at that point.
+Gradio river network explorer — slide to read interpolated elevation 
+and estimated groundwater level along the river.
 
 Usage:
     python app.py --data-root datasets
@@ -232,7 +231,7 @@ def build_figure_real(info, basin_name: str, color: str, wells_df=None, marker_l
             hoverinfo="skip", showlegend=False,
         ))
     fig.update_layout(
-        title=f"{basin_name} — click the line",
+        title=f"{basin_name} — use slider to navigate",
         xaxis_title="Longitude", yaxis_title="Latitude",
         yaxis=dict(scaleanchor="x", scaleratio=1),
         height=520, margin=dict(l=10, r=10, t=40, b=10),
@@ -261,7 +260,7 @@ def build_figure_schematic(targets, basin_name: str, color: str, marker_x=None,
             hoverinfo="skip", showlegend=False,
         ))
     fig.update_layout(
-        title=f"{basin_name} — click the line (schematic, no digitized centerline)",
+        title=f"{basin_name} — use slider to navigate (schematic)",
         xaxis_title="Position along river (upstream → downstream)", yaxis_title="Elevation (m)",
         xaxis=dict(showticklabels=False), height=340,
         margin=dict(l=10, r=10, t=40, b=10),
@@ -445,30 +444,6 @@ with gr.Blocks(title="River Network Explorer") as demo:
 
     slider.change(compute_position, inputs=[basin_radio, slider], outputs=[plot_output, metric_elev, metric_dist, metric_gw, coords_md, plot_waterlevel, plot_discharge, plot_rating])
 
-    def on_plot_select(basin_id, select_data: gr.SelectData):
-        if not select_data or select_data.index is None:
-            return gr.skip()
-        try:
-            point_idx = select_data.index
-            nodes, edges = get_graph(DATA_ROOT)
-            centerlines = get_centerlines(DATA_ROOT, nodes)
-            if basin_id in centerlines:
-                targets = centerlines[basin_id]["click_targets"]
-                if point_idx < len(targets):
-                    km = targets.iloc[point_idx]["distance_from_mouth_km"]
-                    pct = int(round(100 * float(km) / centerlines[basin_id]["total_km"]))
-                    return pct
-            else:
-                targets = schematic_click_targets(nodes, edges, basin_id)
-                if point_idx < len(targets):
-                    frac = targets.iloc[point_idx]["fraction"]
-                    return int(round(100 * float(frac)))
-        except Exception:
-            pass
-        return gr.skip()
-
-    plot_output.select(on_plot_select, inputs=[basin_radio], outputs=[slider])
-
     demo.load(update_view, inputs=[view_radio, basin_radio], outputs=[explore_group, validation_group, status_md, plot_output, slider])
 
 # if __name__ == "__main__":