Update app.py

app.py

@@ -176,6 +176,39 @@ def generate_image_url(image):
     b64_str = base64.b64encode(encoded_buffer).decode("utf-8")
     return "data:image/png;base64," + b64_str
 
+
+def generate_plot_url(objs_pcd):
+    """Generate a shareable URL for a Plotly 3D scatter plot of point clouds."""
+    fig = go.Figure()
+
+    for data, clr in objs_pcd:
+        points = np.asarray(data.points)
+        point_range = range(0, points.shape[0], 1)
+
+        fig.add_trace(go.Scatter3d(
+            x=points[point_range, 0],
+            y=points[point_range, 1], 
+            z=points[point_range, 2]*100,
+            mode='markers',
+            marker=dict(
+                size=1,
+                color='rgb'+str(clr), 
+                opacity=1
+            )
+        ))
+
+    fig.update_layout(
+        scene=dict(
+            xaxis_title='X',
+            yaxis_title='Y',
+            zaxis_title='Z'
+        )
+    )
+    
+    plot_html = fig.to_html(include_plotlyjs='cdn', full_html=False)
+    b64_str = base64.b64encode(plot_html.encode("utf-8")).decode("utf-8")
+    return "data:text/html;base64," + b64_str
+
 def get_3d_position(center, depth, camera_matrix):
     """Project 2D center into 3D space using depth and camera matrix."""
     cx, cy = center