diff --git a/map_view_simple_example.py b/map_view_simple_example.py
index b3a098a..5189523 100644
--- a/map_view_simple_example.py
+++ b/map_view_simple_example.py
@@ -1,54 +1,52 @@
 import tkinter
 import tkintermapview
-import json
-import copy
 
-with open('./data/collinear_clean.geojson', 'r') as city_file:
-  city = json.load(city_file)
-  buildings = city['features']
+select_buildings = False
+selected_coordinates = []
 
-building_polygons = []
+def marker_click(marker):
+  print(f"marker clicked - text: {marker.text}  position: {marker.position}")
 
-for building in buildings:
-  building_polygon = []
-  if building['geometry']['type'] == 'Polygon':
-    for coordinate in building['geometry']['coordinates'][0]:
-      building_polygon.append((coordinate[1], coordinate[0]))
-    building_polygons.append({'id': building['id'],
-                              'polygon': copy.deepcopy(building_polygon)})
+def on_click(coordinates_tuple):
+  if select_buildings:
+    print(coordinates_tuple)
+    selected_coordinates.append(coordinates_tuple)
+
+def activate_selection_box():
+  select_buildings = True
 
 # create tkinter window
 root_tk = tkinter.Tk()
 root_tk.geometry(f"{1000}x{700}")
 root_tk.title("Building Selection Tool")
 
+# create left frame
+leftframe = tkinter.Frame(root_tk)
+leftframe.pack(side=tkinter.LEFT)
+
+# create right frame
+rightframe = tkinter.Frame(root_tk,width=80)
+rightframe.pack(side=tkinter.RIGHT)
+
+# create button for activating building selection
+selection_box_button = tkinter.Button(leftframe, text="Create Selection Box", command=activate_selection_box)
+selection_box_button.pack(side=tkinter.TOP)
+
+# create text box for viewing selecting coordinates
+text_width = tkinter.Text(leftframe,height=50,width=30)
+text_width.pack(side=tkinter.BOTTOM,padx=50)
+
 # create map widget
-map_widget = tkintermapview.TkinterMapView(root_tk, width=1000, height=700, corner_radius=0)
+map_widget = tkintermapview.TkinterMapView(rightframe, width=1000, height=700, corner_radius=0)
 map_widget.pack(fill="both", expand=True)
 
 # set other tile server (standard is OpenStreetMap)
-map_widget.set_tile_server("https://mt0.google.com/vt/lyrs=m&hl=en&x={x}&y={y}&z={z}&s=Ga", max_zoom=22)  # google normal
-# map_widget.set_tile_server("https://mt0.google.com/vt/lyrs=s&hl=en&x={x}&y={y}&z={z}&s=Ga", max_zoom=22)  # google satellite
+map_widget.set_tile_server("https://mt0.google.com/vt/lyrs=m&hl=en&x={x}&y={y}&z={z}&s=Ga", max_zoom=14)  # google normal
 
 # set current position and zoom
 map_widget.set_position(45.497059, -73.578451, marker=False)  # Montreal, Quebec
 map_widget.set_zoom(11)
 
-# set current position with address
-# map_widget.set_address("Berlin Germany", marker=False)
-
-def marker_click(marker):
-  print(f"marker clicked - text: {marker.text}  position: {marker.position}")
-
-building_polygon_markers = []
-count = 0
-for building_polygon in building_polygons:
-  if count > 1000:
-    break
-  building_polygon_markers.append(map_widget.set_polygon(building_polygon['polygon'],
-                                                           fill_color='black',
-                                                           outline_color='black',
-                                                           name=building_polygon['id']))
-  count+=1
+map_widget.add_left_click_map_command(on_click)
 
 root_tk.mainloop()
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