Add initial version of building selection tool

building_region_selector.py

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+import json
+
+from pathlib import Path
+from shapely.geometry import Polygon
+
+"""
+BuildingSelectionTool is a tool that allows for a subset of buildings to be selected from a larger geojson dataset.
+SPDX - License - Identifier: LGPL - 3.0 - or -later
+Copyright © 2023 Concordia CERC group
+Project Coder Koa Wells kekoa.wells@concordia.ca
+"""
+
+class BuildingSelectionTool:
+  def __init__(self, city_file, output_file):
+    self._city_file = city_file
+    self._city = json.load(city_file)
+    self._buildings = self._city['features']
+    self._polygon_points = []
+
+  def _assign_buildings_to_regions(self):
+    for building in self._buildings:
+      if building['geometry']['type'] == 'Polygon':
+        building_centroid = Polygon(building["geometry"]["coordinates"][0]).centroid
+      elif building['geometry']['type'] == 'MultiPolygon':
+        # use the centroid of the first polygon inside of the multipolygon
+        building_centroid = Polygon(building["geometry"]["coordinates"][0][0]).centroid
+
+      building['properties']['centroid'] = [building_centroid.x, building_centroid.y]
+      building['properties']['district_property'] = []
+
+      target_regions = []
+      region_assigned = False
+
+      target_region = self._regions[len(self._regions) / 2]
+      while not region_assigned:
+        if building_centroid.within(Polygon(target_region['geometry']['coordinates'])):
+          region_assigned = True
+          break
+
+        target_region_centroid = Polygon(target_region['geometry']['coordinates']).centroid
+
+        if building_centroid.x <= target_region_centroid.x:
+          if building_centroid.y >= target_region_centroid.y:
+            regions = regions[0:len(regions) / 2]
+          elif building_centroid.y < target_region_centroid.y:
+            regions = regions[len(regions) / 2:len(regions) - 1]
+        elif building_centroid.x > target_region_centroid.x:
+          if building_centroid.y >= target_region_centroid.y:
+            regions = regions[0:len(regions) / 2]
+          elif building_centroid.y < target_region_centroid.y:
+            regions = regions[len(regions) / 2:len(regions) - 1]
+

data/.gitignore

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+*
+!.gitignore

main.py

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+import json
+from shapely import Polygon
+from shapely import Point
+from pathlib import Path
+
+# Make sure to enter your points in the clockwise direction
+# and in the longitude, latitude format
+selection_box = Polygon([[-73.543833, 45.575932] ,
+                 [-73.541834, 45.575245],
+                 [-73.542275, 45.574652],
+                 [-73.544235, 45.575329],
+                 [-73.543833, 45.575932]])
+
+geojson_file = Path('./data/collinear_clean.geojson').resolve()
+output_file = Path('./output_buildings.geojson').resolve()
+buildings_in_region = []
+
+with open(geojson_file, 'r') as file:
+  city = json.load(file)
+  buildings = city['features']
+
+for building in buildings:
+  coordinates = building['geometry']['coordinates'][0]
+  building_polygon = Polygon(coordinates)
+  centroid = Point(building_polygon.centroid)
+
+  if centroid.within(selection_box):
+    buildings_in_region.append(building)
+
+output_region = {"type": "FeatureCollection",
+                 "features": buildings_in_region}
+
+with open(output_file, 'w') as file:
+  file.write(json.dumps(output_region, indent=2))

map_view_simple_example.py

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+import tkinter
+import tkintermapview
+
+# create tkinter window
+root_tk = tkinter.Tk()
+root_tk.geometry(f"{1000}x{700}")
+root_tk.title("Building Selection Tool")
+
+# create map widget
+map_widget = tkintermapview.TkinterMapView(root_tk, 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
+
+# set current position and zoom
+map_widget.set_position(45.497059, -73.578451, marker=False)  # Berlin, Germany
+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}")
+
+root_tk.mainloop()