def process_query_results(query_results, base_map):
in_shape_ids = []
incoming_flow = {}
out_shape_ids = []
outgoing_flow = {}
for itinerary in query_results:
origin_id = Utils.convert_id(itinerary[0])
destination_id = Utils.convert_id(itinerary[1])
weight = itinerary[2]
origin_ids = []
destination_ids = []
# we look only at shapes that are to be rendered
if origin_id in base_map.shape_dict or destination_id in base_map.shape_dict:
shape_origin = base_map.shape_dict[origin_id]
origin_ids.append(origin_id)
shape_destination = base_map.shape_dict[destination_id]
destination_ids.append(destination_id)
# We build a dictionary of outgoing traffic
for origin_id in origin_ids:
if origin_id not in out_shape_ids:
out_shape_ids.append(origin_id)
outgoing_flow[shape_origin] = []
outgoing_flow[shape_origin].append((shape_destination, weight))
# We build a dictionary of incoming traffic
for destination_id in destination_ids:
if destination_id not in in_shape_ids:
in_shape_ids.append(destination_id)
incoming_flow[shape_destination] = []
incoming_flow[shape_destination].append((shape_origin, weight))
return outgoing_flow, incoming_flow
def process_query_results(query_results_dict, map_item):
processed_query_results_dict = {}
# we find the min and max passengers for the whole year
min_passenger = 999999999
max_passenger = 0
for query_date in query_results_dict:
temp_min, temp_max = Utils.compute_min_max_passengers(query_results_dict[query_date], 2)
if temp_min < min_passenger:
min_passenger = temp_min
if temp_max > max_passenger:
max_passenger = temp_max
# we transform the query_results_dict to use instances of the PointOnMap class
for query_date in query_results_dict:
query_result = query_results_dict[query_date]
processed_query_results_dict[query_date] = []
for itinerary in query_result:
processed_itinerary = []
zone_id_origin = Utils.convert_id(itinerary[0])
zone_id_destination = Utils.convert_id(itinerary[1])
if zone_id_origin == zone_id_destination:
color = (141, 91, 67)
else:
color = (135, 162, 34)
weight = compute_weight(map_item[0], itinerary[2], max_passenger)
shape_origin = map_item[1].shape_dict[zone_id_origin]
coords = shape_origin.center
point_to_render = classfile.PointOnMap(coords, weight, color)
processed_itinerary.append(point_to_render)
shape_dest = map_item[1].shape_dict[zone_id_destination]
target_coords = shape_dest.center
processed_itinerary.append(target_coords)
processed_itinerary.append(weight)
processed_query_results_dict[query_date].append(processed_itinerary)
return processed_query_results_dict, min_passenger, max_passenger
def render_single_map(flow_dict, flow_dir, base_map, file_name, zone_shape):
map_rendered = base_map.map_file.copy()
zone_name = find_names(zone_shape, base_map)
zone_id = Utils.convert_id(zone_shape.shape_id, inverse=True)
map_title = '{}_{}_{}_{}_{}'.format(file_name[0], zone_id, zone_name,
flow_dir, file_name[1])
trips_list = flow_dict[zone_shape]
min_passenger, max_passenger = Utils.compute_min_max_passengers(
trips_list, 1)
colors = []
for linked_zone in trips_list:
shape_to_color = linked_zone[0]
if shape_to_color.shape_id != zone_shape.shape_id:
weight = linked_zone[1]
render_color = compute_color(weight, min_passenger, max_passenger)
shape_to_color.color_fill = render_color
if render_color not in colors:
colors.append(render_color)
shape_to_color.fill_in_shape(map_rendered)
# we draw again the boundaries of the shape after filling it in
pts = np.array(shape_to_color.points, np.int32)
cv2.polylines(map_rendered, [pts], True, (255, 255, 255), 1,
cv2.LINE_AA)
# outline the focused shape
zone_shape.color_line = [95, 240, 255]
zone_shape.line_thick = 3
pts = np.array(zone_shape.points, np.int32)
cv2.polylines(map_rendered, [pts], True, zone_shape.color_line,
zone_shape.line_thick, cv2.LINE_AA)
# display the legend
display_specific_text(map_rendered, zone_id, zone_name, flow_dir,
min_passenger, max_passenger, colors)
# save the image
cv2.imwrite(('{}.png').format(map_title), map_rendered)
