289 lines
7.4 KiB
Python
289 lines
7.4 KiB
Python
"""
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City module
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SPDX - License - Identifier: LGPL - 3.0 - or -later
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Copyright © 2020 Project Author Guille Gutierrez guillermo.gutierrezmorote@concordia.ca
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"""
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from __future__ import annotations
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import sys
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import pickle
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from typing import List, Union
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import pyproj
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from pyproj import Transformer
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from city_model_structure.building import Building
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from city_model_structure.city_object import CityObject
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from helpers.geometry_helper import GeometryHelper
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from helpers.location import Location
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import math
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class City:
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"""
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City class
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"""
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def __init__(self, lower_corner, upper_corner, srs_name, buildings=None):
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self._name = None
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self._lower_corner = lower_corner
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self._upper_corner = upper_corner
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self._buildings = buildings
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self._srs_name = srs_name
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self._geometry = GeometryHelper()
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# todo: right now extracted at city level, in the future should be extracted also at building level if exist
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self._location = None
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self._country_code = None
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self._climate_reference_city = None
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self._climate_file = None
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self._latitude = None
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self._longitude = None
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self._time_zone = None
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self._generic_city_object = None
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def _get_location(self) -> Location:
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if self._location is None:
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gps = pyproj.CRS('EPSG:4326') # LatLon with WGS84 datum used by GPS units and Google Earth
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try:
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input_reference = pyproj.CRS(self.srs_name) # Projected coordinate system from input data
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except pyproj.exceptions.CRSError:
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sys.stderr.write('Invalid projection reference system, please check the input data. '
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'(e.g. in CityGML files: srs_name)\n')
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sys.exit()
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transformer = Transformer.from_crs(input_reference, gps)
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coordinates = transformer.transform(self.lower_corner[0], self.lower_corner[1])
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self._location = GeometryHelper.get_location(coordinates[0], coordinates[1])
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return self._location
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@property
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def country_code(self):
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"""
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City country code
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:return: str
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"""
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return self._get_location().country
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@property
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def name(self):
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"""
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City name
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:return: str
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"""
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return self._get_location().city
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@property
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def climate_reference_city(self):
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return self._climate_reference_city
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@climate_reference_city.setter
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def climate_reference_city(self, value):
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self._climate_reference_city = value
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@property
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def climate_file(self):
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return self._climate_file
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@climate_file.setter
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def climate_file(self, value):
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self._climate_file = value
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@property
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def city_objects(self) -> Union[List[CityObject], None]:
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"""
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City objects belonging to the city
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:return: None or [CityObject]
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"""
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return self.buildings
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@property
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def buildings(self) -> Union[List[Building], None]:
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"""
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Buildings belonging to the city
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:return: None or [Building]
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"""
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return self._buildings
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@property
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def trees(self) -> NotImplementedError:
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"""
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Trees belonging to the city
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:return: NotImplementedError
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"""
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raise NotImplementedError
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@property
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def bixi_features(self) -> NotImplementedError:
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"""
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Bixi features belonging to the city
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:return: NotImplementedError
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"""
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raise NotImplementedError
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@property
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def composting_plants(self) -> NotImplementedError:
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"""
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Composting plants belonging to the city
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:return: NotImplementedError
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"""
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raise NotImplementedError
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@property
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def lower_corner(self):
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"""
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City lower corner
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:return: [x,y,z]
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"""
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return self._lower_corner
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@property
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def upper_corner(self):
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"""
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City upper corner
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:return: [x,y,z]
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"""
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return self._upper_corner
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def city_object(self, name) -> Union[CityObject, None]:
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"""
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Retrieve the city CityObject with the given name
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:param name:str
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:return: None or CityObject
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"""
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for city_object in self.buildings:
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if city_object.name == name:
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return city_object
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return None
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def add_city_object(self, new_city_object):
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"""
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Add a CityObject to the city
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:param new_city_object:CityObject
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:return: None
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"""
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if new_city_object.type == 'building':
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if self._buildings is None:
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self._buildings = []
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self._buildings.append(new_city_object)
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else:
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if self._generic_city_object is None:
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self._generic_city_object = []
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self._generic_city_object.append(new_city_object)
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def remove_city_object(self, city_object):
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"""
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Remove a CityObject from the city
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:param city_object:CityObject
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:return: None
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"""
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if city_object.type != 'building':
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raise NotImplementedError(city_object.type)
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if self._buildings is None or self._buildings == []:
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sys.stderr.write('Warning: impossible to remove city_object, the city is empty\n')
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else:
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if city_object in self._buildings:
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self._buildings.remove(city_object)
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@property
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def srs_name(self):
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"""
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srs name
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:return: str
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"""
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return self._srs_name
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@name.setter
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def name(self, value):
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"""
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Set the city name
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:param value:str
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:return: None
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"""
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self._name = value
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@staticmethod
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def load(city_filename) -> City:
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"""
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Load a city saved with city.save(city_filename)
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:param city_filename: city filename
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:return: City
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"""
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with open(city_filename, 'rb') as f:
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return pickle.load(f)
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def save(self, city_filename):
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"""
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Save a city into the given filename
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:param city_filename: destination city filename
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:return:
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"""
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with open(city_filename, 'wb') as f:
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pickle.dump(self, f)
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def region(self, center, radius):
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"""
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Save a city into the given filename
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:param center: specific point in space [x, y, z]
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:param radius: distance to center of the sphere selected in meters
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:return: selected_region_city
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"""
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selected_region_lower_corner = [center[0] - radius, center[1] - radius, center[2] - radius]
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selected_region_upper_corner = [center[0] + radius, center[1] + radius, center[2] + radius]
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selected_region_city = City(selected_region_lower_corner, selected_region_upper_corner, srs_name=self.srs_name)
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selected_region_city.climate_file = self.climate_file
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# selected_region_city.climate_reference_city = self.climate_reference_city
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for city_object in self.city_objects:
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location = city_object.centroid
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if location is not None:
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distance = math.sqrt(math.pow(location[0]-center[0], 2) + math.pow(location[1]-center[1], 2)
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+ math.pow(location[2]-center[2], 2))
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if distance < radius:
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selected_region_city.add_city_object(city_object)
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return selected_region_city
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@property
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def latitude(self):
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"""
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city latitude in degrees
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:return: real
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"""
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return self._latitude
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@latitude.setter
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def latitude(self, value):
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"""
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city latitude in degrees
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:parameter value: real
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"""
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self._latitude = value
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@property
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def longitude(self):
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"""
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city longitude in degrees
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:return: real
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"""
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return self._longitude
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@longitude.setter
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def longitude(self, value):
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"""
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city longitude in degrees
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:parameter value: real
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"""
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self._longitude = value
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@property
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def time_zone(self):
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"""
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city time_zone
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:return: real
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"""
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return self._time_zone
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@time_zone.setter
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def time_zone(self, value):
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"""
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city time_zone
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:parameter value: real
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"""
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self._time_zone = value
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