| import math | |
| from typing import TypedDict, List | |
| from src import app_logger | |
| from src.utilities.constants import TILE_SIZE | |
| class PixelCoordinate(TypedDict): | |
| x: int | |
| y: int | |
| def get_latlng2pixel_projection(latlng) -> PixelCoordinate: | |
| app_logger.info(f"latlng: {type(latlng)}, value:{latlng}.") | |
| app_logger.info(f'latlng lat: {type(latlng["lat"])}, value:{latlng["lat"]}.') | |
| app_logger.info(f'latlng lng: {type(latlng["lng"])}, value:{latlng["lng"]}.') | |
| try: | |
| sin_y: float = math.sin(latlng["lat"] * math.pi / 180) | |
| app_logger.info(f"sin_y, #1:{sin_y}.") | |
| sin_y = min(max(sin_y, -0.9999), 0.9999) | |
| app_logger.info(f"sin_y, #2:{sin_y}.") | |
| x = TILE_SIZE * (0.5 + latlng["lng"] / 360) | |
| app_logger.info(f"x:{x}.") | |
| y = TILE_SIZE * (0.5 - math.log((1 + sin_y) / (1 - sin_y)) / (4 * math.pi)) | |
| app_logger.info(f"y:{y}.") | |
| return {"x": x, "y": y} | |
| except Exception as e_get_latlng2pixel_projection: | |
| app_logger.error(f'e_get_latlng2pixel_projection:{e_get_latlng2pixel_projection}.') | |
| raise e_get_latlng2pixel_projection | |
| def get_point_latlng_to_pixel_coordinates(latlng, zoom: int) -> PixelCoordinate: | |
| try: | |
| world_coordinate: PixelCoordinate = get_latlng2pixel_projection(latlng) | |
| app_logger.debug(f"world_coordinate:{world_coordinate}.") | |
| scale: int = pow(2, zoom) | |
| app_logger.debug(f"scale:{scale}.") | |
| return PixelCoordinate( | |
| x=math.floor(world_coordinate["x"] * scale), | |
| y=math.floor(world_coordinate["y"] * scale) | |
| ) | |
| except Exception as e_format_latlng_to_pixel_coordinates: | |
| app_logger.error(f'format_latlng_to_pixel_coordinates:{e_format_latlng_to_pixel_coordinates}.') | |
| raise e_format_latlng_to_pixel_coordinates | |
| def get_latlng_to_pixel_coordinates(latlng_origin, latlng_current_point, zoom): | |
| latlng_map_origin = get_point_latlng_to_pixel_coordinates(latlng_origin, zoom) | |
| latlng_map_current_point = get_point_latlng_to_pixel_coordinates(latlng_current_point, zoom) | |
| diff_coord_x = abs(latlng_map_origin["x"] - latlng_map_current_point["x"]) | |
| diff_coord_y = abs(latlng_map_origin["y"] - latlng_map_current_point["y"]) | |
| return PixelCoordinate(x=diff_coord_x, y=diff_coord_y) | |