train-journey-visuals/speed_map_display.py

98 lines
3.0 KiB
Python

from typing import Optional
import pygame
from gps_loader import GPSLoader
from map_display import MapDisplay
from path import Path
from units import Unit
from vec import Vec2
class SpeedMapDisplay(MapDisplay):
def __init__(self,
surf: pygame.Surface,
min_lon: float,
max_lon: float,
min_lat: float,
max_lat: float,
cities: list[tuple[Vec2, str, str]],
min_speed_col: tuple[int, int, int],
max_speed_col: tuple[int, int, int],
segment_threshold: float):
super().__init__(surf, min_lon, max_lon, min_lat, max_lat, cities)
self.min_speed_col: tuple[int, int, int] = min_speed_col
self.max_speed_col: tuple[int, int, int] = max_speed_col
self.segment_threshold: float = segment_threshold
self._path: Optional[Path] = None
def draw_path(self, path: Path) -> None:
min_speed = min(path.extra_data)
max_speed = max(path.extra_data)
colors = list(map(lambda s: self.interpolate_color(s, min_speed, max_speed), path.extra_data))
self.draw_colored_path(path, colors)
in_segment = False
start_i = 0
for i, speed in enumerate(path.extra_data):
if speed >= self.segment_threshold:
if not in_segment:
in_segment = True
start_i = i
elif in_segment:
in_segment = False
self.draw_segment(path, start_i, i)
def interpolate_color(self, speed: float, min_speed: float, max_speed: float) -> tuple[int, int, int]:
r_span = self.max_speed_col[0] - self.min_speed_col[0]
g_span = self.max_speed_col[1] - self.min_speed_col[1]
b_span = self.max_speed_col[2] - self.min_speed_col[2]
f = (speed - min_speed) / (max_speed - min_speed)
r = int(r_span * f + self.min_speed_col[0])
g = int(g_span * f + self.min_speed_col[1])
b = int(b_span * f + self.min_speed_col[2])
return r, g, b
def render(self) -> None:
self.surf.fill((0, 0, 0))
self.draw_cities()
if self._path is not None:
self.draw_path(self._path)
def set_path(self, path: Path) -> None:
self._path = path
if __name__ == '__main__':
name = "data_28-03"
cities = [
(Vec2(7.359119, 46.227302), "Sion", "above"),
(Vec2(7.079001, 46.105981), "Martigny", "below"),
(Vec2(7.001849, 46.216559), "Saint-Maurice", "right")
]
data = GPSLoader.load_data(f"{name}.csv")
speeds = list(map(lambda s: s.convert(Unit.KM_H).value, data["speeds"]))
path = Path(data["points"], speeds)
pygame.init()
win = pygame.display.set_mode([600, 600])
display = SpeedMapDisplay(
win,
6.971094, 7.430611,
46.076312, 46.253036,
cities,
(255, 0, 0), (0, 255, 0), 155)
display.set_path(path)
display.mainloop()