carla/PythonAPI/util/lane_explorer.py

206 lines
7.1 KiB
Python
Executable File

#!/usr/bin/env python
# Copyright (c) 2019 Computer Vision Center (CVC) at the Universitat Autonoma de
# Barcelona (UAB).
#
# This work is licensed under the terms of the MIT license.
# For a copy, see <https://opensource.org/licenses/MIT>.
import glob
import os
import sys
try:
sys.path.append(glob.glob('../carla/dist/carla-*%d.%d-%s.egg' % (
sys.version_info.major,
sys.version_info.minor,
'win-amd64' if os.name == 'nt' else 'linux-x86_64'))[0])
except IndexError:
pass
import carla
import argparse
import random
import time
red = carla.Color(255, 0, 0)
green = carla.Color(0, 255, 0)
blue = carla.Color(47, 210, 231)
cyan = carla.Color(0, 255, 255)
yellow = carla.Color(255, 255, 0)
orange = carla.Color(255, 162, 0)
white = carla.Color(255, 255, 255)
trail_life_time = 10
waypoint_separation = 4
def draw_transform(debug, trans, col=carla.Color(255, 0, 0), lt=-1):
debug.draw_arrow(
trans.location, trans.location + trans.get_forward_vector(),
thickness=0.05, arrow_size=0.1, color=col, life_time=lt)
def draw_waypoint_union(debug, w0, w1, color=carla.Color(255, 0, 0), lt=5):
debug.draw_line(
w0.transform.location + carla.Location(z=0.25),
w1.transform.location + carla.Location(z=0.25),
thickness=0.1, color=color, life_time=lt, persistent_lines=False)
debug.draw_point(w1.transform.location + carla.Location(z=0.25), 0.1, color, lt, False)
def draw_waypoint_info(debug, w, lt=5):
w_loc = w.transform.location
debug.draw_string(w_loc + carla.Location(z=0.5), "lane: " + str(w.lane_id), False, yellow, lt)
debug.draw_string(w_loc + carla.Location(z=1.0), "road: " + str(w.road_id), False, blue, lt)
debug.draw_string(w_loc + carla.Location(z=-.5), str(w.lane_change), False, red, lt)
def draw_junction(debug, junction, l_time=10):
"""Draws a junction bounding box and the initial and final waypoint of every lane."""
# draw bounding box
box = junction.bounding_box
point1 = box.location + carla.Location(x=box.extent.x, y=box.extent.y, z=2)
point2 = box.location + carla.Location(x=-box.extent.x, y=box.extent.y, z=2)
point3 = box.location + carla.Location(x=-box.extent.x, y=-box.extent.y, z=2)
point4 = box.location + carla.Location(x=box.extent.x, y=-box.extent.y, z=2)
debug.draw_line(
point1, point2,
thickness=0.1, color=orange, life_time=l_time, persistent_lines=False)
debug.draw_line(
point2, point3,
thickness=0.1, color=orange, life_time=l_time, persistent_lines=False)
debug.draw_line(
point3, point4,
thickness=0.1, color=orange, life_time=l_time, persistent_lines=False)
debug.draw_line(
point4, point1,
thickness=0.1, color=orange, life_time=l_time, persistent_lines=False)
# draw junction pairs (begin-end) of every lane
junction_w = junction.get_waypoints(carla.LaneType.Any)
for pair_w in junction_w:
draw_transform(debug, pair_w[0].transform, orange, l_time)
debug.draw_point(
pair_w[0].transform.location + carla.Location(z=0.75), 0.1, orange, l_time, False)
draw_transform(debug, pair_w[1].transform, orange, l_time)
debug.draw_point(
pair_w[1].transform.location + carla.Location(z=0.75), 0.1, orange, l_time, False)
debug.draw_line(
pair_w[0].transform.location + carla.Location(z=0.75),
pair_w[1].transform.location + carla.Location(z=0.75), 0.1, white, l_time, False)
def main():
argparser = argparse.ArgumentParser()
argparser.add_argument(
'--host',
metavar='H',
default='127.0.0.1',
help='IP of the host server (default: 127.0.0.1)')
argparser.add_argument(
'-p', '--port',
metavar='P',
default=2000,
type=int,
help='TCP port to listen to (default: 2000)')
argparser.add_argument(
'-i', '--info',
action='store_true',
help='Show text information')
argparser.add_argument(
'-x',
default=0.0,
type=float,
help='X start position (default: 0.0)')
argparser.add_argument(
'-y',
default=0.0,
type=float,
help='Y start position (default: 0.0)')
argparser.add_argument(
'-z',
default=0.0,
type=float,
help='Z start position (default: 0.0)')
argparser.add_argument(
'-s', '--seed',
metavar='S',
default=os.getpid(),
type=int,
help='Seed for the random path (default: program pid)')
argparser.add_argument(
'-t', '--tick-time',
metavar='T',
default=0.2,
type=float,
help='Tick time between updates (forward velocity) (default: 0.2)')
args = argparser.parse_args()
try:
client = carla.Client(args.host, args.port)
client.set_timeout(2.0)
world = client.get_world()
m = world.get_map()
debug = world.debug
random.seed(args.seed)
print("Seed: ", args.seed)
loc = carla.Location(args.x, args.y, args.z)
print("Initial location: ", loc)
current_w = m.get_waypoint(loc)
# main loop
while True:
# list of potential next waypoints
potential_w = list(current_w.next(waypoint_separation))
# check for available right driving lanes
if current_w.lane_change & carla.LaneChange.Right:
right_w = current_w.get_right_lane()
if right_w and right_w.lane_type == carla.LaneType.Driving:
potential_w += list(right_w.next(waypoint_separation))
# check for available left driving lanes
if current_w.lane_change & carla.LaneChange.Left:
left_w = current_w.get_left_lane()
if left_w and left_w.lane_type == carla.LaneType.Driving:
potential_w += list(left_w.next(waypoint_separation))
# choose a random waypoint to be the next
next_w = random.choice(potential_w)
potential_w.remove(next_w)
# Render some nice information, notice that you can't see the strings if you are using an editor camera
if args.info:
draw_waypoint_info(debug, current_w, trail_life_time)
draw_waypoint_union(debug, current_w, next_w, cyan if current_w.is_junction else green, trail_life_time)
draw_transform(debug, current_w.transform, white, trail_life_time)
# print the remaining waypoints
for p in potential_w:
draw_waypoint_union(debug, current_w, p, red, trail_life_time)
draw_transform(debug, p.transform, white, trail_life_time)
# draw all junction waypoints and bounding box
if next_w.is_junction:
junction = next_w.get_junction()
draw_junction(debug, junction, trail_life_time)
# update the current waypoint and sleep for some time
current_w = next_w
time.sleep(args.tick_time)
finally:
pass
if __name__ == '__main__':
try:
main()
except KeyboardInterrupt:
print('\nExit by user.')
finally:
print('\nExit.')