NOTE: this example code uses NetworkTablesConnection
which is used specifically for, the FIRST Robotics Competition
in order to connect to the RoboRIO controller
You can easily replace it with a different connections
"""
import ovl
# for other ways to connect to your RoboRIO run the following python code: help(NetworkTablesConnection)
TEAM_NUMBER = "1937"
threshold = ovl.RED_HSV
contour_filters = [
ovl.area_filter(min_area_ratio=150),
ovl.straight_rectangle_filter(min_area_ratio=0.7),
ovl.area_sort()
]
director = ovl.Director(directing_function=ovl.x_center_directions,
failed_detection=9999,
target_amount=1)
camera = ovl.Camera(0, image_width=640, image_height=480)
roborio = ovl.NetworkTablesConnection(roborio=TEAM_NUMBER,
table_name="SmartDashboard",
table_key="vision_directions")
image_filters = [ovl.gaussian_blur((5, 5))]
red_square = ovl.Vision(threshold=threshold,
import asyncio
import copy
from logging import getLogger
import ovl
from ovl import display_contours
logger = getLogger("multi_vision_example")
target_filters = [ovl.percent_area_filter(minimal_percent=2), ovl.area_sort()]
camera = ovl.Camera(0)
red_circle = ovl.Vision(target_filters=target_filters,
threshold=ovl.HSV.red,
camera=camera)
green_circle = copy.copy(red_circle)
green_circle.detector = ovl.ThresholdDetector(threshold=ovl.HSV.green)
yellow_circle = copy.copy(red_circle)
yellow_circle.detector = ovl.ThresholdDetector(threshold=ovl.HSV.yellow)
# connection = NetworkTablesConnection("1937")
circles = {"green": green_circle, "red": red_circle, "yellow": yellow_circle}
controller = ovl.MultiVision(visions=circles)
switcher = {"green": "red", "red": "yellow", "yellow": "green"}
current_color = "green"