例程讲解-03-circle_drawing绘制圆形

本例程为03-Drawing-circle_drawing.py

# 绘制圆形
#
# 这个例子展示了如何使用OpenMV内置的画圆形功能。
import sensor, image, time, pyb

sensor.reset()
sensor.set_pixformat(sensor.RGB565) # or GRAYSCALE...
sensor.set_framesize(sensor.QVGA) # or QQVGA...
sensor.skip_frames(time = 2000)
clock = time.clock()

while(True):
    clock.tick()

    img = sensor.snapshot()

    for i in range(10):
        x = (pyb.rng() % (2*img.width())) - (img.width()//2)
        y = (pyb.rng() % (2*img.height())) - (img.height()//2)
        radius = pyb.rng() % (max(img.height(), img.width())//2)

        r = (pyb.rng() % 127) + 128
        g = (pyb.rng() % 127) + 128
        b = (pyb.rng() % 127) + 128

        # If the first argument is a scaler then this method expects 
        # to see x, y, and radius. Otherwise, it expects a (x,y,radius) tuple.
        # 如果第一个参数是scaler,那么此方法应传递x y和半径。否则,它需要一个(x,y,半径)元组
        img.draw_circle(x, y, radius, color = (r, g, b), thickness = 2, fill = False)

    print(clock.fps())

运行程序效果图:

星瞳科技OpenMV官方中文文档函数讲解:

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