icdar.py 文件源码

def line_cross_point(line1, line2):
    # line1 0= ax+by+c, compute the cross point of line1 and line2
    if line1[0] != 0 and line1[0] == line2[0]:
        print('Cross point does not exist')
        return None
    if line1[0] == 0 and line2[0] == 0:
        print('Cross point does not exist')
        return None
    if line1[1] == 0:
        x = -line1[2]
        y = line2[0] * x + line2[2]
    elif line2[1] == 0:
        x = -line2[2]
        y = line1[0] * x + line1[2]
    else:
        k1, _, b1 = line1
        k2, _, b2 = line2
        x = -(b1-b2)/(k1-k2)
        y = k1*x + b1
    return np.array([x, y], dtype=np.float32)