python CAD图形合并

python CAD二次开发通过代码实现两个相邻的图形合并成一个图形。

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##########合并图形#####################
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def cal_ang(point_1, point_2, point_3):
    print(point_1, point_2, point_3)
    """
    根据三点坐标计算夹角
    :param point_1: 点1坐标
    :param point_2: 点2坐标
    :param point_3: 点3坐标
    :return: 返回任意角的夹角值，这里只是返回点2的夹角
    """
    try:
        a=math.sqrt((point_2[0]-point_3[0])*(point_2[0]-point_3[0])+(point_2[1]-point_3[1])*(point_2[1] - point_3[1]))
        b=math.sqrt((point_1[0]-point_3[0])*(point_1[0]-point_3[0])+(point_1[1]-point_3[1])*(point_1[1] - point_3[1]))
        c=math.sqrt((point_1[0]-point_2[0])*(point_1[0]-point_2[0])+(point_1[1]-point_2[1])*(point_1[1]-point_2[1]))
        A=math.degrees(math.acos((a*a-b*b-c*c)/(-2*b*c)))
        B=math.degrees(math.acos((b*b-a*a-c*c)/(-2*a*c)))
        C=math.degrees(