private void init() {
        addCircle(450,180,150,Direction.CCW);
        addCircle(450,180,100,Direction.CW);
        addCircle(450,180,50,Direction.CCW);
        moveTo(450,180);
        lineTo(600,330);
    }
author : totond
e-mail : yanzhikai_yjk@qq.com
time   : 2018/03/13
desc   :
app/src/main/java/yanzhikai/textpathview/TestPath.java