Canvas drawCircle 圆心坐标问题

public class BasisView extends View {
    public BasisView(Context context) {
        super(context);
    }


    public BasisView(Context context, @Nullable AttributeSet attrs) {
        super(context, attrs);
    }


    public BasisView(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
    }


    @Override
    protected void onDraw(Canvas canvas) {
        super.onDraw(canvas);
        Paint paint = new Paint();
        paint.setColor(Color.RED);
        paint.setStyle(Paint.Style.STROKE);
        paint.setStrokeWidth(10);
        canvas.drawCircle(65,65,60,paint);
    }
}

圆心的坐标点为：radius+sroke/2，即 60+10/2；原始半径是只包含了描边的1/2.