Google visualization Google图表API（已弃用）显示垂直y轴标签

我知道我使用的GoogleChartAPI已被弃用，但不能用最新的API替换。我想将y轴标签更改为垂直打印。我该怎么做

以下是Google图表API URL：

http://chart.apis.google.com/chart?chtt=Visual+acuity+change+from+BVD+to+6+months&chco=00aa00,0000aa,aaaa00,aa6600,aa0000,000000&chxt=x,y,x,y&chxr=0,0,6,1|1,-50,50,5&chxl=2:|Time%20(months)|3:|LogMAR%20Letters&chg=0,50,1,0&chm=o,00aa00,0,-1,4.0|o,0000aa,1,-1,4.0|o,aaaa00,2,-1,4.0|o,aa6600,3,-1,4.0|o,000000,4,-1,4.0|d,000000,5,-1,8.0&chma=|5,100&chs=800x340&cht=lxy&chd=e:AAKPVHgAqP1H..,gApmq4szszszsz,AAKPVHgAqP1H..,gAlHmZnCnCnCoU,AAKPVHgAqP1H..,gAhxi2jSi4i2jN,AAKPVHgAqP1H..,gAfXgAgAfXeufX,AAKPVHgAqP1H..,gAa4bha4ZmZmZm,AAKPVHgAqP1H..,gAh6mLjMjMjMjm&chdl=FRB!%20Users%20Top%2010%25|FRB!%20Users%20Top%2025%25|FRB!%20Users%20Average|FRB!%20Users%20Bottom%2025%25|FRB!%20Users%20Bottom%2010%25|Doctor%20Doctor's%20Patients&chls=2|2|2,6,3|2|2|5

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很抱歉，这并不能解决我的问题。我需要的图形是在正常的方向，因为它是现在，但如果y轴标签可以打印垂直而不是水平。

    use this link 
    http://psychopyko.com/tutorial/how-to-use-google-charts/
    http://chart.apis.google.com/chart?
cht=bhg&chs=550x230&chd=t:100,50,115,80&
chxt=x,y&chxl=1:|Python|Java|Ruby|.NET&
chxr=0,0,120&chds=0,120&
chco=4D89F9&
chbh=35,0,15&
chg=8.33,0,5,5