Annotation chart: Could it be possible to reverse the Y-axis?

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Le Hung

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Feb 12, 2016, 12:44:06 AM2/12/16
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Hello,

I am working with the project that need Annotation Chart to show my data. And I have a problem like below.

My problem:
I would like to show the reverse value on the Y-axis.
What I mean is: the bigger the value is down and vice versa (the smaller the value is up)

I try to test all the option at the support docs but it still did not work

Option:
...
 vAxis: {direction: -1} // This works on line chart but not annotation chart
...
or somethings like
...
max: -200000,
min: 200000
...

This is my test code that forked from the docs page

Could anyone help me to answer my problem? (Could it be possible to reverse the Y-axis now and later?)

Thank you very much


Daniel LaLiberte

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Feb 12, 2016, 8:33:55 AM2/12/16
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Yes, you can reverse the vertical axis by putting options for the main chart under 'chart'.  I updated your jsfiddle to do that:  https://jsfiddle.net/dlaliberte/dsmgL9wj/3/

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Le Hung

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Feb 14, 2016, 11:06:35 PM2/14/16
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Problem solved. Thank you very much.

*P.S. Just wonder that is there any update on the API or just the syntax
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Daniel LaLiberte

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Feb 15, 2016, 11:02:50 AM2/15/16
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I'm not sure what you are asking in your PS.  We didn't update the API to support what you were asking for.  We do need to update the documentation to mention this 'chart' option.

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LeHung

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Feb 15, 2016, 5:05:50 PM2/15/16
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It is just a curiousity. Thank you.

*The problem is solved and sorry for a confusing. 

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Le Hung

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Feb 19, 2016, 12:21:58 AM2/19/16
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Hello Daniel,

I think the reverse on Y-axis did not work on the small graph below. Just in case, I add the screenshot below.
Thank you.
Hung

 

Daniel LaLiberte

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Feb 19, 2016, 8:41:53 AM2/19/16
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To give options to the range selector, you need to put them under 'range', and use the ChartRangeFilter options: https://developers.google.com/chart/interactive/docs/gallery/controls#chartrangefilter   So like this:

var options = {
  ...
  range: {
    ui: {
      chartOptions: {
        vAxis: { direction: -1 }
      }}}
}

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LeHung

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Feb 19, 2016, 6:58:21 PM2/19/16
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Yes, it worked. Thank you very much

P.S. I updated the code here
https://jsfiddle.net/lecaoquochung/dsmgL9wj/15/

Creative Givery

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Feb 29, 2016, 4:03:04 AM2/29/16
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Hi Daniel,

The Annotation Chart dit not work. I found that the error is occured today.
Is there any update with the API?

Thank you





Daniel LaLiberte

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Feb 29, 2016, 8:52:38 AM2/29/16
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Try flushing your browser cache, or change 'current' to '44'.

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LeHung

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Feb 29, 2016, 8:41:41 PM2/29/16
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It worked. Thank you

P.S. Memo
Update: google.charts.load('44', {'packages':['annotationchart'], 'language': 'ja'});

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