The Visualization API does not have any date-string input parsing tools
like the d3 parser you linked to. If that parser works for you, go ahead
and use it.
On Friday, April 4, 2014 8:26:23 AM UTC-4, cyb wrote:
>
> Hi,
>
>
> i want implement a Date Filter for the X-Axis so i think i need the
> Date-Strings as a Date object.
>
> If i have something like this:
>
> var data = new google.visualization.arrayToDataTable([
>> ['date','column1','column2'],
>> [20111001,2,3],
>> [20111002,5,6],
>> [20111003,8,9],
>> [20111004,11,12] ]);
>>
>
> or this..
>
> var data = new google.visualization.arrayToDataTable([
> ['date','column1','column2'],
> [2011-10-01,2,3],
> [2011-10-02,5,6],
> [2011-10-03,8,9],
>
>> [2011-10-04,11,12] ]);
>
>
>
> i must parse this values to Date Object so i need first a parser for that,
> or is there an other way to implement a Date Filter.. and yes the users can
> upload different Date Formats
>
> I want then implement the Date Filter like this :
> view.setRows(view.getFilteredRows([{column:
> 1, minValue: new Date(2011, 10, 2),maxValue :new Date(2011,10,4)}]));
>
> So i must first parse the date string in a Date Object..
>
> or can i use the D3 parser for that ? (
> https://github.com/mbostock/d3/wiki/Time-Formatting)
>
> var format = d3.time.format("%Y-%m-%d");format.parse("2011-01-01"); //
> returns a Dateformat(new Date(2011, 0, 1)); // returns a string
>>
>> the user should only define the parser-pattern like "%Y-%m-%d" and he
> must say in which column are the date strings.
>
> or has google charts something similar ?
>
> Best regards
> Am Montag, 24. März 2014 17:03:13 UTC+1 schrieb cyb:
>>
>> Hi,
>>
>> i have the following code:
>>
>>
>> var data = new google.visualization.arrayToDataTable([
>> ['date','column1','column2'],
>> [20111001,2,3],
>> [20111002,5,6],
>> [20111003,8,9],
>> [20111004,11,12] ]);
>>
>>
>> var dataView = new google.visualization.DataView(data);
>>
>> var chart = new
>> google.visualization.LineChart(document.getElementById('chart_div'));
>>
>> chart.draw(dataView, options);
>>
>>
>> This draws me a line chart but if i replace the LineChart with this:
>> chart = new
>> google.visualization.PieChart(document.getElementById('chart_div'));
>> i get this error: "Pie chart should have a first column of type string"
>> What is now the best an easiest way to convert the data from a line in a
>> pie chart? I want switch between a pie and a line chart and all should use
>> the same data-array. Or can i disable the check that the first value must
>> be a string !?
>> And then i want select different values with dataView.setColumns(); so
>> that i can determine which data is showing in my chart.
>>
>> And second question can i convert the date- column to a real date !?
>> 20111001 is Year 2011 Month: 10 and Day: 01 ?
>>
>>
>>
>> Best regards cyb
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
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