The series index is the order of data series that the chart sees. If you
set the columns like this:
columns: [x, y, z]
x -> the domain column
y -> series 0
z -> series 1
If you set the columns like this:
columns: [z, x, y]
z -> the domain column
x -> series 0
y -> series 1
The chart has no knowledge of the column in your original DataTable; all it
sees is the DataView that you specify in the "view" parameter. You could
create a map of columns to colors like this:
var colorMap = ['red', 'green', 'blue'];
where colorMap[columnIndex] gives the color of the series. You can then
build the series option given a specific view:
var view = chartWrapper.getView();
var series = [];
for (var i = 1; i < view.columns.length; i++) {
series.push({
color: colorMap[view.columns[i]];
});
}
chartWrapper.setOption('series', series);
On Friday, May 16, 2014 9:20:40 AM UTC-4, cyb wrote:
>
> Hi,
>
> but if i set the series options like this:
>
> chartWrapper.setOption('series',{
>> 0: { color: 'red' },
>> 1: { color: 'green' },
>> 2: { color: 'blue' }
>> });
>
>
> and if i set my view like this :
>
> view : {columns: [2,0,1]}
>
> is then column 0 from my view column 1 in my series options ? or is
> column 0 from my view every time column 0 from the series options ?
>
> the problem is, i use checkboxes where users can click which xSeries the
> want to show.
>
> so one user selects the first time 2,1,0 and the colors are for example 1=
> green and 0=red then he deselects for example column 1 from the view so
> the new view array looks like this: view: {columns :[2,0]} and now i want
> that 0 is already red an not an other color..
>
> hope you understand what i mean..
>
>
> Am Montag, 5. Mai 2014 18:11:24 UTC+2 schrieb cyb:
>>
>> Hi,
>>
>> i use a chartWrapper to display different charts (Line,Colum,Area,Pie and
>> so on) and i can filter dates and numbers without any problem but if i
>> switch to discrete mode then the filtering did no longer work..
>>
>> i build the filter view for my DataWrapper like this:
>>
>> Data:
>>
>>> date,New York,San Francisco,Austin,Country
>>> 20111001,10,20,30,A
>>> 20111002,40,50,60,B
>>> 20111003,70,80,90,C
>>> 20111004,100,110,120,D
>>
>>
>> var dataTable=new google.visualization.DataTable(DATA);
>>> var filteredView ={columns : 1,2,3, rows :
>>> dataTable.getFilteredRows([{column:1, minValue: 40, maxValue: 70}])};
>>
>>
>> For example i want filter on the xAxis (New York) all values between 40
>> and 70.. this works if i have no discrete mode..
>>
>> but if i change the Column "New York" from type number to string (is this
>> the only method to activate the discrete mode? or is there an option where
>> i must not change the type ? ) the filtering did not work. I do the
>> switching to discrete mode like that:
>>
>> var View =[
>>> {
>>> type: 'string',
>>> label: dataTable.getColumnLabel(1),
>>> calc: function (dt, row) {
>>> return dt.getFormattedValue(row, 1);
>>> }
>>> }
>>> ];
>>> View .push.apply(View ,[2,3]); //Adds the values
>>> from a second array to the first array
>>> var newView={columns: View }; /
>>
>>
>>
>>
>> i have the same problem with the PieChart, there is per default the first
>> column a string so i can not do any filtering.
>>
>> how can i solve this problem ?
>>
>
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