Hi,
it seems the problem(see last post) is the pattern value that i have set in
the DataTable, if i remove this, the chart is diplayed correctly.. but in
my old implementation without the ChartWrapper my charts worked with the
pattern value with no problem`s.... Is there a workaround that i can set
the pattern value and the Date value is correct displayed !? or can i set a
customValue in the ColumDescription?
and second question.. as i mentioned in my other post i must sometimes
transforms the data type from "date" to "string" in my old implementation i
have do this like that:
var dataView = new google.visualization.DataView(dataTable);
> dataView.setColumns([{
> type: 'string',
> label: dataView.getColumnLabel(0),
> calc: function (dt, row) {
> return dt.getFormattedValue(row, 0);
> }
> }, 1]);
i have tried the same with a chartWrapper but it doesnt work.. what do i
wrong?
i have tried two approaches:
1.)
> var dataTable=new google.visualization.DataTable(DATA);
> var chartWrapperArgs = {
> chartType: "LineChart",
> dataTable: dataTable,
> view: {"columns":[ { type: 'string', label:
> dataTable.getColumnLabel(0), calc: function (dt, row) { return
> dt.getFormattedValue(row, 0); } }, 1 ]},
> options: options,
> containerId: "chart"]
> };
> var chartWrapper = new google.visualization.ChartWrapper(chartWrapperArgs);
and my second approache:
var dataTable=new google.visualization.DataTable(DATA);
> var dataView = new google.visualization.DataView(dataTable);
> dataView.setColumns([{
> type: 'string',
> label: dataView.getColumnLabel(0),
> calc: function (dt, row) {
> return dt.getFormattedValue(row, 0);
> }
> }, 1]);
>
> var ViewData= dataView.toJSON();
>
> var chartWrapperArgs = {
> chartType: "LineChart",
> dataTable: dataTable,
> view: ViewData,
> options: options,
> containerId: "chart"]
> };
> var chartWrapper = new google.visualization.ChartWrapper(chartWrapperArgs);
but both did not work..
can i not run a calc function with the chartWrapper ?
Am Sonntag, 27. April 2014 21:36:02 UTC+2 schrieb cyb:
>
> Hi,
>
> at the moment i use a switch case for changing different charts like this:
>
> var chart=null;
>> switch (chartType) {
>> case 1:
>> chart=new google.visualization.LineChart(id);
>>
>> break;
>> case 2:
>> chart=new google.visualization.ColumnChart(id);
>>
>> break;
>> }
>> chart.draw(...);
>
>
>
> i have only one chart object for all charts, if i add a error listener
> like this :
>
> google.visualization.events.addListener(chart, 'error', function (err)
> {.....});
>
> must i do this for every chart ? i mean an extra listener for the
> LineChart and one for the ColumChart or can i only create one listener with
> the chart object?
>
>
> or is it better to use a chartWrapper ? if i use a chart wrapper i can add
> only this chartwarapper to the error handler !?
>
> and last question.. the chartWrapper loads the charts dynamicly, but if i
> add this in my code "google.load("visualization", "1", {packages:["table",
> "controls", "corechart","geomap","geochart"]});"
> did the charWrapper then load the charts from my HDD(because the charts
> already loaded) or did he trys to load the charts form the internet ?
>
>
>
>
>
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