Thanks i fixed the issue Gauge chart doesnt always require 2 columns if a
single column is given the column label will be the label for the gauge
chart.
Also i had missed the brackets around in setColumns.
*dataView2.setColumns([6]);*
On Wednesday, 12 February 2014 21:15:24 UTC+1, asgallant wrote:
>
> I think your problem is with this line:
>
> dataView2.setColumns(6);
>
> The setColumns method takes an array of column indices, and the Gauges
> require two columns of data, not one. There should be one string and one
> number type:
>
> dataView2.setColumns([<string column>, <number column>]);
>
> Incidentally, you don't need to convert the view to a DataTable unless you
> have some specific need to do so; the chart will draw just fine using the
> view:
>
> GaugeChart.draw(dataView2,{width: 400, height: 250,redFrom: 18, redTo:
> 20,yellowFrom:15, yellowTo: 17,minorTicks: 5,min: 1,max:
> 20,animation:{duration: 400,easing: 'linear'}});
>
> On Wednesday, February 12, 2014 2:08:02 PM UTC-5, Ashok Kumar wrote:
>>
>> It displays the entire datatable. Attached the screenshot of the browser
>> javascript console for reference.
>>
>>
>>
>> On Wednesday, 12 February 2014 16:56:22 UTC+1, asgallant wrote:
>>>
>>> In the handleGaugeResponse function, add this line:
>>>
>>> console.dir(response);
>>>
>>> then open the page in Chrome or Firefox, and open the developer's
>>> console (ctrl+shift+j to open in Chrome, ctrl+shift+k to open in Firefox).
>>> What is output by the console.dir call? You may need to refresh the
>>> page after opening the console.
>>>
>>> On Wednesday, February 12, 2014 10:18:04 AM UTC-5, Ashok Kumar wrote:
>>>>
>>>> Hi,
>>>>
>>>> I have a requirement to get the value of column 6 from always the last
>>>> row of a CSV file and display that value as a gauge chart. I have written
>>>> the below code for this requirement however this does seem to display the
>>>> graph.
>>>>
>>>> <!DOCTYPE html>
>>>> <html>
>>>> <head>
>>>> <title>Google Chart Example</title>
>>>> <script src="https://www.google.com/jsapi";></script>
>>>> <script src="http://code.jquery.com/jquery-1.10.1.min.js";></script>
>>>> <script src="http://localhost/jquery.csv-0.71.js";></script>
>>>> <script type="text/javascript">
>>>> google.load("visualization", "1", {packages:["corechart" ,
>>>> "gauge"]});
>>>> //google.load("visualization", "1", {packages:["gauge"]});
>>>> </script>
>>>> <script>
>>>> function Initalize()
>>>> {
>>>> drawGauge();
>>>> }
>>>> function drawGauge()
>>>> {
>>>> var queryOptions =
>>>> {
>>>> csvColumns:
>>>> ['string','string','string','string','string','number','number','number','string','string','string','number','string','string','string','string'],
>>>>
>>>> csvHasHeader: true
>>>> }
>>>> csvUrl= 'http://localhost/output.csv';
>>>> var query = new google.visualization.Query(csvUrl,queryOptions);
>>>> query.send(handleGaugeResponse);
>>>> function handleGaugeResponse(response)
>>>> {
>>>> if (response.isError())
>>>> {
>>>> alert('Error in query: ' + response.getMessage() + ' ' +
>>>> response.getDetailedMessage());
>>>> return;
>>>> }
>>>> var GaugeData = response.getDataTable();
>>>> var RowId = GaugeData.getNumberOfRows()-1;
>>>> var dataView2 = new google.visualization.DataView(GaugeData);
>>>> //console.log(RowId);
>>>> dataView2.setRows([RowId]);
>>>> dataView2.setColumns(6);
>>>> var FilteredView = dataView2.toDataTable();
>>>> var GaugeChart = new
>>>> google.visualization.Gauge(document.getElementById('gaugechart'));
>>>> GaugeChart.draw(FilteredView,{width: 400, height: 250,redFrom: 18,
>>>> redTo: 20,yellowFrom:15, yellowTo: 17,minorTicks: 5,min: 1,max:
>>>> 20,animation:{duration: 400,easing: 'linear'}});
>>>> }
>>>> }
>>>> google.setOnLoadCallback(Initalize);
>>>> </script>
>>>> </head>
>>>> <body>
>>>> <div id="chart"></div>
>>>> <div id="gaugechart">test</div>
>>>> </body>
>>>> </html>
>>>>
>>>> Find below the CSV file format with one sample row.
>>>>
>>>> Component Version Day Date Time Logging Type Keys in Usage Usage Time
>>>> User
>>>> Name Host LMLibVer License Used FunctionalTesting
>>>> Mon ######## 14:58:15 0 1 0 XXX XXX8.3.0.900 1 - -
>>>>
>>>> - - -
>>>>
>>>
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