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Tagged: beforeLoadComplete, chart, data adapter, dataadapter, datafield, incremental, jqxChart, JSONP, valueAxis, x-axis

This topic contains 6 replies, has 2 voices, and was last updated by Dimitar 10 years, 11 months ago.

Viewing 7 posts - 1 through 7 (of 7 total)

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line chart Posts

March 26, 2014 at 8:57 am line chart #51914

lev_povolotsky

Participant

I would like to create line chart that will get data from datatype jsonp but the issue is that I just retrieve the Y Axis data and I would like that X Axis value will grow in 1 according to each point.

Can you give me an example how to do that?

March 26, 2014 at 10:33 am line chart #51928

Dimitar

Participant

Hello lev_povolotsky,

Here is an example on how to achieve this (notice the beforeLoadComplete data dapter callback function):

<!DOCTYPE html>
<html lang="en">
<head>
    <link rel="stylesheet" href="../../jqwidgets/styles/jqx.base.css" type="text/css" />
    <script type="text/javascript" src="../../scripts/jquery-1.10.2.min.js"></script>
    <script type="text/javascript" src="../../jqwidgets/jqxcore.js"></script>
    <script type="text/javascript" src="../../jqwidgets/jqxdata.js"></script>
    <script type="text/javascript" src="../../jqwidgets/jqxchart.js"></script>
    <script type="text/javascript">
        $(document).ready(function () {
            // prepare the data
            var source =
            {
                datatype: "json",
                datafields: [
                    { name: 'max' }
                ],
                url: '../sampledata/weather_geneva.txt'
            };

            var dataAdapter = new $.jqx.dataAdapter(source, { async: false, autoBind: true, beforeLoadComplete: function (records) {
                for (var i = 0; i < records.length; i++) {
                    records[i].xAxis = i;
                };
                return records;
            }, loadError: function (xhr, status, error) { alert('Error loading "' + source.url + '" : ' + error); }
            });

            // prepare jqxChart settings
            var settings = {
                title: "Weather in Geneva, Switzerland",
                description: "Climatological Information about Geneva",
                enableAnimations: true,
                showLegend: true,
                padding: { left: 5, top: 5, right: 5, bottom: 5 },
                titlePadding: { left: 90, top: 0, right: 0, bottom: 10 },
                source: dataAdapter,
                categoryAxis:
                    {
                        text: 'Category Axis',
                        textRotationAngle: 0,
                        dataField: 'xAxis',
                        showTickMarks: true,
                        tickMarksInterval: 1,
                        tickMarksColor: '#888888',
                        unitInterval: 1,
                        showGridLines: true,
                        gridLinesInterval: 3,
                        gridLinesColor: '#888888',
                        axisSize: 'auto'
                    },
                colorScheme: 'scheme05',
                seriesGroups:
                    [
                        {
                            type: 'line',
                            //useGradient: false,
                            valueAxis:
                            {
                                unitInterval: 5,
                                displayValueAxis: true,
                                description: 'Temperature [C]',
                                //descriptionClass: 'css-class-name',
                                axisSize: 'auto',
                                tickMarksColor: '#888888'
                            },
                            series: [
                                    { dataField: 'max', displayText: 'Max Temperature' }
                                ]
                        }
                    ]
            };

            // setup the chart
            $('#jqxChart').jqxChart(settings);

        });
    </script>
</head>
<body class='default'>
    <div id='jqxChart' style="width: 850px; height: 400px">
    </div>
</body>
</html>

Best Regards,
Dimitar

jQWidgets team
http://www.jqwidgets.com/

March 26, 2014 at 2:53 pm line chart #51967

lev_povolotsky

Participant

I made exactly the same as you made from the only thing is that I take the data from jsonp

but the only Axis is filled in really strange, please tell me what do you recommend me to do?

 $(document).ready(function () {
            // prepare the data
            var source =
            {
                dataType: "jsonp",
                datafields: [
                    { name: 'max' }
                ],
                url: "http://localhost:9998/test"
            };

            var dataAdapter = new $.jqx.dataAdapter(source, { async: false, autoBind: true, beforeLoadComplete: function (records) {
                for (var i = 0; i < records.length; i++) {
                    records[i].xAxis = i;
                    console.log(records[i].xAxis);
                    console.log(records[i].yAxis);
                };
                return records;
            }, loadError: function (xhr, status, error) { alert('Error loading "' + source.url + '" : ' + error); }
            });

            // prepare jqxChart settings
            var settings = {
                title: "Weather in Geneva, Switzerland",
                description: "Climatological Information about Geneva",
                enableAnimations: true,
                showLegend: true,
                padding: { left: 5, top: 5, right: 5, bottom: 5 },
                titlePadding: { left: 90, top: 0, right: 0, bottom: 10 },
                source: dataAdapter,
                categoryAxis:
                {
                    text: 'Category Axis',
                    textRotationAngle: 0,
                    dataField: 'xAxis',
                    showTickMarks: true,
                    tickMarksInterval: 50,
                    tickMarksColor: '#888888',
                    unitInterval: 50,
                    showGridLines: true,
                    gridLinesInterval: 50,
                    gridLinesColor: '#888888',
                    axisSize: 'auto'
                },
                colorScheme: 'scheme05',
                seriesGroups:
                        [
                            {
                                type: 'line',
                                //useGradient: false,
                                valueAxis:
                                {
                                    unitInterval: 5,
                                    displayValueAxis: true,
                                    description: 'Temperature [C]',
                                    //descriptionClass: 'css-class-name',
                                    axisSize: 'auto',
                                    tickMarksColor: '#888888'
                                },
                                series: [
                                    { dataField: 'max', displayText: 'Max Temperature' }
                                ]
                            }
                        ]
            };

March 27, 2014 at 6:14 am line chart #52006

Dimitar

Participant

Hi lev_povolotsky,

Does this mean the x-axis is not populated? And are you sure the values in your data source correspond to the chart settings (such as unitInterval)?

Best Regards,
Dimitar

jQWidgets team
http://www.jqwidgets.com/

March 27, 2014 at 9:22 am line chart #52032

lev_povolotsky

Participant

Seems you are right I get from jsonp a lot of big numbers this is the results the only diffrent is instead of null I have a callback
null({"totalrecords":302,"allPoints":[27726312,27726312,27726312,27726312,27726312,27726312,27726312,27726312,27726312,27726312,27726312,27726312,27726312,27726312,27726312,27726312,27726312,27726312,27726312,27726312,27726312,27726312,27726312,27726312,27726312,27726312,27726312,27726312,27726312,27726312,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,27041040,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,26355672,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,25669456,24984232,24984232,24984232,24984232,24984232,24984232,24984232,24984232,24984232,24984232,24984232,24984232,24984232,24984232,24984232,24984232,24984232,24984232,24984232,24984232,24984232,24984232,24984232,24984232,24984232,24984232,24984232,24984232,24984232,24984232,24984232,24984232,24984232,24984232,24984232,24984232,24984232,24984232,24984232,24984232,24984232,24177928,21879984,20267376,18923536,17310928,15698320,13386912,11774304,9463040,8119200,4450880,61803936,53742576,45681216,37619816,29558456,22840656,10748608,10748608,10748608,10748608,10748608,10748608]});

March 30, 2014 at 6:01 am line chart #52176

lev_povolotsky

Participant

anyone that can help me

March 31, 2014 at 5:15 am line chart #52202

Dimitar

Participant

Hi lev_povolotsky,

You should adjust the valueAxis settings to be appropriate for your data. You can find the available properties in the jqxChart API Documentation.

Best Regards,
Dimitar

jQWidgets team
http://www.jqwidgets.com/

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