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Use Date XAxis at Bar Chart Options · View
emoney
#1 Posted : Friday, March 08, 2013 4:47:29 PM
Rank: Newbie

Groups: Registered

Joined: 3/8/2013
Posts: 1
Location: Dublin
Hi,

I'd like to use aiChart Control to build a bar/stackedbar chart.

With YAxis is category and XAxis is datetime.

I've tried to changed the code from aiCharts.DateTime sample.
But can not figure out the solution.
And the diagram attached.

Anyone can help?

Code:

    ChartSeries series1 = new ChartSeries("Series 1", ChartTypes.Bar);
        ChartSeries series2 = new ChartSeries("Series 2", ChartTypes.Bar);
        
        ChartPointCollection series1Points = series1.getPoints();
        ChartPointCollection series2Points = series2.getPoints();
        // Getting current time
        Date xDate = GregorianCalendar.getInstance().getTime();
        Random r = new Random();
        for(int i = 0; i < 4; i++)
        {
            xDate.setMonth(i);
            series1Points.addDate(xDate, r.nextDouble());
            series2Points.addDate(xDate, r.nextDouble());
        }
        
        chart.getAreas().add(area);
        chart.getSeries().add(series1);
        chart.getSeries().add(series2);
        series1.setArea(area.getName());
        series2.setArea(area.getName());
        ChartAxis axis = area.getDefaultXAxis();
        axis.setLabelFormat(new SimpleDateFormat("MMM, dd"));
        axis.setValueType(ChartAxis.ValueType.Date);
        axis.setLabelsAdapter(ChartAxis.SERIES_LABELS_ADAPTER);
emoney attached the following image(s):
barGraphMockup.jpg (65kb) downloaded 18 time(s).
Baydalka Volodymyr
#2 Posted : Wednesday, March 13, 2013 10:46:21 AM
Rank: Developers Team


Groups: Registered, Administrators

Joined: 7/28/2009
Posts: 447
Hi,

Check the sample:

Code:
ChartView chartView = new ChartView(this);

ChartArea chartArea = new ChartArea();
ChartSeries series = new ChartSeries(ChartTypes.Bar);
Calendar calendar = Calendar.getInstance();

calendar.clear();

for (int i = 1; i <= 4; i++)
{
    calendar.set(2013, 3, 3 + i);
    
    series.getPoints().addXY(i, calendar.getTimeInMillis()).setAxisLabel("Vehicle" + i);
}

calendar.set(2013, 3, 1);

chartArea.getDefaultYAxis().setLabelsAdapter(ChartAxis.SERIES_LABELS_ADAPTER);
// Y values - contains date
chartArea.getDefaultXAxis().setValueType(ValueType.Date);
// start bars from lower axis value
chartArea.getDefaultXAxis().setOrigin(Double.NEGATIVE_INFINITY);
// setup start value
chartArea.getDefaultXAxis().getScale().setMinimum((double) calendar.getTimeInMillis());

chartView.getAreas().add(chartArea);
chartView.getSeries().add(series);

setContentView(chartView);


Best regards,
Volodymyr Baydalka
Andriod development and support team
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