jcharts-users

[jCharts-users] Cant we put data dynamically in to arrays while working with JCharts??????

[Sreemannarayana <sp...@os...>]

I am working with simple Bar charts, JSP, Tomcat.=20
I am passing the data of type "Double[][]" from Jsp-page-1 jsp-page-2
through "Session".
In jsp-page-2, I have written code for bar graph.
So in jsp-page-2 I am taking the data (of type Double[][]) from session
and putting in to an array of type "double[][]".=20
=20
// Double[][] m_tmpdata , this passed through session.
double[][] m_data =3D new double[m_tmpdata.length][m_tmpdata[0].length];
for(int i=3D0; i<m_tmpdata.length; i++)
{
            for(int j=3D0; j<m_tmpdata[0].length; j++)
            {
                        m_data[i][j]=3Dm_tmpdata[i][j].doubleValue();
            }
}
=20
 Paint[] m_paints =3D TestDataGenerator.getRandomPaints(1) // since its
simple bar charts.
=20
 The above code is not working.
 It=92s giving exception like:=20
     "There is not an one to one mapping of "Paint" implementation to
"data sets".
=20
     Why am I getting this problem.?????
=20
     If I write the code like as follows its working fine:
=20
 Double [][] m_data =3D {{m_tmpdata[0][0].doubleValue(),
m_tmpdata[1][0].doubleValue()}};
=20
=20
Please Help me.
=20
Thanks and regards.

Re: [jCharts-users] Cant we put data dynamically in to arrays while working with JCharts??????

[Nathaniel G. A. <nat...@ya...>]

that works for me. I just made a chart from:


BarChartProperties barChartProperties = new BarChartProperties();

Double[][] m_tmpdata= new Double[][]{ { new Double(10), new Double(15) } };
double[][] m_data = new double[m_tmpdata.length][m_tmpdata[0].length];
for(int i=0; i<m_tmpdata.length; i++)
{
	for(int j=0; j<m_tmpdata[0].length; j++)
	{
		m_data[i][j]=m_tmpdata[i][j].doubleValue();
	}
}

Paint[] paints = {Color.green};
String[] legendLabels = {"Test Legend Label"};
AxisChartDataSet axisChartDataSet = new AxisChartDataSet( m_data, legendLabels, paints,
ChartType.BAR, barChartProperties );

String[] axisLabels = {"1900", "2000" };
IAxisDataSeries dataSeries = new DataSeries( axisLabels, "Wonka Bars", "Years", "Oompa Loompa
Productivity" );
dataSeries.addIAxisPlotDataSet( axisChartDataSet );

ChartProperties chartProperties = new ChartProperties();
AxisProperties axisProperties = new AxisProperties( true );

axisProperties.getYAxisProperties().setShowGridLines( AxisTypeProperties.GRID_LINES_NONE );
axisProperties.getYAxisProperties().setAxisStroke( new ChartStroke( new BasicStroke( 1.5f ),
Color.red ) );

DataAxisProperties yAxis = (DataAxisProperties) axisProperties.getXAxisProperties();
LegendProperties legendProperties = null;

AxisChart axisChart = new AxisChart( dataSeries, chartProperties, axisProperties,
legendProperties, 500, 400 );



--- Sreemannarayana <sp...@os...> wrote:
> I am working with simple Bar charts, JSP, Tomcat. 
> I am passing the data of type "Double[][]" from Jsp-page-1 jsp-page-2
> through "Session".
> In jsp-page-2, I have written code for bar graph.
> So in jsp-page-2 I am taking the data (of type Double[][]) from session
> and putting in to an array of type "double[][]". 
>  
> // Double[][] m_tmpdata , this passed through session.
> double[][] m_data = new double[m_tmpdata.length][m_tmpdata[0].length];
> for(int i=0; i<m_tmpdata.length; i++)
> {
>             for(int j=0; j<m_tmpdata[0].length; j++)
>             {
>                         m_data[i][j]=m_tmpdata[i][j].doubleValue();
>             }
> }
>  
>  Paint[] m_paints = TestDataGenerator.getRandomPaints(1) // since its
> simple bar charts.
>  
>  The above code is not working.
>  It’s giving exception like: 
>      "There is not an one to one mapping of "Paint" implementation to
> "data sets".
>  
>      Why am I getting this problem.?????
>  
>      If I write the code like as follows its working fine:
>  
>  Double [][] m_data = {{m_tmpdata[0][0].doubleValue(),
> m_tmpdata[1][0].doubleValue()}};
>  
>  
> Please Help me.
>  
> Thanks and regards.
> 


=====
http://nathaniel-auvil.blog-city.com/

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