| Problem with creating radar chart [message #890564] |
Fri, 22 June 2012 15:18  |
 hage Mising name
Messages: 67
Registered: September 2011 |
Member |
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Hi there,
i'm trying to use a radarchart in my report. I pass a List<Double> to the Radar Value Definition (via a row of a dataset) and a List<String> to the Category Definition. When trying to run the report via the Preview within the designer, i get :
Caused by: java.lang.NullPointerException
at org.eclipse.birt.chart.examples.radar.render.Radar.getDsMinMax(Radar.java:176)
using the report engine integrated in my application i get:
Caused by: java.lang.NullPointerException
at org.eclipse.birt.chart.reportitem.ChartReportItemImpl.validate(ChartReportItemImpl.java:836)
(i'm using birt 3.7.0)
can anyone tell me, what i'm missing / doing wrong here? (or tell me what is that dsMinMax thing? is "ds" the dataSeries? the DataSet? I didn't find anything on google searching this
thx in advance,
hage
[Updated on: Fri, 22 June 2012 15:19] Report message to a moderator |
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| Re: Problem with creating radar chart [message #890602 is a reply to message #890564] |
Fri, 22 June 2012 16:02  |
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Can you try to recreate the issue with a sample report that we can run
and test? If so post it here.
Jason
On 6/22/2012 11:18 AM, hage Mising name wrote:
> Hi there,
> i'm trying to use a radarchart in my report. I pass a List<Double> to
> the Radar Value Definition (via a row of a dataset) and a List<String>
> to the Category Definition. When trying to run the report via the
> Preview within the designer, i get :
>
>
> Caused by: java.lang.NullPointerException
> at
> org.eclipse.birt.chart.examples.radar.render.Radar.getDsMinMax(Radar.java:176)
>
>
>
> using the report engine integrated in my application i get:
>
>
> Caused by: java.lang.NullPointerException
> at
> org.eclipse.birt.chart.reportitem.ChartReportItemImpl.validate(ChartReportItemImpl.java:836)
>
>
>
> (i'm using birt 3.7.0)
>
> can anyone tell me, what i'm missing / doing wrong here?
>
> thx in advance,
>
> hage
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| Re: Problem with creating radar chart [message #892176 is a reply to message #890602] |
Wed, 27 June 2012 09:59 |
hage Mising name
Messages: 67
Registered: September 2011 |
Member |
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after some debugging with the sources:
(ChartReportItemImpl.java, method valide(), lines 833-840)
SD: for ( SeriesDefinition vsd : ysds )
{
Series series = vsd.getDesignTimeSeries( );
if ( series.getDataDefinition( ).size( ) == 0 )
{
list.add( yException );
break SD;
}
(SeriesDefinitionImpl.java, lines 1076-1088)
public final Series getDesignTimeSeries( )
{
final EList el = getSeries( );
Series se;
for ( int i = 0; i < el.size( ); i++ )
{
se = (Series) el.get( i );
if ( se.getDataSet( ) == null )
{
return se;
}
}
return null;
(SeriesDefinitionImpl.java, lines 1076-1088)
the "getDesignTimeSeries()" mentioned above returns "null", because getSeries() returns an emtpy list here
The object "series" is described as:
The cached value of the '{@link #getSeries() <em>Series</em>}' containment reference list.
and never being set within the class.
So, this tells me, that i am missing something in my chart definition, right? Since i defined a series for x and y axis each, i don't know what i am missing here exactly. Any help appreciated.
[Updated on: Wed, 27 June 2012 10:08] Report message to a moderator |
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