Re: RE: Scale of a Xaxis NullPointerException

Can you attach your code with the data? 




--- [email protected] wrote:

> here is the stacktrace
> 
> 
> java.lang.NullPointerException
> render
> org.jCharts.axisChart.axis.XAxis
> -1
> renderChart
> org.jCharts.axisChart.AxisChart
> -1
> render
> org.jCharts.Chart
> -1
> render
> org.jCharts.encoders.BinaryEncoderUtil
> -1
> encode
> org.jCharts.encoders.JPEGEncoder13
> -1
> getGraphe
> com.GrapheScatter
> 308
> main
> com.EssaiGrpahe
> 46
> null
> null
> 
> i use this code for see them
> 
> System.out.println(f.getClass().getName());
>              StackTraceElement stcak[]=f.getStackTrace();
>              for (int t=0;t<stcak.length;t++)
>              {
>                   System.out.println(stcak[t].getMethodName());
>                   System.out.println(stcak[t].getClassName());
>                   System.out.println(stcak[t].getLineNumber());
>              }
>              System.out.println(f.getMessage());
>              System.out.println(f.getLocalizedMessage());
> 
> >Message: 2
> >Date: Wed, 01 Sep 2004 03:49:22 -0400
> >From: [email protected]
> >To: [email protected]
> >Subject: [jCharts-users] Scale of a Xaxis NullPointerException
> >Reply-To: [email protected]
> >
> >I don't know why i have a NullPointerException when i use the jpeg encoder
> >Is there anaone could help me.....
> >It is always the same problem with the scale of the xaxis on a point chart
> >
> >
> >DataAxisProperties x=new DataAxisProperties();
> >    DataAxisProperties y=new DataAxisProperties();
> >    
> >    
> >    
> >    //DataAxisProperties datatry = (DataAxisProperties)axisProperties.getXAxisProperties();
> >    x.setNumItems(this.intervalle);
> >    x.setUserDefinedScale(0,24);
> >    x.setRoundToNearest(0);
> >    
> >    //DataAxisProperties dataAxisProperties= (DataAxisProperties)
> axisProperties.getYAxisProperties();
> >    //calcul de la meilleur echelle possible
> >    int n=(int)Math.ceil(new Double(String.valueOf(this.valeurMax/100)).doubleValue());
> >    y.setNumItems(n+2);
> >    y.setUserDefinedScale( 0, 100 );
> >    y.setRoundToNearest( 0 );
> > 
> >    
> >    AxisProperties axisProperties= new AxisProperties((LabelAxisProperties)x,y);
> >    
> >    //ligne pour le cadrillage
> >    ChartStroke xAxisGridLines= new ChartStroke( new BasicStroke( 0.5f ), Color.GRAY );
> >    axisProperties.getXAxisProperties().setGridLineChartStroke( xAxisGridLines );
> >    axisProperties.getXAxisProperties().setShowGridLines(
> AxisTypeProperties.GRID_LINES_ONLY_WITH_LABELS);
> >    axisProperties.getXAxisProperties().setShowTicks( AxisTypeProperties.TICKS_NONE );
> >    axisProperties.getXAxisProperties().setPaddingBetweenAxisAndLabels(5.0f);
> >   
> >    
> >    //generation finale
> >    AxisChart axisChart= new AxisChart( dataSeries, chartProperties, axisProperties,null, 700,
> 500 );
> >    
> >   
> >   // axisChart.xAxis=new XAxis(axisChart,this.intervalle);
> >    
> >     try{
> >          JPEGEncoder13.encode(axisChart,1.0f,new
> FileOutputStream(prop.getProperty("GRAPHE")+chemin+".jpg"));
> >            }
> >
> >__________________________________________________________________
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> >
> >Message: 6
> >Date: Wed, 1 Sep 2004 19:51:29 -0700 (PDT)
> >From: "Nathaniel G. Auvil" <[email protected]>
> >Subject: Re: [jCharts-users] Scale of a Xaxis NullPointerException
> >To: [email protected]
> >Reply-To: [email protected]
> >
> >
> >can you attach the stacktrace?
> >
> >
> >
> >--- [email protected] wrote:
> >
> >> I don't know why i have a NullPointerException when i use the jpeg encoder
> >> Is there anaone could help me.....
> >> It is always the same problem with the scale of the xaxis on a point chart
> >> 
> >> 
> >> DataAxisProperties x=new DataAxisProperties();
> >>     DataAxisProperties y=new DataAxisProperties();
> >>     
> >>     
> >>     
> >>     //DataAxisProperties datatry = (DataAxisProperties)axisProperties.getXAxisProperties();
> >>     x.setNumItems(this.intervalle);
> >>     x.setUserDefinedScale(0,24);
> >>     x.setRoundToNearest(0);
> >>     
> >>     //DataAxisProperties dataAxisProperties= (DataAxisProperties)
> >> axisProperties.getYAxisProperties();
> >>     //calcul de la meilleur echelle possible
> >>     int n=(int)Math.ceil(new Double(String.valueOf(this.valeurMax/100)).doubleValue());
> >>     y.setNumItems(n+2);
> >>     y.setUserDefinedScale( 0, 100 );
> >>     y.setRoundToNearest( 0 );
> >>  
> >>     
> >>     AxisProperties axisProperties= new AxisProperties((LabelAxisProperties)x,y);
> >>     
> >>     //ligne pour le cadrillage
> >>     ChartStroke xAxisGridLines= new ChartStroke( new BasicStroke( 0.5f ), Color.GRAY );
> >>     axisProperties.getXAxisProperties().setGridLineChartStroke( xAxisGridLines );
> >>     axisProperties.getXAxisProperties().setShowGridLines(
> >> AxisTypeProperties.GRID_LINES_ONLY_WITH_LABELS);
> >>     axisProperties.getXAxisProperties().setShowTicks( AxisTypeProperties.TICKS_NONE );
> >>     axisProperties.getXAxisProperties().setPaddingBetweenAxisAndLabels(5.0f);
> >>    
> >>     
> >>     //generation finale
> >>     AxisChart axisChart= new AxisChart( dataSeries, chartProperties, axisProperties,null,
> 700,
> >> 500 );
> >>     
> >>    
> >>    // axisChart.xAxis=new XAxis(axisChart,this.intervalle);
> >>     
> >>      try{
> >>           JPEGEncoder13.encode(axisChart,1.0f,new
> >> FileOutputStream(prop.getProperty("GRAPHE")+chemin+".jpg"));
> >>             }
> >> 
> >> __________________________________________________________________
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> >
> >
> >
> >        
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