Bar Chart - X Axys label with Y Serie 2 value

Ilija Angulovich

<p>Hi everyone,</p>
<p> </p>
<p>I´m using open source Birt 4.2.0 and trying to design a Bar Chart with 2 "Y series". One with a value and other with the accumulated. In the X serie i put the year and all is grouping by the year.</p>
<p> </p>
<p>In the X label i want to put the value corresponding with the Second serie of the Y Axis (the value of the year).</p>
<p> </p>
<p>I´ve tryed to do it like this:</p>
<pre class="_prettyXprint _lang-js">
var index = null;
var maxSerie = null;
var counter = 0;
var listVentas;

function beforeGeneration( chart, icsc ) {
    importPackage(Packages.org.eclipse.birt.chart.model.component.impl);
    importPackage(Packages.org.eclipse.birt.chart.model.data.impl);
    importPackage(Packages.org.eclipse.birt.chart.model.attribute);
    importPackage(Packages.org.eclipse.birt.chart.model.attribute.impl);
    
    sd = chart.getAxes().get(0).getAssociatedAxes().get(0).getSeriesDefinitions().get(1);
    rs = sd.getRunTimeSeries();
    //Inicio contador del total de los valores para la linea de la derecha
    var contTotal = 0 ;
    var max = 0;
    listVentas = rs.get(0).getDataSet().getValues();
    for (var i = 0; i < listVentas.length; i++){
        contTotal = contTotal + listVentas[i];
        if (listVentas[i] > max){
            max = listVentas[i];
            maxSerie = max;
            index = i;
        }
    }        
}


function beforeDrawDataPoint(dph, fill, icsc)
{    
    temp = dph.getOrthogonalValue();
    tempF = maxSerie;
    if(dph.getIndex() == index && temp == tempF && counter == 0) {
        fill.set(185, 206, 149);
        counter += 1;
    }
}

 
function beforeDrawDataPointLabel( dph, label, icsc )
{    
    var mylab = listVentas[dph.getIndex()];
    label.getCaption().setValue(mylab);
}

</pre>
<p>Doesn´t work...</p>
<p>Then I tryed to change it with a text but nothing change... the label appears empty</p>
<pre class="_prettyXprint _lang-js">
function beforeDrawDataPointLabel( dph, label, icsc )
{
label.getCaption().setValue("XX");
}
</pre>
<p>Some idea?</p>
<p> </p>
<p>Thaks!</p>

Clement Wong

<p>You want the label on the axis changed so instead of your code that's the beforeDrawDataPointLabel event, move it to the beforeDrawAxisLabel event instead.</p>
<p> </p>
<p> </p>
<p>You'll need to check which Axis you're changing so that's why there's an IF statement:</p>
<pre class="_prettyXprint">
function beforeDrawAxisLabel( axis, label, icsc )
{

importPackage(Packages.org.eclipse.birt.chart.model.attribute);
//LINEAR_LITERAL
//LOGARITHMIC_LITERAL
//TEXT_LITERAL
//DATE_TIME_LITERAL
if (axis.getType() == AxisType.DATE_TIME_LITERAL) {

   var mylab = listVentas[dph.getIndex()];
   //var mylab = "hi";
   label.getCaption().setValue(mylab);
}
 
}


</pre>