dynamic Max Scale of a meter chart

Kchiri Yassine

<p>Hi<br>
I'm working on a meter chart that shows me the count of each string in a column of a dataset<br>
so to set dynamicaly the scale I used the beforeGeneration method of the meterchart and the onfetch method of the dataset</p>
<p><strong>onFetch script:</strong></p>
<p>reportContext.setPersistentGlobalVariable("Maxpgs", row["pgs_total"].toString() );<br><strong>BeforeGeneration script:</strong></p>
<p>function beforeGeneration( chart, icsc )<br>
{<br><br>
                            importPackage( Packages.org.eclipse.birt.chart.model.impl );<br>
                importPackage( Packages.org.eclipse.birt.chart.model.type.impl );<br>
                importPackage( Packages.org.eclipse.birt.chart.model.attribute );<br>
                importPackage( Packages.org.eclipse.birt.chart.model.attribute.impl );<br>
                importPackage( Packages.org.eclipse.birt.chart.model.data.impl );<br>
                importPackage(Packages.org.eclipse.birt.chart.model.component.impl);<br>
                <br>
                seriesDef = chart.getSeriesDefinitions().get(0);<br>
                meter1 = seriesDef.getSeriesDefinitions().get(0).getRunTimeSeries().get(0);<br>
                mdial = meter1.getDial( );<br>
                mscale = mdial.getScale( );<br>
                mscale.setStep( 50 );<br>
                mscale.setMin( NumberDataElementImpl.create( 0 ) );<br>
                max=icsc.getExternalContext().getScriptable().getPersistentGlobalVariable("Maxpgs")<br>
                mscale.setMax( NumberDataElementImpl.create( max  ) );<br>
                    <br>
}</p>
<p>it work perfectly when i don't use the optional grouping, but when i use the grouping which allow me to count the number of each string of that column, it set the maximum scale only for the first instance of the chart and let the others with the default value which is 1</p>
<p>So How can i set the Max Scale for all the instances of the meterchart<br><br>

JFreeman

<p>When you use the optional grouping, a new series is created for each group that is created and the way your code is setup you are explicitly setting the scale for only the first series. Instead you will need to iterate through each series and apply the desired scale.</p>
<p> </p>
<p>For example:</p>
<pre class="_prettyXprint _lang-js">
function beforeGeneration( chart, icsc )
{
importPackage( Packages.org.eclipse.birt.chart.model.data.impl );

var seriesDef = chart.getSeriesDefinitions().get(0);
var seriesIterator = seriesDef.getSeriesDefinitions().get(0).getRunTimeSeries().listIterator();
while(seriesIterator.hasNext()){
var meter = seriesIterator.next();
var meterDial = meter.getDial();
var meterScale = meterDial.getScale();
meterScale.setStep(3);
meterScale.setMin(NumberDataElementImpl.create(0));
meterScale.setMax(NumberDataElementImpl.create(15));
}
}
</pre>
<p>I have also attached a sample report with this code in place for reference.</p>