I've set the maxColWidth property, but it doesn't seem to work with a horizontal 3D stacked bar chart.
Here's the XML:
<chart maxColWidth="50" decimals="0" yAxisValuesStep="2" showValues="0" borderThickness="1" showBorder="1" yAxisName="Count">
<categories>
<category label="cat1"/>
<category label="cat2"/>
</categories>
<dataset seriesName="Series1">
<set value="3"/>
<set value="3"/>
</dataset>
<dataset seriesName="Series2">
<set value="0"/>
<set value="0"/>
</dataset>
</chart>
Thanks,
Josh