code: protected JRDesignChart createChart(ar.com.fdvs.dj.domain.chart.DJChart djChart, String name) {
          JRDesignGroup jrGroupChart = getChartColumnsGroup(djChart);
          JRDesignGroup parentGroup = getParent(jrGroupChart);
          Map chartVariables = registerChartVariable(djChart);
          return djChart.transform((DynamicJasperDesign) getDesign(), name, jrGroupChart, parentGroup, chartVariables, getReport().getOptions().getPrintableWidth());
      }
docs: Creates the JRDesignChart from the DJChart. To do so it also creates needed variables and data-set
  
  @param djChart
  @return