def fetchGenKWData(self, gen_kw_fetcher, key, cases):
plot_data = PlotData(key)
histogram_factory = ReportStepLessHistogramPlotDataFactory(key)
for case in cases:
ensemble_data = gen_kw_fetcher.fetchData(key, case)
plot_data.setShouldUseLogScale(ensemble_data["use_log_scale"])
ensemble_plot_data = EnsemblePlotData(key, case)
ensemble_plot_data.setEnsembleData(ensemble_data["x"], ensemble_data["y"], [], [])
ensemble_plot_data.updateBoundaries(ensemble_data["min_x"], ensemble_data["max_x"], ensemble_data["min_y"], ensemble_data["max_y"])
plot_data.addEnsembleData(ensemble_plot_data)
histogram_factory.addEnsembleData(case, ensemble_data["x"], ensemble_data["y"], ensemble_data["min_y"], ensemble_data["max_y"])
plot_data.setHistogramFactory(histogram_factory)
return plot_data
