assertTrue(plot1.equals(plot2));
// datasetToRangeAxisMap...
plot1.mapDatasetToRangeAxis(11, 11);
assertFalse(plot1.equals(plot2));
plot2.mapDatasetToRangeAxis(11, 11);
assertTrue(plot1.equals(plot2));
// renderer - no longer a separate field but test anyway...
plot1.setRenderer(new AreaRenderer());
assertFalse(plot1.equals(plot2));