make plot background white (grey conflicted with grey series)
@@ -302,6 +302,10 @@ public class Plotter {
final XYPlot plot = createPlot(problem, shipments, solution);
JFreeChart chart = new JFreeChart(title, plot);
+ plot.setBackgroundPaint(Color.WHITE);
+ plot.setDomainGridlinesVisible(false);
+ plot.setRangeGridlinesVisible(false);
+
LegendTitle legend = createLegend(routes, shipments, plot);
chart.removeLegend();
chart.addLegend(legend);
