double min = chartZoomEvent.getChartArea().getxAxisMin();
double max = chartZoomEvent.getChartArea().getxAxisMax();
LinkedHashSet<DateTimePoint> detailPoints = new LinkedHashSet<InvientCharts.DateTimePoint>();
DateTimeSeries detailChartSeries = (DateTimeSeries) detailChart
.getSeries("USD to EUR");
detailChart.removeSeries(detailChartSeries);
for (DateTimePoint point : masterChartSeries.getPoints()) {
if (point.getX().getTime() > min
&& point.getX().getTime() < max) {
detailPoints.add(new DateTimePoint(detailChartSeries,