Shawn Quinn - 2011-12-21

Very cool to hear that you've got the StockChart widget rendering well with 20k data points! I haven't seen the problem you're describing, so I can't say for sure if that's a GWT Highcharts issues or a core Highstocks issue. Here's some example code of a working StockChart example that doesn't have any trouble with the navigator area:

final StockChart chart = new StockChart()
    .setChartTitle(new ChartTitle()
        .setText("USD to EUR")
        .setFloating(true)
        .setAlign(ChartTitle.Align.RIGHT)
        .setX(-20)
        .setY(20)
    )
    .setRangeSelector(new RangeSelector()
        .setSelected(1)
        .setInputEnabled(false)
    )
    .setExporting(new Exporting()
        .setEnabled(false)
    )
    .setCredits(new Credits()
        .setEnabled(false)
    )
    .setWidth100()
    .setHeight100();

chart.getXAxis()
    .setMaxZoom(14 * 24 * 3600000); // fourteen days

chart.addSeries(chart.createSeries()
    .setName("USD to EUR")
    .setPoints(getUSDtoEURData())
);

Not sure if any of that sample code points you in the right direction. If not, can you post a simplified version of the code you're using to render the StockChart so that we can try and reproduce?

BTW - If you have any tips for others on how to get large data sets to render nicely in a StockChart, it'd be great if you could post some thoughts on this forum. That question has come up a couple of times, so if you can share about any tricks you learned in getting your use case working well I know that would be appreciated.