PlotWithOverview reset zoom during redraw.

[Андрій Карп'як]

Hello.

I have problem with PlotWithOverview  class when zooming.

Actually zooming work fine but after i call redraw zooming is lost.

My code is:

        PlotWithOverview plot;

        ... plot options:

        PlotWithOverviewModel plotModel = new PlotWithOverviewModel();

        final PlotOptions plotOptions = PlotOptions.create();

plotOptions.setGlobalSeriesOptions(GlobalSeriesOptions.create());

plotOptions.setLegendOptions(LegendOptions.create().setShow(false));

plot = new PlotWithOverview(plotModel, plotOptions);

plot.getOverviewOptions().getGlobalSeriesOptions().setShadowSize(0).getLineSeriesOptions().setFill(false);

plot.setWidth(800);

plot.setHeight(600);

        ... code responsible for zooming

private void zommYAxis(int delta) {

if (delta > 0) {

plot.getWindowPlot().zoom(Zoom.create().setAmount(delta));

plot.getOverviewPlot().zoom(Zoom.create().setAmount(delta));

} else {

plot.getWindowPlot().zoomOut(Zoom.create().setAmount(delta));

plot.getOverviewPlot().zoomOut(Zoom.create().setAmount(delta));

}

}

        ... some where later 

       

        plot.redraw();

I'm not sure if this is my fault and i forget call some hing or this is library issue.

[Nicolas Morel]

flot does not really have a redraw function. gflot tries to make one by recreating the plot entirely when calling the redraw method.

The calls to zoom or pan are made directly to flot and I have no idea where it stores the result.

So when you call redraw(), the plot is recreated with your base options.

You can try to call : 

plot.setupGrid();
plot.draw();

instead of redraw(). 

If you changed the datas, try :

plot.getPlot().setData( getSeries() );

plot.setupGrid();

plot.draw();

Or you can save all the calls to your method and replay them after a redraw...

[Андрій Карп'як]

Thx. For Your quick response.

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